oms1664 topic 4 - 1_3installation&commissioning

Marconi Topic 4 1PHA60131AAVCopyright- Refer to title page Issue 04

THIS DOCUMENT IS UNCONTROLLED WHEN PRINTED

Table of Contents

Table of Contents...........................................................................1

List of Figures ................................................................................5

List of Tables..................................................................................9

Chapter 1: Installation .................................................................11

1.1 OMS1664 Installation Sequence .............................................. 11

1.1.1 Install Rack - Raised Modular Floor ................................................... 11

1.1.2 Fitting Double Channel, Drop Rods and ‘U’ Brackets ........................ 15

1.1.3 Installation Under Overhead Ironwork................................................ 18

1.1.4 Fit EF80 .............................................................................................. 20

1.1.5 Cable and Fibre Management Devices .............................................. 21

1.1.6 Cable Bracket ..................................................................................... 21

1.1.7 Fibre Spools ....................................................................................... 23

1.1.8 Cable Brake-out Bracket .................................................................... 24

1.1.9 Cable Management Bars.................................................................... 24

1.1.10 Installing OMS 1664 Subrack............................................................. 26

1.1.11 Installing OMS 1654 Subrack............................................................. 28

1.1.12 Fan Tray Installation ........................................................................... 30

OMS1664Topic 4: Installation and Commissioning

Release 1.3

OMS1664 Product Family Installation and CommissioningRelease 1.3 Contents


1.1.13 Slide in Unit Insertion/Removal .......................................................... 31

1.1.14 Slide in Unit Handling ......................................................................... 31

1.1.15 Installation Procedure......................................................................... 32

1.1.16 SIU Extraction/Insertion...................................................................... 33

1.2 DC Power And Earthing ............................................................ 35

1.2.1 General ............................................................................................... 35

1.2.2 Install DC Cables................................................................................ 37

1.2.3 Preparation of ETSI Fuse Rail............................................................ 41

1.2.4 Preparing Sub-Rack Power Leads to DC Rail ................................... 43

1.2.5 Earthing .............................................................................................. 44

1.2.6 Subrack Fan Tray............................................................................... 45

1.2.7 Fan Tray Power Supply...................................................................... 47

1.2.8 Cable Routing..................................................................................... 48

1.2.9 Fan Fusing.......................................................................................... 48

1.3 Cabling and Terminating Copper............................................. 49

1.3.2 Cabling to OMS1664 .......................................................................... 50

1.3.3 Cabling to OMS1664 LTU Interface Area........................................... 50

1.3.4 Cabling to STM-1 High Band Trib Area.............................................. 60

1.3.5 Cabling to OMS1654 .......................................................................... 64

1.3.6 LTU Interface Area ............................................................................. 64

1.3.7 Fan Tray Alarm Cabling...................................................................... 67

1.3.8 Removal of 1.0/2.3 Connectors.......................................................... 68

1.3.9 Power Cable ....................................................................................... 69

Cabling And Terminating – Fibre.......................................................... 70

1.4.1 General Cabling Rules – Fibre Optic Cables ..................................... 70

1.4.2 Inspection And Cleaning Of Optical Fibres ........................................ 70

1.4.3 Managing Fibres Within The Rack ..................................................... 71

1.4.4 Managing Optical Fibres – OMS 1664 Subrack................................. 73

1.4.5 Managing Optical Fibres – OMS 1654 Subrack................................. 75



1.4.6 STM-1 Optical and Electrical Mix ....................................................... 75

1.5 Code Of Practice - Handling Of Electrostatic Devices ........... 77

1.5.1 Introduction ......................................................................................... 77

1.5.2 General Handling Procedures ............................................................ 77

1.5.3 Portable Field Service Kit (PFSK) And Safe Handling Areas (SHAs) 78

1.5.4 Wrist Strap Tester............................................................................... 78

1.5.5 Test Records ...................................................................................... 79

Chapter 2: Commissioning..........................................................81

2.1 Introduction ............................................................................... 81

2.1.1 Introduction and Scope....................................................................... 81

2.1.2 EMC Protection .................................................................................. 81

2.1.3 Static Sensitive Warning..................................................................... 81

2.1.4 Cleaning Procedures for Optical Connectors ..................................... 81

2.1.5 Test Equipment .................................................................................. 82

2.1.6 Information Required For Commissioning.......................................... 84

2.2 OMS1664 Shelf Configuration & Rules.................................... 86

2.2.1 OMS1664 Standard Shelf Configuration ............................................ 86

1:1 MSP STM-1 Trib Protection......................................................................... 95

2.2.2 OMS1634 Shelf Configuration.......................................................... 100

2.3 OMS1654 (Compact) Typical Shelf Configurations .............. 106

2.4 OMS1644 Typical Shelf Configuration................................... 110

2.4.1 OMS1644 STM-16 ADMUX: Up to 126 x 2Mbit/s Ports................... 110

2.5 Preliminary Checks ................................................................. 113

2.5.1 Inspection ......................................................................................... 113

2.5.2 ALS Link Settings ............................................................................. 114

2.5.3 Summary of all Card/Port ALS Links (inc. Default Settings) ........... 114

2.5.4 Summary of all NM/LCT ALS Control options.................................. 115

2.5.5 STM-1 Traffic Card Link Settings ..................................................... 122

2.5.6 Single Fibre Working Links on Optical Modules............................... 124



2.5.7 STM-4 Traffic Card Link Settings ..................................................... 124

2.5.8 STM-16 Traffic Card Link Settings ................................................... 127

2.5.9 STM-16 Core Card Link Settings .................................................... 127

2.5.10 Flexible STM-1/4 Traffic Card (SFP Based) – 8 Port and 16 Port Version.......................................................................................................... 128

2.5.11 Flexible STM-1/4 Traffic LTU ........................................................... 129

2.5.12 Management and Sync LTU Link Settings ....................................... 131

2.5.13 Power LTU Link Settings .................................................................. 132

2.5.14 Alarms and Aux LTU ........................................................................ 132

2.5.15 Ethernet 100M LTU SFP Link Settings ............................................ 134

2.5.16 Card Installation................................................................................ 135

2.5.17 Power Supply & Rack Alarm Checks ............................................... 135

2.6 Local Craft Terminal Installation Information ....................... 137

OMS1664 Product Family Installation and CommissioningRelease 1.3 List of Figures


List of Figures

Figure 1-1: End View Of Suite..................................................................................................... 12

Figure 1-2: ETSI Rack with Cable Duct Cut Out Template (900x300)........................................ 13

Figure 1-3: Fitting Trim (Typical Only) ......................................................................................... 13

Figure 1-4: RMF Support Where Floor Void Is Less Than 350mm............................................. 15

Figure 1-5: RMF Support Where Floor Void Is Greater Than 350mm ........................................ 18

Figure 1-6: Additional and Modified Brackets (2.6m Ironwork). .................................................. 20

Figure 1-7: Aligning EF80............................................................................................................ 21

Figure 1-8: Mounting Plate .......................................................................................................... 22

Figure 1-9: Cable Bracket............................................................................................................ 22

Figure 1-10: Bracket Finger Orientation ...................................................................................... 22

Figure 1-11: Side Mounting Plate................................................................................................ 23

Figure 1-12: Fibre Management Spool and Bracket ................................................................... 24

Figure 1-13: Cable Brake-out Bracket......................................................................................... 24

Figure 1-14: Cable Management Bar (Standard Subrack).......................................................... 25

Figure 1-15: Cable Management Bar (Compact subrack) .......................................................... 25

Figure 1-16: Shelf Mounting Bracket........................................................................................... 27

Figure 1-17: Mounting Bracketsa ................................................................................................ 27

Figure 1-18: OMS1654 Subrack.................................................................................................. 28

Figure 1-19: Fan Tray Installation ............................................................................................... 30

Figure 1-20: SIU .......................................................................................................................... 32

Figure 1-21: Sketch of the OMS1664 Infrastructure ................................................................... 36

Figure 1-22: Typical termination of the Rack Top Fuse Rail ....................................................... 40

Figure 1-23: ETSI DC Power Rail (Typical Only) ........................................................................ 41

Figure 1-24: 0 Volt Earth Rail ...................................................................................................... 41

Figure 1-25: Factory Assembled Power Looms .......................................................................... 43

Figure 1-26: Factory Assembled Power Looms .......................................................................... 43

Figure 1-27: Power LTUs DC cables........................................................................................... 44

Figure 1-28: Rack Protective Earth Terminal .............................................................................. 44



Figure 1-29: Subrack Safety Protective Earth Terminal.............................................................. 45

Figure 1-30: Fan Tray.................................................................................................................. 46

Figure 1-31: Fan Tray Earthing ................................................................................................... 46

Figure 1-32: Filter Cleaning ......................................................................................................... 47

Figure 1-33: Cable Routing ......................................................................................................... 48

Figure 1-34: LTU Area. 32 Ports Per Card.................................................................................. 51

Figure 1-35: Typical Cabling Layout in a 900 x 3000mm Rack .................................................. 52

Figure 1-36: Cables formed to front of LTU 1 to 6....................................................................... 53

Figure 1-37: Running Stitch......................................................................................................... 54

Figure 1-38: Cable Forming Diagrams........................................................................................ 54

Figure 1-39: Securing Form to CMB with Cable Tie ................................................................... 56

Figure 1-40: Tribs 1-4 Cabled with ST 212 Coaxial Cable.......................................................... 56



Figure 1-43: Plugging and Dressing of Cables (1) ...................................................................... 59



Figure 1-46: STM 1E High Band Trib Cards ............................................................................... 61

Figure 1-47: STM-1 Electrical Lower Shelf Cable Management ................................................. 62

Figure 1-48: STM-1 Electrical Upper Shelf Cable Management ................................................. 62

Figure 1-49: Cabling of an STM-1 Electrical and Optical Mix ..................................................... 63

Figure 1-50: LTU Area Interface.................................................................................................. 64

Figure 1-51: 75 ohm interface/ 120 ohm interface ...................................................................... 65

Figure 1-52: Permitted Cable Forms........................................................................................... 66

Figure 1-53: Cable Management Bar .......................................................................................... 67

Figure 1-54: Fan Tray Alarm Cabling .......................................................................................... 67

Figure 1-55: Alarm Cable Assembly............................................................................................ 68

Figure 1-56: Lower and Upper LTU Areas .................................................................................. 69

Figure 1-57: Kopex Flexible Conduit ........................................................................................... 71

Figure 1-58: Typical Installation................................................................................................... 71

Figure 1-59: Fibre Spool.............................................................................................................. 73



Figure 1-60: Mid Shelf Fiber Guides ........................................................................................... 74

Figure 1-61: View Showing Card Cage with STM-1 Optical Tribs .............................................. 74

Figure 1-62: Wrist Strap Tester ................................................................................................... 78

Figure 2-1: EPL-100 Fast Ethernet LTU Interface:- .................................................................... 84

Figure 2-2: Two pair Cross-over UTP Fast Ethernet Test Cable ................................................ 84

Figure 2-3: OMS1664 Standard Shelf ......................................................................................... 86

Figure 2-4: STM-16 Cross Connect: Up to 8 x STM-16 Ports..................................................... 93

Figure 2-5: STM-16 Cross Connect: Up to 128 x STM-1 Ports................................................... 94

Figure 2-6: STM-16 Cross Connect: Up to 504 x 2Mbit/s Ports.................................................. 95

Figure 2-7: STM-16 Add-Drop Multiplexer: Up to 128 x STM-1 Ports......................................... 97

Figure 2-8: STM-16 Add-Drop Multiplexer: Up to 504 x 2Mbit/s Ports........................................ 98

Figure 2-9: OMS1634 (Compact) 2Mb/s Admux Shelf.............................................................. 106

Figure 2-10: OMS1654 (Compact) STM-1 Admux shelf ........................................................... 107

Figure 2-11: Subset of ALS Configurability Currently Supported By OMS1664 ....................... 118

Figure 2-12: ALS Shelf Commissioning Process Flowchart...................................................... 120

Figure 2-13: ALS Card Insertion Process Flowchart................................................................. 121

Figure 2-14: ALS link settings for an STM-1 Trib/Traffic card (Sketch) .................................... 122

Figure 2-15: ALS Link Settings for an STM-1 Trib/Traffic card (Photo) .................................... 123

Figure 2-16: Blow-up of Link Area for STM-1 Trib/Traffic Card................................................. 123

Figure 2-17: ALS link settings for an STM-4 Trib/Traffic card (Photograph)............................. 126

Figure 2-18: Blow-up of Link Area for STM-4 Trib/Traffic Card................................................. 126

Figure 2-19:STM-16 Core Card Link Settings ........................................................................... 127

Figure 2-20: Link Settings for Flexible STM-1/4 Traffic Card .................................................... 129

Figure 2-21: Link Settings for Flexible STM-1/4 LTU ................................................................ 130

Figure 2-22: Management and Sync LTU ................................................................................. 131

Figure 2-23: Link settings for the Alarms & Aux LTU ................................................................ 133

Figure 2-24:Schematic and Picture of Ethernet 100M LTU Link Settings................................. 134

Figure 2-25: Power Connectors ................................................................................................ 136



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OMS1664 Product Family Installation and CommissioningRelease 1.3 List of Tables


List of Tables

Table 1-1: Item Codes for figures Figure 1-4 and Figure 1-5...................................................... 15

Table 1-2: Marconi Part Numbers ............................................................................................... 36

Table 1-3: OMS1664 Full Shelf Typical Power Consumption ..................................................... 37

Table 1-4: DC Rail Part Codes.................................................................................................... 42

Table 2-1: LCT to OMS1664 Interface Cable.............................................................................. 83

Table 2-2: Standard Shelf Line/Trib Units Slot Allocation ........................................................... 87

Table 2-3: Standard Shelf LTU Units Slot Allocation .................................................................. 92

Table 2-4: LTU Port Numbers ..................................................................................................... 96

Table 2-5: STM-1 Ports with Different Line Functionality............................................................ 97

Table 2-6: LTU Port Numbers ..................................................................................................... 98

Table 2-7: OMS1654 Shelf Slot Allocation ................................................................................ 108

Table 2-8: ALS configurability per card ..................................................................................... 119

Table 2-9: Switch settings for Management & Sync LTU.......................................................... 132

OMS1664 Product Family Installation and CommissioningRelease 1.3 List of Tables


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OMS1664 Product Family Installation and CommissioningRelease 1.3 Installation


Chapter 1:Installation

1.1 OMS1664 Installation SequenceNote: Prior to the start of ANY activity (Installation or Commissioning) on an In-

Service exchange, or on ANY equipment within a live/ in-service environment,the Engineer must contact the relevant overall installation authority.

Note: It must be remembered that after installing and commissioning on an in serviceexchange all doors, end panels, ducting covers and screws should be refitted.This will ensure that the integrity of the faraday cage (EMC) is notcompromised.

The ETSI rack is a 900mm x 300mm rack and will accommodate a fully cabledsubrack, Fibre splice shelf and a DC Distribution Panel.

1.1.1 Install Rack - Raised Modular FloorWARNING!

On customer sites where halon fire suppression systems are in operation,ensure that these systems are set to ‘manual’ whilst the building or room is inoperation. Remember to reset the system to ‘automatic’ upon vacating the roomor building.

Care should be exercised to ensure that any discharge heads, which may besituated in the floor void, are not accidentally damaged.

Note: Prior to positioning of the racks, all under-floor ironwork and cable trays shouldbe installed.

There are two types of RMF supports documented in this section and should beinstalled to suit site conditions:

� Where floor void is less than 350mm (refer to 1.1.1.2).

� Where floor void is greater than 350mm (refer to 1.1.2.1).

Note: Front access ETSI racks positioned on a raised modular floor, require fixingthrough the tiles to the sub-floor. If a single 300mm deep rack is to be installedwithout an adjacent rack to the rear, both front & rear holes must be used withfixings to the sub-floor. Back to back racks require only the front holes of eachrack to secure. Refer to Figure 1-1: End View Of Suite



Figure 1-1: End View Of Suite

600x600 TILE

FFF R

SINGLE ROW

BACK TO BACK

1.1.1.1 Preparation of Apparatus RoomModify Floor Tiles

Access holes will require cutting in each tile position for cabling, conduit entry and rackfixing points. Refer to Figure 1-2 for the drilling and cut out template when siting anETSI rack on a RMF.

Using the measurements on the template, mark the drilling positions and cable accesshole.

Note: The measurements cover more than one 600 x 600 mm square tile.

Mark on the top of the tile the orientation before removing the tiles and take to thework area.

WARNING!

Ensure the area is cornered off prior to the removal of the floor tile.

Note: Modification to floor tiles should only be undertaken by operators fully trainedin woodworking techniques or under authorised supervision.

Note: It is a mandatory requirement to wear ear defenders, eye shields and glovesduring the drilling and cutting operations.

Note: Any drilling operation on site should be carried out in such a manner as tokeep dust and debris from contaminating adjacent equipment.

Secure the tile to the workmate using ‘G’ clamps protecting the vinyl / carpet surfacefrom possible damage. Spot drill the four previously marked holes using a 6 mm bitdrilling from the top surface of the tile only.

Enlarge each hole to the required size using the appropriate drill bits.

Spot drill each corner of the marked area for the cable access hole using a 6 mm bit.Enlarge the holes sufficiently to accept the jigsaw blade.



Starting from the pilot holes, cut cable slot along marked lines, exercising care to keepthe jigsaw blade perpendicular to the tile during the cutting operation. It may beadvisable to do the top cut from the top surface and trim from the bottom surface ofthe tile later to obtain smooth and straight edges.

Using a file, smooth all sharp edges from the drill holes and slots. Inspect the tiles toensure they have straight and smooth edges.

Figure 1-2: ETSI Rack with Cable Duct Cut Out Template (900x300)

600mm

120mm

60mm

70mm

Extra pedestals refer to note.

180mm

Note: Where racks are positioned back to back on a cut tile, the tile will require extrasupport. This is to be achieved with the use of additional pedestals positionedstrategically along the tile centre line.

Measure the circumference of the slot, and allowing for an overlap at the joint, cutPVC (1MAA 12174 AES) and trim to the required length. The trim is to be fitted fromthe underside of the slot.

Fix PVC to the tile using 25mm wire nails. If necessary use hot airgun at the corners toobtain a good fit.

Figure 1-3: Fitting Trim (Typical Only)

F lo o r T ile

C u t to O b ta in aB u tt F it

C a b le A c c e s s

E q u i-s p a c e dN a il P o s it io n s

P V C T rim1 M A A 1 2 1 7 4 A E SV in y l o r C a rp e t

C o v e rin g

M e ta l

A p p ly H e a t

H .D . C h ip b o a rd



Take the floor tile to the equipment area and replace in position ensuring correctorientation.

When drilling and cutting are completed the area should be swept clean of anyaccumulated dust or debris.

Note: The installers should be supplied with a site installation folder from theappropriate overall installation authority giving information concerning earthingand cable size for an individual site.

1.1.1.2 Install RMF Support Where FV is Less than 350mmSelect the area work is to commence. It is advisable not to have too many floor tilesraised at any one time.

Mark each tile on the underside with an indelible marker (position and orientation oftile) as they are lifted to ensure they are relocated in the same position.

WARNING!

Prior to lifting any floor tiles ensure the area to be worked in is cordoned offusing cones and barrier tape. Warning signs must be placed at all entrancepoints to the room being worked in.

Using a correctly orientated floor spotting aid, mark the sub floor for correct positioningof the brackets, under the 600 x 600 tile.

Mark the positions of the holes to be drilled on the floor and drill out the two holes to amaximum depth of 32mm using an 8mm masonry bit for concrete floors.

Insert rawlplugs 1MAB 00129 AAJ into each drilled hole.

Note: Installer to use drill stops to ensure that the maximum depth of 32mm is notexceeded.

WARNING!

Before drilling into walls or floors, a check must be carried out using acable/conduit detector to ensure that there are no buried services.

Secure the four ‘U’ Brackets to the floor using screws 1MAB 00132 ACT andassociated fixings, refer to Figure 1-4.

Clear away any dust and debris from the drilling area.



1.1.2 Fitting Double Channel, Drop Rods and ‘U’ Brackets

Figure 1-4: RMF Support Where Floor Void Is Less Than 350mm

ETSI RACK FRONT

1711 4

2

8

53

9 10

1314 15 16 17

18

19

Using a length of double channel (cut on site to suit), refer to Figure 1-4 for a typicalunder-floor support KOP.

Table 1-1: Item Codes for figures Figure 1-4 and Figure 1-5

ITEM

NO

CODE DESCRIPTION QTY

Fig 4.4

QTY.

Fig.4.5

1 1MAB00534AEJ M6x50mm HEX. Screw 2 2

2 1MAB00047AAD M6 Washer 2 2

3 1MAB00277AAM M6 Special Nut 2 2

4 1MAB00010AAS M12 HEX.Nut ‘S’ 6 -

5 1MAB00273AAD M12 Special Nut 2 6

6 1MAB00279AAR M12x22mm HEX. Screw - 6

7 1MAB00274AAF SQ, Plate Washer 2 -

8 1MAB00132ACT M8 Coach Screw 4 2

9 1MAB00268AAY M8 Flat Washer 4 2

10 1MAA01896ABF Nylon Plug 4 2

11 1MAA11841AAV M6 x 6 Lug 1 1

12 1MAB00006AAQ M6 Nut 1 1

13 1MAB00534ABG M6 x 20mm HEX. Screw 4 1

14 1MAB00059AAX M6 Shakeproof Washer 1 1

15 1WAA10050ADL 4mm G/Y Earth Cable 1 1

16 1MAB00338AJY M12 Threaded Rod 229mm 2 -

17 1MAC10133AAS 16 O/D Plastic Sleeving 1 -

18 1MAA00588ABE 41x 41 Channel 600Long 1 1

19 1MAA00589AAP Bracket ‘U’ 2 -

20 1MAA00587AAK Bracket 90° - 4



The length of double channel should be positioned directly below the rack fixing holes,previously drilled in the floor tiles.

Do not fully tighten saddle brackets screws until the racks and drop rods are fitted.

Repeat the above for each additional channel length identified on the site drawing. Fitend caps to all exposed ends of the channel.

Replace the suite of tiles, ready prepared with cable and fixing holes.

Ensure the correct orientation of the tiles.

Locate the rear of the racks along the suite line

WARNING!

The stability of the rack must be maintained at all times.

Once the racks are in position, remove the floor tile from the front of the rack to gainaccess for securing.

Note: If two racks are to be fitted back to back, only two drop rods are requiredunder each rack. If a single rack or suite of single racks is to be sited, theracks should be secured using the four rack fixing holes.

Cut the drop rods to suit and fit the nuts/washers as shown in Figure 1-4.

Note: 16mm conduit must be fitted over the rods also cut to suit, to protect cables.

Fit the nut near the top of the rod and feed up through the fixing holes in the base ofthe tile and rack, refer to. Figure 1-4.

Fit a further nut below the conduit, these nuts and washers are for bracing betweenthe underside of the tile and the channel.

Site the bottom of the rod into the saddle bracket or straight onto the channel, see .Figure 1-4.

Fit special nuts within the channel to capture top of drop rods. Check the drop rods arevertical before tightening any nuts.

Fit a nut and washer at the top of rod within the base of the rack and tighten. Securethe nuts and washers between the tile and channel and ensure the screws are nowfully tightened on the saddle bracket.

Continue fitting drop rods until all the racks are secured.

1.1.2.1 Install RMF Support Where FV is Greater than 350mmPrepare apparatus room and modify floor tiles as previously outlined above.

1.1.2.2 Position and Secure Right Angled Brackets to Sub FloorUsing a correctly orientated floor spotting aid, mark the sub floor for correct positioningof the brackets, under the 600 x 600 tile.

Mark the positions of the holes to be drilled on the floor and drill out the two holes to amaximum depth of 32mm using an 8mm masonry bit for concrete floors.



Insert rawlplugs 1MAB 00129 AAJ into each drilled hole.


WARNING!

Before drilling into walls or floors, a check should be carried out using acable/conduit detector to ensure that there are no buried services.

Secure the four right-angled brackets to the floor using screws 1MAB 00132 ACT andassociated fixings, refer to Figure 1-4.

Clear away any dust and debris from the drilling area.

Repeat the above for each additional channel length identified on the site drawing. Fitend caps to all exposed ends of the channel.

Fit Horizontal and Vertical Double Channel and Right Angled Brackets

Using length of double channel for the horizontal (cut on site to suit) this should bepositioned directly below the rack fixing holes, previously drilled in the floor tiles.

For the vertical double channel height measure the floor void and minus the depth ofthe horizontal double channel (cut to suit) x 2.

Present the vertical channels to the right angled brackets previously secured to thesub floor, secure with M12 x 22 screw (1MAB 00279 AAR) and M12 nut special(1MAB 00273 AAD), repeat for remaining vertical channels, see. Figure 1-5.

Fit a second right angled bracket to the top of the vertical, secure with fixings asabove.

Fit horizontal channel and secure with above fixings.

Note: Ensure two M10 nut specials (1MAB 00273 AAD) are fitted to the upper of thehorizontal channel and positioned to correspond with the rack fixing holespreviously drilled in the floor tiles.

Replace the suite of tiles, ready prepared with cable and fixing holes.Ensure thecorrect orientation of the tiles.

Locate the rear of the racks along the suite line.

WARNING!

The stability of the rack must be maintained at all times.



Figure 1-5: RMF Support Where Floor Void Is Greater Than 350mm

106

111 2

8

3

9

1513

1418

18

20

Note: Refer to Table 1-1 for Kop codes.

1.1.2.3 Moving Of Equipment On Raised Modular Floor AreasWARNING!

Extreme care must be taken when moving racks across reduced strength tiles,i.e. Tiles with cutouts, vents etc. Under no circumstances should the cutout areabe subject to load bearing, particularly when using narrow wheeled skoots.

Protection of the floor should be made by laying plyboard throughout the route therack has to be taken across the exchange room to its fixing position.

1.1.2.4 Position & Securing The Rack To Under-floor SupportAlign the front of the rack base to the tile edge or fixing holes and lower the four rackfeet to make contact with the floor.

Using a plumb line, align the rack vertically. Use the screw thread on each foot tomake adjustments as necessary.

A tolerance of +/-3mm is allowed on the vertical alignment of each rack.

Once the rack alignment is set, M12 x 50 mm bolts and washers can be used tosecure the racks through the tile to the double channel fixed below.

1.1.3 Installation Under Overhead IronworkRefer to site specific information provided by the overall installation authority, for therack location.

With reference to the floor plan, and floor markings , identify the positions in which theracks are to be installed.



Check that;

1 The floor is clearly marked, if not remark as necessary.

2 The location of Equipment racks, DDF’s, etc are known.

Note: Site supervisors should be aware that the 900x300 ETSI racks weighs approx.85Kg unequipped. Mechanical handling aids should be used whereverpossible to move racks within an exchange.

Anti static precautions must be observed when erecting racks.

The rack should be transported as near as possible to its final location still in itspacking.

Remove the rack from its packing. Care should be exercised to avoid the spring actionof the polyprop retaining bands. Gloves and eye protection must be worn.

Consultation with the Customers Representative to agree on a suitable area forunpacking of racks materials should be made prior to commencing this activity.

Lower the rack to the floor. Ensure the stability of the rack is maintained.

When all packing has been removed, carry out a visual check to ensure that noobvious damage has occurred to the metalwork or internal cabling duringtransportation.

Refer to the floor plan for the position the rack is to be installed.

Align the front of the rack base to the tile edge or fixing holes and lower to the floor.

Note: The last stages of moving and erecting a rack will normally be done manually.Site Supervisors are to ensure sufficient staff is available for this activity.

Align the rear of the rack to the suite datum line.

Using a plumb line, align the rack vertically. Use the screw feet at the base of the rackas necessary.

A tolerance of +/- 3mm is allowed on the vertical alignment of the equipment.

Note: All four, rack feet must be in full contact with the floor.

1.1.3.1 Fitting Of “C” And Figure Of “8” Brackets 2.6m IronworkAn ETSI rack with cable ducts may interfere with an existing suite’s figure of “8”brackets, when fitting back to back.

To accommodate this, the figure of “8” brackets will need modifying. Unbolt figure of“8” bracket (DT 40214/1), remove from the ironwork, and hacksaw a clearance sectionfrom the bottom. Remove all sharp edges with a file.

When a new SMA16/64 rack with associated ducts, backs on to an existing standardsuite (no ducts), the rack top fixing positions no longer align; additional figure of “8”and “C” brackets will have to be fitted to ensure rack stability.

Fit additional “C” and figure of “8” brackets where necessary, (dependent on suitelayout and ironwork height).



For 2.6m ironwork fit a bracket DT 40214/1 to the rack fixing point with a “C” bracketfixed above that.

Figure 1-6: Additional and Modified Brackets (2.6m Ironwork).

1.1.3.2 Fitting Of ‘C’ And Figure ‘8’ Brackets Under 2.2m OHI.When installing the racks for the SMA16/64 back to back with existing 600X300 racksunder 2.2meter OHI, the Figure of “8” support brackets (DT 40500) already in situ willnot align with the new rack fixing holes due to presence of cable ducts in the suite.

If the Engineer is in doubt how to resolve these problems they should contact MarconiMethod and Standards Dept in Liverpool.

1.1.4 Fit EF80Refer to Contract Engineering site drawings to identify the required position(s) for theEF80 fuse distribution panel.

Position the foot of the EF80 to the datum line. Using a plumb line ensures the verticalalignment of the EF80, and mark the two fixing holes in the base.

Note: A fixing hole will need drilling in the side of the cable duct if the EF80 is to befitted adjacent, mark the top fixing hoe in the EF80, see Figure 1-7.

Remove the EF80 and place in a safe position.

Modified Bracket

Bracket DT40214/1

Screws

1MAB20279AAR

Bracket DT40500/1

“C” Bracket

1MAA62959AAD

Screw MCH 12025

Nut 1MAB00010AAS

Existing Suite

Cable Duct



Drill two holes (opposite corners) using an 8mm drill bit to a depth not exceeding30mm and insert rawplugs 1MAB 20477 AAP into the holes. Ensure plug is flush withthe floor level.

Clear away dust and debris from the drilling area.


Align hole at the top of the EF80 to the side panel of the cable duct, and fastentogether using a M8 screw, washer and nut. Secure finger tight only.

Align the EF80 to the floor markings, insert screws NSR-1248/f625 (2 off) into thepreviously drilled holes. Do not fully tighten at this stage.

Using a plumb line, align the EF80 vertically using packing as necessary and fullytighten all floor and rack fixings.

Repeat the above for each EF80.

Figure 1-7: Aligning EF80

Fixing Hole

Drilled Hole

Cable Ducts(IRS)

EF80

1.1.5 Cable and Fibre Management Devices

1.1.6 Cable BracketThe ETSI 900 X 300 rack has a flexible solution to aid cable and fibre managementwithin the duct areas. Brackets provide the facility to support cable bundles andpartition the cables away from fibres.

The cable bracket is supported on a mounting plate a shown below.



Figure 1-8: Mounting Plate

The cable bracket is secured to mounting uprights provided in the cable duct. Thisoffers a number of fixing positions to attach a partition bracket.

Figure 1-9: Cable Bracket

Partition brackets are to be mounted onto the rear plate using bolts provided. Bracketfingers are to be orientated towards the subrack as shown below.

Figure 1-10: Bracket Finger Orientation

Rear Mounting Uprights

Partition Bracket



Refer to the cabinet face rack layout diagram to establish bracket locations within thecable ducts.

Note: The partition brackets for the OMS 1664 installation are to manage the STM-1cables within the duct.

Note: The LTU cables will be managed on the breakout cable brackets.

1.1.7 Fibre SpoolsFibre spools are fixed to a support plate which is mounted to the duct side uprights.

The front of the plate is provided with tapped holes for fixing the spool bracket to andwith the rear of the plate enabling COF type fibre cable to be supported using cableties.

The spool and bracket have a number of fixing positions on the plate for smalladjustments in the height.

Figure 1-11: Side Mounting Plate

Note: At least one spool should be mounted adjacent to the fibre managementdevice provided on the subrack. This enables fibres to be correctly routedaway from the subrack.

Note: Remaining spools can be used to manage excess length in patch cords.

Side plates are to be secured to the rack, using the fixings provided.

Front Rear



In turn secure the right-angle brackets to the side plates and attach the spool with thebolts supplied.

Figure 1-12: Fibre Management Spool and Bracket

1.1.8 Cable Brake-out BracketCable Brake-out brackets may be fitted in the rack cable ducts to support coax cablesentering and leaving the rack.

Figure 1-13: Cable Brake-out Bracket

The bracket is secured to the uprights in the cable ducts using the bolts provided.

1.1.9 Cable Management BarsCable management bars 1MAA 64703 AAS are required to be fitted above eachsubrack to provide support for copper cables connecting to the unit.

The number of cable management bars fitted will depend upon the number of cableslikely to be employed.

1.1.9.1 Standard SubrackTwo management bars will be required in Standard subrack installations (e.g. OMS1664) as shown below.



Figure 1-14: Cable Management Bar (Standard Subrack)

Cables are to be dressed onto management bars in to ensure that air flow through theunit is not restricted and access to SIU ‘s is not impaired. The procedure for dressingcables is accordance with details outlined in Section 7 of this document.

Cable management bars are to be fitted using M6 screws, black plastic cup washersand cage nuts. Insert cage nuts in desired positions in the rack front mounting rails.

Note: The upper cable management bar is to be fitted protruding IN towards the rearof the rack. The lower bar is to be fitted protruding OUT towards the front ofthe rack.

1.1.9.2 Compact SubrackA single management bar will be required in compact subrack installations (e.g. OMS1654) as shown below.

Figure 1-15: Cable Management Bar (Compact subrack)

CableManagementBars

CableManagementBar



Cables are to be dressed onto the management bar to ensure that air flow through theunit is not restricted and access to subrack SIU ‘s is not impaired.

The procedure for dressing cables is accordance with details outlined in Section 7 ofthis document.

The Cable management bar is to be fitted using M6 screws, black plastic cup washersand cage nuts. Insert cage nuts in desired positions in the rack front mounting rails.

Note: The cable management bar is to be fitted protruding IN towards the rear of therack.

1.1.10 Installing OMS 1664 SubrackThis section outlines the activities required to install the OMS 1664 subrack into anequipment rack.

CAUTION!

The subrack weighs approximately 10 kg when empty. Refer to Section 2 –‘Lifting and Handling’ of this document for details of handling procedure.WARNING:

The standard subrack weighs approximately 10 kg when empty. It is necessaryto obtain assistance from a colleague during installation activities.

1.1.10.1 Rack PreparationThe following activities ensure that the rack is prepared to accept the subrack.

Note: Refer to the information provided by Contract Engineering establish thelocation of the subrack within the cabinet.

The subrack is secured in to the rack via the front mounting brackets using M6 screwsand cage nuts.

� Fit 8 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mountingrails corresponding with the subrack fixing holes.

Shelf support brackets 1MBB 61103 AAM are provided to ease installation of thesubrack. The shelf support brackets provide a pivot point for the subrack duringinstallation.

� Fit 2 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mountingrails for shelf support brackets. These are fitted 1 SU below the subrackbottom fixing screw.

� Secure the shelf mounting brackets to the rack using M6 screws as shown.



Figure 1-16: Shelf Mounting Bracket

1.1.10.2 Installation ProcedureCAUTION!

Ensure cable assemblies and internal brackets will not impede subrackinsertion into the rack.

Prior to installing the subrack connectors are to be terminated to the unit DCpower cables Refer to Section 5 of this manual for method of fitting connectors.

The subrack is to be moved to a position adjacent to the rack using mechanicaltransportation devices suited to the working environment.

Note: It is preferable that the equipment remains in its packaging duringtransportation.

� Remove packaging and inspect the subrack for any signs of damage.

� Using the procedure outlined in section 2 of this document present thesubrack upto the support brackets attached to the rack front rails.

� Pivot the subrack into place until the unit is vertical and the mountingbrackets are in contact with the rack front rails.

Figure 1-17: Mounting Bracketsa

Subrack Mtg.Bracket

Shelf Support Bkt.

1MBB 61103 AAMFixing Screw 1MAB 20025 AAH



Stabilise the subrack and secure to the rack framework using 8 off M6 x 16 mm longscrews (1MAB 20025 AAH) and black plastic cup washers (1MAB 20027 AAM) in thepositions fitted with cage nuts.

The stability of the subrack must be maintained at all times, until all the fixingscrews are fitted.

� Remove the shelf support mounting brackets from the rack once the subrackis secure for reuse.

Note: Ensure that the black plastic covers, are fitted to the bracket mounting studs,once the subrack installation is completed.

� Remove all packing materials from the area and dispose of in accordancewith procedure agreed with the customer.

Note: A supplementary earthing strap must be connected to the stud provided on thesubrack chassis prior to application of DC power. Refer to Section 5 of thisdocument for subrack earthing requirements.

1.1.11 Installing OMS 1654 SubrackThis section outlines the activities required to install the OMS 1654 subrack into anequipment rack.

Figure 1-18: OMS1654 Subrack

CAUTION!

The compact subrack weighs approximately 5 kg when empty. Whilst a singleoperator may be capable of lifting the unit into place it is advisable to obtainassistance from a colleague during installation activities.

Note: Prior to installing the subrack connectors are to be terminated to the unit DCpower cables.



1.1.11.1 Rack PreparationThe following activities ensure that the rack is prepared to accept the subrack.

The subrack is secured in to the rack via the front mounting brackets using M6 screwsand cage nuts.

� Fit 6 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mountingrails corresponding with the subrack fixing holes.

Shelf support brackets 1MBB 61103 AAM are provided to ease installation of thesubrack. The shelf support brackets provide a pivot point for the subrack duringinstallation.

� Fit 2 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mountingrails for shelf support brackets. These are fitted 1 SU below the subrackbottom fixing screw.

� Secure the shelf mounting brackets to the rack using M6 screws as shownpreviously.

1.1.11.2 Installation ProcedureEnsure cable assemblies and internal brackets will not impede subrack insertion intothe rack.

The subrack is to be moved to a position adjacent to the rack using mechanicaltransportation devices suited to the working environment.

Note: It is preferable that the equipment remains in its packaging duringtransportation.

� Remove packaging and inspect the subrack for any signs of damage.

� Carefully lift the subrack and present it upto the required location in the rack.Rest the chassis on the attached support brackets.

� Pivot the subrack into place until the unit is vertical and the mountingbrackets are in contact with the rack front rails.

� Whilst stabilising the unit request the assistance of a colleague to secure it tothe rack framework using 6 off M6 x 16 mm long screws (1MAB 20025 AAH)and black plastic cup washers (1MAB 20027 AAM).

CAUTION!

The stability of the subrack must be maintained at all times, until all the fixing screwsare fitted.

Remove the shelf support mounting brackets from the rack once the subrack is securefor reuse.

Note: Ensure that the black plastic covers, are fitted to the bracket mounting studs,once the subrack installation is completed.



� Remove all packing materials from the area and dispose of in accordancewith procedure agreed with the customer.

Note: A supplementary earthing strap must be connected to the stud provided on thesubrack chassis prior to application of DC power.

1.1.12 Fan Tray InstallationBoth the standard and compact subracks are provided with a removable fan tray. Thetray is located in the lower section of the chassis.

Slide the fan tray into place and secure to the chassis using the 4 off captive screwsprovided.

Figure 1-19: Fan Tray Installation

The fan tray requires a protected independent DC power supply. A three pin D-typepower connector is located on the front of the unit. A D-type alarm cable inputconnector is also provided on the front of the unit.

Note: Refer to the power and earthing and alarm cable requirements in thisdocument.

� Attach a supplementary earth strap to the stud on the front face of the fanunit prior to connecting a DC power supply.

Alarm Port

PowerConnector

Earth Stud

Fan Filter



The fan tray is provided with a replaceable fan filter element. If this is not already fittedslide this into place in the slot at the bottom of the unit.

1.1.13 Slide in Unit Insertion/RemovalThe following outlines the activities associated with SIU installation into the subrack.

1.1.14 Slide in Unit HandlingSlide in units contain electrostatic sensitive devices. It is imperative that ESPprecautions are strictly adhered to during installation activities.

SIU packaging is clearly identified with static hazard warning labels. Cards shouldremain in their protective conductive packages/bags pending rack allocation.

Note: Prior to installing SIU’s into the subrack it is a mandatory requirement to carryout the following inspection:

� Ensure that damage has not occurred to the electrical and optical connectorson the subrack backplane.

� Check that the card guides in the subrack are clear and not damaged.

� Check SIU’s for any signs of damage, especially the front edge connections.

� Refer to the site specific documentation to establish the correct location ofSIU’s within the subrack.

Note: Units are provided typically in see-through anti-static bags. Wherever possiblechecking and inspection of a unit should occur without removing it from thebag.

Note: If a unit is to be removed from its protective bag, for inspection or insertion intothe rack, the following precautions must be adhered to:

Fix an ESP grounding wrist strap and cord to the ESD stud on the rack.

Handle unit by its face plate or card ejectors.

Securing Screws



Note: The ESP wrist strap must have a 2 M Ohm resistor fitted at either end. Allstraps and cords MUST be tested prior to use. Wrist straps should be worn indirect contact with bare skin and not over clothing.

Note: If a fault or damage is found on a SIU, then it is the engineers responsibility toarrange for a replacement to be dispatched and the faulty unit to be returnedto the factory.

1.1.15 Installation ProcedureSubrack SIU installation process is as follows:

� Refer to the site documentation to obtain the correct card location within thesubrack.

� Hold the SIU by the card ejectors and align with the guides in the subrack.

� Slide the unit into the subrack ensuring the two ejectors are in the horizontal(open) position.

Figure 1-20: SIU

� Push the unit home by pressing the two card ejectors inwards towards thecentre of the unit.

� Ensure that the unit is correctly located by operating the card ejectors.



Repeat the above procedure for all slide in units which are to be installed in thesubrack.

Note: Blanking covers must be fitted to empty card slots to maintain ideal EMC andESP conditions.

CAUTION!

Do not attempt to temporarily park SIU ‘s in the subrack as incorrect placementor forced insertion of the unit could cause damage to the backplane.

1.1.16 SIU Extraction/InsertionRemoval and re-insertion of units during upgrade or maintenance activities can besummarised as follows:

Note: Consult with a customer representative to ensure that the SIU is not in serviceprior to removal.

� Disconnect coax or fibre connections to the card taking care not to disturbadjacent terminations.

Note: Use appropriate connector removal tools where necessary. Great care mustbe taken to ensure that cables are not pulled during disconnection.

� Carefully operate card ejector devices to disconnect the unit from thesubrack backplane.

� Hold the unit by the ejectors and withdraw it from the subrack.

� Place the unit in a static protective bag.

� Remove the replacement unit from packaging.

� Insert the unit into the empty sot in the subrack.

CAUTION!

Great care must be taken not to damage the EMC fingers on the unit to beinstalled or any adjacent units in the subrack.



� Slide the unit along the runners until the face panel makes contact with theEMC fingers and face panels of the adjacent units.

� Push the unit home by pressing the two card ejectors inwards towards thecentre of the unit.

� Ensure that the unit is correctly located by operating the card ejectors.



1.2 DC Power And EarthingNote: All work is carried out in accordance with local requirements e.g. Electrical

Installations BS 7671:1992; the National Electric Code, ANSI/NFPA 70; theCanadian Electrical Code, Part1, C22.1.

Note: Prior to the start of ANY activity (Installation or Commissioning) on an In-Service exchange, or on ANY equipment within a live/ in-service environment,the Engineer must contact the overall installation authority.

Note: Ensure a Safety Protective Earth conductor is secured from each subrackSafety Protective Earth terminal to the nearest rack Safety Protective EarthTerminal.

1.2.1 GeneralThe OMS1664 subrack has two power supply unit cards.

A sketch of the DC power infrastructure for the OMS1664 is shown in Figure 1-21. Therequirements below are based on a OMS1664 with a typical power consumption of963W.

� Design Current: The load for the OMS1664 is taken as 963W which gives aload current of 20A at 48V.

� Cable Protection: The protection of cables C, D, E and F shown in Figure1-21 is provided by a 40A BS88 fuse or 40A Type B MCB at the E.O.S.distribution board. This device must only be used in an ambient temperatureequal to or less than 35°C. A 25A Type B MCB must be used to protect thecables within assemblies J and K. This MCB must only be used in anambient temperature (at the rack-top) of no more than 45°C.

� Cable Size: The size of cables C, D, E and F shown must be 16mm² toaccommodate the load current of 25A, grouping factor for 4 circuits andambient temperature of 45°C. Cables C, D, E and F are serving onesubrack. It is dual fed with 2 x –50v and 2 x +50v.

The size of cables within the assemblies J and K must be 4mm² with 85°C insulationand must be screened for EMC purposes. This is to accommodate the full load currentand an ambient temperature of 45°C.

� Volt-drop & Maximum Route Length: The volt-drop from the power plantto the equipment must be no more than 2V. Therefore assuming no morethan a 1V drop from the power plant to the Distribution Board (DB). thelength of cables C, D, E and F must be no longer 10m. The length of cableswithin the cable assemblies J & K must be no longer than 2m.

� Earthing Conductors: The earth cable marked G in Figure 1-21 must be16mm². The bonding conductor marked L in Figure 1-21 must be 16mm².The protective earth conductor marked M in Figure 1-21 must be 6mm².



Figure 1-21: Sketch of the OMS1664 Infrastructure

Safety ProtectEarth conduct

A list of the components used above and their part numbers are shown below.

Table 1-2: Marconi Part NumbersPart Description Marconi Code

A&B Fuse 40A BS88 SITE SPECIFIC

C&D Cable 16mm² Blue PVC 1WAA 10014 AAG

E&F Cable 16mm² Black PVC 1WAA 10014 ADJ

G Cable 16mm² Green/Yellow 1WAA 10014 ACR

H&I MCB 25A Type B 1CFB 20030 ABA

J&K Cable Assembly 4mm² 2-Core Blue & Black EMC Braided 1HAU 62488 ***

L Cable 16mm² Green/Yellow 1WAA 10014 ACR

M Cable 6mm² Green/Yellow 1WAA 10015 ACT

Summary

� Infrastructure based on a maximum load of 20A at 48V.

� Infrastructure based on an ambient temperature of 35°C at D.B. and 45°C atrack-top.

� Cable protection, 40A BS88 protects the 16mm² cables and 25A Type BMCB protects the 4mm² cables.

� Cables C, D, E and F from D.B. to rack-top must be 16mm² and may begrouped with up to three identical circuits.



� Cables within assemblies J and K must be 4mm² and EMC Braided.

� Cable installation for the 16mm² is BS7671 Method 11 (Installed onperforated cable tray).

� Cable installation for the assemblies J and K is BS7671 Method 12 (Installedin free air).

� Maximum length allowed for cables C, D, E and F is 10m.

� Maximum length allowed for cables within assemblies J and K is 2m.

� Volt-drop based on 1v from the D.B. to the PLTU.

� The earth cable from the rack earth terminal to the distribution earth barmust be 16mm².

� The bonding conductor from the rack-top earth bar to the rack must be16mm².

� The sub-rack to cabinet bonding conductor must be 4mm².

Table 1-3: OMS1664 Full Shelf Typical Power Consumption

Item Power Consumption(typical), Watts

Number in Shelf TOTAL Power Consumption ,Watts (typical)

Fast E (16 port) 30W , LTU15W

45 16 720

CCU 16 2 32

FAN TRAY 100 1 100

Switch (128 x 128) 30 2 14

Management/Sync LTU 13 1 13

Power LTU 6 2 12

Alarms & Aux LTU 6 1 6

Aux Card 20 1 20

TOTAL 963W (typical)

1252W worst case (30% added)

1.2.2 Install DC CablesNote: All cables should be fully proven using a continuity tester before any

connections are made to validate both source and destination address of eachcable.

Isolate the power feeds into the top of the fuse or breakers to be terminated. Thiscould mean the removal of end of suite fuses or placing a main switch in the ‘OFF’position.

Note: Having isolated fuses or switches ready to work on the equipment, ensure alabel is attached to the empty fuse carrier or switch to ensure the supply is notrestored while work is still being carried out.



1.2.2.1 EF 80/Power Distribution cabinet/Racks ( -ve Suite Distribution )The -ve DC supply cables (16mm2 blue ) to the first equipped rack in the suite willoccupy the next available fuse positions on the EF 80/Power Distribution cabinetunless instructed otherwise. This is to be fused at 32Amps.

Two 16mm2 blue cables are to be provided from the EF 80/Power Distribution cabinetfor each 16-64 rack/cabinet.,

Starting at the first fuse position, secure appropriate identification label to the end ofthe cable. Route the cable along the central power tray to the required destination.

Take slack back to the EF 80/Power Distribution cabinet ensuring that there issufficient slack for bends, and that there are no kinks in the cable.

At EF 80/Power Distribution cabinet, take the cables down to the required fuseposition and measure enough length for terminating. Cut cable.

Secure cables with temporary ties to prevent slippage.

Repeat the above until all the racks within the suite have been cabled.

1.2.2.2 Main Earth Bar to RacksEach equipped rack +ve ( 0 volts ) supply is supplied by two 16mm2 cable.

Run the cable in the central power tray from the Main Earth Bar to each equippedrack.

Take slack back to the Main Earth Bar ensuring that there is sufficient slack for bends,and that there are no kinks in the cable.

Measure cable ensuring enough length for terminating. Cut cable.

Secure cables with temporary ties to prevent slippage.

Repeat the above until all the racks/cabinets within the suite have been cabled.

Note: If the installation is on a raised floor the cables are obviously cabled from thebottom. Using the same method as above run the cables under the floor on adesignated runway and up the inside of each rack to reach the powerdistribution rails.



1.2.2.3 Form and Terminate Cables at the Rack Top Fuse Rail.The type of fuse rail will be dependent on customer requirements. The followingidentifies a selection that could be used on this product.

The rack top fuse rail are to be mounted in rack/cabinet positions as identified on thecontract engineering drawing.

All 16-64 subracks are to be dual fed.

Form the supply cables through the side of the power tray at the rack position,ensuring enough cable is fed through for termination onto the rack top fuse rail.

Secure the cables to the rack support bracket.

Run the cables through the cable holes at the top of the cabinet (overhead cabling)and across to the circuit breakers.

DC supplies to the Cabinet/Rack are terminated using 'CEMBRE' pins on to the16mm2 cables. Use pin code 1CXB21141 ABJ for the -48v cables and 1CXB21141AAC for the 0v cables.

Strip approx 12mm of insulation from the cable end using the Kabifix stripping tool 1PAC10349AAF.

Note: Ensure the correct cutting depth is set on the tool. Check on a piece of scrapcable.

Inspect the cables to ensure there are no nicks or cuts in the copper conductors.

Position the correct coded CEMBRE pin onto the stripped end of the cable. Ensurethat the wire enters fully into the hole and crimp the pin to the cable using theapproved crimping tool. (CEMBRE HNN4).

Loosen off the grub screws in the relevant terminal blocks and the cable connector onthe circuit breakers.

Connect the -ve cables ( blue ) to the cable connector which sits on top of the circuitbreakers and bus bars as shown on the 1HEE ***** ( rack layout drawing ).

Repeat the above for the two +ve cables ( black ) Terminating on the designatedthrough terminals.

Figure 1-22 shows the typical supply termination of the circuit breakers.

Gently pull on each terminated cable to ensure the grub screw has made full contactwith the pin and the cable is secure.

The banks of circuit breakers should already be connected together with copper busbars.

The 0V terminal blocks should be linked together with jumper bars. Refer to. Figure1-22.

The Distribution panel is fitted with an earth lead which must be connected to the rackframework.



Figure 1-22: Typical termination of the Rack Top Fuse Rail

2 Core EMCBraided Cables



1.2.3 Preparation of ETSI Fuse RailNote: To ensure a sound connection to the 0 Volt rail any sign of VERDIGRIS (green

film on copper) should be cleaned off using wire wool.

Figure 1-23: ETSI DC Power Rail (Typical Only)

At the top of the rack, secure the cable to the debris tray with plastic ties. Ensuresufficient length is left on the cable for terminating the earth wire to the rackframework.

Note: Breakout is 400mm for all seven wires.

Remove the inner/outer sheathing from the cable.

Cut back the braiding to 25mm. Open out the braiding and select approx. 20 wirestrands and twist together. Cut off the remaining wires from the braiding level with thecable sheathing.

Remove approx. 12mm of insulation from the 2.5mm cream cable and solder to thetwisted braiding ensuring a good connection is made. Fit heatshrink over the joint.

Note: Prior to terminating any cables carry out a continuity check to ensure correctpolarity.

Dress wires 1,3,5 (0 Volt) to the 0 Volt termination rail, fit spade connectors 1CXB21161 AAW, using crimp tool BMR6U3 (1PAC 10336 AMA) to each wire andterminate on the rail. See Figure 1-24.

Figure 1-24: 0 Volt Earth Rail

Wire Number5 3 1



1.2.3.1 DC Rail 332-0293/05.01Fit rack top DC rail 332-0293/05.01 to the top most position in the rack. Fix using fourM5 screws provided. Ensure supplementary earth bonding conductor 6mm2 grn yel,336-1674/02.01 is fitted from DC rail to rack earth bonding point. M6 ring terminal isprovided to fit to rack 92 top earth stud.

Fit MCBs, earth terminal blocks and supplementary earth blocks (grn/yel) to DIN rail.Ensure they are equally spaced about the rack centre line. See Figure 1-22.

Fit jumper bars to earth terminal blocks and screw in position.

Link earth terminal blocks to supplementary blocks using 6mm2 grn/yel cableprovided.

Fit end stops to secure components to the rail. See table below for additional codes.

Fit common rail and connectors to MCBs. This will allow the application of largercables.

Table 1-4: DC Rail Part CodesDescription Common Code

Wire insulated 6mm2 link wire for 0volt terminal to Grn/yel 55210-44/235

Connector for use with common rail on MCB 6100331-0028

Commoning rail for MCB 6100394-0063

End stop 67372-27/012

0 volt terminal block jumper bar 67372-51/112

Terminal block 0 volt 67372-51/113

MCB 16A type B 1CFB 20019 AER

M6 ring terminal 6mm 1CXB 21237 AAV

Supplementary earth block (grn/yel) 67372-51/114

Screw M5 1MAB 20025 AAH

Cage nut 1MAB 20026 AAK

1.2.3.2 Factory Assembled Power Looms fitted with 3 Way ‘D’ TypeConnectors (1HAU 62488 AAL) OMS1664The cable consists of 3 individual 4.0mm insulated wires, blue (-ve), black (+ve) andGn/Y (Eth).

The power supply cables from the subrack to the DC distribution rail are factoryassembled and ready for fitting. The ‘D type end is connected to the upper part of thesubrack in slots 19 (pwr A) and 20 (pwr B). The free end is connected to theappropriate circuit breaker and earth connection strip on the DC distribution rail.



Figure 1-25: Factory Assembled Power Looms

The OMS1664 1HAU62488AAL power cable has a length of 2100mm.

1.2.3.3 Factory Assembled Power Looms fitted with 3 Way ‘D’ TypeConnectors (1HAU 62489 AAN) OMS1634The cable consists of 3 individual 4.0mm insulated wires, blue (-ve), black (+ve) andGn/Y (Eth).

The power supply cables from the subrack to the DC distribution rail are factoryassembled and ready for fitting. The ‘D type end is connected to the upper part of thesubrack in slots 19 (pwr A) and 20 (pwr B). The free end is connected to theappropriate circuit breaker and earth connection strip on the DC distribution rail.

Figure 1-26: Factory Assembled Power Looms

The OMS1634 1HAU62489AAN power cable has a length of 1100mm.

1.2.4 Preparing Sub-Rack Power Leads to DC RailAt the side of the rack, secure the cable to the rack framework with plastic ties.

Dress blue (-48Volt) cables to the bottom of the relevant circuit breakers. Removeapprox. 7mm of insulation from each wire and terminate, fully tightening the screws.

Gently pull on the terminated wire to ensure terminal clamp has made full contact withthe wire and the cable is secure.

Dress the black cables (0 Volt) to the bottom of the relevant earth terminal blocks.Remove approx. 7mm of insulation from each wire and terminate, fully tightening thescrews.

Connect cream EMC earth cable to supplementary grn/yel block.



Figure 1-27: Power LTUs DC cables

1.2.5 Earthing

1.2.5.1 Rack Earth BondingRun a length of 16mm2 G/Y cable from the customer’s main earth bar to the rack viathe central power tray. Strip approx. 10mm of insulation from the cable and crimp an“Elpress” M6x16 ring lug to both ends using the appropriate “Elpress” crimping toolingand die. Fasten the cable to the terminating stud on the customer’s main earth barusing the washer and nut supplied. Fully tighten the fixings.

Route the cable to the rack Earth stud (4 are provided 2 x top and 2 x bottom of rack)and fasten to the stud using the fixings already in place. Refer to Figure 1-28 below.

Note: The earth cables supplied are flexible cables and the correct lug and crimp toolshould be used. Ensure the lug has the suffix ‘F’ marked on it i.e. 16mm x 6f.The BMR 16U3 or the Elpress T2600 crimp tool fitted with dies marked withthe number 9.

Figure 1-28: Rack Protective Earth Terminal

1.2.5.2 Subrack Safety Protective EarthUsing the KOP supplied by contract engineering run the 6.0mm² G/Y cable from thesubrack safety protective earth terminal marked:

DC Power Cables toPower LTUs

16mm Cable from the Main Earth Bar. Thelocation of the rack Safety Protective EarthTerminal will be dependent on Rack



on the front right hand side of the subrack to the nearest rack Safety Protective EarthTerminal positioned on the top or bottom of the rack marked:

Connect one end of the Safety Protective Earth conductor to the connection point onthe subrack (no leg required). Crimp an “Elpress” M6x6mm lug to the free end andsecure using existing fixings at the top or bottom of the rack. See Figure 1-29 below.

Ensure black plastic cover is replaced on earth stud after termination of earth bondinglead.

Figure 1-29: Subrack Safety Protective Earth Terminal

1.2.6 Subrack Fan TrayThe fan tray is a common unit for the standard and compact subracks and is amandatory requirement. The fan tray is fitted into the bottom of the subrack andsecured in place by four pozi screws

Subrack Safety Protective Earth. EnsureBlack Cap is fitted after connection, 6mmcable must be fitted



Figure 1-30: Fan Tray

The fan tray is designed such that in the event of a single fan failure the remainingfans are driven at full speed to help compensate for the fan failure. This applies in allfan tray operation modes and under this condition, the fan tray generates a majoralarm condition both visually, front panel LED and via the 9 way connector.

1.2.6.1 Fan Tray EarthingThe fan tray has a Safety Protective Earth Terminal Marked on the left hand side ofthe unit. Connect a 6 mm Safety Protective Earth Conductor to the rack safetyprotective earth terminal marked :

The safety protective earth cable must be connected prior to connecting any power tothe unit. See Figure 1-31 below.

Figure 1-31: Fan Tray Earthing

1.2.6.2 Filter CleaningAn air filter is housed inside the fan tray and can be pulled out without removing thefan unit for cleaning or replacement

The life time of the filters is dependent on the specific environmental conditions theequipment is installed into and the distance from floor level i.e. the position of thesubrack in the rack.

There is a filter block alarm which will be raised when the filter becomes blocked ordirty and the filter must be replaced/cleaned as soon as possible to ensure maximumairflow to the subrack.



The front panel LED will flash amber when this occurs.

Figure 1-32: Filter Cleaning

A fan tray is required directly below each 16-64 subrack.

1.2.6.3 Replacing the Fan Tray

1 Remove the fuse/switch off the Cct breaker at the fuse rail

2 Disconnect the DC power cable from the fan unit

3 Disconnect the safety protective earth conductor

4 Disconnect the alarm cable

5 Unscrew the four retaining screws on the fan unit. (A phillips screwdriver isrequired).

6 Slide out the fan unit

7 Slide in the new fan unit and secure using the four phillips screws previouslyremoved.

8 Connect the safety protective earth conductor.

9 Connect the alarm cable. (Secure using the two retaining screws).

10 Connect the DC power cable. (Secure using the two retaining screws).

11 Refit the fuse/Switch on the Cct breaker.

1.2.7 Fan Tray Power SupplyThe fan tray is powered from a single –48V DC supply, which is capable of poweringthe entire fan tray.

Fan Tray Filter.



1.2.7.1 Power Connector Pinout1 Negative Supply A (-48V Nom)

2 Common

3 Negative Supply B (-48V Nom)

1.2.8 Cable RoutingFeed fan cable assembly up the right hand side of the cabinet to rack top fuse andearth rails. Connect –50v wire to auxiliary fuse and 0v wire to the rack top earth rail.Ensure cables are routed to avoid catching on brackets.

The fan tray power and alarm cables should be installed in such a manner to avoidstress on the cables and connectors when closing the rack door.

Figure 1-33: Cable Routing

1.2.9 Fan FusingThe rack top Cct breaker is to be rated at 6A, with a 20A fuse at end of suite. Feed a16mm2 cable from end of suite to auxiliary fuse.

DC Power Cable

Note: Fan Unit musthave the SafetyProtective Earthconductor connectedprior to powering up



1.3 Cabling and Terminating CopperNote: Prior to the start of ANY activity (Installation or Commissioning) on an In-

Service exchange, or on ANY equipment within a live/ in-service environment,the Engineer must contact the relevant overall installation authority

Cable routes will have been planned at the engineering stage of the contract.Consultation with the Customers Representative for a variation in the routing of thecables to suit site conditions may be agreed, so long as the length of the cable rundoes not exceed the length of the cables engineered for that site. All drawings must bered lined to identify new routes and sent to Contract Engineering who must agree toany proposed changes in cable routes.

The routing of the cables from the OMS1664 to frame will be dependent on rackdesign, equipment configuration, OHI and frame, however, the following cabling rulesalways apply:

� Cabling on transmission cable trays should be kept as flat as possible. Sharpbends of cables across trays should be avoided and no slack should be leftin any cabling within the rack area.

� Cabling from the equipment racks to Digital Distribution Frames (DDF)should be routed via the longitudinal suite transmission tray and appropriatetransverse cable tray leading to the vertical of the DDF on which the cableterminates (i.e. same side cabling).

� Cabling should only be tied when leaving a transverse tray and dropping to alongitudinal tray (or frame), or to the central conduit bearer when entering arack.

� At the top of a vertical cable run, bends in the cable form should besufficiently large enough to ensure that the weight of the cables is supportedby the ties throughout the vertical run and not by the horizontal section.

� Cables should be routed in a manner to ensure a minimum separation of200mm is maintained at all times between signal and AC cables. It ispermissible to allow such cables to cross at 90° to each other.

� Cabling should enter ETSI rack from the longitudinal suite transmission trayson the opposite side of the suite centre line via the central conduit cablebearer (i.e. opposite side cabling).

� Cables should be secured to the support brackets in the cable void/duct withplastic cable ties.

� Cables of less than 20 pair should be mixed in bundles not exceeding 50mmin diameter.

� Sharp bends must be avoided at all times.

� Always make provision for future growth and expansion. Allowances in cableforms should be made for the removal of existing equipment formaintenance, etc.



� Installers are advised that where Marconi have to pass cables through anycable hole that has not been previously fire stopped and does not have aninstruction label adjacent to the hole they MUST contact the customersCable Hole Management Team if applicable

� Additionally where cables are to be passed through previously fire stoppedcable holes; installers MUST follow the Mandatory Instruction Label adjacentto the hole.

� Terminations should not be stressed.

Note: Installers are advised that where cables pass through cable holes that havenot been previously fire stopped they MUST contact the customers Cable HoleManagement Team if applicable. Where cables are to be passed throughpreviously fire stopped cable holes; installers MUST follow the MandatoryInstruction Label adjacent to the hole.

1.3.1.1 Cable Identification and LabellingCables will be identified by 'buzzing out' and reference to the site cabling diagram. Ascables are identified a cable label will be fitted.

Cables pre-terminated to a patch panel will have identifying labels fitted. Refer to thesite cabling diagram.

The cable label will have information to identify the terminating position on theequipment to which that cable end is to be connected.

The label should be securely wrapped around the cable ensuring that the informationwritten on the label is clearly visible.

1.3.2 Cabling to OMS1664Cabling to the OMS1664 subrack is summarised as follows.

1.3.3 Cabling to OMS1664 LTU Interface AreaThe 2Mbit/s LTU interface area of the OMS1664 utilizes

� 75 Ohm unbalanced (3002 coaxial cable) fitted with 1.0/2.3 male straightlong push pull connector 1CXB 21213AHD or

� 120 Ohm balanced (twisted pair) fitted with a ‘D’ Type connector, see Figure1-34.



Figure 1-34: LTU Area. 32 Ports Per Card

Note: Interface area will be either 120 Ohm or 75 Ohm. Above picture shown only toidentify both types of interface available

A fully cabled 2Mbit/s LTU interface area accommodates up to 1008 coaxial cables(504 ports) or 64 x 37 way ‘D’ type connectors (504 ports).

Note: The 2Mbit/s LTU interface area of the OMS1664 sub-rack, when fullypopulated, will hold up to 4 tribs (max per shelf).. Four LTUs equate to one tribEach LTU has 32 ports. On even numbered 2Mbit/s LTUs there is arequirement of one (1) free port to be left which can be used for monitoringpurposes.

For allocation of external cables to the LTU interface area refer to the informationsupplied by the overall installation authority. Cables must be run in accordance withthe General Cabling Rules. It is imperative that these rules are adhered to at all times.

The forming and terminating of cables will be accordance with the exchange cablerunning out list (CROL).

Due to the heavy volume of cables in a restricted area it is essential that carefulconsideration is paid to the approach and marshalling of cables at drop off areas tomaintain the best possible feed pattern down the rack.

During cabling it is advisable that crossovers/twists should be kept to a minimum downthe rack to prevent congestion, and thought must be given to keep ultimate cablespaces clear.

Starting at the first position to be cabled, attach cable labels, refer to 1.3.1.1, or markthe cables with a marker pen to identify the to/from routing of the cables and run thecables in manageable bundles (32 cables) to or from the first required position in therack.

Arrange cables on the cable trays to ensure a direct approach to the rack, taking aside sweep as necessary to leave space for the ultimate growth within the rack.

120 Ohm Interfacearea `D’ TypeConnectors

75 Ohm Interface Area1.0/2.3 Connectors



Temporarily tie cables back at bends or employ cabling aids to maintain directapproach and to allow cables to be disciplined in formation. Bring down cables inmanageable quantities; marshal them into formation on the roll bar.

Note: Bundles of cables must be secured in formation on the roll bar with plasticcable ties.

Where cables are fed from the base of the rack the procedure is the reverse of theabove. Requirements for future cabling should again be taken into consideration.Cables will require to be supported at regular intervals within the cable void.

To avoid congestion within the racks cabling void, the LTU interface area must becabled from both sides.

Note: Cable management bars are required to manage the cables. Refer to ContractEngineering Face Layout information for correct placement of cablemanagement bars in rack.

1.3.3.1 External Cabling 75 Ohm LTU Interface Area (Coaxial Cable)

Figure 1-35: Typical Cabling Layout in a 900 x 3000mm Rack

Cables to the subrack should be fed, as per normal transmission practice, from theoverhead baskets situated at the rear of the suite, cabling over the centre roll bar intothe top of the cable ducts right or left.

Note: The cables to LTU positions 1 to 8 should be formed in the left-hand cableduct. Cables to LTU positions 9 to 16 should be formed from the right-handcable duct.

Note: The subrack should be cabled LTUs 1 to 4 (trib 1) firstly and working inwardsto the middle of the shelf.

2Mbit/s CoaxialCable to LTU/TribArea Routed ViaCable Duct andSecured to CableManagement BarsAbove Subrack

STM-1 ElectricalCables Secured toCable Fingers onCable Raceway

LH Cable Duct Side ViewRH Cable Duct Side View



Feed the cables for LTUs 1 to 4 inclusive to the outside of the ducts brackets, cablesfor LTUs 5 and 8 to be fed to the inside of the previous 4 LTU cables, see Figure 1-36

All cables to the subrack should be formed in the cable duct, dressed across the cablemanagement bar and secured using plastic ties.

Run the cables in bundles of 32 to each half of the LTU through the cable duct and fittemporary ties to support the cable bundles wherever possible.

Bring cables from the side of the rack to secure to the front of the CMB mountedabove the subrack interface area to drop vertically over the LTU.

Drop the cables down the front of the CMB to the top half of the LTU interface cardand secure temporarily to the bar, see Figure 1-36.

Note: Check the cables are long enough to reach their terminating position on theLTU interface card. Do not terminate the cables at the LTU interface card atthis stage.

Figure 1-36: Cables formed to front of LTU 1 to 6



Figure 1-37: Running Stitch

When the bundle of 32 cables have been installed to the front of the LTU, terminationof the cables at the LTU interface card can commence.

Note: Extreme care must be taken when routing cables to the front of the LTUinterface area. Cabling should not encroach on adjacent LTU interface cards; theremust be sufficient room to remove, for maintenance purposes, the LTUs & AIUsbehind the cable forms.

To achieve maximum cable management efficiency apply a running stitch to the cableform. see Figure 1-38

Avoid any crossover of cables and allow a space between each row of 64 cables(1 LTU interface card), for easy insertion of connector extraction tool.

Starting with cables to the top half of the LTU, terminate each cable to its designatedport. When terminating is complete, apply running stitch up to the cable managementbar and secure with cable tie.

Note: Ensure that there is no pressure exerted on the connections therefore thecables must allow for some movement.

Remove temporary cable tie from the CMB holding cable bundle Terminate eachcable to designated port. When the termination is complete apply running stitch up toCMB and secure using a cable tie.

Figure 1-38: Cable Forming Diagrams



Dress the two bundles back to the front of the upper CMB, ensuring that there is nofurther pressure exerted on the connections therefore the cables must allow for somemovement.

The cables should sweep up to the CMB and outwards to the cable duct, beforeexiting, ensuring they are not stressed and moving any excess cable back throughducting to source (overhead ironwork /basket).

Note: Ensuring the minimum bend radius is maintained at all times on all cables andthe weight of the bundle is equally shared.

Note: Ensure that the cable forms do not impede the air flow/circulation of theventilation area at the top of the sub-rack.

The cables to the subsequent LTU interfaces should follow the same route andmethod, being secured in the duct to the side of the first 64 cables.



Figure 1-39: Securing Form to CMB with Cable Tie

Figure 1-40: Tribs 1-4 Cabled with ST 212 Coaxial Cable

Running stitch

Form secured to CMBwith cable tie





1.3.3.2 External Cabling 120 Ohm LTU I/F Area (‘D’ Type Twisted Pair)Cables must be run in accordance with the General Cabling Rules.

It is imperative that these rules are adhered to at all times.

The forming and terminating of cables will be accordance the exchange CableRunning Out List (CROL).

A fully cabled 2Mbit/s LTU interface area accommodates 64 x 37 way ‘D’ typeconnectors (504 ports).

Note: The 2Mbit/s LTU interface area of the OMS1664 sub-rack, when fullypopulated, will hold up to 4 tribs (max per shelf).. Four LTUs equate to one tribEach LTU has 32 ports. On even numbered 2Mbit/s LTUs there is arequirement of one (1) free port to be left which can be used for monitoringpurposes.

Tribs 508 shown.Cables secured onboth managementbars

Tribs 1-4 pass behind uppermanagement bar and brought to thefront of the lower bar and secured.See Figure 1-40 for pictorial view ofTribs 1-4



For allocation of external cables to the LTU interface area refer to ContractEngineering information supplied.

During cabling it is advisable that crossovers/twists should be kept to a minimum downthe rack to prevent congestion, and thought must be given to keep ultimate cablespaces clear.

Starting at the first position to be cabled, attach cable labels, refer to 1.3.1.1 or markthe cables with a marker pen to identify the to/from routing of the cables and run thecables in manageable bundles (32 cables) to or from the first required position in therack.

Arrange cables on the cable trays to ensure a direct approach to the rack, taking aside sweep as necessary to leave space for the ultimate growth within the rack.Temporarily tie cables back at bends or employ cabling aids to maintain directapproach and to allow cables to be disciplined in formation.

Bring down cables in manageable quantities; marshal them into formation on the rollbar.

Note: The cables to LTU positions 1 to 8 should be formed in the left-hand cablechannel. Cables to LTU positions 9 to 16 should be formed from the right-handcable channel.

Note: The subrack should be cabled LTUs 1 to 4 (trib 1) firstly and working inwardsto the middle of the shelf.

All cables to the subrack should be formed in the cable channel, dressed across thecable management bar and secured using plastic ties.

Run the cables to each half of the LTU through the cable channel and fit temporaryties to support the cable bundles wherever possible.

Bring cables from the side of the rack to secure to the front of the CMB mountedabove the subrack interface area to drop vertically over the LTU.

Plug up each cable as it is installed and secure using the retaining screws on theconnector. Dress any excess slack away from the subrack into the cable channel.Refer to Figure 1-43 to Figure 1-45.

Note: Extreme care must be taken when routing cables to the front of the LTUinterface area. Cabling should not encroach on adjacent LTU interface cards;there must be sufficient room to remove, for maintenance purposes, the LTUs& AIUs behind the cable forms.



Figure 1-43: Plugging and Dressing of Cables (1)





1.3.4 Cabling to STM-1 High Band Trib AreaThe high band tribs would primarily be situated in the lower card cage area of a SMA ,but the subrack could be configured as a mini cross-connect with the requirement for256 STM-1 electrical/optical ports

(32xSTM-1 cards, 16top/16bottom cards) .

1.3.4.1 STM-1 Electrical CardThere are eight interfaces on each card; four groups of two, consisting of a Tx, Rxport.

Note: .Ensure that cable routes follow the 2M/bit(s) cables off the overhead cablebaskets.



Figure 1-46: STM 1E High Band Trib Cards

The preferred cable for the high band electrical tribs is BR 7000 fitted with right-anglesconnectors.

Route the cables down the cable ducts, separate if possible from the 2Mbit/s coax.Securing them to the Segregation Brackets.

Run the cables in card allocation sequence, across the fibre/cable channel

Form the cables in a group of six to drop vertically above their designated card, seeFigure 1-47.

Place a cable tie around the 8 cables and the front of the right-angled bracket, thisaction will allow for segregation/identification purposes and also to give the cable formthe lowest profile as possible at the front of the trib card.

The 8 coax with a 1.0/2.3 right-angle connector fitted to each should be dressed to thecorrect port on the card.

Marshall cables to the port terminations, alternating the pairs of cables to be dresseddown the cards from right then left.

Note: When removing a trib card for replacement/maintenance, due to the angle ofthe connector, care should be taken to limit knocking cables formed to theadjacent cards.



Figure 1-47: STM-1 Electrical Lower Shelf Cable Management

Note: Left hand side of shelf shown. Cable to the right hand side are a mirror image.

Figure 1-48: STM-1 Electrical Upper Shelf Cable Management

Note: When cable management bracket 1MBD60712AAS is supplied this must beused. The cables must follow the same forming and management as shown inFigure 1-47.

Cables secured inpositions shown

View from above



1.3.4.2 STM-1 Electrical and Optical MixIn some cases there may be a requirement to mix electrical and optical trib cards onthe same shelf. The electrical cables should be tied to the rear of the managementbracket allowing enough space for the optical cables to pass underneath without anypressure being put on them.

Figure 1-49: Cabling of an STM-1 Electrical and Optical Mix

Electrical cables tied off to rearof cable management bracketand the outside of the guides

Velcro must be usedat all times onoptical cable

Optical cablespass underneaththe electricalcable and passthrough theguides



1.3.5 Cabling to OMS1654Cabling of the OMS 1654 subrack is summarised as follows:

1.3.6 LTU Interface Area2 Mbit/s trib. card cabling connects to the LTU area on the right hand side of thesubrack.

The following connectors may be utilised:

� 75 Ohm unbalanced coaxial cable fitted with 1.0/2.3 male straight connector

� 120 Ohm balanced twisted pair cable fitted with a ‘D’ Type connector

Figure 1-50: LTU Area Interface

LTU Area



Note: When cabling to a 75 ohm LTU 3002 coax cable or equivalent is to be used.

A fully cabled 2 Mbit/s LTU interface area accommodates up to 256 coaxial cables(128 ports) or 16 x 37 way ‘D’ type connectors.

Figure 1-51: 75 ohm interface/ 120 ohm interface

Note: On even numbered 2 Mbit/s LTU's there is a requirement of one (1) free port tobe left which can be used for monitoring purposes.

Note: For allocation of external cables to the LTU interface area refer to ContractEngineering information supplied.

� Cables must be run in accordance with the General Cabling Rules It isimperative that these rules are adhered to at all times.

� The forming and terminating of cables will be accordance the exchangeCable Running Out List (CROL).

� If not already present secure a cable a management bar above the subrackusing M6 screws plastic cup washers and cage nuts.

Note: Cable management bar is to be secured with formed section installed towardsthe rear of the cabinet.

� Commence cabling on the left hand side of the LTU card area. Connectionsto the ports on the LTU must be made starting at the top of the card.

� Subsequent connections to the lower ports on the card are to be laid on topof those previously installed.



Figure 1-52: Permitted Cable Forms

� Form cables vertically up to the cable management bar and temporarilysecure the bundle using a nylon cable tie.

� On completion of card connections remove temporary cable ties.

� Dress cable bundles serving the first two LTU’s to the left hand rack cablespace. Dress cable bundles serving the remaining LTU’s to the right handrack cable space.

� Secure cables to the management bar with cable ties.

Note: It is essential that the cable bundle is formed to ensure that removal ofadjacent cards is not impeded.

Note: Ensure that a minimum bend radius is maintained on cable forms.

Note: Cable bundles must not protrude beyond the front face of the subrack chassis.



Figure 1-53: Cable Management Bar

Note: A 3 SU gap (75 MM) is required between adjacent subracks. This providesroom for cable management and allows free air-flow from the top of the unit.

Cable bundles from subracks mounted in the lower section of the rack are to beinstalled towards the rear of the cable space. Subsequent cable bundles are to beinstalled forwards of these.

1.3.7 Fan Tray Alarm CablingA 9-way, D -Type connector is located on the front face of the fan tray. This providesan alarm connection between the fan tray and the Management and Sync LTU.

Figure 1-54: Fan Tray Alarm Cabling

Cablemanagement bar

Fan tray alarmconnector

F



� Fit alarm cable 1HAU62481AAV to the connector on the fan tray.

� Route cable across to right hand side of rack and into the cable duct. Runthe cable neatly and secure using cable ties.

� Route the cable above the subrack along the cable management bar andsecure using nylon cable ties.

� Drop the cable vertically down to Management and Sync LTU and connect tothe Fan Management port on the card.

Note: Ensure that routing of cable does not impede removal of subrack traffic orpower LTU’s.

Figure 1-55: Alarm Cable Assembly

1.3.8 Removal of 1.0/2.3 ConnectorsTo remove a 1.0/2.3 connector from the LTU interface area and a right-angledconnector from the high band trib area, locate the end of extraction tool 1PAC10345BDV completely over the connector collar.

Hold the cable near the rear of the connector to stop it from moving and pull back onthe extraction tool to disengage the connector collar.



1.3.9 Power CableA power cable 1HAU62488AAL is to be connected between the rack fuserail and bothsubrack power LTU’s.

� Attach cable to the power LTU and secure using both retaining screwsprovided on the connector.

� Run the cable up the right hand side of the rack (as viewed from the front) tothe required MCB position on the fuserail. See section 5 of this document forcable termination method and subrack power requirements.

� Secure the cable in the cable duct using plastic cable ties.

CAUTION!

Ensure that the circuit breaker is de-energised to isolate the circuit from thepower supply prior to connecting to the subrack.

Figure 1-56: Lower and Upper LTU Areas



1.4 Cabling And Terminating – FibreNote: Prior to the start of ANY activity (Installation or Commissioning) on an In-

Service exchange, or on ANY equipment within a live/ in-service environment,the Engineer must contact the relevant overall installation authority.

1.4.1 General Cabling Rules – Fibre Optic CablesWARNING!

Disturbance of fibre cables on in service equipment/splice tray can cause lossof the traffic. Extreme care must be taken when installing additional fibres.

This section covers the management of fibres specifically to an OMS1664 subrackwithin a 900x300 front access rack.

1.4.2 Inspection And Cleaning Of Optical FibresIf the Engineer has any doubt about the correct procedure, they must contact theMarconi Methods & Standards Dept in Liverpool.Managing Optical Fibre Cables ToThe Rack

Note: All fibres should be coiled loosely. Tight turns, kinks or bends MUST beavoided. A minimum bend radius of 12 times the cable diameter must bemaintained.

Where more than one optical fibre is to be run in, the cables are to be labelled 2metres from the ends with their designation BEFORE running in.

Ensure that the anti-dust covers are fitted to the connectors; these covers are to beremoved immediately prior to cleaning and connection to the optical port.

Any non ruggerised fibres required to run external to the rack framework(overhead/underfloor) must be contained within flexible Kopex conduit , that is securedwithin the rack near the point of exit/entry, or contained within a suitable fibre trunkingproperly engineered to manage bends.

Showing lower LTU Showing upper LTU



Figure 1-57: Kopex Flexible Conduit

Figure 1-58: Typical Installation

1.4.3 Managing Fibres Within The RackCAUTION!

Great care must be taken to avoid crossing of fibres, sharp bends or coiling tootightly on management devices.

Fibres must not be positioned where they could be trapped in rack doors closing door,



Fibre spools are provided within the ETSI rack cable ducts for management of fibrepatch cords.

Spools are to be utilised to lose excessive cable slack, maintain minimum bend radiiand prevent fibre damage. See below.



Figure 1-59: Fibre Spool

Note: Velcro straps must be utilised where securing fibres. Care must be taken toensure that straps are not over tightened thus avoiding fibre damage.

The fibre tails should be fed across to the adjacent cable duct in the rack and onto thefirst fibre spool.

Note: The lengths of the fibre tails used may require the use of additional spools tomanage any excess length.

Fibres are to be loaded in a ‘figure-eight’ formation around adjacent spools in order to‘lose’ the excess length.

The optical cables are to be fed from the spools and onto fibre management deviceprovided with the subrack.

Depending upon whether the rack is installed in an overhead or raised floorapplication fibre tails are to be managed to the rack exit at the top or bottom of thecable duct. Cables are to be run along the suite length (in Kopex flexible conduit ifnon-ruggedised) to an interface shelf.

Note: Excessive slack should be avoided in fibres by correctly using fibre spoolsprovided.

Note: There may be a requirement for removal of fibres for maintenance or systemupgrade. This should be considered during fibre installation.

1.4.4 Managing Optical Fibres – OMS 1664 SubrackNote: Where multiple fibres are interfaced to a single optical trib card careful

management of the fibres to the ports is required. This is ensure that access toadjacent cards is not impeded.



Cable management devices are provided in the mid shelf section of the subrack.Features are provided to correctly manage and route fibres feeding cards fitted in thesubrack.

Note: The fibre management device must be utilised to ensure the minimum bendradius and correct management of the fibre optic cables is maintained.

Cables feeding common cards are to be bundled together and secured using a velcrostrap.

Dress bundles vertically upto the cable management area and locate inside theretaining rings provided as shown below.

Figure 1-60: Mid Shelf Fiber Guides

Depending on the card location in the shelf, route bundles left and right as required.Feed the fibre bundles around the guides provided and along the main channel of themanagement shelf.

Run fibres into the cable ducts on either side of the rack.

Note: It may be necessary to protect fibre cables in the cable ducts using flexibleconduit e.g. Kopex.

Figure 1-61: View Showing Card Cage with STM-1 Optical Tribs



1.4.5 Managing Optical Fibres – OMS 1654 SubrackRoute fibres from the front of the card vertically to the top of the sub-rack. Route undercoax and the cable management bar.

Depending on the card location in the shelf, route bundles left and right as required.

Form fibres into small bundles across the top face of the unit and feed across into rackcable space.

Bundle and support fibres using Velcro ties.

Run fibres into the cable ducts on either side of the rack.

Manage cables onto spools and fibre support devices provided.

Note: It may be necessary to protect fibre cables in the cable ducts using flexibleconduit e.g. Kopex.

WARNING!

Great care must be taken to avoid crossing of fibres, sharp bends or coiling tootightly on management devices.

Fibres must not be positioned where they could be trapped in rack doors closing door,

Fibre are to be kept neat, observe min bend radius. Do not stress fibres.

1.4.6 STM-1 Optical and Electrical MixIn certain configurations of the OMS 1664 product family there may be a requirementto mix optical fibre and electrical cables on the same trib card.

Cable management devices have been designed to accommodate both copper andfibre cables.

Primarily optical fibres must be enclosed within the fibre rings provided on the cablemanagement device. Bundle patchcords together and secure using velcro straps.

Route fibres through the fibre guides to either the left or right and into the cable duct.

Copper cables must be bundled together and secured using nylon cable ties. Feed thebundle vertically up to the cable basket provided in the cable management area.Secure cables to the basket using nylon cable ties.

Route cable bundles to either the left or right and into the cable duct.

WARNING!

Nylon cable ties must not be used to secure optical fibre patch cords.



1.5 Code Of Practice - Handling Of Electrostatic Devices

1.5.1 IntroductionNote: This instruction applies to ALL operators who will come into direct contact with,

any (susceptible) piece of electronic hardware.

Electrostatic devices are those devices, which may be damaged by the inadvertentdischarge of static electricity from a charged body.

The risk of damage, due to static discharge to a device, may cause the device to failsuddenly and catastrophically, or it may induce a partial defect within the device,which will cause subsequent premature failure.

Static electricity can be, and is, produced in many ways. It can result from operatorswalking on floors, moving around on chairs, from the movement of operator's clothingor even casual brushing against racks, benches or walls.

This code of practice specifies the generic procedures to be adopted that will minimisethe risk of component failure due to electrostatic discharge to the device. All otherprevious Services Methods Manual statements regarding electrostatic precautions arerevoked in preference of the below.

1.5.2 General Handling ProceduresWARNING!

Where operators are, or will come into direct contact with any (susceptible)piece of electronic hardware, then for the purposes of safe handling operatorsMUST wear an ESD bonding wrist strap. The strap MUST be tested and thequality record held indicating that the test has been carried out.

When received, units containing static sensitive devices will be appropriately labelled.They should be left in their protective conductive packages/bags pending rackallocation.

Units are provided typically in see-through anti-static bags. Wherever possible,checking and inspection of a unit should occur without removing it from the bag.

However, if a unit is to be removed from its protective bag, for inspection or insertioninto the rack, the following precautions must be adhered to:

� All operators must wear the approved conductive overall.

� Fix a wrist strap and cord to a suitable non-mains earth (ESD stud) on therack.

� The unit must be handled by its front plate and board edges only.

Note: The wrist strap cords must have a 2Meg Ohm resistor fitted at either end. Allstraps and cords should be tested using a Wrist Strap Tester prior to use.Wrist straps should be worn in direct contact with bare skin and not overclothing.



WARNINGUnder no circumstances is it permissible for units to be handled by unprotectedoperators.

1.5.2.1 Erecting Cabinets or Overhead IronworkWhere operators are erecting cabinets and/or overhead ironwork then it is notmandatory to wear a bonding wrist strap. Contact with such a mass metallic earthplane will in itself be sufficient protection against electrostatic discharge once thecabinet is installed and earthed.

1.5.3 Portable Field Service Kit (PFSK) And Safe HandlingAreas (SHAs)Currently the philosophy for unit repairs is that all SIUs are to be returned toheadquarters for modification and repair. Under no circumstances attempt to modify orrepair a unit on site.

Consequently, PFSKs and SHA equipment have been withdrawn from circulation andmust not be used.

If for any reason in the future PFSKs or SHAs are necessary on site, InstallationMethods and Standards must verify their specification before use.

1.5.4 Wrist Strap TesterNote: Ensure the wrist strap tester has a valid test label. If not, return to Installation

Stores for test and replacement.

Figure 1-62: Wrist Strap Tester

Test Button



At the start of each day’s activity all wrist straps and cords are to be checked using awrist strap tester, see Figure 1-62 for typical tester.

To check:

� Fit the wrist strap to wrist.

� Fit cord from wrist strap to the appropriate stud on the top of the tester.

� Press the test button. Any result other than a "pass" LED illuminating, rejectthe cord and strap and obtain replacements. A pass result will emit acontinuous bleep.

1.5.5 Test RecordsResults of the test detailed in 1.5.4 are to be recorded on the appropriate inspectionrecord card supplied to site or a note to the same effect can be made in the site diary.

It is important that all straps and cords are tested and that any operator who arrives onsite with a personal strap identifies this fact in order that it will be included on theinspection record.



Blank Page

OMS1664 Product Family Installation and CommissioningRelease 1.3 Commissioning


Chapter 2:Commissioning

2.1 Introduction

2.1.1 Introduction and ScopeThis procedure details the initial tasks that need to be performed when carrying outthe commissioning of the OMS1664, OMS1654, OMS1644, and OMS1634 Multiplexerat Release 1.3 prior to the use of the Local Craft Terminal (LCT) and LCT Subsystem(LCTS) software for the commissioning and configuration process proper.

For all information concerning the use of the LCT in this commissioning andconfiguring process, refer to TOPIC 5.

2.1.2 EMC ProtectionAn OMS 1664 sub-rack must have all card slot positions and all LTU positions fitted tomaintain the EMC performance of the equipment. If any shelf slots do not have cardsfitted then slot blanking plates should be fitted to maintain the equipment EMCprotection.

2.1.3 Static Sensitive WarningEquipment referred to in this specification contains static sensitive devices thereforean ESP wristband MUST be worn and clipped to the rack at all times. Other relevantanti-static precautions are also to be observed at all times during commissioning work.

2.1.4 Cleaning Procedures for Optical ConnectorsAll optical fibre connectors will require inspection for damage and cleanliness.

It is important to use only calibrated non-attenuating SM optical fibre test leads fittedwith the appropriate connectors.



2.1.5 Test Equipment1 For PDH Tributaries a Pattern Generator/Error Detector, with bit by bit

comparison, capable of operating at 1.5, 2, 34, 45 and 140 Mbit/s. Suitableinstruments are the Wandel & Goltermann PF4, the Hewlett Packard 3764A,the Hewlett Packard 37117B/C (with PDH Tx/Rx modules) or equivalent.

2 For STM-1/4/16 Tributaries a SDH Analyser capable of simulating/analysingelectrical or optical STM-1, STM-4, or STM-16 signals. Suitable instrumentsare the Anritsu MP1560A, the Hewlett Packard 37717B/C (with electrical andoptical STM-1/4 modules) or equivalent.

The instruments in (1) and (2) should be capable of monitoring errors over a 24 hourperiod, with an associated printout of the result.

3 10/100M Fast Ethernet Tributaries:– Compatible Test equipment

Anritsu MD1231A IP Network Analyser

Or Agilent J2127A Transmission Test Set

Or EXFO-8510 Packet Blazer

Or DLI NIC GigE with 10/100 module

Or Smartbits 200 with 10/100 SmartMetrics Card.

4 1G Ethernet Tributaries:– Compatible Test equipment

Anritsu MD1231A IP Network Analyser

Or Agilent J2127A Transmission Test Set

Or EXFO-8510 Packet Blazer

Or Smartbits 200 with Gigabit Ethernet Smart Card.

Or DLI NIC GigE

5 A digital voltmeter capable of operating in the range 0-60v with an accuracy of+ 0.5%.

6 A single mode optical power meter with a wide area sensor capable ofoperating in the range +10 to -50 dBm at 1300nm-1550nm, such as thePhotodyne 2250XF. It should also have a suitable optical patch cord.



7 The LCT should be a laptop PC with a Pentium/Celeron processor with a min.speed of 300 MHz, running the LCT application software. The PC’s operatingsystem should be either Win 2000 or Win XP. Communications to the shelf isvia the serial port, using the LCT cable. The PC’s serial port parameters will beautomatically configured when the LCT is loaded.

Software application releases are:-

Release 1.1 LCT & NE Software on CD-ROM code 03PHS00010AAG. Release 1.1 Rev 2A LCT & NE Software on CD-ROM code 03PHS00024AAF. Release 1.2 LCT & NE Software on CD-ROM code 03PHS00010ACR. Release 1.3 LCT & NE Software on CD-ROM code 03PHS00010ADJ.

8 Suitable quantity of optical test leads with LC connectors.

9 A quantity of 5dB and 10dB Diamond attenuators terminated with LC opticalconnectors. The Site Engineer will select the actual value, 10dB being thepreferred value.

10 Suitable quantity of coaxial test leads, with type 1.0/2.3 coax connectors.

11 For 10/100M Fast Ethernet Trib/LTU test: lead terminated at the electrical LTUwith 16 x RJ45 Ports:- 17 off CAT5 Standard LAN UTP two pair cross-overcable, any length

12 For Gigabit Ethernet Test: Analyser to Gig-E test cables ie 4 off optical leads,SC to LC optical connector conversion.

WARNING!

All instruments must conform to the appropriate safety regulations, bear a validcalibration label and a valid electrical safety label if 250 volts mains driven.

2.1.5.1 LCT to OMS1664 Interface CableThe LCT communications connection on the OMS1664 is via a 9 way “D” Typeconnector.

Table 2-1: LCT to OMS1664 Interface CablePC End

(9 pin “D” Type female)OMS1664 End DATA

2 DATA 3

3 DATA 2

- RTS 7

- CTS 8

5* GND 5

Note: Pin 7 used when PC has a 25-pin serial port



2.1.5.2 “CAT5” Two pair Cross-over UTP Fast Ethernet Test Cable

Figure 2-1: EPL-100 Fast Ethernet LTU Interface:-

Eth Data In (A)

Eth Data In (B)

Eth Data Out (A)

a.c. to 0v

a.c. to 0v

Eth Data Out (B)

a.c. to 0v

a.c. to 0v

Figure 2-2: Two pair Cross-over UTP Fast Ethernet Test Cable

2.1.6 Information Required For CommissioningThe Customer/Network Planning Authority are responsible for providing the followinginformation before commissioning can commence.

� Card complement and position for each NE.

� The Ethernet MAC, IS and ES Addresses for the GATEWAY NE.

� The Local NSAP Address for each NE.

� Synchronisation and timing information for each NE (required for Sub-network and Network tests).

8 7 6 5 4 3 2 1

RJ45 Plug End

12345678

12345678

ncnc

ncnc

ncnc

ncnc

RJ45End “A”

RJ45End “B”



� Comms configuration details including LAPD settings.

� If available, fibre loss figures for the sub-network under test.

� Alarm configurations if different from defaults.

� Link Settings (if different from default)

� ALS Policy



2.2 OMS1664 Shelf Configuration & Rules

2.2.1 OMS1664 Standard Shelf Configuration

Figure 2-3: OMS1664 Standard Shelf

The above layout drawing shows the principle structure of the OMS1664 standardshelf. Although slots have been labelled as Line or Trib these are just highlighting atypical application. All slots are fully flexible and can be either Lines or Tribs. (up toSTM-16).

The Shelf’s Core cards are those shaded.

The bottom row offers 21 slots for Line Cards, Tributary (Trib) Cards, TDM Switch,Auxiliary Unit (Aux), and Communications Control Unit (CCU).

The top row contains the Line Terminating Units (LTUs) of the corresponding TribCards and the system LTUs (Power Supply, Clock, TMN access) corresponding toAux and CCU units.

Traf

fic L

TU: L

2 or

T2-

2M L

TU #

3

Trib

1 LT

U o

r T2-

2M L

TU #

2

Trib

2 LT

U o

r T2-

2M L

TU #

1

Trib

3 LT

U o

r T3-

2M L

TU #

1

Trib

4 LT

U o

r T3-

2M L

TU #

2

Trib

5 LT

U o

r T3-

2M L

TU #

3

Trib

6 LT

U o

r T3-

2M L

TU #

4

Trib

7 LT

U o

r T10

-2M

LTU

#4

Trib

8 LT

U o

r T10

-2M

LTU

#3

Trib

9 LT

U o

r T10

-2M

LTU

#2

Trib

10 L

TU o

r T10

-2M

LTU

#1

Trib

11 L

TU o

r T11

-2M

LTU

#1

Trib

12 L

TU o

r T11

-2M

LTU

#2

Traf

fic L

TU: L

3 or

T11

-2M

LTU

#3

Traf

fic L

TU: L

4 or

T11

-2M

LTU

#4

Ala

rms

& A

ux L

TU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

Traf

fic L

TU: L

1 or

T2-

2M L

TU #

4

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

Switc

h B

Trib

7

Line

1/

Trib

Line

2/T

rib

Trib

1

Trib

2 (

2M #

1)

Trib

3 (

2M#2

)

Trib

4

Trib

5

Switc

h A

Trib

11

(2M

#4)

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

Trib

6

Trib

8

Trib

9

Trib

10

(2M

#3)

Trib

12

(2M

Pro

tect

ion)

Line

3/

Trib

Line

4/

Trib

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41



2.2.1.1 OMS1664 Standard Shelf - Slot AllocationLINE/TRIB UNITS:-

Table 2-2: Standard Shelf Line/Trib Units Slot Allocation

ALLOWABLE CARD TYPES

SLOT DESCRIPTIONGeneric Card Type Variant Card Type

LTU Slot

For Card Type

21 Line 1 / Trib PDH Card 6 x 34/45M 1

SDH Card 8 x STM-1 1

16 x STM-1/4 Flex SFP 1


2 x STM-1/4 N/A

1 x STM-16 N/A

DATA Card 16 x 10/100M Fast Ethernet 1

2 x 1000M Gigabit Ethernet N/A


SDH Card 16 x STM-1/4 Flex SFP 2


8 x STM-1 2

2 x STM-1/4 N/A

1 x STM-16 N/A



23 Trib 1 PDH Card 6 x 34/45M 3



8 x STM-1 3

2 x STM-1/4 N/A

1 x STM-16 N/A



24 Trib 2 PDH Card 126 x 1.5/2M 1,2,3,4

(or 2M#1) 32 x 1.5/2M 4

6 x 34/45M 4



8 x STM-1 4





LTU Slot

For Card Type

2 x STM-1/4 N/A

1 x STM-16 N/A



25 Trib 3 PDH Card 126 x 1.5/2M 5,6,7,8

(or 2M#2) 32 x 1.5/2M 5

6 x 34/45M 5



8 x STM-1 5

2 x STM-1/4 N/A

1 x STM-16 N/A






8 x STM-1 6

2 x STM-1/4 N/A

1 x STM-16 N/A






8 x STM-1 7

2 x STM-1/4 N/A

1 x STM-16 N/A



28 Switch A Switch Card 128 x 128 N/A








LTU Slot

For Card Type

8 x STM-1 8

2 x STM-1/4 N/A

1 x STM-16 N/A



30 Switch B Switch Card 128 x 128 N/A




8 x STM-1 9

2 x STM-1/4 N/A

1 x STM-16 N/A






8 x STM-1 10

2 x STM-1/4 N/A

1 x STM-16 N/A






8 x STM-1 11

2 x STM-1/4 N/A

1 x STM-16 N/A



34 Trib 10 PDH Card 126 x 1.5/2M 9,10,11,12

(or 2M#3) 32 x 1.5/2M 12

6 x 34/45M 12






LTU Slot

For Card Type


8 x STM-1 12

2 x STM-1/4 N/A

1 x STM-16 N/A



35 Trib 11 PDH Card 126 x 1.5/2M 13,14,15,16

(or 2M#4) 32 x 1.5/2M 13

6 x 34/45M 13



8 x STM-1 13

2 x STM-1/4 N/A

1 x STM-16 N/A



36 Trib 12 PDH Card 126 x 1.5/2M Protection N/A

(or 2M Prot) 6 x 34/45M 14



8 x STM-1 14

2 x STM-1/4 N/A

1 x STM-16 N/A







2 x STM-1/4 N/A

1 x STM-16 N/A








LTU Slot

For Card Type




2 x STM-1/4 N/A

1 x STM-16 N/A



39 AUX AUX/EOW Card All 17

CCU MC40 CCUA

CCU CommsAll N/A

41 Reserved forfuture use Reserved for future use Reserved for future use N/A



LTU UNITS:-

Table 2-3: Standard Shelf LTU Units Slot Allocation

ALLOWABLE CARD TYPESSLOT LTU DESCRIPTION

Generic Card Type Variant Card Type

1-16 1.5M LTU 32 x Bal 1.5M All

1-16 2M LTU 32 x Bal 2M All

2M LTU 32 x Unbal

1-16 34/45M LTU 6 x UnBal 34/45M All

1-16 STM-1 LTU 8 x SFP 16 x STM-1/4 Flex SFP All

8 x STM-1/4 Flex SFP

1-16 STM-1 LTU 2 x Opt Module 8 x STM-1 All

1-16 Protection LTU (Type) 1 6 x 34/45M All

8 x STM-1 All

16 x STM-1/4 Flex SFP All


1-16 16 x 10/100M Fast Ethernet LTU 10/100M Electrical (RJ45) All

10/100M Optical (SFP, LC) All

17 Alarms & Aux LTU AUX/EOW All

18 Management & Sync LTU Mgt/Sync LTU All

19 Power LTU Power A All

20 Power LTU Power B All



2.2.1.2 OMS1664 Standard Shelf Typical Configurations

Figure 2-4: STM-16 Cross Connect: Up to 8 x STM-16 Ports

The STM-16 Line/Trib Cards can be inserted into any of the 16 slots at the bottom rowof the standard shelf. More than eight slots are available. But only 8 off (max) cardscan be inserted in any of the 16 slots. The above drawing shows one example whereTrib positions 21-24 & 35-38 are used, the limiting factor being the port number. i.e.The capacity of 128 x 128 STM-1 TDM Switch.

Ala

rms

&

Aux

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

Switc

h B

Trib

Car

d #

11

Port

Switc

h A

Aux CC

U A

RES

ERVE

D F

OR

FU

TUR

E

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41

Trib

Car

d #

21

Port

Trib

Car

d #

31

Port

Trib

Car

d #

41

Port

Trib

Car

d #

51

Port

Trib

Car

d #

61

Port

Trib

Car

d #

71

Port

Trib

Car

d #

81

Port

Trib

Car

d #

91

Port

Trib

Car

d #

10 P

ort

Trib

Car

d #

11 1

Por

t

Trib

Car

d #

12 1

Por

t

Trib

Car

d #

13 1

Por

t

Trib

Car

d #

14 1

Por

t

Trib

Car

d #

15 1

Por

t

Trib

Car

d #

16 1

Por

t



Figure 2-5: STM-16 Cross Connect: Up to 128 x STM-1 Ports

Ala

rms

&

Aux

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

Switc

h B

Trib

Car

d #

14

Port

s

Switc

h A

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41

Trib

Car

d #

24

Port

s

Trib

Card# 3

4 Po

rts

Trib

Car

d #

44

Port

s

Trib

Car

d #

54

Port

s

Trib

Car

d #

64

Port

s

Trib

Car

d #

74

Port

s

Trib

Car

d #

84

Port

s

Trib

Car

d #

94

Port

s

Trib

Car

d #

10 4

Por

ts

Trib

Car

d #

11 4

Por

ts

Trib

Car

d #

12 4

Por

ts

Trib

Car

d #

13 4

Por

ts

Trib

Car

d #

14 4

Por

ts

Trib

Car

d #

15 4

Por

ts

Trib

Car

d #

16 4

Por

ts

LTU

# 1

4 Po

rts

LTU

# 2

4 Po

rts

LTU

# 3

4 Po

rts

LTU

# 4

4 Po

rts

LTU

# 5

4 Po

rts

LTU

# 6

4 Po

rts

LTU

# 7

4 Po

rts

LTU

# 8

4 Po

rts

LTU

# 9

4 Po

rts

LTU

# 1

04

Port

s

LTU

# 1

14

Port

s

LTU

# 1

24

Port

s

LTU

# 1

34

Port

s

LTU

# 1

44

Port

s

LTU

# 1

54

Port

s

LTU

# 1

64

Port

s

The STM-1 Trib and LTU Cards contain hot plug-in modules or SFPs with two optical(LC/PC connectors) or electrical interfaces each. Mixed versions with any optical andelectrical interfaces are possible.

One LTU Card is available for each Trib Card using “hot plug-in” modules to extendthe port capacity from 4 ports to 8 ports and for protection purposes. Ie Trib#1 +LTU#1 = 8 Ports.

Or, an 8 port LTU Card is available for each “Flexible” STM-1 Trib Card using “SFP”modules to extend the port capacity from 8 ports to 16 ports and for protectionpurposes. Ie Trib#1 + LTU#1 = 16 Ports.

The above drawing shows the corresponding LTUs in the top row of the standardshelf.

The STM-1 Trib Cards can be inserted in any of the 16 slots at the bottom row of thestandard shelf.

There exists only one type of BASIC Trib. and BASIC LTU Cards (cards withoutmodules). The different hot plug-in modules (different optical STM-1 modules and oneelectrical module) can be inserted in both cards.

The limiting factor for the number of STM-1 ports in the standard shelf, is both thenumber of available slots and the capacity of the TDM Switch. (ie OMS1664 STM-16:16 slots with 8 STM-1 ports each = 128 STM-1 ports.)



1:1 MSP STM-1 Trib ProtectionThe failure of one of n working STM-1 Trib. Cards is protected by one protection STM-1 Trib. Card & Protection LTU. The STM-1 Protection Trib card is inserted to the righthand side of the Worker STM-1 Trib Cards, along with it’s associated Protection LTU.

Note: In the case of failure of one working STM-1 Trib Card, the Protection Trib Cardtakes over the signal processing of this former working Card. The ProtectionLTU routes the signals of the Protection Trib. Card to the LTU Cardcorresponding to the defective Working Trib Card which now is switched off.

Figure 2-6: STM-16 Cross Connect: Up to 504 x 2Mbit/s Ports

The 2Mbit/s Trib Cards can only be inserted in slots 24, 25, 34, or 35 of the bottomrow. Whilst the Trib

Protection card is inserted in slot 36.

Up to 4 LTUs can be allocated to each Trib Card. The above drawing shows the Trib.Card vs. LTU positions.

The 126 x 2Mbit/s signals are distributed to the four LTUs according to the followingrule, (refer to the notation of the LTUs in above drawing):-

Ala

rms

&

Aux

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

Switc

h B

Switc

h A

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41

Trib

Car

d #

112

6 Po

rts

Trib

Car

d #

25 1

26 P

orts

Trib

Car

d #

312

6 Po

rts

Trib

Car

d #

412

6 Po

rts

Trib

Car

d Pr

otec

tion

LTU

# 1

- 4

31 P

orts

LTU

# 1

- 3

32 P

orts

LTU

# 1

- 2

31 P

orts

LTU

# 1

- 1

32 P

orts

LTU

# 2

- 1

32 P

orts

LTU

# 2

- 2

31 P

orts

LTU

# 2

- 3

32 P

orts

LTU

# 2

- 4

31 P

orts

LTU

# 3

- 4

31 P

orts

LTU

# 3

- 3

32 P

orts

LTU

# 3

- 2

31 P

orts

LTU

# 3

- 1

32 P

orts

LTU

# 4

- 1

32 P

orts

LTU

# 4

- 2

31 P

orts

LTU

# 4

- 3

32 P

orts

LTU

# 4

- 4

31 P

orts



Table 2-4: LTU Port NumbersLTU Associated 2Mbit/s

CardPort Numbers

1 Trib 2 96-126 + monitor

2 64-95

3 33-63 + monitor

4 1-32

5 Trib 3 1-32

6 33-63 + monitor

7 64-95

8 96-126 + monitor


10 64-95

11 33-63 + monitor

12 1-32

13 Trib 11 1-32

14 33-63 + monitor

15 64-95

16 96-126 + monitor



Figure 2-7: STM-16 Add-Drop Multiplexer: Up to 128 x STM-1 Ports

The above shelf drawing shows a configuration with STM-1 Trib/LTU cards & four Linecards.

Useable STM-1 Ports with Different Line Functionality:-

Table 2-5: STM-1 Ports with Different Line Functionality

Note: In case of STM-16 the number of usable STM-1 ports is higher, because STM-16 protection doesn’t allocate any switch capacity.

SMA1664 STM-16Cards Number of Line

PortsSlots Required Available Slots

(Trib & LTU)N – Numberof STM-1Ports

0 0 16 1281)2)

1 1 15 1122)

2 2 14 962)

3 3 13 802)

STM-16

4 4 12 642)

Limiting factors for Port number N: 1) Available slots for Trib and LTU cards

2) Capacity of 128 x 128 STM-1 TDM Switch

Ala

rms

&

Aux

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

Switc

h B

Line

Car

d #

1

Switc

h A

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41

Line

Car

d #

2

Trib

Car

d #

34

Port

s

Trib

Car

d #

44

Port

s

Trib

Car

d #

54

Port

s

Trib

Car

d #

64

Port

s

Trib

Car

d #

74

Port

s

Trib

Car

d #

84

Port

s

Trib

Car

d #

94

Port

s

Trib

Car

d #

10 4

Por

ts

Trib

Car

d #

11 4

Por

ts

Trib

Car

d #

12 4

Por

ts

Trib

Car

d #

13 4

Por

ts

Trib

Car

d #

14 4

Por

ts

LTU

# 3

4 Po

rts

LTU

# 4

4 Po

rts

LTU

# 5

4 Po

rts

LTU

# 6

4 Po

rts

LTU

# 7

4 Po

rts

LTU

# 8

4 Po

rts

LTU

# 9

4 Po

rts

LTU

# 1

04

Port

s

LTU

# 1

14

Port

s

LTU

# 1

24

Port

s

LTU

# 1

34

Port

s

LTU

# 1

44

Port

s

Line

Car

d #

1

Line

Car

d #

1



Figure 2-8: STM-16 Add-Drop Multiplexer: Up to 504 x 2Mbit/s Ports

With line functionality, the number of available 2Mbits Trib Ports of OMS1664 is notreduced.

The above configuration shows the example of an OMS1664 standard shelf with 4 xLine Cards, 4 x Tribs. and 16 x LTU Cards.

The 2Mbit/s Trib. Cards can only be inserted in slots ,24,25, 34,35 of the bottom row.Whilst the Trib Protection card is inserted in slot 16.

Up to 4 LTUs can be allocated to each Trib. Card. The above drawing shows the Trib.Card vs. LTU positions.

The 126 x 2Mbit/s signals are distributed to the four LTUs according to the followingrule, (refer to the notation of the LTUs in above drawing):-

Table 2-6: LTU Port NumbersLTU Associated 2Mbit/s

CardPort Numbers


2 64-95

3 33-63 + monitor

4 1-32

5 Trib 3 1-32

6 33-63 + monitor

Ala

rms

&

Aux

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

Switc

h B

Switc

h A

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41

Trib

Car

d #

112

6 Po

rts

Trib

Car

d #

25 1

26 P

orts

Trib

Car

d #

312

6 Po

rts

Trib

Car

d #

412

6 Po

rts

Trib

Car

d Pr

otec

tion

LTU

# 1

- 4

31 P

orts

LTU

# 1

- 3

32 P

orts

LTU

# 1

- 2

31 P

orts

LTU

# 1

- 1

32 P

orts

LTU

# 2

- 1

32 P

orts

LTU

# 2

- 2

31 P

orts

LTU

# 2

- 3

32 P

orts

LTU

# 2

- 4

31 P

orts

LTU

# 3

- 4

31 P

orts

LTU

# 3

- 3

32 P

orts

LTU

# 3

- 2

31 P

orts

LTU

# 3

- 1

32 P

orts

LTU

# 4

- 1

32 P

orts

LTU

# 4

- 2

31 P

orts

LTU

# 4

- 3

32 P

orts

LTU

# 4

- 4

31 P

orts

Line

Car

d #

1

Line

Car

d #

2

Line

Car

d #

3

Line

Car

d #

4



LTU Associated 2Mbit/sCard

Port Numbers

7 64-95

8 96-126 + monitor


10 64-95

11 33-63 + monitor

12 1-32

13 Trib 11 1-32

14 33-63 + monitor

15 64-95

16 96-126 + monitor



2.2.2 OMS1634 Shelf ConfigurationThe figure below shows the shelf layout of the OMS1634, which uses the “Standard”shelf with the STM4/16 Core card in the Switch slots.

The Shelf’s “core” cards are those shaded.

The bottom row offers slots for Tributary (Trib) Cards, Core/TDM Switch, Auxiliary Unit(Aux), and Communications Control Unit (CCU).

The top row contains the Line Terminating Units (LTUs) of the corresponding TribCards and the system LTUs (Power Supply, Clock, TMN access) corresponding toAux and CCU units.

The TDM bandwidth supported on the Core card is limited by it’s switch functionality.

In the case of STM 4/16 Core card, the limitation is 48 x STM-1. This is distributed as8 x STM-1 to 4 slots and 4 x STM-1 to 4 slots.

Lines 1,2,3,4 and Tribs 4,6,7,9 have no TDM bandwidth allocation, & are NOTsupported.

Traf

fic L

TU: L

2 or

T2-

2M L

TU #

3

Trib

1 LT

U o

r T2-

2M L

TU #

2

Trib

2 LT

U o

r T2-

2M L

TU #

1

Trib

3 LT

U o

r T3-

2M L

TU #

1

Trib

4 LT

U o

r T3-

2M L

TU #

2

Trib

5 LT

U o

r T3-

2M L

TU #

3

Trib

6 LT

U o

r T3-

2M L

TU #

4

Trib

7 LT

U o

r T10

-2M

LTU

#4

Trib

8 LT

U o

r T10

-2M

LTU

#3

Trib

9 LT

U o

r T10

-2M

LTU

#2

Trib

10 L

TU o

r T10

-2M

LTU

#1

Trib

11 L

TU o

r T11

-2M

LTU

#1

Trib

12 L

TU o

r T11

-2M

LTU

#2

Traf

fic L

TU: L

3 or

T11

-2M

LTU

#3

Traf

fic L

TU: L

4 or

T11

-2M

LTU

#4

Ala

rms

&

Au

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

Traf

fic L

TU: L

1 or

T2-

2M L

TU #

4

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

SWIT

CH/

CO

RE

B

Trib

7

Line

1/T

rib

Line

2/T

rib

Trib

1

Trib

2 (2

M #

1)

Trib

3 (

2M#2

)

Trib

4

Trib

5

SWIT

CH/

CO

RE

A

Trib

11

(2M

#4)

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

Trib

6

Trib

8

Trib

9

Trib

10 (

2M#3

)

Trib

12

(2M

Pro

tect

ion)

Line

3/T

rib

Line

4/T

rib

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41



2.2.2.1 OMS1634 Typical Shelf Configuration

The above configuration shows the example of an OMS1634 shelf with 2 x CoreCards which include Line functionality, & 4 x 2Mbit/s Tribs. with 16 x LTU Cards.

The 2 Mbit/s Trib. Cards can only be inserted in slots 4, 5, 14, or 15, of the bottomrow. Whilst the Trib. Protection card is inserted in slot 16. Up to 4 LTUs can beallocated to each Trib. Card. The above drawing shows the Trib. Card vs. LTUpositions.

The 504 x 2 Mbit/s signals are distributed to the LTUs according to the followingtable:-

LTU Associated 2Mbit/s Card Port Numbers1 96-126 + monitor

2 64-95

3 33-63 + monitor

4

Trib 2

1-32

5 1-32

6 33-63 + monitor

7 64-95

8

Trib 3

96-126 + monitor

Ala

rms

&

Aux

LTU

Man

agem

ent &

Syn

c LT

U

LTUn-1

LTUn-4

LTUn-3

LTUn-2

LTUn-5

LTUn-8

LTUn-7

LTUn-6

LTUn-9

LTUn-12

LTUn-11

LTUn-10

LTUn-13

LTUn-16

LTUn-15

LTUn-14

PowerLTU A

SWIT

CH

/CO

RE

B

SWIT

CH

/CO

RE

A

Aux

CC

U A

RES

ERVE

D F

OR

FU

TUR

E

LTUn-17

LTUn-18

PSU An-19

PowerLTU B

PSU Bn-20

Cardn-21

Cardn-22

Cardn-23

Cardn-24

Cardn-25

Cardn-26

Cardn-27

Cardn-28

Cardn-29

Cardn-30

Cardn-31

Cardn-32

Cardn-33

Cardn-34

Cardn-35

Cardn-36

Cardn-37

Cardn-38

Auxn-39

CCUAn-40

CCUBn-41

Trib

2 - 2

Mb/

s 1

26 P

orts

Trib

3 - 2

Mb/

s 1

26 P

orts

Trib

10 -

2Mb/

s 1

26 P

orts

Trib

11 -

2Mb/

s 1

26 P

orts

Trib

12 -

2Mb/

s Pr

otec

tion

LTU

# 1

- 4

31 P

orts

LTU

# 1

- 3

32 P

orts

LTU

# 1

- 2

31 P

orts

LTU

# 1

- 1

32 P

orts

LTU

# 2

- 1

32 P

orts

LTU

# 2

- 2

31 P

orts

LTU

# 2

- 3

32 P

orts

LTU

# 2

- 4

31 P

orts

LTU

# 3

- 4

31 P

orts

LTU

# 3

- 3

32 P

orts

LTU

# 3

- 2

31 P

orts

LTU

# 3

- 1

32 P

orts

LTU

# 4

- 1

32 P

orts

LTU

# 4

- 2

31 P

orts

LTU

# 4

- 3

32 P

orts

LTU

# 4

- 4

31 P

orts



LTU Associated 2Mbit/s Card Port Numbers9 96-126 + monitor

10 64-95

11 33-63 + monitor

12

Trib 10

1-32

13 1-32

14 33-63 + monitor

15 64-95

16

Trib 11

96-126 + monitor

2.2.2.2 OMS1634 Shelf Slot Allocations

LINE/TRIB UNITS:-ALLOWABLE CARD TYPES


LTU Slot

For Card Type

21 Line 1 / Trib Not Supported N/A




8 x STM-1 3

2 x STM-1/4 N/A



24 Trib 2 PDH Card 126 x 1.5/2M 1,2,3,4

(or 2M#1) 32 x 1.5/2M 4

6 x 34/45M 4


8 x STM-1 4

2 x STM-1/4 N/A



25 Trib 3 PDH Card 126 x 1.5/2M 5,6,7,8

(or 2M#2) 32 x 1.5/2M 5

6 x 34/45M 5


8 x STM-1 5

2 x STM-1/4 N/A





LTU Slot

For Card Type



26 Trib 4 Not Supported N/A



8 x STM-1 7

2 x STM-1/4 N/A



28 Switch A CORE Card 64 x 64 N/A


30 Switch B CORE Card 64 x 64 N/A




8 x STM-1 10

2 x STM-1/4 N/A




34 Trib 10 PDH Card 126 x 1.5/2M 9,10,11,12

(or 2M#3) 32 x 1.5/2M 12

6 x 34/45M 12


8 x STM-1 12

2 x STM-1/4 N/A



35 Trib 11 PDH Card 126 x 1.5/2M 13,14,15,16

(or 2M#4) 32 x 1.5/2M 13

6 x 34/45M 13


8 x STM-1 13

2 x STM-1/4 N/A





LTU Slot

For Card Type



36 Trib 12 PDH Card 126 x 1.5/2M Protection N/A

(or 2M Prot) 6 x 34/45M 14


8 x STM-1 14

2 x STM-1/4 N/A





39 AUX AUX/EOW Card All 17

CCU MC40 CCUA

CCU CommsAll N/A

41 Reserved forfuture use Reserved for future use Reserved for future use N/A



LTU UNITS:-

ALLOWABLE CARD TYPESSLOT LTU DESCRIPTION


1-16 1.5M LTU 32 x Bal 1.5M All


2M LTU 32 x Unbal

1-16 34/45M LTU 6 x UnBal 34/45M All


1-16 STM-1 LTU 2 x Opt Module 8 x STM-1 All


8 x STM-1 All




17 Alarms & Aux LTU AUX/EOW All






2.3 OMS1654 (Compact) Typical Shelf Configurations

2.3.1.1 OMS1654 -STM-16 ADMUX: Up to 126 x 2Mbit/s Ports

Figure 2-9: OMS1634 (Compact) 2Mb/s Admux Shelf

n-17

Man

agem

ent &

Syn

c LT

U

n-3 n-4 n-5 n-6 n-11 n-12 n-14 n-15 n-16 n-18

n-19

Pow

er L

TU A

Trib

4 -

2M (1

26 P

orts

)

Trib

3 - 2

M P

rote

ctio

n

Switc

h A

Switc

h B

Line

1

Line

2

CC

U

n-2 n-13

Aux

Car

d

n-1

Fan Tray

Trib

1

n-9 n-10

Trib

2

n-7 n-8

Line

3

Line

4

Alar

ms

&

Au

LTU

Pow

er L

TU B

n-20

Trib

4-2

M #

4 LT

U (3

1 Po

rts)

Trib

4-2

M #

3 LT

U (3

2 Po

rts)

Trib

4-2

M #

2 LT

U (3

1 Po

rts)

Trib

4-2

M #

1 LT

U (3

2 Po

rts)

Up to 4 LTUs can be allocated to the 2M Tributary Card, see above drawing for LTUpositions.

The 126 x 2 Mbit/s signals are distributed to the four LTUs according to the followingtable:-

LTU Associated 2Mbit/s Card Port Numbers

1 96-126 + monitor

2 64-95

3 33-63 + monitor

4

Trib 4

1-32

2M Card Protection:-

A maximum of 126 x 2M can be supported on the OMS1654, using Trib 4 (slot 12).

2M card protection is supported by using 2M trib in Trib 3 (slot 11).



2.3.1.2 OMS1654 - STM-16 ADMUX: Up to 32 x STM-1 Ports

Figure 2-10: OMS1654 (Compact) STM-1 Admux shelf

n-17

Man

agem

ent &

Syn

c LT

U

n-3 n-4 n-5 n-6 n-11 n-12 n-14 n-15 n-16 n-18

n-19

Pow

er L

TU A

Trib

4 S

TM-1

(8 P

orts

)

Trib

3 ST

M-1

(8 P

orts

)

Switc

h A

Switc

h B

Line

1

Line

2

CC

U

n-2 n-13

Aux

Car

d

n-1

Fan Tray

Trib

1 ST

M-1

(8 P

orts

)

n-9 n-10

Trib

2 ST

M-1

(8 P

orts

)

n-7 n-8

Line

3

Line

4

Alar

ms

&

Au

LTU

Pow

er L

TU B

n-20Tr

ib 1

LTU

Trib

2 L

TU

Trib

3 L

TU

Trib

4 L

TU

The STM-1 Trib and LTU Cards contain hot plug-in modules or SFPs with two optical(LC/PC connectors) or electrical interfaces each. Mixed versions with any optical andelectrical interfaces are possible.

One LTU Card is available for each Trib Card using “hot plug-in” modules to extendthe port capacity from 4 ports to 8 ports and for protection purposes. Ie Trib#1 +LTU#1 = 8 Ports.

Or, an 8 port LTU Card is available for each “Flexible” STM-1 Trib Card using “SFP”modules to extend the port capacity from 8 ports to 16 ports and for protectionpurposes. Ie Trib#1 + LTU#1 = 16 Ports.

There is one type of BASIC Trib. and BASIC LTU Cards (cards without modules). Thedifferent hot plug-in modules (different optical STM-1 modules and one electricalmodule) can be inserted in either cards.

Non-PDH Trib Protection:-

All 4 Tribs have an associated LTU. Flexible 1:N can be supported.

Protection options are: One group of 1:3 or 1:2, Two groups of 1:1.

Data Card Protection:-

Unit protection for the 2x1000M (EPL-1000) Gigabit Ethernet & 16x10/100M (EPL-100) Fast Ethernet card is NOT supported.



2.3.1.3 OMS1654 Shelf Slot Allocation

Table 2-7: OMS1654 Shelf Slot Allocation

ALLOWABLE CARD TYPESSLOT DESCRIPTION


1 AUX AUX/EOW Card All

2 CCU CCU MC All

CCU Comms All

3 Line 1 SDH Card 16 x STM-1/4 Flex SFP


8 x STM-1

4 Line 2 2 x STM-1/4

1 x STM-16

DATA Card 2 x 1000M Gigabit Ethernet

5 Switch A

6 Switch BSwitch Card 128 x 128

7 Line 3 SDH Card 16 x STM-1/4 Flex SFP


8 x STM-1

8 Line 4 2 x STM-1/4

1 x STM-16

DATA Card 2 x 1000M Gigabit Ethernet

9 Trib 1 PDH Card 6 x 34/45M

SDH Card 16 x STM-1/4 Flex SFP


8 x STM-1

10 Trib 2 2 x STM-1/4

1 x STM-16

DATA Card 16 x 10/100M Fast Ethernet

2 x 1000M Gigabit Ethernet

11 Trib 3 (2M Prot for T4) PDH Card 126 x 1.5/2M

6 x 34/45M



8 x STM-1

2 x STM-1/4

1 x STM-16



12 Trib 4 PDH Card 126 x 1.5/2M



ALLOWABLE CARD TYPESSLOT DESCRIPTION


32 x 1.5/2M

6 x 34/45M



8 x STM-1

2 x STM-1/4

1 x STM-16



ALLOWABLE CARD TYPESLTU

SLOTLTU DESCRIPTION


13-16 1.5M LTU 32 x Bal 1.5M All


2M LTU 32 x Unbal

13-16 34/45M LTU 6 x UnBal 34/45M All



13-16 STM-1 LTU 4 x Opt 8 x STM-1 All


8 x STM-1 All





17 Alarms & Aux LTU Alarm/Aux LTU All






2.4 OMS1644 Typical Shelf ConfigurationThe TDM bandwidth supported on the Core card is limited by it’s switch functionality.

In the case of STM 4/16 Core card, the limitation is 48 x STM-1. This is distributed as8 x STM-1 to 6 slots.

Note: Lines 1 & 2 have no TDM bandwidth allocation, & are NOT supported.

2.4.1 OMS1644 STM-16 ADMUX: Up to 126 x 2Mbit/s Ports

Up to 4 LTUs can be allocated to the 2M Tributary Card, see above drawing for LTUpositions.

The 126 x 2 Mbit/s signals are distributed to the four LTUs according to the followingtable:-

LTU Associated 2Mbit/s Card Port Numbers

1 96-126 + monitor

2 64-95

3 33-63 + monitor

4

Trib 4

1-32

2M Card Protection:-

A maximum of 126 x 2M can be supported on the OMS1644, using Trib 4 (slot 12).

2M card protection is supported by using 2M trib in Trib 3 (slot 11).

n-17

Man

agem

ent &

Syn

c LT

Un-3 n-4 n-5 n-6 n-11 n-12 n-14 n-15 n-16 n-18

n-19

Pow

er L

TU A

Trib

4 -

2M (1

26 P

orts

)

Trib

3 -

2M P

rote

ctio

n

Switc

h/C

ore

A

Switc

h/C

ore

B

Line

1

Line

2

CC

U

n-2 n-13

Aux

Car

d

n-1

Fan Tray

Trib

1

n-9 n-10

Trib

2

n-7 n-8

Line

3

Line

4

Alar

ms

&

Au

LTU

Pow

er L

TU B

n-20

Trib

4-2M

#4

LTU

(31

Ports

)

Trib

4-2

M #

3 LT

U (3

2 Po

rts)

Trib

4-2

M #

2 LT

U (3

1 Po

rts)

Trib

4-2

M #

1 LT

U (3

2 Po

rts)



2.4.1.1 OMS1644 Shelf Slot AllocationALLOWABLE CARD TYPESSLOT DESCRIPTION Generic Card Type Variant Card Type

1 AUX AUX/EOW Card All

2 CCU CCU MC All

CCU Comms All

3 Line 1 Not Supported N/A

4 Line 2 Not Supported N/A

5 Switch A

6 Switch BCORE Card STM-4/16

Switch 64 x64

7 Line 3 SDH Card8 x STM-1/4Flex SFP

8 Line 4 8 x STM-1

2 x STM-1/4

DATA Card 2 x 1000MGigabitEthernet

9 Trib 1 PDH Card 6 x 34/45M

10 Trib 2SDH Card

8 x STM-1/4Flex SFP

8 x STM-1

2 x STM-1/4

DATA Card16 x 10/100MFast Ethernet

2 x 1000MGigabitEthernet

11 Trib 3 (2M Prot for T4) PDH Card 126 x 1.5/2M

6 x 34/45M

SDH Card8 x STM-1/4Flex SFP

8 x STM-1

2 x STM-1/4



ALLOWABLE CARD TYPESSLOT DESCRIPTION Generic Card Type Variant Card Type



12 Trib 4 PDH Card 126 x 1.5/2M

32 x 1.5/2M

6 x 34/45M

SDH Card8 x STM-1/4Flex SFP

8 x STM-1

2 x STM-1/4





ALLOWABLE CARD TYPESLTU

SLOTLTU DESCRIPTION


13-16 1.5M LTU 32 x Bal 1.5M All


2M LTU 32 x Unbal

13-16 34/45M LTU 6 x UnBal 34/45M All


13-16 STM-1 LTU 4 x Opt 8 x STM-1 All


8 x STM-1 All





17 Alarms & Aux LTU Alarm/Aux LTU All




2.5 Preliminary ChecksWARNING!

If specific authority is required power is not to be applied until instructed

2.5.1 Inspection

2.5.1.1 Visual InspectionVisually inspect all units, both working and spare, for obvious evidence of mishandlingduring transportation or installation. Do not remove unit lids or covers.

Visually inspect the backplane connector pins, to ensure none are bent or broken.

2.5.1.2 Build Level CheckPrior to any work being undertaken all equipment is to be checked to ensure it is at thecorrect build level as agreed between the customer and the appropriate Marconicommunications business unit.



2.5.2 ALS Link Settings

2.5.3 Summary of all Card/Port ALS Links (inc. DefaultSettings)Below is a summary of all the ALS card and port control link options including thedefault settings that shall be adopted on the Slide in Units. These shall however betailored to suit each customer during the installation and commissioning phase. Inorder to reduce implementation times the default settings shall be achieved by notrequiring a link to be fitted.

2.5.3.1 Card ALS Control LinkThe purpose of having a Card ALS Control Link is to ensure that ALS operationcannot easily be disabled if an operator deems it an essential part of their safetyphilosophy. There is one Card ALS Control Link per card, any change to the settingnecessitates removing the card from the subrack.

The two possible link settings are:-

Not Fitted Hardware enabled (ALS always active)

Fitted NM/LCT configured (ALS enabled/disabled via MN/LCT)

2.5.3.2 ALS Automatic Laser Restarts Control LinkThe purpose of having an ALS Auto Restarts Control Link is to ensure that auto restartoperation cannot easily be enabled if an operator deems they should be suppressedas part of their safety philosophy. There is one ALS Auto Restarts Control Link percard, any change to the setting necessitates removing the card from the subrack.


Not Fitted Automatic laser restarts enabled (default)

Fitted Automatic laser restarts disabled

2.5.3.3 ALS Remote Manual Restarts Control LinkThe purpose of having an ALS Remote Manual Restarts Control Link is to ensure thatmanual restarts cannot be initiated remotely if an operator deems they should besuppressed as part of their safety philosophy. There is one ALS Remote ManualRestarts Control Link per card, any change to the setting necessitates removing thecard from the subrack.


Not Fitted Remote manual laser restarts disabled (default)

Fitted Remote manual laser restarts enabled

2.5.3.4 ALS Single-Fibre Working Mode Control LinkThe purpose of having an ALS Single-Fibre Working Control Link is to introduce anadditional criterion by which ALS can infer fibre-discontinuity. The additional criterionis based on section trace identifier value, and becomes active if the accepted receivedidentifier matches the transmitted identifier. The reasoning behind this is that thereceiver can align to the signal reflected from a broken fibre-end, and thus dLOS willnot be detected and therefore ALS will not operate. If the link is set for single-fibre



working, the operator MUST configure different transmitted section trace identifiervalues at both ends of the section. Failure to do so will result in permanent shutdownand consequent loss of traffic. There is one ALS Single-Fibre Working Control Link perport, any change to the setting necessitates removing the card from the subrack.


Not Fitted Dual-Fibre working (uni-directional)

Fitted Single-Fibre working (bi-directional)

2.5.4 Summary of all NM/LCT ALS Control options

2.5.4.1 NE ALS PreferenceThe purpose of having an NE ALS Preference is so that the NE can assist theoperator in ensuring that ALS is active (or not) consistently across all cards in the NE.

This is configured by the operator via LCT when the NE is commissioned. It cannot bechanged thereafter without de-commissioning the NE.

The user configurable options are:-

Hardware Enabled

ALS always active

NM/LCT Configured ALS active/inactive via NM/LCT

No default is offered on the commissioning screen (the field is blank), forcing theoperator to select an option from the drop-down list before commissioning can becompleted.

2.5.4.2 Card ALS PolicyThe card firmware compares the setting of the Card ALS Control Link against the CardALS Policy. If they do not match, a policy mismatch alarm is raised to warn theoperator of the conflict so that the link setting can be changed, if appropriate, beforethe card is put into service.

The purpose of having a Card ALS Policy is to allow one or more cards to operatecontrary to the NE ALS Preference without raising a policy mismatch alarm.

When a card is added to the subrack logical configuration, its default Card ALS Policywill be the same as the NE ALS Preference which was configured when the NE wascommissioned.

The Card ALS Policy can be changed by the operator via NM/LCT at any time.


Hardware Enabled ALS always active

NM/LCT Configured ALS active/inactive via NM/LCT

2.5.4.3 NE ALS Operation Default (not available in R1.3)A card which has its Card ALS Control Link set to allow ALS Operation viaNM/LCT must assume a default of either ALS enabled or ALS disabled when the cardis added to the logical subrack configuration.



The purpose of having an NE ALS Operation Default is to allow the operator to definethe default. All cards in the NE will then behave consistently.



ALS Enabled ALS used

ALS Disabled ALS not used

No default is offered on the commissioning screen (the field is blank), forcing theoperator to select an option from the drop-down list before commissioning can becompleted.

2.5.4.4 ALS OperationIf enabled by the Card ALS Control Link, the operator is able to configure viaNM/LCT whether ALS should operate or not.

When a card is added to the subrack logical configuration, its default NM/LCT Controlwill be the same as the NE ALS Operation Default which was configured when theNE was commissioned.

For equipment which does not yet support NE ALS Operation Default configuration atcommissioning, when a card is added to the subrack logical configuration, its defaultNM/LCT Control will be ALS inactive.

The ALS operation can be configured by the operator via NM/LCT at any time.


ALS Enabled ALS used

ALS Disabled ALS not used

2.5.4.5 Laser Restart Pulse Length ConfigurationThe purpose of having Laser Restart Pulse Length Configuration is to allow theoperator to extend the normal 2 second laser restart pulse to a length of 9 seconds.This is sometimes necessary where the optical transmission route features multipleoptical amplifiers, DWDM being a prime example. Configuration is possible for eachindividual optical port.

The ALS Restart Pulse Length can be configured by the operator via NM/LCT at anytime.


2 seconds (default) For General use

9 seconds For DWDM/Amplified routes

2.5.4.6 Laser Restart Delay ConfigurationThe purpose of having Laser Restart Delay Configuration is to allow the operator toextend the more usual 100 second laser restart interval. This is sometimes necessarywhere the optical output forms an input to a passive DWDM system. Fibre breakagewill trigger ALS simultaneously on all connected NEs. If all NEs generate auto-restartssimultaneously, then potential exists for the combined optical power issuing from the



broken fibre end to exceed safety limits. This feature provides a means to stagger therestart pulses. Configuration is possible for each individual optical port. The samedelay value is used for the delay between Manual (pushbutton), Remote andAutomatic restart pulses.

The ALS Restart Pulse Interval can be configured by the operator via NM/LCT at anytime.


100 to 300 seconds

(default 100)

In increments of 1 second

2.5.4.7 NE Constantly Changing Trace Identifier Configuration (CCTTI)The purpose of having a Constantly Changing Trace Identifier configuration is to allowthe operator to determine the behaviour of the section trace identifier acceptancealgorithm in the event that a stable value is never received for long enough to becomeaccepted.



Used (default) CCTTI Used as part of ALS criteria.

Not Used CCTTI Not Used as part of ALS criteria.

If the configuration is set to Used, then ALS will shut-down the laser if this ConstantlyChanging Trace Identifier condition is detected. The reasoning behind this is that thesignal could be a heavily attenuated reflection from a broken fibre-end.

2.5.4.8 Interworking of Manual, Remote and Automatic Restart PulsesThe Manual (pushbutton) and Remote Restarts are only allowed once and only beforethe first automatic restart has occurred. Either one manual or one remote restart isallowed, not both. Further manual/remote restart attempts are ignored. This singlemanual or remote restart must occur before the first automatic restart (if enabled vialink) has occurred. The time before the first (and adjacent) automatic restart pulses isset by Laser Restart Delay Configuration. The purpose of the manual and remoterestart feature is to allow the operator to restart an optical section once ALS hasoccurred. This is needed if automatic restart pulses have been switched off via ALSAutomatic Laser Restarts Control Link. The manual or remote restart can also beused to provide an instant restart pulse (only once) after ALS has occurred rather thanhaving to wait for the Automatic restart pulse to occur. Once a manual or remoterestart has occurred then automatic restart pulses (if applicable) start to occur after theset delay has expired after the manual/remote restart.

2.5.4.9 Spare Test LinkAt the bottom of the ALS link cluster there are often spare test links to be used only fordevelopment purposes. This must not be used by the customer, even to park a sparelink.



Figure 2-11: Subset of ALS Configurability Currently Supported By OMS1664

ENALSDIS(H/W LINK)

(PER CARD)

FITTEDNOT FITTED

ALS OPERATION(NM/LCT CONFIGURATION)

(PER PORT)

DISABLEDENABLED

ALS INACTIVE

ALS ACTIVE

RESTARDIS(H/W LINK)

(PER CARD)

FITTEDNOT FITTED

AUTORESTARTS

RESTARTPULSE

LENGTH

RESTARTPULSE

INTERVAL

SINGLE-FIBRE

WORKING

DUAL-FIBRE

WORKING

BIDIENA(H/W LINK)

(PER PORT)

FITTEDNOT FITTED

REMOTE MANUALRESTARTS (R1.3 onwards)

MCZRESENA(H/W LINK)

(PER CARD)

FITTED NOT FITTED

ALSRESPLS(NM/LCT CONFIGURATION)

(PER PORT)

2 OR 9 SECS

RESTARDEL(NM/LCT CONFIGURATION)

(PER PORT)

100 TO 300 SECS - STEP 1S

DISABLEDENABLED DISABLEDENABLED

NE ALS PREFERENCE(NM/LCT CONFIGURATION)

(PER NE)(COMMISSIONING ONLY)

NM/LCTCONTROL

HARDWAREENABLED

CARD ALS POLICY(NM/LCT CONFIGURATION)

(PER CARD)

NM/LCTCONTROL

HARDWAREENABLED

DEFAULT INHERITEDWHEN CARD ADDED TO

SUBRACK LOGICALCONFIGURATION

RAI

SE 'A

LS P

OLI

CY

MIS

MAT

CH

' ALA

RM

IF C

ON

FIG

UR

ATIO

N A

ND

LIN

K C

ON

FLIC

T

AS S

HIP

PED

AS S

HIP

PED

AS S

HIP

PED

DEF

AULT

= 2

SEC

S

DE

FAU

LT =

100

SEC

S

AS S

HIP

PED

DEFAULT



Table 2-8: ALS configurability per cardItem Per Port/card Default Meaning of Default

ENALSDIS Per Card (S/w perport)

No link fitted ALS ON (no S/W control)

ALSRESPLS S/W only, per port 2 sec Restart pulse 2 secALSCCTTIEN S/W only, per card Disabled Enhanced SFW not usedBIDIENA H/W only, per port. No link fitted SFW disabledMCZRESENA H/W only, per card No link fitted No Micro Restarts

allowedRESTARDIS H/W only, per card No link fitted Automatic Restarts

enabled



Figure 2-12: ALS Shelf Commissioning Process Flowchart

Do youwant ALS to be disabled

by default?

Set"NE ALS Preference Default"

to"H/W Enabled"

Set"NE ALS Preference Default"

to"NM/LCT Configured"

Set"NM/LCT ALS Operation

Default"to

"Disabled"

Set"NM/LCT ALS Operation

Default"to

"Enabled"

Might youever want any ports to

have ALS disabled?

Is itimportant that ALScan't be disabled

? Yes

No

Yes

No

Yes

No

End

Start

If the "NE ALS Preference Default" is "H/W Enabled",then the "NM/LCT ALS Operation Default" can be setto either "Enabled" or "Disabled" (it doesn't matterwhich), but a default must be set before thecommissioning screen can be closed.



Figure 2-13: ALS Card Insertion Process Flowchart

Don't fit hardware link

("H/W Enabled")

Fit hardware link

("NM/LCT Configured")

Mightyou ever want to

choose which ports haveALS enabled

?

Is itimportant that ALScan't be disabled

? Yes

No

Yes

No

Insert card into subrack

Is"ALS Config Mismatch"

alarm raised?

Start

Changehardware link setting

Change"Card ALS Policy"

Shouldthis card contravene"NE ALS Preference"

?

Yes

No

Yes

End

No



2.5.5 STM-1 Traffic Card Link SettingsX650 Link Description

Pins 1 - 2 ALS Operation Control Link

Pins 3 - 4 ALS Automatic Laser Restarts Control Link

Pins 5 - 6 ALS Remote Manual Laser Restarts Control Link

Pins 7 - 8 (Not Used

Pins 9 - 10 (Not Used)

Figure 2-14: ALS link settings for an STM-1 Trib/Traffic card (Sketch)

PIN A1



Figure 2-15: ALS Link Settings for an STM-1 Trib/Traffic card (Photo)

Figure 2-16: Blow-up of Link Area for STM-1 Trib/Traffic Card

ALS Links

Pin 1-2

1 2

3 4

5 6

7 8

9



Bottom

Fron

tfas

cia

2.5.6 Single Fibre Working Links on Optical ModulesThe Optical Modules also have BIDIENA links for use when working in Single FibreWorking mode.

BIDIENA Link Header X2

Fit Link a1 to b1 for Single Fibre Working operation on Port 1 (using externalcouplers).

Fit Link a2 to b2 for Single Fibre Working operation on Port 2 (using externalcouplers).

Depending on the PCB build level, there are different pin positions for the ALS linksettings.

X2 Link Description

Pins A1 - B1 SFW Operation Port 1 (Bi Directional Enable)

Pins A2 - B2 SFW Operation Port 2 (Bi Directional Enable)

2.5.7 STM-4 Traffic Card Link SettingsALS Link Header X13

� ENALSDIS: Pin 1-2

� RESTARDIS: Pin 3-4

� MCRESENA: Pin 5-6

� BIDIEN1 Pin 7-8

Cards with ENU 007 000 000 have X2 linknear bottom edge of card.

Cards with ENU 007 000 000or greater have X2 link near



� BIDIEN2 Pin 9-10



Figure 2-17: ALS link settings for an STM-4 Trib/Traffic card (Photograph)

Figure 2-18: Blow-up of Link Area for STM-4 Trib/Traffic Card

Pin 1-2

ALS



2.5.8 STM-16 Traffic Card Link SettingsALS Link Header X13




� BIDIENA: Pin 7-8

2.5.9 STM-16 Core Card Link Settings

Figure 2-19:STM-16 Core Card Link Settings

ENALSDIS: Pin 1-2

RESTARDIS: Pin 3-4

MCRESENA:



2.5.10 Flexible STM-1/4 Traffic Card (SFP Based) – 8 Port and 16Port VersionNote: The Card and LTU also has BIDIENA links for use when working in Single

Fibre Working mode.

Link Header ALS_LNK




� BIDIENA: Pin 7-8

Link Header BIDI_LNK

� STM-1 Port 1 Pin 1-2 (also STM-4 port – on 8P and 16P versions )

� STM-1 Port 2 Pin 3-4

� STM-1 Port 3 Pin 5-6 (also STM-4 port – on 16P version )


� STM-1 Port 5 Pin 9-10 (also STM-4 port – on 8P and 16P versions)


� STM-1 Port 7 Pin 13-14 (also STM-4 port – on 16P version )


Note: Pin 1 of each link header is marked as indicated by the lines below.



Figure 2-20: Link Settings for Flexible STM-1/4 Traffic Card

2.5.11 Flexible STM-1/4 Traffic LTULink Header BIDI_ENABLES









Note: Pin 1 of the link header is marked as indicated by the line below.



Figure 2-21: Link Settings for Flexible STM-1/4 LTU

BID



2.5.12 Management and Sync LTU Link SettingsOn this unit there are switches to allow selection of different impedances.

There are two balanced and two-unbalanced synchronisation input ports, individuallyswitch selectable between 75� and High impedance or 120 � and High impedance.

Switches 1 and 2 (marked with arrows) need to be adjusted to change the impedance.

Figure 2-22: Management and Sync LTU

UnbalancedInput

Balanced Input

Unbalanced Input

Balanced Input

Channel 2 Input Impedance

Channel 1 Input

SW10

Output Coupling Settings



Table 2-9: Switch settings for Management & Sync LTUSync Channel Switch Switch Function

Channel 1 Input Impedance Switch 1-1 ON = Balanced (120 ohm)

OFF = High Impedance (HiZ)

Switch 1-2 ON = Unbalanced (75ohm)


Channel 2 Input Impedance Switch 2-1 ON = Balanced (120 ohm)OFF = High Impedance (HiZ)

Switch 2-2 ON = Unbalanced (75 ohm)


Channel 1 Output Coupling Settings Switch 100-1 ON = DC Coupling

OFF = AC Coupling

Channel 2 Output Coupling Settings Switch 100-2 ON = DC Coupling

OFF = AC Coupling

2.5.13 Power LTU Link SettingsThere is a link to select 0V connected to earth.

Link open : - 0V not connected to chassis earth.

Link closed :- 0V connected to chassis earth.

2.5.14 Alarms and Aux LTUThere are four link settings which select the local alarm scheme operation between"Bw7R" and "T.I.". 4 Links are fitted to the header LK10 to provide the defaultbehaviour (BWZR) for the local alarm scheme. These are fitted before shipping theLTU.

If the T.I alarm scheme is required, then the 4 links need to be moved from LK10 toLK2.

The Pinout of the 15-way D type connector is altered as follows.

+S

+S

+S

a

el

unused

Za(A)

GND

-S

-S

-S

b

unused

Za(B)

Za(LE)

Bw7R

+V Service

+V Service

+V Service

SUM

REM

INT URG

EXT URG

GND

-V Service

-V Service

-V Service

unused

INT NURG

EXT NURG

WARNING (IND)

Telecom Italia



Figure 2-23: Link settings for the Alarms & Aux LTU

Fit 4 off links to LK10 only for BW7R operation

Fit 4 off links to LK2 only for T.I operation



2.5.15 Ethernet 100M LTU SFP Link Settings

Figure 2-24:Schematic and Picture of Ethernet 100M LTU Link Settings

SETTINGSCONNECTOR

JTAGCONNECTOR

ALSDISMCZRESENARESTARDISNOT USED

SETTINGSCONNECTOR

JTAGCONNECTOR



2.5.16 Card InstallationCards should be inserted into correct shelf positions. Card complement will vary witheach contract. Refer to Section 2 for examples of the Shelf layouts.

2.5.17 Power Supply & Rack Alarm ChecksDuring commissioning tests references are made to RAUs and EOSs, these may beignored if an external alarm scheme (Bw7R) is not used.

2.5.17.1 DC Powered Rack

WARNING! DUPLICATE POWER FEED

This equipment is supplied with more than one DC power feed. To isolate, bothfeeds must be disconnected.

Given the wide tolerance of the possible primary supply voltage. Which can vary i.e. (-40.5V to –75V operating range). The total supply current for any rack will depend onthe input voltage:

1 Check that the End Of Suite fuses at the Distribution Board, the fuses/circuitbreakers of the OMS1664 shelf’s Power Supplies, & Fan Tray fuse/circuitbreaker, are removed or switched OFF (as appropriate).

2 Ensure that the shelf Power LTU connectors are disconnected from the shelf,& confirm that the alarm ribbon connectors to the external alarm scheme (ifprovided) are inserted into the correct shelf connector.

3 Confirm that the End Of Suite fuses at the Distribution Board, the fuses/circuitbreakers of the OMS1664 shelf’s Power Supplies, & the Fan Tray fuse/circuitbreaker, are correctly rated. If in any doubt the Engineer should contactMarconi support.

4 Confirm that fuses/circuit breakers labelling is correct.

5 Check that the two shelf power connectors are wired correctly, refer to thePower LTU connector drawing below:-

6 At the Distribution Board, insert the End of Suite fuse for the SMA powerSupply 1 and measure the voltage present at the racktop. This should lie in therange -40.5 –75V dc, nominal –48V dc.



Figure 2-25: Power Connectors

7 Fit the subrack power connector to Power LTU PSA, insert the Racktop fuse orturn ON the Circuit Breaker for Power Supply 1 and confirm that, on the PowerLTU “PSA” in slot 19, the Green LED is lit.

Note: The Comms/Controller card has a dedicated PSU powered directly from thesubrack power supply. At this point the card will begin it’s initial power up,indicated by the AMBER led flashing.

8 Repeat (5) & (7) for Power Supply 2/Power LTU “PSB” in slot 20.

9 If an external alarm scheme is connected, confirm that the appropriate PowerFail alarms are generated. It should not be possible to acknowledge thesealarms

2.5.17.2 Application of Power

Note: The shelf is powered from duplicated power connectors from a nominal –48vdc feed.

Note: The supplies must NOT be switched OFF while the AMBER LED on the CCUcard is flashing, as this may corrupt the Controller’s EEPROM data.

Note: The two supplies MUST NOT be switched between the On/Off states in rapidsuccession as such action can cause a ‘Laser Trip’ condition on the OpticalCards

1 Whilst the CCU Card is executing it’s start up sequence, the AMBER LED willflash. This will take up to 4 minutes, when completed it will then remain lit, thiswill indicate that the Comms/Controller has finished it’s start up sequence.

2 Any shelf alarms present at this stage should be disregarded.

3 Immediately after power-up, the sub-rack cards will undergo an initialisationperiod controlled by the CCU (Comms/Controller) card. During this period, it isnormal for a number of the card LEDs to flash on and off. This process stopswhen the CCU (Comms/Controller) card has completed its initialisation cycle.

A1

A2

A3

Shelf Ground

-VE Battery

+VE Battery



4 Turn ON the Fan Tray circuit breaker or fit it’s rack top fuse (as appropriate).Check that the fan tray is operating correctly.

2.6 Local Craft Terminal Installation InformationThe LCT is compatible with Windows 2000 and Windows XP operating systems.

The LCT can only be installed by a user with either administrative or elevatedprivileges. This is because installations access the Windows registry and WindowsSystem folders.

� To ensure that the LCT is available to any user who logs on to the PC, itshould be installed by a user with administrative access privileges (e. g.Administrator).

� Installation as a non-administrative user (with elevated privileges) shouldonly be carried out to comply with a “users specific” deployment policy.

To install the LCT, first insert the CD-ROM into the CD drive. The set-up instructionsare given below:

� Invoke Windows

� Select Windows Explorer and view the CD drive.

� Select the Local Craft Terminal (LCT) directory, and execute “setup.exe”.

� The user is then guided through the installation process.

The LCT is launchable by one of the following methods:

� Double-clicking the icon on the Windows desktop.

� Selecting Programs > Marconi Local Craft Terminal from the Start Menu



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