total reach ocu r info

® Section 61292023L5-5AIssue 1, May 2004

CLEI Code: D4OIKXU8_ _

CONTENTS1. General........................................................................................ 12. Installation .................................................................................. 33. Testing ........................................................................................ 64. Control Port Operation................................................................ 95. Remote Provisioning And Diagnostics..................................... 206. Deployment Guidelines ............................................................ 207. Maintenance.............................................................................. 218. Specifications............................................................................ 219. Warranty and Customer Service ............................................... 21

FIGURESFigure 1. ADTRAN Total Reach OCU-R.................................... 1Figure 2. Total Reach DDS Circuit Diagram............................... 2Figure 3. ADTRAN Total Reach OCU-R.................................... 3Figure 4. Option Switch ............................................................... 3Figure 5. Circuit Card Pin Assignments....................................... 5Figure 6. Signal Loss Indication .................................................. 6Figure 7. DDS Trouble Codes...................................................... 7Figure 8. DDS Trouble Codes...................................................... 8Figure 9. Total Reach OCU-R Remote End Initiated

Loopback, Local Loop.................................................. 8Figure 10. Total Reach OCU-R Remote End Initiated

Loopback, Customer Loop............................................ 8Figure 11. DB-9 Cable Side Pin Assignments ............................... 9Figure 12. Total Reach DDS Main Menu .................................... 10Figure 13. Provisioning Menu...................................................... 11Figure 14. System Status Menu.................................................... 12Figure 15. Total Reach Detailed Status Menu ............................. 12Figure 16. Loopbacks Menu......................................................... 13Figure 17. Performance Monitoring Menu................................... 14Figure 18. 15-Minute Performance Monitoring Screen ............... 15Figure 19. 24-Hour Performance Monitoring Screen ................. 15Figure 20. Frame Relay 15-Minute Performance

Monitoring Screen ...................................................... 16Figure 21. Frame Relay 24-Hour Performance

Monitoring Screen ...................................................... 16Figure 22. Event Log Screen........................................................ 17Figure 23. Circuit ID Screen ........................................................ 18Figure 24. Set Date and Time Screen........................................... 18Figure 25. ADTRAN Information Screen.................................... 19Figure 26. Terminal Modes Menu................................................ 19

TABLESTable 1. Total Reach Part Numbers ............................................ 2Table 2. Protected Loopback Mode Requirement

T1E1.2/99-007R1 (Latching Loopback)....................... 4Table 3. Wiring Connections ...................................................... 5Table 4. Compliance Codes ........................................................ 5Table 5. LED Indicators.............................................................. 5Table 6. Alternating Loopback Sequences ................................. 6Table 7. Latching Loopback Sequences ..................................... 6Table 8. Cable Type and Temperature Loss Data @ 13.3 kHz .. 7Table 9. Total Reach DDS Insertion Loss Measurements ........ 20Table 10. Total Reach OCU-R Specifications ............................ 21

61292023L5-5A Trademarks: Any brand names and produtrademarks, registered trademarks, or t

Figure 1. ADTRAN Total Reach OCU-R

1. GENERALThis practice is an installation and maintenance guide for the ADTRAN System Name® Total Reach OCU-R For Outside Plant All Rate DDS Termination Unit (Total Reach OCU-R). Figure 1 illustrates the Total Reach OCU-R (P/N 1292023L5) front panel.

1292023

SYNC

CRC

NODSU

AP

NTWKLBK

SC

64

56

19.2

9.6

4.8

2.4

LBK

OCU-R

CUSTLBK

2 WIRE

Total Reach OCU-R For Outside Plant All Rate DDS Termination UnitInstallation and Maintenance Practice

1ct names included in this document are rade names of their respective holders.

Revision HistoryThis is the initial issue of this practice. Future changes to this documentation will be explained in this subsection.

DescriptionThe ADTRAN Total Reach OCU-R is a span-powered termination unit designed to deliver data rates up to 64 kbps and provide testing functionality at the customer premises. Used in combination with the Total Reach DDS-DP unit, the Total Reach OCU-R converts the 2-wire Total Reach signal to the traditional 4-wire DDS signal for presentation to the customer. The Total Reach OCU-R is an auto-rate adaptive digital network interface located at the customer premises point of demarcation. The OCU-R will deliver a standard four-wire signal up to 18 kft beyond the OCU-R. Both customer and network interfaces are equipped with outside plant lightning protection. The customer interface is capable of receiving signals attenuated to –45 dB at the NyQuist frequency of four-wire AMI DDS. In addition to terminating the 2-wire extended range signal, the Total Reach OCU-R functions as a regenerative loopback device supporting Telco-generated testing. The Total Reach OCU-R unit is available in T200 mechanics, and may be optioned for 0 dB or -10 dB output toward the customer. Figure 2 illustrates the Total Reach DDS circuit diagram.

NOTEThe Total Reach OCU-R unit must be usedwith an appropriate Total Reach DDS-DP unit.

Figure 2. Total Reach DDS Circuit Diagram

FeaturesThe basic features of the System Name Total Reach OCU-R, include the following:

• Two-wire deployment• Repeaterless operation• Bridged tap tolerant

T-Carrier

Channel Bank

2-Wire Loop

4-Wire CustomerInterface

DSU/CSUTROCU-R

TRDDS

DPT/R Pair

Customer Premises

2 Issue 1, M

• Span-powered• DB-9 craft interface access for provisioning,

testing, and performance monitoring• Frame IQ provides physical layer and Frame Relay

PM• ADS-6 provides in-band PM access• Protected Loopback prevents false latching

loopback at 64 kbps• Auto-rate adaptation on subrates, 19.2 and 56 kbps

rates, including secondary channel, and 64 kbps clear channel capability

• LED indicators for SYNC, CRC, Service Rate, NTWK Loopback, CUST Loopback, and Alternate Provisioning

• T200 mechanics• Signal-level indication during synchronization• Extended range on customer interface up to 18 kft

or 45 dB• Sealing current of 12 mA on four wire customer

interface

Part NumbersTable 1 identifies the different ADTRAN Total Reach products.

Table 1. Total Reach Part Numbers

Part Number Description

1291004L1 D4 Total Reach OCU DDB

1291004L2 D4 Total Reach DDS DDB

1292006L1 D4 Total Reach DDS

1292006L3 D4 Total Reach DDS DP w/Craft Port

1292006L4 D4 Total Reach DDS DP w/Craft Port

1433105L1 Series 5 Total Reach DDS DP




1410105L2 DE-4 Total Reach DDS DP

1430105L2 D448 Total Reach DDS DP

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2. INSTALLATION

After unpacking the System Name Total Reach OCU-R, inspect it for damage. If damage has occurred, file a claim with the carrier, then contact ADTRAN Customer Service. Refer to the Warranty and Customer Service section for further information. If possible, keep the original shipping container for returning the Total Reach OCU-R for repair or for verification of shipping damage.

Shipping ContentsThe contents include the following items:

• Total Reach OCU-R For Outside Plant All Rate DDS Termination Unit

• Total Reach OCU-Remote For Outside Plant Job Aid

CAUTIONElectronic modules can be damaged by ESD.When handling modules, wear an antistaticdischarge wrist strap to prevent damage toelectronic components. Place modules inantistatic packing material when transportingor storing. When working on modules, alwaysplace them on an approved antistatic mat that iselectrically grounded.

WARNING• Never install telephone wiring during a

lightning storm.• Never install telephone jacks in wet locations

unless the jack is specifically designed for wet locations.

• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

• Total Reach DDS-CO unit normally provides –130 V of span-powering voltage to the Total Reach OCU-R.

C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

61292023L5-5A Issue 1, M

CAUTIONEnsure ground continuity exists between theunit, the housing, and a known approvedground source.

OptionsThe Data Rate is automatically configured from the Total Reach DDS CO unit. The Total Reach OCU-R has a single position, board mounted DIP switch (Figure 3).

Figure 3. ADTRAN Total Reach OCU-R

When 0 dB is selected on SW1 (Figure 4), the unit will transmit a 0 dB AMI signal across the 4-wire customer interface toward the DSU/CSU. When –10 dB is selected, the unit will transmit a –10 dB AMI signal toward the DSU/CSU.

Figure 4. Option Switch

��

1292023

SYNC

CRC

NODSUAP

NTWKLBK

SC

64

56

19.2

9.6

4.8

2.4

LBK

OCU-R

CUSTLBK

2 WIRE

��

ON10 dB -10 dB

SW1

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DDS LoopbackThe Total Reach OCU-R works in conjunction with the Total Reach DDS CO unit in response to network initiated latching and non-latching loopback sequences.

Latching LoopbacksThe OCU-R will respond to OCU and NIE latching loopback sequences at all rates including 64 kbps.

Non-Latching LoopbacksThe OCU-R will only respond to OCU non-latching loopbacks at 56 kbps and all sub-rates.

• Upon receipt of an OCU or NIE loopback, the OCU-R will initiate a loopback towards the network.

• Upon receipt of a CSU loopback, the OCU-R will reverse Tip and Ring sealing current polarity towards the 4-wire DDS interface.

Legacy latching and non-latching loopbacks are defined in TR 62310 and ANSI T1.107.

False Loopback ImmunityADTRAN’s protected loopback family of channel units include an algorithm compatible with SARTS, Hekimian, TPI, and other test systems that virtually eliminates false latching loopback occurrences. This algorithm is always enabled at 64 kbps. In addition, ADTRAN’s protected loopback family features a protected loopback mode for further false latching loopback protection.

Protected LoopbackProtected loopback prevents false latching loopbacks when the latching loopback sequence is embedded in customer payload data. At 64 kbps, the Total Reach OCU-R will respond to the legacy latching loopback sequence defined in TR 62310 and ANSI T1.107, or the protected loopback sequence defined in T1E1.2/99-007R1.

When the Total Reach DDS CO unit is provisioned for protected loopback, the idle code preamble must be sent prior to an OCU, CSU, or NIE latching loopback sequence, otherwise the Total Reach OCU-R will not respond.

Test equipment should support T1E1.2/99-007R1 to perform testing at 64 kbps when protected loopback is enabled. Table 2 details the latching loopback sequence requirement when protected loopback is enabled.

4 Issue 1, M

Minimum of 35 TIP bytes required to disable established latching loopback.x = Don't care bit

WiringThe Total Reach OCU-R can be housed in any standard T200/T400 shelf or standalone housing, such as ADTRAN T200/T400 Single Mount Housing, part number 1212007L1.

Connections are made using screw-down connectors on the terminal strip located at the rear of the housing. Figure 5 illustrates the circuit card pinout and Table 3 shows the wiring designations for the Total Reach OCU-R.

The unit should be wired as follows:

• Network pair to terminal strip TR and TT positions• To Customer and From Customer pairs through

customer 8-pin modular connectororTo Customer (DRT, DRR) and From Customer (DTR, DTT) to designated terminal strip positions

No rate selection is necessary for the Total Reach OCU-R.The unit automatically adapts to the service rate of the Total Reach DDS CO unit.

Table 2. Protected Loopback Mode Requirement T1E1.2/99-007R1

(Latching Loopback)

Sequence Function

Byte Code Number of Received Bytes

Exit data protocol

Idle - 11111110 Minimum of 35 Idle bytes

Clear existing loopbacks

Transition in progress (TIP) X0111010

Minimum of 35 TIP bytes

Identify device to be looped

Loopback select code (LSC)X1010101 - OCUX0110001 - CSUX1000001 - NIE

Minimum of 35 LSC bytes

Prepare to loop; send MAP code after 30 bytes

Loopback enabled (LBE)X1010110

Minimum of 100 LBE bytes

Activate loopback

Far-End voice (FEV)X1011010

Minimum of 32 FEV bytes

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Figure 5. Circuit Card Pin Assignments

ComplianceTable 4 shows the Compliance Codes for the Total Reach OCU-R. The Total Reach OCU-R complies with the requirements covered under UL 60950 and is intended to be installed in an enclosure with an Instal-lation Code (IC) of “B” or “E.” The Total Reach OCU-R is intended for installation in restricted access locations only.

Front Panel LEDsThe Total Reach OCU-R Access Module provides front panel LEDs to display status information. The front panel LEDs and their indications are detailed in Table 5.

Table 3. Wiring Connections

Pair Terminal Strip

Designations

T400 Pin Number

Customer RJ-48

To/From Customer

TTTR

4147

To Customer

(Rx)

DRTDRR

515

78

From Customer

DTRDTT

4955

12

Table 4. Compliance Codes

Code Input Output

Power Code (PC) C C

Telecommunication Code (TC) X –

Installation Code (IC) A –

Frame Ground

(TT) (DTT)

(TR) (DTR)

(DRT)

Total Reach OCU-R

15 (DRR)

11

27

5

FromCustomer

To Customer

To Network

41 55

47

1

17

49

61292023L5-5A Issue 1, M

Table 5. LED Indicators

LED State Description

SYNC Red Indicates that there is no sync between the TR DDS CO unit and the remote TR OCU-R; check for continuity, load coils, and other abnormal line conditions. GREEN indicates loop synchronization.

CRC On Indicates that there are errors on the 2-wire loop; check for abnormal loop conditions.

NODSU

On Indicates the absence of the customer DSU/CSU as determined by the TR OCU-R.

AP On Indicates that the unit has been remotely provisioned;

Flashing Indicates that the remote control link is active. Push and hold the LBK button for 5 seconds to toggle between manual and remote provisioning.

NTWK LBK

On Indicates a loopback toward the network exists at the TR OCU-R.

Flashing Indicates the TR OCU-R has requested a CSU loopback toward the network. This condition only occurs during alternating or latching CSU loopbacks.

CUST LBK

On Indicates a loopback toward the customer exists at the TR OCU-R.

Flashing Indicates a loopback toward the customer at the TR DDS CO unit.

SC On Indicates the Secondary Channel is enabled

64 On Indicates the 64 kbps data rate is enabled

56 On Indicates the 56 kbps data rate is enabled

19.2 On Indicates the 19.2 kbps data rate is enabled




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Signal MeterThe Total Reach OCU-R contains an LED indication signal meter that approximates the amount of dB loss on the Total Reach DDS loop at 13.3 kHz (135 ohms termi-nation), the Nyquist frequency of Total Reach DDS. The signal meter on the Total Reach OCU-R may be used to verify that the loop loss is actually within Total Reach DDS deployment guidelines without the requirement of peripheral test equipment. The signal meter is activated automatically upon power up during the Total Reach DDS training sequence and remains activated until synchronization occurs (usually 30 to 90 seconds after power-up). If the signal meter only illumi-nates the 2.4 LED, then the loop loss is too great for Total Reach DDS deployment. If the signal meter illuminates 2.4 and 4.8 (only two LEDs), then the Total Reach DDS loop loss is between 50 dB and 56 dB and the loop is considered marginal for Total Reach DDS deployment. If three or more rate LEDs are illuminated during Total Reach DDS train-up, then the circuit is considered to be within Total Reach DDS deployment guidelines.

A translation of the signal meter loss ranges in dB is shown in Figure 6. If the loop loss indicates a marginal loop for Total Reach DDS deployment, then a more precise loop loss measurement can be made with the appropriate test equipment.

Figure 6. Signal Loss Indication

3. TESTINGLoopback TestingLoopback tests can be performed from the Central Office (CO) to verify proper loop and Total Reach OCU-R operation. The Total Reach OCU-R provides a network loopback in response to a network initiated alternating or latching OCU loopback, or NIE loopback, dependent upon the installed Total Reach DDS CO unit.

SC

64

56

19.2

9.6

4.8

2.4

0-10

10-20

20-30

30-40

40-50

50-56

>56

LED SIGNAL LOSS (dB)

Sig

nal l

evel

Signal level indicated during synchronization

6 Issue 1, M

The Total Reach OCU-R also provides a sealing current reversal when the CSU loopback command is detected. Alternating loopbacks may be performed at all rates, except 64 kbps Clear Channel. Table 6 details the alter-nating loopback sequences.

X = Don’t care bit.

Table 7 details latching loopback sequences. The Total Reach OCU-R supports testing of the two-wire loop from the remote end when the Total Reach DDS CO unit is performing a bidirectional DS0 or OCU loopback.

Minimum of 35 TIP bytes required to disable established latching loopback.x = Don't care bit

Table 6. Alternating Loopback Sequences

Sequence Function Received Bytes

Active Loopback Four consecutive bytes of specified loopback codeX0101010 - OCUX0101000-CSUX0101100-DSU

Maintain loopback and test bit errors

Data byte alternating with loopback code example:XDDDDDD1/X0101010

Clear loopback Four consecutive data bytes without specified loopback code

Table 7. Latching Loopback Sequences

Sequence Function

Byte Code Number of Received Bytes

Clear existing loopbacks

Transition in progress (TIP)X0111010

Minimum of 35 TIP bytes

Identify device to be looped

Loopback select code (LSC)X0000101 - DS0X1010101 - OCUX0110001 - CSUX1000001 - NIE

Minimum of 35 LSC bytes

Prepare to loop; send MAP code after 30 bytes

Loopback enabled (LBE)X1010110

Minimum of 100 LBE bytes

Activate loopback

Far-End voice (FEV)X1011010

Minimum of 32 FEV bytes

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Table 8 describes cable loss for the Total Reach DDS Nyquist frequency of 13.3 kHz.

Total Reach DDS Trouble CodeThe Total Reach DDS system provides a quick diagnosis in the case of a circuit condition where conti-nuity is broken. The trouble code type received by a tester determines whether the open condition is occurring on the 2-wire local loop or at the customer premises. In the event of a 2-wire DSL loss of signal, loss of sync, or open condition caused by an open conductor or disconnected 2-wire loop, the Total Reach DDS CO unit will transmit towards the network one of two trouble codes. The trouble code is dependent on the installed Total Reach DDS CO unit, but will be either a Mux-Out-of-Sync (MOS 9Ah), or alternating MOS and Abnormal Station Code (ASC 9Eh). During similar Out-of-Service condition of the 4-wire interface on the customer premise, the Total Reach OCU-R, transmits an ASC towards the network. Figure 6 depicts the two Out-of-Service conditions.

During a similar Out-of-Service condition at the customer premises, the Total Reach OCU-R transmits upstream into the network as shown in Figure 7.

61292023L5-5A Issue 1, M

Figure 7. DDS Trouble Codes

Dual Function LBK Button (SW2)The Total Reach OCU-R contains a recessed, front panel mounted momentary-action pushbutton (LBK) that allows for initiating loopbacks from the OCU-R, as well as toggling between hardware and software options settings. The local test capabilities allow for both local loopback of the OCU-R, as well as looping back the Total Reach DDS CO unit without test equipment, dumb terminal, or centralized test coordination.

Pressing the button for 5 seconds or longer will change the option settings between the hardware (DIP switch) and the software provisioned settings.

ASC 9Eh

MOS 9Ah

Channel Bank

TRCOUnit

TROCU-R DSU/CSU

Open 4-Wire Customer Interface

Customer Premisesor

Outside Plant

Channel BankOpen

2-Wire Loop

TRCOUnit

TROCU-R DSU/CSU

4-Wire CustomerInterface

Customer Premisesor

Outside Plant

Table 8. Cable Type and Temperature Loss Data @ 13.3 kHz

Plastic Cable dB Loss/kft Paper Cable dB Loss/kft

19 Gauge PIC (0° F)19 Gauge PIC (70° F)19 Gauge PIC (120° F)

0.53020.60830.6610

19 Gauge PULP (0° F)19 Gauge PULP (70° F)19 Gauge PULP (120° F)

0.56160.64150.6955


0.9121.02581.1015


0.94541.06061.1370


1.25711.39821.4917


1.29001.43241.5268


1.67511.84691.9608


1.68231.85681.9718

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Total Reach DDS Central Office Unit Bidirec-tional Loopback SupportThe Total Reach DDS CO Unit will execute a bidirec-tional loopback when responding to a DS0 or OCU loopback, depending on the which CO unit is installed. This allows a standard portable DDS test set, connected to the 4-wire customer interface of the Total Reach OCU-R, to verify the integrity of the two-wire loop by transmitting a test pattern and examining the returning data for synchronization and errors. The Total Reach DDS CO unit NTWK LBK and CUST LBK LEDs will illuminate during a DS0 DP bidirectional loopback. The bidirectional loopback is illustrated in Figure 8.

Figure 8. DDS Trouble Codes

DDS-DP

Bidirectional Loopback

CustomerIntra-office

8 Issue 1, M

Remote End Initiated LBK TestsThe Total Reach DDS CO unit supports loopbacks generated from the Total Reach OCU-R which allow testing to be performed without coordination with the CO or test center. Loopbacks initiated by the Total Reach OCU-R front panel LBK pushbutton, aid in system turn up testing or troubleshooting from the remote end.

The Total Reach DDS CO unit will respond to a loopback command initiated at the Total Reach OCU-R as follows:

Pressing the Total Reach OCU-R LBK pushbutton once will initiate a loopback at the Total Reach DDS -CO unit toward the customer (Figure 9). This allows data to be sent from the remote end to test the local loop and the Total Reach OCU-R. This loopback is indicated by a flashing CUST LBK LED on the Total Reach OCU-R and a solid CUST LED on the Total Reach DDS-CO unit.

Pressing the Total Reach OCU-R LBK pushbutton a second time initiates a loopback at the Total Reach OCU-R toward the 4-wire DDS (CPE) interface. A solid CUST LBK LED on the Total Reach OCU-R indicates a loopback at the Total Reach OCU-R toward the customer equipment (Figure 10). Pressing the LBK pushbutton a third time disables all current latching loopbacks initiated by the Total Reach OCU-R LBK pushbutton.

Figure 9. Total Reach OCU-R Remote End Initiated Loopback, Local Loop

Figure 10. Total Reach OCU-R Remote End Initiated Loopback, Customer Loop

4-WireCPE Interface

TROCU-R

Push once for TR DDS-DP Loopback

Local Loop

ASC 9Eh TRDDSCO Loopback

Pushbutton

TestSet

4-WireCPE Interface

TROCU-R

Push twice for TR OCU-R Loopback

Local Loop

ASC 9Eh TRDDSCO Loopback

Pushbutton

TestSet

ASC 9Eh

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If errors exist the loopbacks can help determine the source; either the local loop or the Total Reach OCU-R. During a remote end initiated loopback the Total Reach system transmits ASC 9Eh towards the network, indicating an out-of-service condition generated by the remote end, as shown in Figure 9 and Figure 10.

All Total Reach system latching loopbacks, whether initiated by the craft interface, LBK push-button, CO, or from a remote Test Center, may be disabled by sending 35 DDS loop down TIP bytes <X0111010> (Where “X” is a “don’t care bit”). All existing latching loopbacks may also be disabled by pressing the LBK pushbutton on the CO or remote units.

4. CONTROL PORT OPERATIONThe Total Reach OCU-R provides a front panel DB-9 connector that supplies an RS-232 interface for connection to a controlling terminal. The pinout of the DB-9 is illustrated in Figure 11.

Figure 11. DB-9 Cable Side Pin Assignments

The terminal interface operates at data rates from 1.2 kbps to 19.2 kbps. The asynchronous data format is fixed at 8 data bits, no parity, and 1 stop bit. The supported terminal type is VT100 or compatible.

NOTEWhen conducting a Terminal Session, alwaysselect VT100 mode in the settings menu priorto making the craft connection.

NOTEIf using a personal computer with terminalemulation capability, disable all power savingprograms. Otherwise, communication betweenthe PC and the Total Reach OCU-R may bedisrupted, resulting in misplaced characters orscreen time outs.

6

7

8

9

1

2

3

4

5

TXD (Transmit Data)

RXD (Receive Data)

SGN (Signal Ground)

61292023L5-5A Issue 1, M

OperationThe Total Reach OCU-R is ready for synchronization and operation upon insertion in the shelf or housing. When synchronized, terminal sessions provide access to screen menus for provisioning, monitoring, testing, or obtaining performance history. Terminal session screen access is available at any time during operation. The screens shown in this practice identify the main menu screens; subordinate screens are not depicted.

AbbreviationsAbbreviations used in the screen diagrams are explained below:

• ES (Errored Seconds): A count of the number of seconds in which at least one code violation was detected on a digital circuit.– Total Reach Interface (DSL): Second in which a

CRC error occurs– Customer DDS Interface: Second in which an il-

legal bipolar violation occurs• UAS (Unavailable Seconds): A count of the

number of seconds that a circuit or path is not avail-able.– Total Reach Interface (DSL): Will accumulate

upon the loss of loop synchronization or the oc-currence of 7 errored seconds in a period of 20 seconds. UAS will stop accumulating upon the occurrence of 30 consecutive non-Errored Sec-onds

– DDS Customer Interface: Will accumulate upon the loss of sealing current (LOOP OPEN), loss of receive signal (LOS), loss of secondary channel framing (LOF), or when the illegal bipolar viola-tion error rate is >1E-3 for at least 10 seconds. UAS will stop accumulating upon the occurrence of 10 consecutive non-Severely Errored Seconds

• BPV (Illegal Bipolar Violation)– DDS Customer Interface: Two consecutive puls-

es of the same polarity or violation received that does not alternate in polarity with respect to the prior violation

• INV (Invalid Frame Relay Frame)– Any frame with a CRC error– Any frame containing fewer than five octets– Any frame containing more than 8191 octets– Any frame that does not contain an integral num-

ber of octets– Any frame containing a frame abort

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• FECN (Forward Explicit Congestion Notification)– Count of frames in which the Forward Explicit

Congestion Notification bit was set– Indicates congestion in the Frame Relay network

but does not isolate cause or location of conges-tion

• BECN (Backward Explicit Congestion Notification)– Count of valid frames in which the Backward

Explicit Congestion Notification bit was set– Indicates congestion in the Frame Relay network

but does not isolate cause or location of conges-tion

• LMI (Local Management Interface)– Local Management Interface (LMI) status is a

monitor of the heart beat between the Frame switch and the CPE

– Recognizes FRF (Annex A), ANSI T1.617 An-nex D, and ITU T.933A Frame Relay interfaces

– Network and Customer LMI counts should be equal if everything is ok between the Frame switch and the CPE

10 Issue 1, M

– Maintains counts of LMI status messages moni-tored by the Total Reach Interface, which are sent by the Frame Relay switch

– Maintains counts of LMI status inquiry messages monitored at the DDS Interface which are sent by the Frame Relay CPE

• %UT (Frame Relay Percent Utilization)– The average percent utilization over the DS0

channel• LBO (Line Buildout)

Latching Loopback TimeoutWhen provisioned for Loopback Timeout enabled, the Total Reach OCU-R will release the latching loopback after 120 minutes returning the system to normal operation.

Terminal SessionsA terminal session is initiated upon insertion of a DB-9 connector to the Total Reach OCU-R front panel craft port. Upon terminal connection, press the spacebar several times to access the screens. Once the speed has been determined, the Main Menu (Figure 12) appears.

Figure 12. Total Reach DDS Main Menu

CIRCUIT ID:Adtran Total Reach DDS 01/01/04 00:03:36

Adtran Total Reach DDS Main Menu

1. Provisioning 2. Status 3. Loopbacks 4. Performance Monitoring 5. Event Log 6. Set Circuit ID 7. Set Date and Time 8. Adtran Information 9. Terminal Modes

Selection:

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MenusThe following sections explain the submenu screens that are accessed from the Total Reach DDS Main Menu.

ProvisioningThe Provisioning menu (Figure 13) for the Total Reach OCU-R allows for remote verification of the system’s provisioning, as well as the ability to change provisions to correct inappropriate settings found during circuit turnup or trouble shooting.

61292023L5-5A Issue 1, M

The AP LED will be on for both the OCU-R and the Total Reach DDS CO unit when the Total Reach System has been software provisioned. Any changes initiated from the OCU-R should be coordinated with CO personnel.

Figure 13. Provisioning Menu


Provisioning ----------------------------------------- 1) Rate = 56 kbps 2) Secondary Channel = Disabled 3) Error Correction = Disabled 4) Zero Code Suppression = Disabled 5) Latching Loopbacks = Enabled 6) AB Signaling = Disabled 7) Quality Monitor = Disabled 8) Bank Type = D4 Bank 9) Loopback Timeout = Disabled 10) OCU-R LBO to Customer = -10 dB 11) OCU-R NEI Loopback = Disabled 12) Help Menu ----------------------------------------

Selection:

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StatusThe Status screens (Figure 14 and Figure 15) provide quick access to Total Reach DDS CO unit and Total Reach OCU-R status information.

12 Issue 1, M

The Status screens provide assistance with problems detected by the Total Reach DDS CO unit and OCU-R units.

Figure 14. System Status Menu

Figure 15. Total Reach Detailed Status Menu


System Status Screen

Channel Bank ATTENUATION DDS Loop ____________ <--------- 0-10dB -------> ____________ | DDS-DP | | OCU-R | | | | |------> | | | | | | | | | | | | NETWORK| |<001------------------000>| |CUSTOMER | | | | | |20 ------ MARGIN ------ 20| | ATTEN | | | | 00dB | | | |<------ |____________| |____________|

1. Legend 2. Detailed Status 3. Troubleshooting

Selection:


TOTAL REACH RECEIVER DATA

DDS-DP OCU-R (CUST) (NET) -------- ------- MARGIN: 20 20 ES 15MIN: 001 000 UAS 15MIN: 202 142 CRC 15MIN: 00002 00002 LOOP ATTENUATION: <--- 0-10dB --> DSL ALARMS: < NONE >

CUSTOMER DDS RECEIVER DATA

ES 15MIN: 000 UAS 15MIN: 151 ILL BPV 15MIN: 00433 CUSTOMER ALARMS: NONE LOOP ATTENUATION: 00dB

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LoopbacksThe Loopbacks display (Figure 16) allows loopback testing to be initiated or terminated while graphically displaying the testing status of the Total Reach system.

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Figure 16. Loopbacks Menu


LOOPBACKS

Channel Bank DDS Loop ____________ ____________ | DDS-DP | | OCU-R | | | | |------> | | | | | | | | | | | | NETWORK| |<------------------------>| |CUSTOMER | | | | | | | | | | | | | | | |<------ |____________| |____________|

1. DDS-DP Bidirectional Loopback 2. OCU-R Network Loopback 3. Deactivate Loopback

Selection:

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Performance MonitoringAt the top right corner of the Performance Monitoring screen the time display indicates the current time. At each 15-minute interval, the performance information is transferred to the 15-minute performance data registers accessed from the Performance Monitoring screen. All 15-minute performance data registers are available for the last 25 hours. At each 24-hour interval, the perfor-mance data is transferred into the 24-hour performance data register also accessed using this screen. The Perfor-mance Monitoring screens are shown on Figure 17 and continue through Figure 21.

14 Issue 1, M

Clearing PM and Event Log RegistersSelect the Clear Performance Statistics menu item on the Performance Monitoring Screen or the Event Log screen to clear performance data. After the Clear Perfor-mance Statistics option is selected the Warning screen (not shown) displays. At the Warning screen a prompt displays. Press Y for YES to clear performance data, or press N for NO to cancel the request.

Interface OOS Screen EventIn those instances when the interface is out of service (OOS), the performance monitoring screen will show dashes (--- --- ----) for the current time interval. If the interface is OOS for the entire time interval, dashes are displayed instead of data.

Figure 17. Performance Monitoring Menu


Performance Data ----------------------------------------

1. DDS-DP/OCU-R 15-Minute Registers 2. DDS-DP/OCU-R 24-Hour Registers 3. Frame Relay 15-Minute Registers 4. Frame Relay 24-Hour Registers 5. Clear Performance Statistics

Selection:

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Figure 18. 15-Minute Performance Monitoring Screen

Figure 19. 24-Hour Performance Monitoring Screen

CIRCUIT ID:Adtran Total Reach DDS 01/01/04 00:15:44 DDS-DP/OCU-R 15-Minute Registers DDS-DP OCU-R OCU-R TOTAL REACH LOOP TOTAL REACH LOOP DDS LOOP -ES-UAS--CRC- -ES-UAS--CRC- -ES-UAS--BPV- 000 000 00000 000 000 00000 000 000 00000 00:15 000 000 00000 00:15 000 000 00000 000 000 00000 00:00 000 000 00000 00:00 000 000 00000 000 000 00000 23:45 000 000 00000 23:45 000 000 00000 000 000 00000 23:30 000 000 00000 23:30 000 000 00000 000 000 00000 23:15 000 000 00000 23:15 000 000 00000 000 000 00000 23:00 000 000 00000 23:00 000 000 00000 000 000 00000 22:45 000 000 00000 22:45 000 000 00000 000 000 00000 22:30 000 000 00000 22:30 000 000 00000 000 000 00000 22:15 --- --- ----- 22:15 --- --- ----- --- --- ----- 22:00 --- --- ----- 22:00 --- --- ----- --- --- ----- 21:45 --- --- ----- 21:45 --- --- ----- --- --- ----- 21:30 --- --- ----- 21:30 --- --- ----- --- --- ----- 21:15 --- --- ----- 21:15 --- --- ----- --- --- ----- 21:00 --- --- ----- 21:00 --- --- ----- --- --- ----- 20:45 --- --- ----- 20:45 --- --- ----- --- --- ----- 20:30 --- --- ----- 20:30 --- --- ----- --- --- -----


DDS-DP/OCU-R 24-Hour Registers

DDS-DP OCU-R OCU-R TOTAL REACH LOOP TOTAL REACH LOOP DDS LOOP -ES----UAS---CRC- -ES----UAS---CRC- -ES----UAS---BPV- 00000 00000 00000 00000 00000 00000 00000 00000 00000 12/31 00000 00000 00000 12/31 00000 00000 00000 00000 00000 00000 12/30 00000 00000 00000 12/30 00000 00000 00000 00000 00000 00000 12/29 00000 00000 00000 12/29 00000 00000 00000 00000 00000 00000 12/28 00000 00000 00000 12/28 00000 00000 00000 00000 00000 00000 12/27 00000 00000 00000 12/27 00000 00000 00000 00000 00000 00000 12/26 00000 00000 00000 12/26 00000 00000 00000 00000 00000 00000 12/25 ----- ----- ----- 12/25 ----- ----- ----- ----- ----- ----- 12/24 ----- ----- ----- 12/24 ----- ----- ----- ----- ----- -----

REVERSED VIDEO = DATA OVERFLOW

* = Contains corrupted 15-minute interval(s)

NOTEThe * indicates that the 24-hour periodcontains at least one 15-minute interval inwhich the interface was continuously OOS.

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Figure 20. Frame Relay 15-Minute Performance Monitoring Screen

Figure 21. Frame Relay 24-Hour Performance Monitoring Screen


Frame Relay 15-Minute Registers TOTAL REACH LOOP DDS LOOP -INV--FECN--BECN---LMI--%UT -INV--FECN--BECN---LMI--%UT 00000 00000 00000 00000 000 00000 00000 00000 00000 000 00:00 00000 00000 00000 00000 000 00:00 00000 00000 00000 00000 000 23:45 00000 00000 00000 00000 000 23:45 00000 00000 00000 00000 000 23:30 00000 00000 00000 00000 000 23:30 00000 00000 00000 00000 000 23:15 00000 00000 00000 00000 000 23:15 00000 00000 00000 00000 000 23:00 00000 00000 00000 00000 000 23:00 00000 00000 00000 00000 000 22:45 00000 00000 00000 00000 000 22:45 00000 00000 00000 00000 000 22:30 00000 00000 00000 00000 000 22:30 00000 00000 00000 00000 000 22:15 00000 00000 00000 00000 000 22:15 00000 00000 00000 00000 000 22:00 00000 00000 00000 00000 000 22:00 00000 00000 00000 00000 000 21:45 00000 00000 00000 00000 000 21:45 00000 00000 00000 00000 000 21:30 00000 00000 00000 00000 000 21:30 00000 00000 00000 00000 000 21:15 00000 00000 00000 00000 000 21:15 00000 00000 00000 00000 000 21:00 00000 00000 00000 00000 000 21:00 00000 00000 00000 00000 000 20:45 00000 00000 00000 00000 000 20:45 00000 00000 00000 00000 000 20:30 ----- ----- ----- ----- --- 20:30 ----- ----- ----- ----- --- 20:15 ----- ----- ----- ----- --- 20:15 ----- ----- ----- ----- ---


Frame Relay 24-Hour Registers

TOTAL REACH LOOP DDS LOOP -INV--FECN--BECN---LMI--%UT -INV--FECN--BECN---LMI--%UT 00000 00000 00000 00000 000 00000 00000 00000 00000 000 12/31 00000 00000 00000 00000 000 12/31 00000 00000 00000 00000 000 12/30 00000 00000 00000 00000 000 12/30 00000 00000 00000 00000 000 12/29 00000 00000 00000 00000 000 12/29 00000 00000 00000 00000 000 12/28 00000 00000 00000 00000 000 12/28 00000 00000 00000 00000 000 12/27 00000 00000 00000 00000 000 12/27 00000 00000 00000 00000 000 12/26 00000 00000 00000 00000 000 12/26 00000 00000 00000 00000 000 12/25 ----- ----- ----- ----- --- 12/25 ----- ----- ----- ----- --- 12/24 ----- ----- ----- ----- --- 12/24 ----- ----- ----- ----- ---

REVERSED VIDEO = DATA OVERFLOW

* = Contains corrupted 15-minute interval(s)

16
Issue 1, May 2004 61292023L5-5A

Event LogThe Event Log (Figure 22) loads and time-stamps Total Reach DDS circuit performance anomalies and threshold violations. This screen is a very useful aid in troubleshooting a chronic circuit. It monitors DSL and DDS sync loss, DSL and DDS open loop, and the Total Reach DDS-DP and Total Reach OCU-R margin. DSL loop signal-to-noise margin is calculated on a numerical scale from 0-20 with 0 approximately equal to a BER of 1 × 10 -6 and 20 equal to a BER of about 1 × 10-9.

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Figure 22. Event Log Screen


EVENT LOG

EVENT FIRST LAST CURRENT COUNT

DDS SYNC LOSS 01/01/98 00:00:04 01/04/00 09:45:07 CLEAR 029 DDS LOOP OPEN 01/01/98 00:00:04 01/04/00 09:45:07 CLEAR 025 OCU-R MARGIN 01/04/00 09:07:07 01/04/00 09:07:07 CLEAR 001

DDS-DP MARGIN 01/04/00 09:07:08 01/04/00 09:07:08 CLEAR 002 DSL SYNC LOSS 01/01/98 00:00:00 01/01/98 00:00:00 CLEAR 001 DSL LOOP OPEN 01/01/98 00:00:19 01/01/98 00:00:19 CLEAR 001

LAST LOG RESET 01/01/98 00:00:19

<ENTER> To CLEAR the Event Log <ESC> To exit without destroying data

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Set Circuit IDThe Set Circuit ID screen (Figure 23) sets the circuit identification and also transfers the circuit ID to the Total Reach DDS-DP.

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Set Date and TimeThe Set Date and Time screen, Figure 24, may be used to set the Total Reach DDS CO unit date and time. Once the date and time are configured the performance registers date and time update accordingly, and the Total Reach OCU-R transfers the date and time to the Total Reach DDS CO unit.

Figure 23. Circuit ID Screen

Figure 24. Set Date and Time Screen


Set Circuit ID

New ID =


Set System Date and Time

New Date = 01/01/00 (MM/DD/YY)

Press ENTER to set new time.

< Press TAB to cycle between time and date >

New Time = 00:05:00 (HH/MM/SS)

Press ENTER to set new time.

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ADTRAN InformationThe ADTRAN Information screen (Figure 25) displays part number, serial number, CLEI code, and unit revision for the Total Reach DDS CO unit and Total Reach OCU-R.

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Terminal ModesA Terminal Modes Menu (Figure 26) is available for configuring the craft interface for a manual terminal update or a real-time terminal update.

Figure 25. ADTRAN Information Screen

Figure 26. Terminal Modes Menu


## ################################### # ## ## Support Hours: 7am - 7pm CST # ## ###### ## ###### ## ###### Emergency: 7days x 24hrs # ## ## ## ## ## ## # ## ## ## Phone: 800.726.8663 ########## ## ## ## ###### ###### ## ## Fax: 256.963.6217 # ######## ##### ### #### ## Internet: www.adtran.com

##############################################901 Explorer Boulevard, Huntsville, AL 35806-2807

-----------Manufacturing Information-----------Unit PART # SERIAL NUM CLEI REV------ ---------- ---------- ---------- ---DDS-DP 1292006L4 951C9651 D4D4AKSCAA AOCU-R 1292023L5 AO4A0723 D4OIKXU8AA A


TERMINAL MODES MENU

MANUAL UPDATE MODE:

* You can print or log screens * No text is highlighted * “Ctrl+R to Update” appears at the top of each screen, reminding you to press both the ‘Ctrl’ and ‘R’ keys to update the screen * There is a delay between screen changes & updates * After 30 min. of no interaction, a new baud rate search is begun * Ignores input until screen is finished printing * The <BACKSPACE> key is ignored

REAL-TIME UPDATE MODE:

* Faster of the two modes * You cannot print screens to a log file * Highlighting is enabled * Recommended for daily operation

Press “CTRL + T” to toggle update modes

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NOTEReal-time terminal update is recommended fornormal terminal operation unless screens are tobe captured or logged to a print file.

5. REMOTE PROVISIONING AND DIAGNOSTICSControl ProtocolRemote access to provisioning and status information is accomplished using ADTRAN Digital System 6 Message protocol, defined in Control and Diagnostic Procedures Practice, Section 6032991-6. Digital System 6 is supported by the TPI 108/109 and 105 portable test set and is supported by Hekimian React 2001 Release 1.900 remote test system. The Total Reach DDS network elements comply with ANSI T1.107-1995, “Digital Hierarchy Format Specifications Annex G” which allows remote provisioning, querying, and performance monitoring via inband control of network elements.

NOTEThe REACT 2001 GUI software Release 1.900supports ANSI T1.107-1995.

Remote access is accomplished using a defined set of inband DS0 byte sequences similar to the latching loopback sequence. Commands issued through the test system are recognized by the individual channel unit, which responds with the appropriate byte sequences. These inband commands may be used to verify options via dialogs with REACT 2001 and TPI 108/109 test sets. Unit CLEI, serial number, provisioning, and performance information can be retrieved remotely using the Digital System 6 protocol.

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6. DEPLOYMENT GUIDELINESThe Total Reach DDS CO unit and Total Reach OCU-R use technology intended to eliminate the need for repeaters and concerns over impairments caused by typical noise and bridged tap. Listed below are the loop design guidelines for Total Reach DDS (see Table 7 and Table 9 for more information):

• All loops must be nonloaded.• Actual Measured Loss (AML) should not exceed 50

dB at 13.3 kHz (135 ohms termination), the Nyquist frequency of Total Reach DDS.

NOTEThe 50 dB AML limit includes 6 dB of signalmargin to account for potential near-end crosstalk (NEXT) from other digital services thatmay be provisioned in the same binder group.

• Loop length should not exceed 50 kft.• Bridged tap tolerant to 12 kft (tests show no degra-

dation to 18 kft).• Background noise level should not exceed 34 dBrn.• Impulse noise should not exceed –40 dBm

(+50 dBrn).

NOTEMeasure noise with 50 kbit weighting charac-teristic approximating a filter with a passbandof 40 Hz to 30 kHz. Background noise level orimpulse noise level is referenced from 56/64kbps data rate in TR62310.

Table 9. Total Reach DDS Insertion Loss Measurements

Total Reach DDS13.3 kHz compared to 28 kHz for traditional DDS

service

Line Configuration @ 13.3 kHz @ 28 kHz

27 kft 26 AWG 50.12 dB 65.35 dB

36.25 kft 24 AWG 50.00 dB 62.50 dB

50 kft 22 AWG 50.24 dB 59.33 dB

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7. MAINTENANCEThe Total Reach OCU-R does not require routine maintenance for normal operation.

ADTRAN does not recommend that repairs be attempted in the field. Repair services may be obtained by returning the defective unit to ADTRAN. Refer to the Warranty and Customer Service section for further information.

8. SPECIFICATIONSSpecifications for the Total Reach OCU-R are detailed in Table 10.

Table 10. Total Reach OCU-R Specifications

Environmental

Operating Temperature:

Storage Temperature:

Relative Humidity:

Maximum Current Draw:

Maximum HeatDissipation:

–40°C to 65°C

–40°C to 85°C

95 percent maximum @ 50°C, noncondensing

1.6 W maximum @ 130V Span power

Physical

Dimensions:

Weight:

5.5 in. High, 0.7 in. Wide, 6.0 in. Deep

< 1 lb.

Part Number

Total Reach OCU-R ForOutside Plant All Rate

DDS Termination Unit: 1292023L5

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9. WARRANTY AND CUSTOMER SERVICEADTRAN will replace or repair this product within the warranty period if it does not meet its published specifi-cations or fails while in service. Warranty information can be found at www.adtran.com/warranty.

U.S. and Canada customers can also receive a copy of the warranty via ADTRAN’s toll-free faxback server at 877-457-5007.

• Request document 414 for the U.S. and Canada Carrier Networks Equipment Warranty.

• Request document 901 for the U.S. and Canada Enterprise Networks Equipment Warranty.

Refer to the following subsections for sales, support, CAPS requests, or further information.

ADTRAN SalesPricing/Availability:800-827-0807

ADTRAN Technical SupportPre-Sales Applications/Post-Sales Technical Assistance:

800-726-8663

Standard hours: Monday - Friday, 7 a.m. - 7 p.m. CSTEmergency hours: 7 days/week, 24 hours/day

ADTRAN Repair/CAPSReturn for Repair/Upgrade:(256) 963-8722

Repair and Return AddressContact Customer and Product Service (CAPS) prior to returning equipment to ADTRAN.

ADTRAN, Inc.CAPS Department901 Explorer BoulevardHuntsville, Alabama 35806-2807

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http://www.adtran.com/warranty

®

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total reach ocu r info

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