testing times ahead - tcp online home hc to to to hc tp/cp mc main cross-connect ic intermediate...
Post on 26-May-2018
219 Views
Preview:
TRANSCRIPT
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
e-Ready BuildingNext Generation IT infrastructures
Testing Times AheadTHE LATEST PROPOSALS FOR TESTING COPPER AND OPTICAL FIBRE CABLING
Prepared and delivered by The Cabling Partnership
BSI, Chiswick, London: 15th October 2001Wandsworth, London: 19th November 2001
The CablingPartnershipϕ
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Mike GilmoreThe Cabling Partnership
www.it-cabling.come-Ready Building
www.e-readybuilding.comPO Box MT65, LEEDS, LS17 8YD, United KingdomTel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724
ISO/IEC JTC1 SC25 Secretary: WG3: Generic Cabling
Member: Project Team: SOHO
CENELEC50173 Ed.2 (2002)
Convenor: TC215 WG1: IT Cabling
BSIChairman TCT7/-/1: IT CablingChairman TCT7/-/3: IT Cabling
Fibreoptic Industry Association Standards Director Technical Director
Mike Gilmore
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Agenda
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
The status of the standardsISO, EN and USStructureMaximum ImplementationsInter/Cross-connectsCordsInterfaces
EquipmentTest
Implementation Rules
Application SupportCabling Life CycleChannel ComponentsContents - ISO/IEC and EN
ISO and ENUS
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
ISO, EN and US
EN 50173 Ed.2 (2002)
Information technology-
Generic cabling systems
ISO/IEC 11801 Ed.2 (2002)
Information technology-
Generic cabling forcustomer premises
ANSI/TIA/EIA 568 B Series
Commercial buildingtelecommunications cabling
standard
• SE Completed• 6MP begins July, 2001• 3MV begins Q2, 2002• publication Q4, 2002
• 2nd CD Completed• FCD NOW (N739)• FDIS Q2, 2002• publication Q4, 2002
• B.1 General Requirements• published
• B.2 Balanced Twisted-pair Cabling• published• Addendum 1
• Category 6• Draft 9a (08/01)
• B.3 Optical Fibre Cabling• published
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Structure
optional cables
TO TO TO
CP
BD
CD
BD
FDFD
TO TO TO
FD
CP
CD Campus distributorBD Building distributorFD Floor distributorCP Consolidation pointTO Telecommunications outlet
TO TO TO
TP/CP
IC
MC
IC
HCHC
TO TO TO
HC
TP/CP
MC Main cross-connectIC Intermediate cross-connectHC Horizontal cross-connectCP Consolidation pointTP Transition pointTO Telecommunications outlet
ISO/IEC and EN ANSI/TIA/EIA-568-B.1
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Maximum Implementations
WA
CD
BD FD
2000 metres
100metres
WA
MC
IC HC
800 metres: Cu2000 metres: MMF3000 metres: SMF
100metres
ISO/IEC and EN
ANSI/TIA/EIA-568-B.1
500 metres: Cu1700 metres: MMF2700 metres: SMF
300metres
WA Work area
WA Work area
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Inter/Cross-connects
Mated connectionCC Crossconnect panelPP Patch panel
PPCC Crossconnect channel implementationsPP
PPInterconnect channel
implementations
Splice
ISO/IEC, EN and ANSI/TIA/EIA
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Cords
Horizontal cabling implementation
with Consolidation PointPP CP TOCC
Equipment cord Patch cord
PPCC PP CC
Backbone cabling implementation
Patch cord Equipment cord
CP cord Work area cord
ISO/IEC, EN and ANSI/TIA/EIA
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Equipment Interfaces
PPCC PP CC
Backbone cabling implementation
EQUIPMENT INTERFACES
ISO/IEC, EN and ANSI/TIA/EIA
Horizontal cabling implementation
PP
CP TO
CC WA
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Test InterfacesISO/IEC and EN
Horizontal cabling implementation
PPCC PP CC
Backbone cabling implementation
PP
CP TO
CC WA
TEST INTERFACES
ANSI/TIA/EIA-568-B.1
Horizontal cabling implementation
PP
CP TO
CC WA
TEST INTERFACES
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Implementation Rules
PP CP
TO
CC
FD
WA
100 metres max.
No. of connections2
3 inc. CP4
H = (106-31-FX-CY)/TH = (105-FX-CY)/TH = (107-FX-CY)/T
H = (109-FX)/T3 w/o. CP H = (107-FX)/T
H = (107-31-FX)/TH = (106-31-FX)/T
H = (106-31-FX-CY)/TH = (105-31-FX-CY)/T H = (105-41-FX-CY)/T
H = (106-31-FX)/TH = (107-21-FX)/T
Class D/Category 5 Class E/Category 6 Class F/Category 7
T = 1 + (t-20) x α where t = maximum design temperature within link
α = 0.2 for t>20oC = 0.4 for 20oC<t<40oC= 0.6 for 40oC<t<60oC
for screened cables for unscreened cables
Note 1: this length reduction is provides margin for insertion loss deviation.
C
F1 F2
F = F1 + F2 X = cord attenuation premiumY = CP cable attenuation premium (if any)
X and Y 1.5 typically 1.2 typically
90 metres max.
H, 15 metres min.
ISO/IEC and EN
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Implementation Rules
PP CP
TO
CC
FD
WA
100 metres max.
H = (102-FX)
Class D/Category 5 Class E/Category 6
for screened cables for unscreened cables
F1 F2
F = F1 + F2 X = cord attenuation premium
X 1.5 typically 1.2 typically
H, 90 metres max.
15 metres min.
ANSI/TIA/EIA-568-B.1
No. of connections
2,3 or 4
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Contents - ISO/IEC and EN
FOREWORDINTRODUCTION
SCOPENORMATIVE REFERENCES
DEFINITIONS AND ABBREVIATIONSCONFORMANCE
STRUCTURE
CABLESCONNECTING HARDWARE
CORDS
ELECTROMAGNETIC PERFORMANCE
Screening practicesAdministration
Mech/env. testing for connecting hardware
Acronyms for balanced cablesSUPPORTED APPLICATIONS
Calculation of links and channelsLINK AND CHANNEL PERFORMANCE REQUIREMENTS OF PREVIOUS EDITIONS
Bibliography
12
1.123
1.24
43
55
6
PERFORMANCE68
REFERENCEIMPLEMENTATIONS
78
7810
9
9
Annex D Annex D
111213
Test procedures
Annexes A/B
Annex BAnnex C
Annex EAnnex F Annex C
Annex EAnnex GAnnex HAnnex I
Copper and OF links
ISO/IEC FCD 11801 Ed.2 (N739) EN 50173 Ed.2 (6MP)
Copper channels and links*OF channels and linksCopperOF Copper and OF
Copper and OF channels
Annex A Copper links (full requirements)
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Contents - ISO/IEC and EN
FOREWORDINTRODUCTION
SCOPENORMATIVE REFERENCES
DEFINITIONS AND ABBREVIATIONSCONFORMANCE
STRUCTURE
CABLESCONNECTING HARDWARE
CORDS
ELECTROMAGNETIC PERFORMANCE
Screening practicesAdministration
Mech/env. testing for connecting hardware
Acronyms for balanced cablesSUPPORTED APPLICATIONS
Calculation of links and channelsLINK AND CHANNEL PERFORMANCE REQUIREMENTS OF PREVIOUS EDITIONS
Bibliography
12
1.123
1.24
43
55
6
PERFORMANCE68
REFERENCEIMPLEMENTATIONS
78
7810
9
9
Annex D Annex D
111213
Test procedures
Annexes A/B
Annex BAnnex C
Annex EAnnex F Annex C
Annex EAnnex GAnnex HAnnex I
Copper and OF linksCopper channels and links*OF channels and linksCopperOF Copper and OF
Copper and OF channels
Annex A Copper links (full requirements)
ISO/IEC FCD 11801 Ed.2 (N739) EN 50173 Ed.2 (6MP)
Worst case
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
What can we test?
ChannelGeneric Link (1995)Basic Link (1997)Permanent Link (2000)Permanent Link (2001)Permanent Link (2002)CP Link (2002)
Test Measurement ValidityChannel Misconceptions
Link Limit Definition
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
The Channel
PPCC PP CC
Backbone cabling implementation
ISO/IEC, EN and ANSI/TIA/EIA
Channel
Horizontal cabling implementation
PP
CP TO
CC WA
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Generic Link (1995)
PPCC PP CC
Backbone cabling implementation
ISO/IEC 11801 Ed.1 and EN 50173 Ed.1
Generic link
Horizontal cabling implementation
PP
TO
CC WA
Generic link
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Basic Link (1997)TIA/EIA-TSB67
Basic link
Horizontal cabling implementation
PP
TO
CC WA
Basic link test configuration
TE TE
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Permanent Link (2000)
PPCC PP CC
Backbone cabling implementation
ISO/IEC 11801 Ed.1.2 (2000) and EN 50173 Ed.1 Amendment 1 (2000)
Permanent link
Horizontal cabling implementation
PP
TO
CC WA
Permanent link
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Permanent Link (2001)
PPCC PP CC
Backbone cabling implementation
ANSI/TIA/EIA-568-B.1
Permanent link
Horizontal cabling implementation
PPCC WA
CP TO
Permanent link
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Permanent Link (2002)
PPCC PP CC
Backbone cabling implementation
ISO/IEC 11801 Ed.2 (2002), EN 50173 Ed.2 (2002) and ANSI/TIA/EIA-568-B.1
Permanent link
Horizontal cabling implementation
PPCC WA
CP TO
Permanent link
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
CP Link (2002)ISO/IEC 11801 Ed.2 (2002) and EN 50173 Ed.2 (2002)
CP link
Horizontal cabling implementation
PPCC WA
CP TO
A point of contractual transfer
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Link Limit DefinitionISO/IEC 11801 Ed.2 (2002), EN 50173 Ed.2 (2002) and ANSI/TIA/EIA-568-B.1
There are no restrictions on the length of:• equipment and patch cords;
• CP cords/cables;• work area cords.
CP link
Horizontal cabling implementation
PP WA
CP TO
Horizontal cabling implementation
PPCC WA
TO
PPCC PP CC
Backbone cabling implementation
Permanent link
Permanent link
CC
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Link Measurement ValidityISO/IEC 11801 Ed.2 (2002) and EN 50173 Ed.2 (2002)
“Channel performance shall be explicitly verified where a channel is created by adding more than onecord to either end of a link meeting the requirements of Annex A”.
CONFORMANCE
CP link
Horizontal cabling implementation
PP WA
CP TO
Horizontal cabling implementation
PPCC WA
TO
PPCC PP CC
Backbone cabling implementation
Permanent link
Permanent link
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel Misconceptions
PPCC PP CC
Backbone cabling implementation
ISO/IEC, EN and ANSI/TIA/EIA
Channel - Transmission
Horizontal cabling implementation
PP
CP TO
CC WA
Channel - Physical
Equipment cords are NOT patch cords
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Break
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
The Differing Requirements
Channel RequirementsSummary
Attenuation/Insertion LossModels
Permanent Link RequirementsSummary
Return LossMaximum Models
Attenuation/Insertion LossCP Link Requirements
SummaryModel
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel Requirements SummaryParameter
Return lossAttenuation/insertion loss
NEXTPS NEXT
PS ACRACR
ELFEXT PS ELFEXT
d.c. loop resistanced.c. resistance unbalance
d.c. current carrying capacity
Propagation delayDelay skew
Transmissionparameters
Protocol functionparameters
Current carryingparameters
ISO/IEC and EN 568-B.1Category 5eClass D (2002)
ISO/IEC and EN 568-B.2.1Category 6Class E
Harmonized1 Harmonized1
HarmonizedHarmonized
HarmonizedHarmonized Harmonized
Harmonized
HarmonizedHarmonized
Harmonized HarmonizedHarmonized Harmonized
Not specifiedNot specifiedNot specified
Not specifiedNot specifiedNot specified
Not specifiedNot specified
Not specifiedNot specified
NEXT2
PSNEXT2NEXT2
PSNEXT2
Not harmonized Not harmonized
NOTE 1: 3dB get-out clause in ISO/IEC and ENNOTE 2: 4dB get-out clause in ISO/IEC and EN
Other parameters Length Not specified Not specified
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel Models
PP CP TOCC
FD
WA
100 metres
90 metres
ISO/IEC and EN
IEC/EN cables with 50% additional attenuation
PP CP TOCC
FD
WA
100 metres
90 metres
ANSI/TIA/EIA
TIA/EIA568-B.2 cables with 20% additional attenuation
IEC/EN cables
TIA/EIA568-B.2 cables
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Attenuation/Insertion Loss
ISO/IEC and EN 568-B.1Category 5eClass D (2002)
568-B.2.1Category 6Class E
1,05*(1,9108*sqrt(f)+0,0222*f+0,2/sqrt(f))+4*0,04*sqrt(f) 4dB min
1,05*(1,82*sqrt(f)+0,0169*f+0,25/sqrt(f))+4*0,02*sqrt(f))4dB min.
1,02*(1,967*sqrt(f)+0,023*f+0,2/sqrt(f))+4*0,04*sqrt(f))
1,02*(1,808*sqrt(f)+0,017*f+0,2/sqrt(f))+4*0,02*sqrt(f)) + 0,0003*f1.5
3dB min.
0
5
10
1520
25
30
35
40
1 10 100 1000
Frequency (MHz)
dBChannel
Class D/Cat. 5e
Class E/Cat. 6
f dB16 9,1
100 24,0
dB9,124,0
Class D Cat. 5e
f dB16 8,3
100 21,7
dB8,021,3
Class E Cat. 6
200 31,7 31,5250 35,9 36,0
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
PL Requirements Summary
Return lossAttenuation/insertion loss
NEXTPS NEXT
PS ACRACR
ELFEXT PS ELFEXT
d.c. loop resistanced.c. resistance unbalance
d.c. current carrying capacity
Propagation delayDelay skew
Transmissionparameters
Protocol functionparameters
Current carryingparameters
Harmonized1,3 Harmonized1,3
HarmonizedHarmonized
HarmonizedHarmonized Harmonized
Harmonized
HarmonizedHarmonized
Harmonized HarmonizedHarmonized Harmonized
Not specifiedNot specifiedNot specified
Not specifiedNot specifiedNot specified
Not specifiedNot specified
Not specifiedNot specified
NEXT2,3
PSNEXT2,3NEXT2,3
PSNEXT2,3
Not harmonized Not harmonized
Parameter ISO/IEC and EN 568-B.1Category 5eClass D (2002)
ISO/IEC and EN 568-B.2.1Category 6Class E
NOTE 1: 3dB get-out clause in ISO/IEC and ENNOTE 2: 4dB get-out clause in ISO/IEC and ENNOTE 3: TO-CP get-out clause in EN 50173 6MP
SpecifiedChannelChannel
SpecifiedChannelChannel
Other parameters Length Not specified Not specified
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Maximum PL Models
PP CP TO
90 metres
ISO/IEC and EN
PP CP TO
90 metres
ANSI/TIA/EIA
IEC/EN cables
TIA/EIA568-B.2 cables
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Return Loss
568-A Addendum 5 568-B.1Category 5eCategory 5e
17-7log(f/20), 17,0 dB max. 19-10log(f/20), 19,0 dB max.
0
5
10
1520
25
30
35
40
1 10 100
Frequency (MHz)
dB
568-B.1 requirementsare significantly more stringent
568-A-5
568-B.1
PL
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Attenuation/Insertion Loss
ISO/IEC and EN 568-B.1Category 5eClass D (2002)
568-B.2.1Category 6Class E
0,9*(1,9108*sqrt(f)+0,0222*f+0,2/sqrt(f))+3*0,04*sqrt(f) 4dB min
0,9*(1,82*sqrt(f)+0,0169*f+0,25/sqrt(f))+4*0,02*sqrt(f))4dB min.
0,9*(1,967*sqrt(f)+0,023*f+0,2/sqrt(f))+3*0,04*sqrt(f))
0,9*(1,808*sqrt(f)+0,017*f+0,2/sqrt(f))+3*0,02*sqrt(f)) + 0,00015*f1.5
3dB min.
0
5
10
1520
25
30
35
40
1 10 100 1000
Frequency (MHz)
dBMaximum PL
Class D/Cat. 5e
Class E/Cat. 6
f dB16 7,7
100 20,4
dB7,921,0
Class D Cat. 5e
f dB16 7,0
10027,1
dB7,1
27,4
Class E Cat. 6
20018,5 18,6
250 30,7 31,1
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
CP Link Requirements Summary
Return lossAttenuation/insertion loss
NEXTPS NEXT
PS ACRACR
ELFEXT PS ELFEXT
d.c. loop resistanced.c. resistance unbalance
d.c. current carrying capacity
Propagation delayDelay skew
Transmissionparameters
Protocol functionparameters
Current carryingparameters
Parameter ISO/IEC and EN 568-B.1Category 5eClass D (2002)
ISO/IEC and EN 568-B.2.1Category 6Class E
NOTE 1: 4dB get-out clause in ISO/IEC and EN
Not specified Not specified
PLPL
PL
PLPL
PLLength dependent
Length dependentLength dependentLength dependent
ChannelChannel
Length dependentLength dependentLength dependent
ChannelChannel
NEXT1
PSNEXT1 PSNEXT1NEXT1
Length dependent
PL++PL++
PL++PL++
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
CP Link Model
PP CP TO
L metres
ISO/IEC and EN
IEC/EN cables
ANSI/TIA/EIA-568-B.1
Horizontal cabling implementation
PP
CP TO
CC WA
TEST INTERFACES
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Copper: Testing Philosophies
Channel and Link Test LimitsTest Equipment LimitationsISO/EN Length DependenciesISO/EN Return LossISO/EN NEXT/PSNEXTISO/EN Outstanding Items
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel and Link Test Limits
ISO/IEC and EN
Channel
ANSI/TIA/EIA-568-BDesign independent
Fixed limitDesign independent
Fixed limit
Permanent Link Design dependentFixed maximum implementation limit
Design independentFixed limit
CP Link No specified limitsDesign dependentFixed maximum implementation limit
Complex requirement-
Difficult to verify
Simple requirement-
Inadequate QA
PP
TO
Note 1: CP cable may have different attenuation
PP CP
TO
C1H
H
PP PP
B
PP CP
H
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Theoretical Link Limits - I
Horizontal cabling implementation
PP PP
Backbone cabling implementation
PP
CP TO
Permanent link
Horizontal cabling implementation
PP
CP
CP link
Configuration A
PP
TO
Horizontal cabling implementation
Configuration B
Configuration C
Configuration D
Test interface x Test interface y
-20*log(10^(-0,05*(function of log(f))+N*10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+N*10^(function of log(f)))
Channel + 2 dBFormulae taking the form
-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))
n = 2 for Configurations A, B and D, n = 3 for Configuration C
NEXTPSNEXT
Return loss
ELFEXTPSELFEXT
N = 1 for Configurations A, B and DN = 1 for Configuration C at “Test interface x” and N=2 at “Test interface y”
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Theoretical Link Limits - II
Horizontal cabling implementation
PP PP
Backbone cabling implementation
PP
CP TO
Permanent link
Horizontal cabling implementation
PP
CP
CP link
Configuration A
PP
TO
Horizontal cabling implementation
Configuration B
Configuration C
Configuration D
Test interface x Test interface y
Formulae taking the form(L/100)*(0,534+0,036/sqrt(f)) + n*0,0025Propagation delay
(L/100)*0,045 + n*0,00125Delay skewn = 2 for Configurations A, B and D, n = 3 for Configuration C
L = LPL + LCPLPL = length of fixed cable (m), LCP = length of CP cord (where present) (m)
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Theoretical Link Limits - III
Horizontal cabling implementation
PP PP
Backbone cabling implementation
PP
CP TO
Permanent link
Horizontal cabling implementation
PP
CP
CP link
Configuration A
PP
TO
Horizontal cabling implementation
Configuration B
Configuration C
Configuration D
Test interface x Test interface y
(L/100)*22 + n*0,4 d.c. loop resistance(L/100)*(A*sqrt(f)+B*f+C/sqrt(f)) + n*D*sqrt(f)Insertion loss/attenuation
Formulae taking the form
n = 2 for Configurations A, B and D, n = 3 for Configuration C3%d.c. resistance unbalance Within a pair
L = LPL + LCP*YLPL = length of fixed cable (m), LCP = length of CP cord (where present) (m)
Y = the ratio of CP cable attenuation (dB/m) to fixed horizontal cable attenuation (dB/m)
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Test Equipment Limitations
TEST EQUIPMENT CANNOT MEASURE LENGTH TEST EQUIPMENT MANUFACTURERSDO NOT WANT TO INCREASE LIMIT COMPLEXITY
TEST EQUIPMENT MANUFACTURERSFEAR
“FAILS”
CONFIGURATION-DEPENDENT LIMITS
MULTIPLE ATTENUATION VALUES(Y in Configuration C)
NO
NO
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
ISO/EN Length DependenciesFormulae taking the form
(L/100)*(0,534+0,036/sqrt(f)) + n*0,0025Propagation delay(L/100)*0,045 + n*0,00125Delay skew
L = LPL + LCPLPL = length of fixed cable (m), LCP = length of CP cord (where present) (m)
(L/100)*22 + n*0,4 d.c. loop resistance(L/100)*(A*sqrt(f)+B*f+C/sqrt(f)) + n*D*sqrt(f)Insertion loss/attenuation
n = 2 for Configurations A, B and D, n = 3 for Configuration C3%d.c. resistance unbalance Within a pair
L = LPL + LCP*YLPL = length of fixed cable (m), LCP = length of CP cord (where present) (m)
Y = the ratio of CP cable attenuation (dB/m) to fixed horizontal cable attenuation (dB/m)
Where the maximum lengths of channel components to be added to the link are known and specified for the cabling,the margin between the measured value of ……. and the channel limits shall exceed the total ……. of:
• the specified maximum lengths of cords used to create the channel;• the specified maximum lengths of additional cables/connections, where appropriate, used to create the channel.
FCD ISO/IEC 11801 (N739) contains a practical alternative
A practical method of meeting this requirement is to demonstrate that the margin between the measured value andthe channel limits are adequate to accommodate any additional cabling components used to create the channel.
An improved wording is proposed for EN 50173 3MV
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
ISO/EN Return Loss
For configuration C ….. close proximity of TO and CP connections can ….FAIL
Such results are compliant provided that:a) the measured link values at test interface “y”, and a complete channel, comply with the channel requirementsorb) a complete channel complies with the channel requirements.
-20*log(10^(-0,05*(function of log(f))+N*10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+N*10^(function of log(f)))
Channel + 2 dBFormulae taking the form
-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))
n = 2 for Configurations A, B and D, n = 3 for Configuration C
NEXTPSNEXT
Return loss
ELFEXTPSELFEXT
N = 1 for Configurations A, B and DN = 1 for Configuration C at “Test interface x” and N=2 at “Test interface y”
CP TOPP
Test interface x Test interface y
EN 50173 6MP contains Configuration C get-out clause
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
EN NEXT/PSNEXT
For configuration C ….. close proximity of TO and CP connections can ….FAIL
Such results are compliant provided that the measured link values at test interface “y” comply with the channelrequirements.
-20*log(10^(-0,05*(function of log(f))+10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+10^(function of log(f)))
Channel + 2 dBFormulae taking the form
-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))
n = 2 for Configurations A, B and D, n = 3 for Configuration C
NEXTPSNEXT
Return loss
ELFEXTPSELFEXT
CP TOPP
Test interface x Test interface y
EN 50173 6MP contains Configuration C get-out clause
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
ISO/EN Outstanding Items
Horizontal cabling implementation
PP PP
Backbone cabling implementation
PP
CP TO
Permanent link
Horizontal cabling implementation
PP
CP
CP link
Configuration A
PP
TO
Horizontal cabling implementation
Configuration B
Configuration C
Configuration D
Test interface x Test interface y
-20*log(10^(-0,05*(function of log(f))+10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+10^(function of log(f)))
Channel + 2 dBFormulae taking the form
-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))-20*log(10^(-0,05*(function of log(f))+n*10^(function of log(f)))
n = 2 for Configurations A, B and D, n = 3 for Configuration C
NEXTPSNEXT
Return loss
ELFEXTPSELFEXT
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Copper: the “real world”
Implementation RulesChannel DesignAttenuation and Delay Skew
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Implementation Rules
PP CP
TO
CC
FD
WA
100 metres max.
No. of connections2
3 inc. CP4
H = (106-31-FX-CY)/TH = (105-FX-CY)/TH = (107-FX-CY)/T
H = (109-FX)/T3 w/o. CP H = (107-FX)/T
H = (107-31-FX)/TH = (106-31-FX)/T
H = (106-31-FX-CY)/TH = (105-31-FX-CY)/T H = (105-41-FX-CY)/T
H = (106-31-FX)/TH = (107-21-FX)/T
Class D/Category 5 Class E/Category 6 Class F/Category 7
T = 1 + (t-20) x α where t = maximum design temperature within link
α = 0.2 for t>20oC = 0.4 for 20oC<t<40oC= 0.6 for 40oC<t<60oC
for screened cables for unscreened cables
Note 1: this length reduction is provides margin for insertion loss deviation.
C
F1 F2
F = F1 + F2 X = cord attenuation premiumY = CP cable attenuation premium (if any)
X and Y 1.5 typically 1.2 typically
90 metres max.
H, 15 metres min.
ISO/IEC and EN
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel Design
Horizontal cabling implementation
PPCC PP CC
Backbone cabling implementation
PP
CP TO
CC WA
Maximum lengths, X and Y to be defined by designer
Where the maximum lengths of channel components to be added to the link are known and specified for the cabling,the margin between the measured value of ……. and the channel limits shall exceed the total ……. of:
• the specified maximum lengths of cords used to create the channel;• the specified maximum lengths of additional cables/connections, where appropriate, used to create the channel.
Margin statementsindicate that only
attenuation/insertionloss and delay skewneed to be checked.
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Attenuation and Delay Skew
The highest measured attenuation/insertion loss occurs at the highestmeasurement frequency.
The test equipment will have to report the margin between themeasured value and the channel limit at:• 100 MHz for Class D compliance;• 250 MHz for Class E compliance.
The installer has to check that the margin is acceptable.
Class EClass DConnection 0,2 dB 0,32 dBSolid cable 0,21 dB/m 0,33 dB/m
Stranded cable0,25 dB/m 0,40 dB/mUnscreened cable0,32 dB/m 0,50 dB/mScreened cable
ATTENUATION/INSERTION LOSS
DELAY SKEW
Delay skew is constant with frequency The installer has to check that the margin is acceptable.
Class EClass DConnection 1,25 ns
Cable 0,45 ns/m
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Question Time
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Lunch
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
OF - Testing Philosophies
Reference PointsGeneral ImplementationsThe Alternative ApproachesTesting RegimesLSPM Test Methods
Cabling ConfigurationsGlossary
Configuration A
Impact of Incorrect Methods
Test Methods
Configuration BConfiguration C
LSPM Measurement Accuracy
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Reference Points
Channel
PP
PP
Link
Mated connectionPP Patch panel
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
General Implementations
Channel
PP
PP
Link
FP FP
Link
Mated connectionPP Patch panelFP Free plug
FPPP
Link
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
The Alternative Approaches
“Channel” approach
APPLICATION
Optical power budget (dB)
850nmMMF SMF
1300nm 1310nmISO/IEC 8802-3: 10BASE-FL/FB 12,5 (6,8)ISO/IEC 8802-5: TR 4/16 Mbit/s 13,0 (8,0)
CD 14165-1: Fibre Channel-1062 6,04,0
ISO/IEC 9314-3 FDDI 11,0 (6,0)ISO/IEC DIS 9314-4 FDDI 10,0
ISO/IEC 8802-3: 100BASE-FX 11,0 (6,0)
IEEE 802-3: 1000BASE-SX 2,6 (3,56)IEEE 802-3: 1000BASE-LX 2,35 5,0
TR 100 Mbit/s 11,0 (6,0)
“Overall loss” approach
“Component loss” approach
x dB z dBy dBMaximum values
x dB z dBy dBMaximum values
< x dB < z dB< y dBActual values
Link < (x + y + z) dBActual value
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Testing RegimesTEST REGIME TEST TOOLTESTING APPROACHITEMS UNDER TEST
OTDR
LSPMOverall loss
Component LSPM
ComponentCablesComponent Acceptance
Cords
Links and channelsLegacy Cabling Acceptance
LSPMOverall loss
Component OTDR
Installed Cabling Acceptance Links and channels
LSPMOverall loss
Component OTDR
Fault Diagnosis Links and channels Component OTDR
Partial Completion Tests Links Component OTDR
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
LSPM Test MethodsINTERNATIONAL STANDARDS
EUROPEAN STANDARDS BRITISH STANDARDS
ISO/IEC11801 Ed.2 (2002)
EN (future BS EN)50173 Ed.2 (2002)
BS7718 (1996)
US STANDARDSANSI/TIA/EIA
568B.1 (2001)
Multimode SinglemodeANSI/TIA/EIA526-14-A
ANSI/TIA/EIA526-7-A
Multimode SinglemodeIEC
61280-4-1IEC
61280-4-2
Multimode SinglemodeIEC
61280-4-2
EN (future BS EN)50346 (2002)
Multimode Singlemode
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
LSPM Test Method GlossaryTITLEARENA REFERENCE
IEC 61280-4-1
IEC 61280-4-2
EN 50346
TIA/EIA 526-14-A
TIA/EIA 526-7
OFSTP-14A Optical Power Loss Measurement of Installed Multimode FiberCable Plant (ANSI/TIA/EIA-526-14A-98)
OFSTP-7 Measurement of Optical Power Loss of Installed Single-Mode FiberCable Plant (ANSI/TIA/EIA-526-7-98)
Fibre optic communication subsystem basic test procedures -Part 4-1: Fibre optic cable plant - Multimode fibre optic cable plant attenuation
Fibre optic communication subsystem basic test procedures -Part 4-2: Fibre optic cable plant - Single-mode fibre optic cable plant attenuation
Information Technology - Testing of installed cabling
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Cabling Configurations
Channel
PP
PP
Link
Configuration A
Configuration C
FP FP
Link
FPPP
Link
Configuration B
Configuration B
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Configuration A Test MethodMated connection
PP Patch panelFP Free plug
Reference measurement P0
LS S PMD
Launch cord
LS S
Launch cord Test measurement P1
PMD
Tail cordLink under test
PP
PP
Link
Configuration A
Loss = P1 - P0 (dB)
MMF: not applicable
SMF: IEC 61280-4-2 Method 1.A
MMF: EN 50346 Method 1
SMF: IEC 61280-4-2 Method 1.A
MMF: ….-526-14-A Method B
SMF: ….-526-7 Method A.1
BS 7718: Configuration A
Measured loss
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Configuration B Test MethodMated connection
PP Patch panelFP Free plug
LS S
Launch cord Test measurement P1
PMD
Tail cordLink under test
Loss = P1 - P0 (dB)
MMF: not applicable
SMF: IEC 61280-4-2 Method 1.C
MMF: EN 50346 Method 2
SMF: IEC 61280-4-2 Method 1.C
MMF: ….-526-14-A Method C
SMF: ….-526-7
BS 7718: Configuration B
LS S
Launch cord Reference measurement P0
PMD
Tail cordDummy cord
FP FP
Link
Configuration B
Measured loss
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Configuration C Test MethodMated connection
PP Patch panelFP Free plug
LS S
Launch cord Test measurement P1
PMD
Tail cordLink under test
Loss = P1 - P0 (dB)
MMF: not applicable
SMF: IEC 61280-4-2 Method 1.B
MMF: ….-526-14-A Method A
SMF: ….-526-7
BS 7718: Configuration C
LS S
Launch cord Reference measurement P0
PMD
Tail cord
Configuration C
FPPP
Link
Measured loss
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Impact of Incorrect MethodsINSTALLED LINK RESULTMETHOD APPLIED
CONFIGURATION A
CONFIGURATION BCONFIGURATION A
CONFIGURATION C LOW BY 1 CONNECTION
LOW BY 2 CONNECTIONS
CORRECT
CONFIGURATION A
CONFIGURATION BCONFIGURATION B
CONFIGURATION C
HIGH BY 2 CONNECTIONS
CORRECT
HIGH BY 1 CONNECTION
CONFIGURATION A
CONFIGURATION BCONFIGURATION C
CONFIGURATION C
HIGH BY 1 CONNECTION
CORRECT
LOW BY 1 CONNECTION
INSTALLED CHANNEL RESULTMETHOD APPLIED
CONFIGURATION A
CONFIGURATION BCONFIGURATION B
CONFIGURATION C
HIGH BY 2 CONNECTIONS
CORRECT
HIGH BY 1 CONNECTION
All measurements are subject to the fundamental accuracy of the technique
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
LSPM Measurement Accuracy
−=
2
1
210log10
ddLossd2d1
CORE
CORE
CORE
NA1 NA2
dx
dB from large core to small core(0 dB from small to large)
dB from large NA to small NA(0 dB from small to large)
−=
2
1
210log10
NANALoss
−
−= −
dxe
xdeLoss
π2tan
901log10 1
10
5.02
1
−=
dxe
dB in both directions
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
LSPM Measurement Accuracy
−=
2
10 5347log10Loss4753CORE
CORE
CORE
NA = 0.215 NA = 0.185
50 µm2 µm
= -1.04 dB
−=
2
10 215.0185.0log10Loss
Loss
= -1.30 dB
= -0.47 dB
Applied statisticsand
real manufacturing tolerances
suggestcombined value
< -0.35 dB per joint
Measurement accuracy of LSPM systems = 0.7 dB plus other mismatches
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Duplex and SFF Testing
Duplex Cabling
Duplex Test Equipment
Uni-Directional Test EquipmentConfiguration A
General Test Methods
SFF Connections
Configuration AConfiguration B
Specific Test Methods
Bi-Directional Test EquipmentChannel
Configuration A
Configuration AChannel
Specific Test Methods
The Importance of Cords
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Duplex Cabling
Channel
PP
PP
Link
Configuration A
Configuration C
FP FP
Link
FPPP
Link
Configuration B
Configuration B
Mated connectionPP Patch panelFP Free plug
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Configuration A Test MethodMated connection
PP Patch panelFP Free plug
Reference measurement P0
LS S PMD
Launch cord
LS S
Launch cord Test measurement P1
PMD
Tail cordLink under test
PP
PP
Link
Configuration A
Loss = P1 - P0 (dB)
MMF: not applicable
SMF: IEC 61280-4-2 Method 1.A
MMF: EN 50346 Method 1
SMF: IEC 61280-4-2 Method 1.A
MMF: ….-526-14-A Method B
SMF: ….-526-7 Method A.1
BS 7718: Configuration A
Measured loss
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Configuration B Test MethodMated connection
PP Patch panelFP Free plug
LS S
Launch cord Test measurement P1
PMD
Tail cordLink under test
Loss = P1 - P0 (dB)
MMF: not applicable
SMF: IEC 61280-4-2 Method 1.C
MMF: EN 50346 Method 2
SMF: IEC 61280-4-2 Method 1.C
MMF: ….-526-14-A Method C
SMF: ….-526-7
BS 7718: Configuration B
LS S
Launch cord Reference measurement P0
PMD
Tail cordDummy cord
FP FP
Link
Configuration B
Measured loss
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Duplex Test Equipment
LS S PMDS D
EQUIPMENT TYPE EQUIPMENT TYPE
Uni-directional duplex
Bi-directional duplexLSPM S LSPMD
D S
Link testing rulesConfiguration A: test as channelConfiguration B: OKConfiguration C: test as channel
Channel tests: OK
Link testing rulesConfiguration A: OKConfiguration B: OKConfiguration C: OK
Channel tests: OK
GENERAL RULES
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Link Configuration A Test - IMated connection
PP Patch panelFP Free plug
PP
PP
Link
Configuration A
Reference measurement P01/ P02
LS S PMD
Launch cord
S D
LS S
Launch cord Test measurement P11/P12
PMD
Tail cordLink under test
S D
Lossx = P1x - P0x (dB)
Measured loss
UNI-DIRECTIONAL LSPM
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Link Configuration A Test - IIMated connection
PP Patch panelFP Free plug
PP
PP
Link
Configuration A
Reference measurement P01
LSPM S LSPMD
Cord A
D S
LSPM S
Cord A
Test measurement P11
LSPMD
Cord BLink under test
D S
Reference measurement P02
Test measurement P12
Test measurement P12 will be influenced by removal of Cord A from RH LSPMUnless LSPM guarantees that coupled power into Cord B is the same as Cord A, measurement error may occur
Loss1 = P11 - P01 (dB), Loss2 <=> P12 - P02 (dB)
BI-DIRECTIONAL LSPM
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel Test
Ref. measurement P01
LSPM S LSPMDD S
LSPM S
Cord A
Test measurement P11
LSPMD
Cord BLink under test
D S
Ref. measurement P02
Test measurement P12
Cord A Cord BDummy cord
Lossx = P1x - P0x (dB)
Measured loss
BI-DIRECTIONAL LSPM
Mated connectionPP Patch panelFP Free plug
FP FP
Link
Configuration B
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Link Configuration A Test
Ref. measurement P01
LSPM S LSPMDD S
LSPM S
Cord A
LSPMD
Cord BLink under test
D S
Test measurement P12
Cord A Cord BDummy cord
Lossx = P1x - P0x (dB)
Measured lossTest measurement P11
Ref. measurement P02
BI-DIRECTIONAL LSPM
Mated connectionPP Patch panelFP Free plug
PP
PP
Link
Configuration A
Short channel
cords
Short channel
cords
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
SFF Connections
Mating dimensions and gauging of TO connection IEC 60874-19-1 SC Duplex
ConnectionMultimode OF Singlemode OF
AllAttenuation (dB max)
Return loss (dB min)Splice
95%<0,5100%<0,75 100%<0,3
Wavelength
95%<0,5100%<0,75 100%<0,3
All 20dB NA 35dB NAConnection Splice
ISO/IEC 11801 Ed. 2 (2002)
BS EN 50173 Ed. 2 (2002)
EN 50173 Ed. 2 (2002)
2nd CDV: Document N696
6MP Document
IT CABLING STANDARDS
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
SFF Connections
ISO/IEC 11801 Ed. 2 (2002)
BS EN 50173 Ed. 2 (2002)
EN 50173 Ed. 2 (2002)
2nd CDV: Document N696
6MP Document
IT CABLING STANDARDS
Mating dimensions and gauging of TO connection IEC 60874-19-1 SC Duplex
ConnectionMultimode OF Singlemode OF
AllAttenuation (dB max)
Return loss (dB min)Splice
95%<0,5100%<0,75 100%<0,3
Wavelength
95%<0,5100%<0,75 100%<0,3
All 20dB NA 35dB NAConnection Splice
Requirements for areas other than the telecommunications outlet
The optical fibre connectors used shall meet the requirements ..., with exception of the physical dimensions.... In areasother than the work area, the choice of connecting hardware is open to all types of optical fibre connectors standardizedby IEC.
When high density is an important consideration …………….. Small Form Factor connector designs that accommodate atleast two fibres within the footprint of an EN 60603-7 connector are recommended.
However, where detail specifications produced by IEC or CENELEC in accordance with requirements of …. do not existthen assurance should be sought from suppliers that the combinations of components within connecting hardwareare able to meet the optical and mechanical requirements of this clause.
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Symmetric and Asymmetric
Symmetric Interface
Asymmetric Interface
Asymmetric Interface
x y
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Configuration A Link Testing
Reference measurement P01/ P02
LS S PMD
Launch cord
S D
y2LS S
Launch cord Test measurement P11/P12
PMD
Tail cordLink under test
S y2 D
Measured loss
Ref. measurement P01
LSPM S LSPMDD S
LSPM S
Cord A
LSPMD
Cord BLink under test
D S
Test measurement P12
Cord A Cord BDummy cord
Measured lossTest measurement P11
Ref. measurement P02
x2x2
x1x1
x1x1
x1x1
y1y1
x1x1
y1y1
y2y2
x2x2
UNI-DIRECTIONAL LSPM
BI-DIRECTIONAL LSPM
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Channel TestingRef. measurement P01
LSPM S LSPMDD S
LSPM S
Cord A
LSPMD
Cord B
D S
Test measurement P12
x1 x2y1
Cord A
y2
Cord BDummy cord
x1y1 x2 y2
Measured lossTest measurement P11
Ref. measurement P02
x1y1x1y1
x2 y2x2 y2
BI-DIRECTIONAL LSPM
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
The Importance of Cords
cord I.D.A B
cord I.D. B
A1
A2
cord I.D.
A1
A2
B1
B2
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Break
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Gigabit Ethernet
Optical Fibre CategoriesOptical Power BudgetsMeasurement ErrorPass/Fail Indicators
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Optical Fibre Categories
OM1 OM2 OM3 OS1
Multimode OFSinglemode OF
850nm1300nm
Attenuationcoefficient (dBkm-1 max)
3,51,5
1,01,0
850nm1300nm
Modal bandwidth OFL (MHz.km min)
200500
500500
500500
850nm1300nm
Modal bandwidth LL (MHz.km min)
ffsffs
ffsffs
2000ffs
50/125 or 62.5/125
850nm1300nm
Propagation delay (ns.m-1 max) 5
1310nm1550nm
1310nm1550nm 5
Wavelength Wavelength
ISO/IEC 11801 Ed. 2 (2002)
BS EN 50173 Ed. 2 (2002)
EN 50173 Ed. 2 (2002)
2nd CDV: Document N696
6MP Document
IT CABLING STANDARDS
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Optical Fibre Categories
OM1 OM2 OM3 OS1
Multimode OFSinglemode OF
850nm1300nm
Attenuationcoefficient (dBkm-1 max)
3,51,5
1,01,0
850nm1300nm
Modal bandwidth OFL (MHz.km min)
200500
500500
1500500
850nm1300nm
Modal bandwidth LL (MHz.km min)
--
--
2000-
50/125 or 62.5/125
850nm1300nm
Propagation delay (ns.m-1 max) 5
1310nm1550nm
1310nm1550nm 5
Wavelength Wavelength
ISO/IEC 11801 Ed. 2 (2002)
BS EN 50173 Ed. 2 (2002)
EN 50173 Ed. 2 (2002)
FCD: Document N739
Next draft (3MV)
50/125
Legacy OF Legacy OF
IT CABLING STANDARDS
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Optical Power Budgets
1610
100
Max. length (m)
OPB max. (dB)
50/125 (OM2) 62.5/125 (OM1)
850 nm
1300 nm
15141 20006.8 12.518571 20008.0 13.02000 20006.0 11.0
1000 550 2753.56 2.6850 nm1000 550 5502.35 2.351300 nm10000 82 331.80 1.60850 nm
10000 300 2.59850 nm
Max. length (m)
OPB max. (dB)
50/125 (OM3)
Token Ring4 18571 20008.0 13.0
EthernetEthernetEthernetEthernet
EthernetToken Ring
Ethernet
10000 300 3002.46 2.46CWDM/1300Ethernet
Mb/s Network λ
Application Optical Fibre
1 Calculated values using 1.5dB of connecting hardware losses
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Measurement Error
PP
PP
Link
Configuration A
99.75% spread (2 x 0.5dB + 3.0dBkm-1 x L)
99.75% spread + ME
99.75% spread - ME
100 200 300 400 500 600 700 800 900 1000
5.0dB
4.0dB
3.0dB
2.0dB
1.0dB
-1.0dBLink length (m)
Optical loss budget
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Typical Results
-0.01
0
0.01
0.02
0.03
0.04
0.05
0.06
-0.5 0 0.5 1 1.5 2
Link attenuation (dB)
% o
f res
ults
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Pass/Fail Indicators
Test equipment that not only
measures but also
ADJUDICATES
Application support based upon:• length (requiring the modal bandwidth of the optical fibre to be input);• measured link/channel loss.
Cabling performance against calculation of optical loss budget based upon:• number and type of joints • length;• measured link/channel loss.
PASS/FAIL INDICATORS ARE VERY SUSCEPTIBLE TO SHORT LENGTH SYNDROME
(measurement error)
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Launch Conditions
Test Cord Launch ConditionsMMF Mandrel Wrap
LASER LSPM EquipmentCladding Mode Stripping
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Test Cord Launch Conditions
n1(r)
n2
n1(r)
n2
n1(r)
n2
Reference measurementcontains unwantedcladding modes.
Test measurement readsHIGH.
Reference measurementdoes not contain allmodes.
Test measurement readsLOW.
Reference measurementdoes not containcladding modes but doescontain all modes.Test measurement readsCORRECTLY.
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
MMF Mandrel Wrap
MMF: not applicable MMF: EN 50346 6MP MMF: ANSI/TIA/EIA B.1
50/12550/125
62.5/12562.5/125
25222017
50/12562.5/125
1520
5 TURNS
50/125 18
62.5/125 17
CableSCOFCableSCOF
CableSCOFCableSCOF
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Cladding Mode Stripping
Source Detector
Cladding modestripper
Cladding modestripper
Mandrel wrap and cladding mode stripper aim to present an equilibrium launch condition
MMF LAUNCH CORDCladding mode stripper
provides “core only” light to detector
MMF TAIL CORD
Removes requirement for bi-directional test
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
LASER LSPM Equipment
n1(r)
n2
Reference measurement does notcontain all modes.
Test measurement reads LOW.
Test results can vary with test leadhandling.
There is an argument to suggest that MMF cabling to support LASER-based applications should be tested with LASER sources
Unless explicitly allowed and documented such equipment should not be used
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
OTDR vs. LSPM
SHORT LENGTH SYNDROMEcalls LSPM measurements into question
(unless measurement error is “allowed for” in adjudication)
OTDRs can be used to assess and measure individual components(subject to appropriate techniques)
COMPONENT UP VERIFICATION MAY BECOME MORE COMMON
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
FIA Documentation Update
INSTALLATION
SAFETY
DESIGNOPTICAL FIBRE CABLING: LAN APPLICATION SUPPORT GUIDE
TESTING OF INSTALLED CABLING:ATTENUATION USING LSPM EQUIPMENT
OPTICAL POWER: SAFETY LEVELS
OPTICAL FIBRE: HANDLING OF PROCESSING CHEMICALS
OPTICAL FIBRE: DISPOSAL OF WASTE
MODELLING TOOLSCABLING STRUCTURES COST MODEL
FIA-TSD-2000-1-1
FIA-TSD-2000-4-2-1
FIA-TSD-2000-5-1
FIA-TSD-2000-5-2
FIA-TSD-2000-5-3
JANUARY 2001
Revision to include mode conditioning cords and 10GBASE-xyz JANUARY 2002
JANUARY 2002
DECEMBER 2001
DECEMBER 2001
TESTING OF INSTALLED CABLING:ATTENUATION USING OTDR EQUIPMENTFIA-TSD-2000-4-2-2 mid 2002
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Question Time
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Conclusions
READ THE CABLING SPECIFICATION
KNOW YOUR LIMITS• which standard?
• which issue?
PLAN FOR FAILURE• can “FAIL”s be expected? • under which conditions?
• what happens next?• agree process with client
TEST CORDS - TEST CORDS TEST CORDS - TEST CORDS
UNDERSTAND THE MARGINS• undertake a channel design review• make sure the client understands it
P. O. Box MT65, LEEDS, LS17 8YD. United Kingdom Tel: +44 (0) 113 232 3721 Fax: +44 (0) 113 232 3724© 2001 The Cabling Partnershipwww.e-readybuilding.comwww.it-cabling.com
e-Ready BuildingNext Generation IT infrastructures
The CablingPartnershipϕ
Introduction
AGENDA
The Status of the StandardsWhat Can We Test?
Copper: The “Real World”
LunchOF: Testing PhilosophiesDuplex and SFF Testing
Gigabit EthernetLaunch Conditions
Question Time
The Differing RequirementsBreak
Copper: Testing Philosophies
OTDR vs. LSPM
Break
ConclusionsClose
Question Time
Close
• full colour copy of presentation• www.it-cabling.com/gendocs/tta.pdf
top related