Installation guide

A-30
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Appendix A System Specifications
Cabling Summary
Subrate (SR) Cabling
This section lists general data for the subrate cabling and the pinouts for different types of interfaces that
support subrate operation. Table A-20 contains general specifications for the subrate cabling.
Table A-21, Table A-22, and Table A-23 list the pinouts for V.11, V.35, and EIA/TIA-449 interfaces,
respectively. Table A-24 lists T3 connector pin assignments.
Table A-20 Subrate (SR) Cabling
Cable Parameter Description
Cable Type 100–120-ohm twisted pair telephone cable.
Cable Connector V.11, DB-15 subminiature, male.
V.35, 34-pin M block (Winchester), male.
MIL188/RS-449, DB-37 subminiature, male.
See Table A-21 through Table A-23 for pinouts.
Max. Cable Length Depends on operating speed. Ranges are 400 meters for 256 kbps
though 50 meters for 1.92 Mbps.
Table A-21 V.11 Connector Pinouts
Pin No. Description
1 Shield ground
2TX-A
9TX-B
3CA
10 CB
4RX-A
11 RX-B
5IA
12 IB
6SA
13 SB
7Not used
8 Signal ground
14 Not used
15 Not used