Patch Panel Pinout; Patch Panel Cabling For Redundancy - Cisco ASR 907 Hardware Installation Manual

Patch Panel Pinout

• If both T1/E1 interfaces are connected to their patch panels in a different configuration (TX to Transmit
Warning To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect
the T1/E1 ports only to intra-building or unexposed wiring or cable. The intrabuilding cable must be shielded
and the shield must be grounded at both ends. The intra-building port(s) of the equipment or subassembly
must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are
designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE)
and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient
protection in order to connect these interfaces metallically to OSP wiring.
Patch Panel Pinout
Given below are the pinout information for the regular crossover and the straight-through cable patch panel.
Table 10: Pinout Details
Pin
#
1
2
3
4
5
6
7
8

Patch Panel Cabling for Redundancy

You can connect the patch panels with the interface modules for redundancy, using the Y-cables. The Y-cable
stub lengths are reduced, so that the cable does not exceed from the rack spacer. The Y-cables are numbered
based on the different stub length. Cable lengths differ for even numbered and odd numbered slots in the
chassis.
Note Do not try to interchange the cables as the length may vary based on odd and even slots.
Cisco ASR 907 Router Hardware Installation Guide
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and RX to Receive on one interface, and TX to Receive and RX to Transmit on the other interface), use
a T1 straight-through cable (standard RJ45 patch cable) to connect the patch panels.
Crossover Straight-through
Receive Tip Transmit Tip
Receive Ring Transmit Ring
— —
Transmit Tip Receive Tip
Transmit Receive Ring
Ring
— —
— —
— —
Installing the Cisco ASR 907 Router