T1/E1 Cable Connectors; Patch Panel Cabling For Redundancy - Cisco ASR 903 Installation Manual

T1/E1 Cable Connectors

T1/E1 Cable Connectors
Figure 87: T1/E1 Cable Connector
One end of the cable (see the figure above) has a 68-pin connector that plugs into the T1/E1 interface module
and the other end of the cable with a 68-pin connector is connected to a RJ48, AMP64 or a DIN patch panel.
Use the thumbscrews on either side of the connector to secure the cable to the interface.
For information about the pinout of the cable connecting the T1/E1 interface to the rear of the patch panel,
see Troubleshooting.

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.
Table 20: Y-Cable for Redundancy
Bundle PID
CABLE-16TDM-R1EL1
CABLE-16TDM-R1EL2
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
122
Cable Marking
T1/E1-Cable S-3
T1/E1 Cable S-2
T1/E1 Cable S-1
T3/E3-Cable M-3
T3/E3-Cable M-2
T3/E3-Cable M-1
Installing the Cisco ASR 903 Router
Description
16-port cable for TDM CEM Interface Module,
42 inches cable length and 10 inches stub length,
even slot
16-port cable for TDM CEM Interface Module,
42 inches cable length and 7.5 inches stub length,
even slot
16-port cable for TDM CEM Interface Module,
42 inches cable length and 6.5 inches stub length,
even slot
16-port cable for TDM CEM Interface Module,
62 inches cable length and 10 inches stub length,
even slot
16-port cable for TDM CEM Interface Module,
62 inches cable length and 7.5 inches stub length,
even slot
16-port cable for TDM CEM Interface Module,
62 inches cable length and 6.5 inches stub length,
even slot