T1/E1 Port Pinout; Rj48 T1/E1 Port Pinouts - Cisco ASR 903 Installation Manual

Troubleshooting

T1/E1 Port Pinout

RJ48 T1/E1 Port Pinouts

The figure below shows the RJ48 connector wiring for the T1/E1 cable for the interface module. The table
shows the pinout configuration for the RJ4C connectors for both the shielded and unshielded cables for either
T1 or E1.
Figure 120: RJ48 Connector Wiring
The table below summarizes the RJ48 port pinout.
Table 35: RJ48 Port Pinouts
Shielded
Pin
1
2
3
4
5
6
Unshielded
Description Pin Description
Receive Ring 1 Receive Ring
Receive Tip 2 Receive Tip
Receive Shield 3
Transmit Ring 4 Transmit Ring
Transmit Tip 5 Transmit Tip
Transmit Shield 6
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
T1/E1 Port Pinout
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