T1/E1 Interface Module Rj48C Port Pinnouts; Serial Cable Pinouts - Cisco ASR 903 Hardware Installation Manual

Troubleshooting
The table below shows the wiring schematic of the cable used to connect the 32 T1/E1 interface module to
the rear of the patch panel.
Figure 81: 32 T1/E1 Wiring Schematic of Cable between 32 T1/E1 Interface and Patch Panel

8 T1/E1 Interface Module RJ48C Port Pinnouts

Table 26: RJ48C Connector Pin-out for 8 T/E1 Interface Module
Pin
1
2
3
4
5
6
7
8

Serial Cable Pinouts

The following sections summarize the pinouts for 14-port serial interface module when used with the cable
types specified in Connecting Serial Cables.
Signal Direction
RX_TIP Input
RX_RING Output
TX_TIP Input
TX_RING Output
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
8 T1/E1 Interface Module RJ48C Port Pinnouts
Description
Receive Tip
Receive Ring
Not Connected
Receive Tip
Receive Ring
Not Connected
Not Connected
Not Connected
155