5-5
Cisco ASR 903 Router Hardware Installation Guide
OL-25178-05
Chapter5 Troubleshooting
Pinouts
Figure 5-1 shows the wiring schematic of the cable used to connect the T1/E1 interface module to the
rear of the patch panel.
Figure5-1 Wiring Schematic of Cable between T1/E1 Interface and Patch Panel
Serial Cable Pinouts
The following sections summarize the pinouts on the serial interface module when used with the cable
types specified in Connecting Serial Cables, page3-45.
Line 15 61 TX_RING_P16 28 1 57 RX_RING_P16 28 4
11TX_TIP_P16327RX_TIP_P1635
Table5-6 T1/E1 Interface Pinouts (continued)
Line
Board
PIns Signal Name
Telco
TX
Jack
Pin
Board
Pins Signal Name
Telco
RX
Jack
Pin
343344