Chapter 5 Troubleshooting; Pinouts; Bits Port Pinout - Cisco ASR 903 Installation Manual

Troubleshooting
The following sections provide information for troubleshooting problems on the Cisco ASR 903 Router.
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Pinouts

The following sections describe the pinouts for the Cisco ASR 903 Router interfaces:
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BITS Port Pinout

Table 5-1
Table 5-1
Pin
1
2
3
4
OL-25178-03
Pinouts, page 5-1
LED Summary, page 5-8
BITS Port Pinout, page 5-1
GPS Port Pinout, page 5-2
Time of Day Port Pinout, page 5-2
Alarm Port Pinout, page 5-3
Console/Aux RJ45 RS232 Serial Port Pinout, page 5-3
T1/E1 Port Pinout, page 5-4
Serial Cable Pinouts, page 5-5
Management Ethernet Port Pinout, page 5-7
USB Console Port Pinout, page 5-7
Fiber-Optic Specifications, page 5-8
summarizes the BITS port pinout.
BITS Port Pinout
Signal Name Direction
RX Ring Input
RX Tip Input
TX Ring Output
C H A P T E R
Description
Receive Ring
Receive Tip
Not used
TX Ring
Cisco ASR 903 Router Hardware Installation Guide
5
5-1