Troubleshooting Aids; Verify Pinout; Bits Port Pinouts - Cisco ASR-920-20SZ-M Hardware Installation Manual

Troubleshooting Aids

Certain troubleshooting aids of the Cisco ASR 920 Router enable you to perform these tasks that assist the
troubleshooting process:
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Verify Pinout

Pinouts provide input signal (to the device) and output signal (from the device) information. Bits (BITS) port,
GPS Port (1PPS and 10MHz), USB Console (CONSOLE) port, Time-of-Day (TOD) port, Alarm (ALARM)
port, USB (USB CON and USB MEM) port, and Management Ethernet (MGMT) port pinout information is
provided in the following sections.

BITS Port Pinouts

The following table summarizes the BITS port pinouts.
Table 7: BITS Port Pinouts
Pi n
1
2
3
4
5
6
Verify Pinout, on page 65
Check Optical Fiber Specifications, on page 69
Check Alarm Conditions, on page 69
Check LED Indicators, on page 69
Signal Direction Description
Name
RX Ring Input Receive
Ring
RX Tip Input Receive Tip
— — Not used
TX Ring Output TX Ring
TX Tip Output TX Tip
— — Not used
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