Cisco ASR-920-12SZ-A User Manual

CHAPTER 6
Troubleshooting Aids
Certain troubleshooting aids of the Cisco ASR 920 Router enable you to perform these tasks that assist the
troubleshooting process:
• Verify Pinout, on page 65
• Check Optical Fiber Specifications, on page 69
• Check Alarm Conditions, on page 69
• Check LED Indicators, on page 69
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 11: BITS Port Pinouts
DescriptionDirectionSignal
Name
Pin
Receive
Ring
InputRX Ring1
Receive TipInputRX Tip2
Not used——3
TX RingOutputTX Ring4
TX TipOutputTX Tip5
Not used——6
Cisco ASR-920-12SZ-A and Cisco ASR-920-12SZ-D Aggregation Services Router Hardware Installation Guide
65

Cisco ASR-920-12SZ-A Specifications

General

Brand	Cisco
Model	ASR-920-12SZ-A
Category	Network Router
Language	English