Access the CLI Using the Console 55
Configure Global Parameters 55
Check the Running Configuration Settings 56
Save the Running Configuration to NVRAM 57
Safely Power Down the Device 57
Replace the Power Supply 59
CHAPTER 6
Remove the DC Power Supply 59
Install the DC Power Supply 60
Remove the AC Power Supply 61
Install the AC Power Supply 62
Troubleshooting Aids 65
CHAPTER 7
Verify Pinout 65
BITS Port Pinouts 65
GPS Port Pinouts 66
Time-of-Day Port Pinouts 66
Alarm Port Pinouts 67
Management Ethernet Port Pinouts 67
USB Console Port Pinouts 68
USB MEM Port Pinouts 68
Check Optical Fiber Specifications 69
Check Alarm Conditions 69
Check LED Indicators 69
PWR and STAT LEDs 70
CPU Management Port LEDs 70
SFP LEDs 71
SFP+ LEDs 71
RJ-45 LEDs 72
Power Supply Unit LEDs 72
System–Interface LED Behavior 72
Cisco ASR-920-20SZ-M Aggregation Services Router Hardware Installation Guide
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