Ruijie RG-S6910-3C Hardware Installation And Reference Manual page 8

4 Commissioning ................................................................................................................................ 42
4.1 Setting Up the Configuration Environment .............................................................................. 42
4.2 Powering on the Device ........................................................................................................... 44
4.2.1 Checklist Before Power-on .......................................................................................... 44
4.2.2 Power-on ...................................................................................................................... 45
4.2.3 Checklist After Power-on ............................................................................................. 45
5 Monitoring and Maintenance ........................................................................................................... 46
5.1 Monitoring ................................................................................................................................ 46
5.1.1 Monitoring the LEDs .................................................................................................... 46
5.1.2 Running the CLI Commands ....................................................................................... 46
5.2 Maintenance ............................................................................................................................ 46
5.2.1 Replacing the Power Module ....................................................................................... 46
5.2.2 Replacing the Fan Module ........................................................................................... 47
5.2.3 Replacing the Lithium Battery ...................................................................................... 47
5.2.4 Replacing the Fuse ...................................................................................................... 47
6 Troubleshooting ............................................................................................................................... 48
6.1 Flowchart.................................................................................................................................. 48
6.2 Common Issues ....................................................................................................................... 49
6.2.1 Forgetting Login Password .......................................................................................... 49
6.2.2 AC Power Module Failure ............................................................................................ 49
6.2.3 Fan Module Not Rotating ............................................................................................. 49
6.2.4 No Output on the Console ........................................................................................... 49
6.2.5 Garbled Output on the Console ................................................................................... 49
6.2.6 Optical Port Linkdown .................................................................................................. 50
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