H3C S5150-EI Series Installation Manual

Also see for S5150-EI Series: Troubleshooting guide Configuration guide Command reference

Contents

39Maintenance and troubleshootingPower module failureFixed power module failureThe S5150X-16ST-EI switch uses fixed power modules, and supports three power input modes: ACinput, RPS DC input, and concurrent AC and RPS DC inputs.Look at the system status LED and the RPS status LED of the switch to identify power system failure.Table 9 Description for the power failure indication LEDsLED Mark Status DescriptionSystemstatusLEDSYS Off The switch is powered off.RPSstatusLEDRPSSteady green The AC input is normal, and the RPS is in position or operatingcorrectly.Steady yellow RPS power input is normal, but AC input has failed or AC input isnot connected.Off No RPS is connected.AC input• SymptomThe system status LED is off.• SolutionTo resolve the problem:a. Verify that the AC power cord is securely connected to the switch, and the AC-input powerreceptacle on the switch and the connected AC power outlet are in good condition.b. Verify that the external AC power system is operating correctly.c. Verify that the operating temperature of the switch is in an acceptable range, and the powermodule has good ventilation. Over-temperature can cause the power module to stopworking and enter protection state.d. If the problem persists, contact H3C Support.RPS DC input• SymptomThe system status LED or RPS status LED is off.• SolutionTo resolve the problem:a. Verify that the switch is securely connected to the RPS.b. Verify that the RPS is operating correctly.c. Verify that the operating temperature of the switch is in an acceptable range, and the powermodule has good ventilation. Over-temperature can cause the power module to stopworking and enter protection state.d. If the problem persists, contact H3C Support.