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Maintenance and troubleshooting
Fixed power module failure
The switches (except the S5560S-28F-SI, S5560S-28DP-SI, and S5130S-28F-SI models) use fixed
power modules. The S5130S-28S-HPWR-LI, S5130S-52S-PWR-LI, S5120V2-28P-HPWR-LI,
S5120V2-52P-PWR-LI, S5024PV3-EI-HPWR, S5048PV3-EI-PWR, and S3100V3-28TP-PWR-SI
switches support AC power input, RPS power input, and concurrent AC and RPS DC inputs. The
other switch models support only AC power input.
To identify a power failure on the switch, examine the system status LED and the RPS status LED on
the switch.
Table 10 Description for the power failure indication LEDs
LED Mark Status Description
System status LED SYS Off The switch is powered off.
RPS status LED
(available only on the
S5130S-28S-HPWR-LI,
S5130S-52S-PWR-LI,
S5120V2-28P-HPWR-LI,
S5120V2-52P-PWR-LI,
S5048PV3-EI-PWR, and
S3100V3-28TP-PWR-SI
switches)
RPS
Steady green Both the RPS input and the AC input are normal.
Steady yellow Normal RPS input, no or abnormal AC input.
Off No or abnormal DC input.
Input failure on an AC-powered switch
Symptom
The system status LED on an AC-powered switch is off.
Solution
To resolve the issue:
1. Verify that the AC power cord is securely connected to the switch, and the AC-input power
receptacle on the switch and the connected AC power outlet are in good condition.
2. Verify that the AC power source is operating correctly.
3. Verify that the operating temperature of the switch is in the acceptable range, and the power
module has good ventilation. Over-temperature can cause the power module to stop working
and enter protection state.
4. If the issue persists, contact H3C Support.
Input failure on an RPS-powered switch
Symptom
The system status LED or RPS status LED on the RPS-powered switch is off
Solution
To resolve the issue:
1. Verify that the switch is securely connected to the RPS.
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