HP V1910 Getting Started Manual - Page 43

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HP V1910 Getting Started Manual

Power supply failure

The HP V1910-24G-PoE (365W) Switch JE007A adopts AC power input, RPS power input, or both RPS
and AC power inputs. Other V1910 switches adopt AC power input only.
You can look at the power LED and the RPS status LED on the front panel of the switch to identify a power
system failure.
AC input
If the switch is AC powered, look at the system status LED to identify a power failure. If the system status
LED is off, an AC input failure has occurred. Check the following items:
The AC power cord is well connected to the switch, and the AC receptacle on the switch and the AC
power receptacle are normal.
The external AC power supply system is correctly working.
The operating temperature of the switch is normal, and the power module has good ventilation
(over-temperature can cause a power module to stop working and enter the protection state).
RPS input
If the switch is RPS powered, look at the system status LED or RPS status LED to identify a power failure.
If the system status LED or RPS status LED is off, an RPS input failure has occurred. Check the following
items:
The switch is well connected to the external RPS power supply.
The external RPS is correctly working.
The operating temperature of the switch is normal, and the power module has good ventilation
(over-temperature can cause the power module to stop working and enter the protection state).
Concurrent AC and RPS inputs
If the switch is concurrently powered by an RPS and an AC power supply, look at the power LED and RPS
status LED to identify an RPS or AC input failure.
If the power LED is off, the AC power supply and the RPS both have an input failure.
1.
Check the following items:
The AC power cord is well connected to the switch, and the AC receptacle on the switch and the
connected AC power receptacle are normal.
The AC external power supply system is normal.
The switch is well connected to the external RPS.
The external RPS is correctly working.
The operating temperature of the switch is normal, and the power module has good ventilation
(over-temperature can cause the power module to stop working and enter the protection state).
If the power LED is on but the RPS status LED is off, an RPS input failure has occurred.
2.
Check the following items:
The switch is well connected to the external RPS power supply.
The external RPS is correctly working.
NOTE:
If the problem persists, contact your local sales agent or service engineer.
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