TX2550 M4 Operating Manual 71
Starting up and operation
6.2.2.2 Indicators on PSUs (slide-in units)
Figure 15: PSU status indicator (AC PSU)
Pos. Indicator Status Description
1
PSU status
indicator
green
flashing
The server is switched off, but mains voltage
is present (standby mode).
green on The server is switched on and operating
properly.
orange
flashing
An overload has been detected. The
PSU is
still running, but failure might be imminent.
orange on
An PSU failure has been detected.
Possible causes:
– Over/under voltage
– Overheating
– Fan failure
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