Huawei TP48200A-D17B3 Troubleshooting Manual page 23

TP48200A-D17B3
Troubleshooting Guide
Figure 2-10 PSU panel
(1) Power LED
Table 2-6 LED description
LED
Power
LED
Protection
LED
Fault LED
Issue 03 (2013-05-06)
(2) Protection LED
Color Normal Abnormal
Status Status
Green Steady Off
on
Yellow Off Steady on
Red Off Steady on
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2 TP48200A-D17B3 Overview
(3) Fault LED
Exception Causes
 The mains supply fails due to no AC
input, AC input overvoltage or AC
input undervoltage.
 The PSU has no power output.
 A prewarning alarm is raised.
Over temperature shutdown occurs
when the environment temperature
exceeds 65° C (149° F).
 The PSU hibernates.
In this case, only the protection LED is
on and the PSU does not report any
alarm.
The PSU has no power output due to
output overvoltage shutdown, fan failure,
overtemperature shutdown, or PSU
failure. If the unavailable power output is
caused by a mains supply failure due to
AC input absence, AC input overvoltage,
or AC input undervoltage, the fault LED
does not illuminate, either.
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