Huawei DBS3900 Installation Manual page 445

DBS3900 (Ver.B)
Installation Guide
LED Status and Output Voltage Check
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Issue 06 (2011-09-15)
The DC output voltage of a DCDU-03B ranges from -43.2 V DC to -57 V DC.
The normal status of the LEDs on a GTMU, WMPT, WBBP, LMPT, LBBP, and UTRP is
as follows:
– RUN LED: on for 1s and off for 1s
– ALM LED: off
– ACT LED: on
RUN LED on the UPEU: on
STATE LED on the FAN unit: blinking green slowly (on for 1s and off for 1s)
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12 Indoor Scenario with DC Power Supply (BBU Installed in
a 19-Inch Rack)
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