Figure 7-86 Power-on check in the outdoor scenario with DC power supply (BBU installed in
a TMC11H)
LED Status and Output Voltage Check
l The normal status of the LEDs on a CMUA is as follows:
RUN LED: blinking
ALM LED: off
l The DC output voltage of a DCDU-03B ranges from -43.2 V DC to -57 V DC.
l 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
DBS3900 (Ver.B)
Installation Guide
7 Outdoor Scenario with DC Power Supply (BBU Installed
in a TMC11H)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
214
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