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RRU3942&RRU3642
Installation Guide
Figure 10-1 RRU power-on check process
(a) The normal input voltage of an RRU is -48 V DC. The voltage of the external power supply should range
from -36 V DC to -57 V DC.
(b) The RUN indicator on the RRU is on for 1s and off for 1s. The ALM indicator is steady off.
Issue 07 (2013-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10 Powering On an RRU
116
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