No. Component Optional/
Mandatory
Maximum
Quantity in a
Single
Cabinet
Description
6 Fan assembly Mandatory 2 The fan
assembly
dissipates heat
from the
cabinet,
including outer
air circulation
fan assembly
and inner air
circulation fan
assembly. Two
fan assemblies
are separately
installed at the
left bottom and
the left top in the
OMB.
7
PDU10D-01 Mandatory 1 The power
distribution unit
10D-01
(PDU10D-01)
provides -48 V
DC power for all
components in
the cabinet.
8
RRU subrack Mandatory 1 The RRU
subrack houses
the RRU.
9 RRU Mandatory 1 The RRU
processes and
forwards RF
signals between
the BBU and
antenna system.
10 AC surge
protection box
Mandatory 1 The AC surge
protection box
provides surge
protection for
the input AC
power.
BTS3900C (Ver.C)
Hardware Description 2 BTS3900C Cabinet
Issue 03 (2013-05-27) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7
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