3.1 BBU3900 Components
This section describes the boards and modules of the BBU3900 in terms of their configuration
rules, functions, ports, indicators, and DIP switches.
3.1.1 BBU3900
The BBU3900, which has a case structure, is 19 inches wide and 2 U high.
The dimensions of the BBU3900 are 86 mm x 442 mm x 310 mm (3.39 in. x 17.4 in. x 12.2 in.)
(H x W x D), as shown in Figure 3-1.
Figure 3-1 BBU3900
The Electronic Serial Number (ESN) is a unique identifier of a Network Element (NE). It is used
during base station commissioning.
l If there is a label on the FAN unit of the BBU, the ESN is printed on the label and a mounting
ear of the BBU, as shown in Figure 3-2.
Figure 3-2 ESN (1)
l If there is no label on the FAN unit of the BBU, the ESN is printed on a mounting ear of
the BBU, as shown in Figure 3-3.
BTS3900C (Ver.C)
Hardware Description 3 BTS3900C Modules
Issue 03 (2013-05-27) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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