Figure 3-10 Configurations of cabinets with -48 V DC power supply
3.3 Installation Clearance Requirements for the BTS3900A
The BTS3900A supports three installation modes: single cabinet installation, combined cabinet
installation, and stack cabinet installation.
When two cabinets are combined, the minimum distance between the cabinets is 40 mm, and
the maximum distance between the cabinets is 150 mm. If the Noise Reduction Module (NRM)
is installed, the distance between the cabinets is 150 mm.
Figure 3-11 shows the installation clearance requirements for the cabinet.
Figure 3-11 Cabinet installation clearance requirements (plan view)
NOTE
The type of the cabinet in Figure 3-11 can be RFC, TMC11H, or IBBS200D. The installation clearance
requirements for the IBBS200T are the same as those shown in Figure 3-11. The plan view of the IBBS200T,
however, is different from that of other cabinets. Therefore, the installation clearance requirements for the
IBBS200T are not described.
BTS3900A(Ver.B)
Installation Guide 3 Information About the Installation
Issue 01 (2011-10-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
17
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