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BTS3900
Hardware Description
Module
Idle space
3.1.2 Board Configurations of the BBU3900
This section describes the board configurations of the BBU3900 in the GSM Only (hereinafter
referred to as GO), UMTS Only (hereinafter referred to as UO), LTE Only (hereinafter referred
to as LO), GSM+UMTS (hereinafter referred to as GU), GSM+LTE (hereinafter referred to as
GL), and UMTS+LTE (hereinafter referred to as UL) scenarios.
Slots in the BBU3900
The board configurations of the BBU3900 in GO mode, BBU3900 in GU mode, BBU3900 in
UO mode, BBU3900 in LO mode, BBU3900 in GL mode, and BBU3900 in UL mode are the
same, as shown in
Figure 3-4 Slots in the BBU3900
BBU3900 in GO Mode
Table 3-2
Issue 04 (2011-02-15)
Optional or
Maximum
Mandatory
Number of
Boards or
Modules
Configured
in a Single
Cabinet
-
-
Figure
3-4.
describes the principles for configuring the boards in the BBU3900 in GO mode.
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Copyright © Huawei Technologies Co., Ltd.
3 BTS3900 Hardware Configuration
Remarks
l There is a 3 U idle space in the BTS3900
cabinet (-48 V DC) for customized
equipment.
– The customized equipment must be
able to work properly at a temperature
equal to or higher than 55
– The BTS3900 cabinet (-48 V DC)
cannot supply power to customized
transmission equipment.
l There is no idle space in the BTS3900
cabinet (+24 V DC).
l There is no idle space in the BTS3900
cabinet (AC).
O
C.
3-5
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