Upeu - Huawei BTS3900C Hardware Description

BTS3900C (Ver.C)
Hardware Description
Silkscreen

3.1.12 UPEU

The universal power and environment interface unit (UPEU) for the BBU3900 converts -48 V
DC or +24 V DC power into +12 V DC power.
Panel
The UPEU is classified into four types: universal power and environment interface unit type a
(UPEUa), universal power and environment interface unit type b (UPEUb), universal power and
environment interface unit type c (UPEUc), and universal power and environment interface unit
type d (UPEUd). The UPEUa, UPEUc, and UPEUd convert -48 V DC power into +12 V DC
power, and the UPEUb converts +24 V DC power into +12 V DC power.
3-32,
UPEUd, respectively.
Figure 3-31 UPEUa panel
(1) BBU power switch
Figure 3-32 UPEUb panel
(1) BBU power switch
Issue 03 (2013-05-27)
Color
Figure 3-33, and Figure 3-34
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Status
Steady off
show the panels of the UPEUa, UPEUb, UPEUc, and
(2) 7W2 connector
(2) 7W2 connector
3 BTS3900C Modules
Description
There is no power
supply.
Figure 3-31, Figure
70