Airbridge DBS3900 CDMA Base Station
Product Description
1 Overall Structure of the DBS3900
Issue 11 (2010-06-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1-5
Module
Expansion
Description
Function
UPEU Universal
Power
and
Environment
Interface Unit
It is the universal
power and
environment
interface unit.
It converts -48 V DC or +24 V
DC to +12 V DC and provides
environment monitoring signal
ports for the BBU3900.
USCU Universal
Satellite Card
and Clock Unit
It is the universal
satellite card and
clock unit.
It provides the input port for
external signals (including
satellite clock signals), and
provides synchronization clock
signals for the BBU3900 and for
the RF modules connected to the
BBU3900.
Physical Structure of the RRU3606
The RRU3606 is of two types, that is, the DC RRU3606 and the AC RRU3606, as shown in
Figure 1-5
and
Figure 1-6
.
Figure 1-4
DC RRU3606
