Huawei Airbridge DBS3900 Product Description page 17

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