4
BTS3900 Components
About This Chapter
This describes the components of the BTS3900, which are the BBU3900, RFUs, DCDU-01,
FAN unit, DC/DC power system, AC/DC power system and optional modules. The AC/DC
power system is configured in the BTS3900 cabinet (220 V); the DC/DC power system is
configured in the BTS3900 cabinet (+24 V).
The Double Radio Frequency Unit (DRFU) is a dual-density RF unit. A DRFU processes two
carriers.
One WCDMA Radio Filter Unit (WRFU) supports 2 carriers or 4 carriers.
One Multi-Mode Radio Frequency Unit (MRFU) supports a maximum of six carriers.
LTE Radio Frequency Units (LRFUs) work in Frequency Division Duplex (FDD) mode.
The Direct Current Distribution Unit-01 (DCDU-01) supplies DC power to each component in
the cabinet.
A fan box consists of a fan tray, four fans, and an FMU.
The GSM Antenna and TMA control Module (GATM) controls the antenna and TMA.
BTS3900
Hardware Description
4 BTS3900 Components
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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