Introduction To The Rru3908 - Huawei RRU3908 V2 Hardware Description

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RRU3908 V2

Hardware Description

About This Chapter

The RRU is the outdoor remote radio unit.

The RRU3908 performs the following functions:

2.1 Physical Exterior

The RRU has a modular structure. The external ports of the RRU are located at the bottom and

in the cabling cavity of the RRU.

2.2 Panels of the RRU

The RRU module has a bottom panel, a cabling cavity panel, and an area attached with LEDs.

2.3 LEDs on the RRU

The six LEDs on the RRU are used to display the running status of the RRU.

Issue 02 (2010-10-25)

Introduction to the RRU3908

Receives downlink baseband data from the BBU and transmits uplink baseband data to the

BBU for communication between the RRU and the BBU.

Receives the RF signals from the antenna system, down-converts the RX signals to

Intermediate Frequency (IF) signals, perform amplification, and analog-to-digital (A/D)

conversion. The TX channel performs shape filtering of the downlink signals, digital-to-

analog(D/A) conversion, and up-conversion of RF signals to transmit band.

Multiplexes RX and TX signals to enable these signals to share the same antenna path, and

filters RX and TX signals.

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2 Introduction to the RRU3908

2-1

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