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User Manual
Airbridge cBTS3612 CDMA Base Station
This chapter introduces cBTS3612 system configuration, based on which some
typical configuration examples are given. With this chapter, users can get a basic
understanding of cBTS3612 configuration principle.
5.1 Overview
BTS consists of the following parts in physical structure:
Power distribution box
l
Baseband subrack
l
Fan subrack
l
Power supply subrack
l
RF subrack
l
RLDU subrack
l
CDU/DFU subrack
l
BTS is designed to accommodate 36 sector-carriers in full configuration, and
supports the combination of 3 cabinets (one basic cabinet and two extended
cabinets). The difference between a basic cabinet and an extended cabinet is that a
basic cabinet needs a baseband subrack and f a n subrack The basic cabinet and
extended cabinet are connected with optical fibers.
One cabinet supports as many as 12 sector-carriers. Main configuration modes
include omni cell, 3-sectors and 6-sectors configurations.
5.1.1 Basic/Extended Cabinet Configuration
Configuration of a basic cabinet is as shown in Figure 5-1.
5 System Configuration
5-1
System Description
5 System Configuration
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