Zte ZXC10 BTSB I1, Installation Manual

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12-1
12 Board Installation
Summary:
z BTSB board types
z Installation and replacement of BTSB boards
z Installation sequence of BTSB boards
12.1 BTSB Board Types
The baseband system consists of the following boards:
The CHM implements Channel Elements (CEs) processing. The CE processing
modules of each baseband system form a series of baseband processing sharing pools.
The RIM implements forward signal summary and reverse signal distribution as the
interface between baseband and radio frequency. The RIM can run in active/standby
mode.
The CCM implements control over base stations and switching for the base station
networks. It can run in active/standby mode.
The DSM acts as the ABIS interface to the BSCB, and can run in active/standby mode.
The SNM acts as the SDH interface, and can run in active/standby mode.
The SAM monitors the environment.
The GCM provides an accurate GPS clock for the base station. It can run in
active/standby mode.
The BIM base station interface module implements interface transfer between the
active and standby BDSs, between baseband and radio frequency, and between the
basest ion and the base station controller.
The PD distributes the power.
The Radio Frequency System (RFS) is located between the baseband system and the
mobile station to implement air RF interface in the air, and data interface to the