Functional Structure - Huawei Airbridge BTS3612A-1900 Technical Manual

Technical Manual
Airbridge BTS3612A CDMA Base Station
The battery subrack can be configured with storage batteries or DC lightning
protector/wave filter, based on actual configuration requirements.
Other devices
A lightning protection board and an auxiliary cabinet secondary power switch box are
configured between the transmission equipment subrack and the power supply
subrack.
E1 Surge Protector (BESP) or SDH surge protector can be used, according to the
transmission equipment configured.
The secondary power switch box is used to control the power supply to the PSU
III. Cabinet door
Temperature-control device, such as air conditioner or heat exchanger, are equipped
on the cabinet door.

1.2 Functional Structure

Functionally, the BTS3612A system is composed of the baseband subsystem, Radio
Frequency (RF) subsystem, antenna & feeder subsystem, and power & environment
monitor subsystem, as shown in Figure 1-2.
Um
interface
MS
220V AC
or
110V AC
Figure 1-2 BTS3612A system structure
Standard space is reserved in the cabinet to accommodate transmission equipment
such as microwave and SDH so as to support different networking modes.
The following chapters will detail each subsystem of BTS3612A.
Radio Frequency
subsystem
Antenna & feeder
subsystem
Power & environment monitor subsystem
BTS3612A
1-3
System Principle
Chapter 1 Overall Structure
Baseband Abis
subsystem interface
BSC
.
AC/DC