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1·As the key part of the trunk amplifier and repeater, power amplifier plays an important role in these systems.

功率放大器作为干线放大器和直放站中的关键部件，其性能对系统有较大影响。

2·Optical Receiver; CATV products; optical Transmitter; trunk Amplifier; Subscriber Amplifier; Spliter; Taps; Optical Relay;

光纤放大器； 光接收机； 光发射机； 分配器；

3·Trunk amplifier is a important part of mobile communication network. We mainly discussed the design plan of the software and hardware architecture of the trunk amplified monitoring system.

干线放大器是移动通信网络的重要组成部分，我们主要论述了干放监控系统的软件结构设计方案。

4·Bridge amplifier an amplifier installed on a CATV trunk cable to feed branching cables.

桥式放大器CATV中继线电缆中安放的一种放大器，用于馈接分支电缆。