Optical fiber transmission has also become the major means of communication, particularly in the trunkcommunicationnetwork.
光纤传输也已成为当前通信，特别是干线通信的主要手段。
2
Trunk amplifier is a important part of mobile communicationnetwork. 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。
3
The hardware of the system is built on the layout network of the doorphone system, and CAN BUS is used as the trunk line of communication to improve the real time performance and reliability.