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干线放大器是无线通信覆盖中常用的一种设备。为了保证通信网络中设备的正常运行,通常运营商会建立统一的监控系统。对于安装距离较近的一群干放,一般以主从机的方式来接入监控系统以节约设备的成本。主从干放之间的硬件和软件通信机制成为保证通信正常的设计重点。硬件机制的重点在于保证主从干放之间的通信链路畅通,并且在任意一级干放异常的情况下,不影响主干放和其他从干放之间的通信。软件机制的重点在于通信上的冲突避免和链路维护。
Trunk amplifiers are commonly used in wireless communication coverage. In order to ensure the normal operation of equipment in the communication network, operators usually set up a unified monitoring system. For a group of dry installation close to the installation, the general approach to master and slave access to the monitoring system to save equipment costs. Master and slave between the hardware and software communication mechanism to ensure the normal communication design focus. The key point of the hardware mechanism is to ensure that the communication link between the master and the slave is unobstructed, and the master and slave communicate with each other at any level without affecting the master. Software mechanisms focus on communication collision avoidance and link maintenance.