许多用户在打电话时遇到听障总以为是话机故障,其实,有些是线路故障。具体有哪些?以下做一简单的介绍。 先说说电话交换机的布线和走线。 程控交换机的总机房配线架到各用户终端线箱之间的通信线采用通信电缆。电缆线路由电缆、电缆配件、电缆支撑物等组成。用来连接电缆的电缆配件有交接箱和分线箱。前者用于电缆和电缆的汇接,后者用 Many users encounter hearing impaired when they call always think it is the phone fault, in fact, some are faulty line. What are the specific? The following to do a simple introduction. First talk about the telephone switch wiring and alignment. Program-controlled switches, the distribution room to the distribution room between the user terminal box using communication cable communication cable. Cable routes from the cable, cable accessories, cable support and other components. The cable accessories used to connect the cables are the transfer box and the distribution box. The former for the convergence of cables and cables, the latter use