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本文介绍了珠江三角洲专用通信网的基本技术情况,这种建网方式可供公安、电力、交通、航运等部门组建专用通信网时参考。本文还详细解释了爱立信无线电公司(ERICSSON RADIO SYSTEMS AB)移动无线电4040系统的信令变换过程,对搞清同类网路的工作原理会有一定帮助,亦可供使用同类设奋的工程技术人员分析、判断网路故障时参考。
This article introduces the basic technical conditions of the special communication network in the Pearl River Delta, which can be used as a reference for public security, electric power, transportation and shipping departments to form a private communication network. This article also explains in detail the signaling transformation process of the 4040 system of the mobile radio Ericsson Radio Systems AB. It will help to find out the working principle of the same type of network and also be used by engineers and technicians of the same kind. , Judging the network failure reference.