改革开放,使我国各行各业迅速与国际接轨,国内各大港业已建成现代化的通信网,为上海港通信的建设提供了宝贵的经验。 由于历史的原因,上海港点多面广,散布在百里浦江两岸,建立一个完整的现代化通信网有很大困难。 根据有关资料的统计,上海港地区80％的话务量是消耗在本系统各单位的内部通信上。由于各作业区有交换机,没有互联直达的传输通道,所以彼此通信皆要通过市话迂回,甚至同属南浦港务公司中的白莲泾码头和开平码头,由于黄浦江横亘其中,同一单位的内部通信都要通过市话拨打对方总机号码,经话务员转接后才能与分机通话,给生产调度带来极大的不便,制约了生产业务的发展。建立上海港通信网正是为了改变这种“有点无线”的局面,面向“信息高速公路”。 自1978年至今,经过16年努力,一个覆盖上海港地区的现代化通信网已初露端倪,展示在世人面前的将是以“交换程控化、传输数字化、长途卫星化、无线集群化”为四大特征的上海港通信新面貌。这个通信网起点高、技术新,适应世界通信技术发展趋势。它有下述九大优点: 1.网络规范 该通信为星形图,以陆家咀电话所为中心汇接张华浜、港务局机关、提兰桥、开平四个电话所(提兰桥、开平电话所缓建,先设微波站过渡),各基层单位小交换机就近汇接至上述四个? With the reform and opening up, all walks of China in our country have quickly become accredited with the rest of the world. The major domestic ports and industries have built modern communications networks, which have provided valuable experience for the construction of Shanghai Port Communications. Due to historical reasons, it is very difficult to set up a complete and modern communications network in Shanghai with a wide range of locations scattered across the Baiyin River. According to the statistics, 80% of the traffic volume in Shanghai port area is consumed by the internal communications of all units of the system. As there is a switchboard in each work area and there is no direct transmission channel connecting to each other, all communication should be bypassed through local telephone calls. Even the Bailianjing Wharf and the Kaiping Wharf belong to Nanpu Port Company. As the Huangpu River runs through it, the internal communication of the same unit Dial the number of the other switchboard through the local telephone number, and then call with the extension after being transferred by the attendant, which brings great inconvenience to the production scheduling and restricts the development of the production business. The establishment of the Shanghai Port Communication Network is to change this kind of “somewhat wireless” situation and to face the “information superhighway.” Since 1978, after 16 years of hard work, a modern communications network covering the area of ​​Shanghai Port has begun to emerge. The show will be preceded by the exchange of program-controlled, digitalized transmission, long-distance satellite and wireless clustering A new feature of the Shanghai port of communication new look. The high starting point of this communication network, new technology, to adapt to the development trend of the world’s communications technology. It has the following nine major advantages: 1. Network Specifications The communication is a star map, with Lujiazui telephone as the center of convergence Zhang Hua Bang, Port Authority, Tilanqiao, Kaiping four telephone (Tilan Bridge , Kaiping phone by the building, the first set of microwave station transition), the grassroots units of small exchange close to the above four?