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我公司在承建上海宾馆二十七层高层工程后,根据高层施工的需要,为满足施工中的统一指挥,生产调度,传呼寻人,上下联络需要,於一九八一年初,对如何建设高层施工通讯联络网开始了一项新的探索,通过多次试验和设想,最后选择了以HG型共电话机为通讯分机,并自行设计了一套能适应工地特点的简易电子交换机为通讯总机。供上宾工程试用。一、共电话机的特点共电话机作为通讯中送受话虽及不上无线对讲机的移动灵活,但使用方便,成本
After constructing the 27-storey high-rise project of Shanghai Hotel, according to the needs of high-rise construction, in order to meet the needs of unified command, production scheduling, pager search, and up-down contact in construction, in early 1981, Construction communications network started a new exploration, through several experiments and ideas, and finally chose to HG-type total telephone extension for communications, and to design a set of simple electronic switches to adapt to site characteristics for the communication switchboard. For the guest project trial. First, the characteristics of a total of a total of telephone Telephone as a communication to send and receive Although not on the wireless mobile radio flexibility, but easy to use, cost