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NEC(日本电气公司)同巴西电话电报公司签订了1500万美元的合同,建造一个能覆盖巴西30个城市的数字数据通信网. NEC说,这项合同是在一场国际性的夺标中得到的,这场争夺包括西德的西门子公司(SiemesAG),荷兰的菲利浦公司(philips)和美国的国际电话电报公司(ITT). 本网由巴西的EmpesaBraTelcommnieaocs设计,将为巴西30个主要城市约40000个可能的用户提供点对点数据通信线路.NEC安排在1981年完成这项网络的建设.除用户用的调解器(Modem)和现存的频分多路线路外,NEC将提供所有设备.NEC的设备包括:在FDM群带中传送
NEC (NEC) signed a $ 15 million contract with Brasil Telegraph and Telephone to build a digital data communications network that will cover 30 cities in Brazil. NEC said the contract was awarded on an international winning streak Including Siemes AG in West Germany, philips in the Netherlands and ITT in the United States, designed by Brazil’s Empesa Braintcommnieaocs and will be home to 30 major Brazilian cities 40000 possible users to provide peer-to-peer data communications lines.NEC is scheduled to complete the construction of the network in 1981. In addition to the user’s modem (Modem) and the existing frequency division multiple access, NEC will provide all the equipment .NEC’s Equipment includes: Transmission in FDM cluster bands