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| TB/T 1693-1995 Railway Telephone Switching Network - Signal Interface of Automatic Telephone Exchanger (English Version) |
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Detail of TB/T 1693-1995
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Introduction of TB/T 1693-1995
本标准规定了铁路电话交换网自动电话交换机间传送信号时的模拟接口条件。对交换机与长途接续台、记录问询台连接时的信号接口也作了规定。
本标准适用于下述接口点；
a)交换机与传输设备（音频线对、载波终端设备、脉码调制复用设备等）间；
b)交换机与信号转换设备间；
c)信号转换设备与传输设备间；
b）长途接续台、记录问询台与交换机或信号转换设备间；
Contents of TB/T 1693-1995