Use on public data networks of data terminal equipment (DTE)which is designed for interfacing to asynchronous duplex V-series MODEMS
IDT ITU-T X.20 bis:1988
中国通信标准化协会
本标准规定了对原设计为与异步双工V系列调制解调器接口的数据终端设备(DTE)在接入公用数据网络时的要求。
本标准适用于DTE(原设计与双工V系列起止传输的调制解调器接口)和公用数据网上的DCE之间的接口。
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