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异步串行数据通信是计算机间远程通信的一个重要方式,其传输设备一般常采用调制——解调器。本文在扼要叙述RS异步串行通信标准基础上,着重从功能上、原理上介绍一种新型长距离通信装置——远程数据收发器。实践证明该收发器价格低、可靠性高、使用简便、较适合局部地区范围内(30～50公里以内)的异步串行数字通信,目前全国已有近百家用户在使用这一装置。
Asynchronous serial data communication is an important way of remote communication among computers. Its transmission equipment generally adopts a modulation-demodulator. Based on a brief description of RS asynchronous serial communication standard, this paper introduces a new type of long distance communication device - remote data transceiver functionally and principally. Practice has proved that the transceiver is low cost, high reliability, easy to use, more suitable for local areas within the range of 30 to 50 km asynchronous serial digital communications, the country has nearly 100 users are using this device.