论文部分内容阅读
一、概述GSC—441型光缆数据传输装置,是一种采用光导纤维技术传送数字信号的装置。它是为解决计算机与其外部设备之间,计算机与计算机之间的串行数据传输,以及为解决在电磁干扰严重的情况下传送数字信号而研制的。它适用于需要电位隔离,或电磁干扰严重场合,进行中、短距离数字信号的传输,最大传输距离不小于5公里。本装置的重要特点是采用直流耦合电路,能传送DC～2Mb/S的单极性数字信号。因而,它更具有广泛的适应性。除用于计算机领域的数据传输外,本装置还可用于工业自动化控制,遥控、遥测等。还可传送PCM一次群数字信号。本机结构简单,小巧轻量,低功耗,抗
First, an overview GSC-441 optical cable data transmission device, is a device that uses optical fiber technology to transmit digital signals. It is to solve the computer and its external devices, computer and computer between the serial data transmission, as well as to solve the serious electromagnetic interference in the transmission of digital signals and developed. It applies to the need for potential isolation, or serious electromagnetic interference occasions, the transmission of short-range digital signals, the maximum transmission distance of not less than 5 km. The important feature of the device is the use of DC-coupling circuit, can send DC ~ 2Mb / S unipolar digital signal. Therefore, it is more widely adaptable. In addition to data transmission for the computer field, the device can also be used for industrial automation control, remote control, telemetry and so on. PCM can also send a group of digital signals. The machine structure is simple, compact and lightweight, low power consumption, resistance