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本文介绍一种为工业通信系统设计的二次群数字同步复用设备,该设备对沿线上下频繁的用户最适宜。文中介绍了主要技术指标和组成方框图,并讨论了为保证干线通信可靠性所采取的技术措施。其中详细介绍时钟和帧定位信号传递的可靠性,同步系统可靠性以及数字信号连接等问题。
This paper presents a design for the industrial communication system of secondary group digital synchronous multiplexing equipment, the device is most suitable for users up and down along the line. The paper introduces the main technical indicators and the composition of the block diagram, and discusses the technical measures taken to ensure the reliability of trunk communications. Which details the clock and frame positioning signal transmission reliability, synchronization system reliability and digital signal connection and other issues.