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电话交换机,由于它的特定用途,有着很强的实时性和并发性,而计算机在处理这一类问题上却有其独特的功能.目前,随着计算机技术在通讯领域的不断渗透,微处理机和大规模集成电路技术在电话交换机中已经起到了举足轻重的作用,这就造成了目前市场上占绝对优势的新一代通讯产品— 程控电话交换机.怎样才能恰到好处地将多处理机技术运用到程控电话交换机中来呢?让我们先从控制对象——电话交换机入手来分析一下有哪些端口需要控制,哪些信息需要采集,即有多少 I/O端口需要控制.我们以240/120JKQ—A全电子空分程控用户电话交换机为例:
Because of its specific purpose, the telephone exchange has strong real-time and concurrency, and the computer has its own unique function in dealing with this kind of problem.At present, with the continuous infiltration of computer technology in the field of communication, the microprocessor Machine and large scale integrated circuit technology have played a decisive role in the telephone exchange, which has led to a new generation of communications products on the market today - the program-controlled telephone switchboard. How can we just apply multiprocessor technology to the program control Let’s start with the control object - the telephone switch to analyze what ports need to control, what information needs to be collected, that is, how many I / O ports need to be controlled.We have 240 / 120JKQ-A full electronic Air separation program-controlled telephone exchange for example: