论文部分内容阅读
CZ-1长途自动接续机,是实现通信长途自动化的主要设备。几年来维修人员在巡测时,都采用人工拨号和监听,不但效率低而且还影响通话效率。随着长途自动话路的大量增加,人工测试,远远不能适应形势发展的需要。北京铁路局石家庄电务段经过一年的反复试验和改进,终于试制成功CZ-1自动巡测仪,这种巡测仪可以自动拨号、自动进位、自动应答、自动拆线,同时能自动显示各回线有无拨号音、对号、错号、
CZ-1 long-distance automatic connection machine, is the main equipment to achieve long-distance communication automation. Maintenance personnel in the past few years, tour inspection, are using artificial dialing and monitoring, not only inefficient but also affect the call efficiency. With the increase of long-distance automatic road, manual testing can not meet the needs of the development of the situation. Beijing Railway Bureau Shijiazhuang Electrical Services Section after a year of repeated testing and improvement, and finally successfully trial CZ-1 automatic detector, this device can automatically track dial, automatic carry, automatic answer, automatic removal, and can automatically display Whether the dial tone, return, wrong number,