中继电路的数据TUN,是NEAX61程控数字交换机局数据中最庞杂、最难以管理的部分,尤其是汇接局的数千条甚至上万条电路的数据管理就显得更加复杂.原因之一就是现业局的数字中继电路经常进行调整和扩容,电路数据经常变化,与原工程图不相吻合.这就给维护工作带来了很大的不便,为此我们开发了利用现业局数据直接出工程图的SUV数字中继电路分配软件系统. Trunk circuit data TUN, is the most complex and most difficult to manage part of NEAX61 program-controlled digital exchange office data, especially the data management of thousands or even thousands of circuits in the tandem office becomes more complicated. That is, the digital trunk circuits of the SDB are constantly adjusted and expanded, the circuit data often change, which is inconsistent with the original drawings, which brings great inconvenience to the maintenance work. Therefore, we have developed a system that uses the existing Bureau data directly out of the SUV digital relay circuit distribution software system.