COMMUNICATION NETWORK INSTALLATION FAULT DISCRIMINATION DEVICE

摘要

PURPOSE:To facilitate the maintenance of a communication network fault discrimination system by collating a main cause installation discrimination pattern with an external alarm signal generated at both installations connecting to a transmission line discriminated to be a main cause transmission line among external alarm signals so as to discriminate a main cause installation. CONSTITUTION:A main cause installation discrimination pattern storage device 15 stores plural main cause installation discrimination patterns to discriminate which of both ends of a transmission line is discriminated to be a main cause transmission line. A main cause installation discrimination device 16 collates a main cause installation discrimination pattern for both ends installation of a transmission line discriminated to be a main cause transmission line at a main cause transmission line discrimination device 14 among main cause installation discrimination patterns stored in the main cause installation discrimination pattern storage device 15 with an external alarm signal 3 generated in both installations of the transmission line to discriminate the main cause installation. Thus, the maintenance of the communication network fault discrimination system is facilitated and the system is applied not only to an analog communication network but also to a digital communication network or an analog digital mixture communication network widely and the fault discrimination is implemented by the installation level.