| 摘要 |
PURPOSE:To detect simply an MFO fault cause by registering ''1'' to an operating talking truck counter or a register trunk counter at generation of a fault and judging that the fault is generated in the trunk in case of overflow. CONSTITUTION:When no backward signal returns after a forward signal is transmitted, a program detecting an MFC fault is started to analyze a case of fault and its result is typed out when necessary. Then a counter is given at each talking trunk/register trunk. If a fault takes place, 1 is registered to the operating talking trunk and register trunk respectively. When the value of the talking trunk counter is larger than a prescribed value and overflows, generation of the fault is generated by the ame trunk and it is discriminated due to a defective line. When the register trunk counter overflows, it is judged as a defective register trunk. |
