RELAY COMMUNICATION EQUIPMENT

PURPOSE: To prevent repetition of relay of a same route due to mis-setting or the like by analyzing relay command information so as to discriminate the propriety of continued relaying. CONSTITUTION: A relay command information analysis section 13 extracts relay command information from reception information of a reception section 14 and analyzes the information to discriminate the propriety of relay. When discriminated to be NO, a line interrupt section 15 is energized and a transmission section 16 provides an output of an interruption command and informs an error to an opposite station via an error notice section 17 and displays the error onto an error display section 18. When the line is interrupted, production of an infinite loop is prevented. When the possibility of relay is discriminated, a relay command information generating section 19 generates new relay command information. It is sent to a station of a next stage via the transmission section 16. Furthermore, when an error takes place on the way of relaying, a communication error detection section 20 detects it, a loss time adder section 21 adds a loss time to a relay permissible time in the relay command information and the generating section 19 newly generates the relay command information.