JPS56107656A - Mutual monitor system - Google Patents

Abstract

PURPOSE:To make it possible to mutually monitor other station by each station, by installing a monitor equipment which is provided with both the monitor function and the function to be monitored, in each station where a remote monitor system is constituted. CONSTITUTION:In case when a monitor signal is transmitted to other station equipment from the own station equipment, a transmission signal (i) from the monitor transmitting circuit (y) is input to the branching circuit (w). The circuit (w) makes the signal (i) branch to a signal (f) and (g) and transmits them to both the neighboring stations. Subsequently, a receiving signal (e) is made to branch by the branching circuit (w), and is made to branch to a transmission signal (g) to other station, and a branch signal (m) to the own station. The signal (m) is input to the monitor receiving circuit (x). The circuit (x) decodes a monitor signal and monitors other station. The control circuit (z) is provided in order to exactly control the time division of both the transmission cycle and the receiving cycle of the monitor equipment of the own station, by inputting/outputting both the control signal group (n) to the circuit (y), and the control signal group (r) to the circuit (x).