| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmitter system capable of monitoring an output signal of one transmitter from plural input cards by using plural general use transmitter power source-attached current input cards, and continuing the monitoring from another input card even if one input card is failed. SOLUTION: This system is equipped with plural current input type input cards having respectively a power source to be supplied to the transmitter, for receiving a current signal from the transmitter, and a signal distributor formed by connecting a nonlinear element for bypassing a current when the input card is failed and power source supply to the transmitter becomes impossible, to the input part of each input card connected in series. The system is formed so as to enable to monitor the output signal of one transmitter from the plural input cards.
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