| 摘要 |
The apparatus and method displays an abnormality existence or nonexistence simultaneously to switch automatically a stand-by circuit, by using a multi core cable, when a line is disconnected. The apparatus includes a microcomputer, a transmitting side line selector, a warning display unit, a transmission signal data processor, a multichannel de-multiplexer, a transmitting side cable connector, a transmitting line for transmitting an output signal of the transmitting side cable connector, a receiving side microcomputer, a receiving side cable connector, a multi-channel multiplexer, a line selector, and a signal reception processor.
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