| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device capable of unifying a transmission/reception part for performing the transmission of a specific signal and a voice signal to the cable and simplifying the specifying work.SOLUTION: A cable specifying method for specifying one cable from a cable bundle formed with at least two or more closed loops, both ends of which are connected to each other, includes: specific signal generation means; voice signal conversion means; voice output means; transmission/reception means for performing synthesis or distribution of the specified signal and the voice signal and the transmission of the two signals to one cable performed at an arbitrary position of the cable bundle in a non-connection manner via the same circuit; and cable specifying means for defining a cable where the specific signal shows the maximum value as a cable to which the specific signal is transmitted. A pair of transmission/reception means is arranged at the transmission position and the reception position of the specific signal.SELECTED DRAWING: Figure 1 |
