| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the influence of the reflection of a signal and to precisely transmit the signal at high speed in a digital interphone system making a call with a slave machine by moving one interphone terminal to a different place. SOLUTION: The system is provided with the slave machine 1 connected to a terminal adapter 2, modular plug sockets 3a, 3b, 3c,... connected to a terminal adapter, a digital interphone terminal 4 connected to one of the modular plug sockets, a wiring short module 6a connected to the modular plug socket to which the digital interphone terminal is not connected, and a modular cable 5 connecting the modular plug socket and the digital interphone terminal.
|
