| 摘要 |
Communicating apparatus to be provided between an intermediate line and transmission lines to establish data communications, the intermediate line and the transmission lines having in combination data pass therethrough, the transmission lines including first line and second line, comprises: first receiving means 111 for receiving the data via the first line, second receiving means 121 for receiving the data via the second line, interface means 101 for transmitting via the intermediate line the data received by the first receiving means via the first line and the data received by the second receiving means via the second line, and for receiving the data transmitted by an other communicating apparatus via the intermediate lines, first transmitting means 112 for transmitting via the second line the data transmitted via a first receiving means of the other communicating apparatus, first detecting means 113 for detecting the data transmitted via the second line, first controlling means 114 for controlling the first transmitting means in such a manner that the first transmitting means is selectively switched between under the operative state and under the inoperative state based on the data detected by the first detecting means; second transmitting means 122 for transmitting via the first line the data transmitted via a second receiving means of the other communicating apparatus, second detecting means 123 for detecting the data transmitted via the second line, and second controlling means 124 for controlling the second transmitting means in such a manner that the second transmitting means is selectively switching between an operative state and an inoperative state of the second transmitting means based on the data detected by the second detecting means. <IMAGE> |
