| 摘要 |
<P>PROBLEM TO BE SOLVED: To make possible continuous communication by connecting directional couplers of the final stage of at least two out of a plurality of lineages to multiplex the route of communication and altering the route of communication by reassigning an ID number at the time of disconnecting the connection of the directional couplers or of restoring the connection. <P>SOLUTION: ID numbers and lineages of a plurality of directional couplers 4a, 4b, 4c, 4d, 4e and 4f connected to a control device 5 by a plurality of trunks L1 and L5 differing with the lineage are caused to be recognized, and the control device is provided with a lineage/ID number managing unit 50 that instructs frame transmission to data communication units 51 and 55, each of a different lineage. By providing each of the plurality of directional couplers with an ID number managing unit 40 that registers an ID number allocated to each directional coupler as its own on the basis of an ID number notification frame signal received by a prior stage data communication unit 41 and a posterior stage data communication unit 42 each connected to a trunk and sets the route of communication, the route of communication is altered according to the state of connection between directional couplers and trunks. <P>COPYRIGHT: (C)2012,JPO&INPIT |
