| 摘要 |
PURPOSE:To enable the bi-directional transmission without reducing the transmission efficiency by mounting a member having a transmission line capable of branching and coupling an optical signal and inserting the light communication sent from one connection part to the connection part with is not connected with a light cable into other connection part. CONSTITUTION:An optical signal from an equipment with a light emitting part and a light receiving part is inserted through a connection part 2 and an optical signal from the other equipment is inserted through a connection part 7, then they are coupled by a 1st connection part 8a, further they are sent through a connection part 4 to an optical cable for the transmission to the other devices. One of the optical signals inserted through a connection part 5 is sent through a connection part 1 to the light reception part of the equipment and the other is sent through a connection part 6 to the other equipment, then to a optical cable. When it is unnecessary to send it to the other equipment, the optical signal is inserted through not the connection part 5 but through the connection part 3, the inserted optical signal reaches the connection part 1. Thus, the signal transmission between devices can be performed bidirectionally without washing the optical signals. |
