| 摘要 |
PURPOSE:To arrange optical fibers easily by providing an optical distributor in a joint box to reduce the number of optical fibers to the joint box and the number of their connections. CONSTITUTION:Optical signals emitted from light emitting elements 3 are sent to an optical multiplexer 5 through pierced holes 2 of a disc 1 and the first optical fibers 4 corresponding to elements 3 and are multiplexed by the multiplexer 5 to become a multiplexed optical signal. This signal is transmitted to an optical distributor 7 through the second single optical fiber 8 as it is. This signal is distributed optically by the distributor 7, and a part of the signal is transmitted to an optical demultiplexer 15 through the first branch optical fiber 9a. It is branched to three by the demultiplexer 15, and these three signals are converted to electric signals by phototransistors 14 and are transmitted from a joint box 6 to an automatic adjustment suspension device 10 by electric wires 13 as electric signals. The other part of the multiplexed optical signal is transmitted directly from the joint box 6 to a 4-wheel steering device 11 and an automatic damping device 12 by the second and the third branch optical fibers 9b and 9c as the optical signal.
|
