| 摘要 |
<p>The present invention concerns an optical node in an optical bus network. The node comprises transmitters (Tx:1-3) and receivers (Rx:1-3) adapted to particular wavelength channels and arranged to communicate, via the optical bus network, with receivers and transmitters for corresponding wavelength channels in other nodes. The node according to the invention is characterized in that it comprises optical safety switching devices (S1-S5) in connection with the transmitters and receivers of the node such that the transmitters and receivers can if necessary be switched from a first optical fibre (1, 2) to a second optical fibre (1, 2).</p> |
