| 摘要 |
<p>A multiplexer structure for use in a network node system, the multiplexer structure comprising an optical multiplexing means having a plurality of trunk lines, a plurality of subscriber lines, and a switching means disposed between the plurality of trunk lines and the plurality of subscriber lines, wherein the switching means is arranged, in use, to be capable of selectively connecting each of the subscriber lines to different ones of the trunk lines. <IMAGE></p> |
