| 摘要 |
A LAN comprises a plurality of nodes (6,7) connected by LAN cables (4,5) with conductors (9) dedicated to transmission of timing signals (2) alone or in addition to a power supply for equipment at the node. The conductors (9) may comprise a twisted pair and may be connected between all ports or may be connected via a wiring box (11) (Fig.2). The timing signals may be provided by a source (2,12,22) at a LAN connection device (1), in the wiring box (11), or at a node (17), (Fig.3). |
