| 摘要 |
<p>A communications network is disclosed comprising a dynamic-impedance monitor- dynamic analysis network node 9 having multiple data ports (11, 18, 27), through which data is transmitted through the network. The impedances of external wire pairs 10.1, 10.2, 10.3 are monitored and respective termination impedances dynamically varied to minimize detected distortion. Signal flatness and reflected signal decay at the end of a data packet are used by a microprocessor as indicative of impedance matching or mismatching. The network further comprises "best route logic" for routing data through the node (9) to other data ports. If the network includes sufficient redundant links these are connected by the "best route logic" to form a second network over which status data can be transmitted.</p> |
