What is the maximum length of Ethernet cable runs?
This is a little understood characteristic. Ethernet cables are evaluated either as “channel” or “link” entities. All XBaseT networks assume (by IEEE specification) 100m as the maximum physical length of a full `channel’. This channel is expected to be configured with 90m of the horizontal premise (backbone “home run”) cabling and 10m distributed in two 5m lengths at each end of the of the “home run” to connect to the client and switch/hub interconnection. When testing a XBaseT connection from a Patch Bay to a client end, a Link Test is performed using test connections which are calibrated to conform parametrically as the 5m “patch” ends of a 100m channel. When testing a XBaseT Channel connection, test equipment assumes the full 100m is to be tested to conform parametrically with the appropriate IEEE specification.
