A rule that mandates that between any two nodes on the network, there can only be a maximum of five segments,connected through four repeaters, or concentrators,and only three of the five segments may contain user connections.
Commonly referred to as a telco, CHAMP, or blue ribbon connector. Commonly found on telephone switches,66-blocks, 110-blocks, and 10Base-T Ethernet hubs and used as an alternate twisted-pair segment connection method. The 50-pin connector connects to 25-pair cables, which are frequently used in telephone wiring systems and typically meet Category 3. Some manufacturers also make Category 5e–rated cables and connectors.