Para (41) : Subordinate or delegated legislation takes different forms. Subordinate legislation is. divided into two main classes, namely, (i) statutory rules, and (ii) bye-laws or regulations made (a). by authorities concerned with local government, and (b) by persons, societies, or corporations.
Ethernet Cat 5 cables have eight wires (four pairs), but under 10BaseT and 100BaseT standards (10 Mbps and 100 Mbps, respectively) only four (two pairs) of these wires are actually used. One pair is used for transmitting data and the other pair is used for receiving data.
More common was to run phone wires to pin 4 and 5, so that you could plug either an analog phone or an Ethernet cable into the wall, and either would work. With 1000 Mbits/sec (what's most common today), the protocol uses all 8 wires for a single connection, and there's no more of these fun and games.