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.
just for amusement - the 10 Mbits/sec and 100 Mbits/sec specs for Ethernet only use 4 of the 8 cables in the connector (actually it uses pins 1, 2, 3 and 6), so it was possible (and sometimes people did this) to run two Ethernet connections over the same cable, by using a nonstandard Y-shaped connector.