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.
(Note, this technique will notwork with gigabit ethernet as that uses all four twisted pairs, but there are power over ethernet options for gigabit networks too.) Pins 4/5 (blue pair â blue and blue/white) and 7/8 (brown pair â brown and brown/white) are the wires not used in 10/100 Mbps networks which can therefore be used to carry power. Pictured below is the old school DIY method of getting power through ethernet cables.