Kingston Technology KNE8WG, KNE8SE, KNE16WG Cable Wiring Standards, Fig. B-4 2-Pair UTP Wiring

18 Appendix B Cabling Guidelines

Cable Wiring Standards

There are two governmental agencies: the Electronic Industry Association (EIA) and the Telecommunications Industry Association (TIA), which set the standard for all cable wiring requirements for commercial buildings. For unshielded twisted-pair (UTP) cabling, Category (CAT) 3, 4 or 5 can be used.

With the advent of 100Mbit network products, it is best to use higher quality CAT 5 cables like Belden or Helix as well as CAT 5-compliant patch panels and connectors while following the EIA/TIA wiring standards. 100 Ohm UTP/STP CAT 3, 4 & 5 type cables use 4-pair UTP wiring. Standard 10BASE- T uses 2-pair UTP wiring.

Refer to the illustrations below for standard 2-pair 10BASE-T wiring (see Fig B-4), and 4-pair 100Mbit wiring using either T568A (Fig. B-5) or T568B (Fig. B-6) wiring standards. Both T568A and T568B wiring is compatible with 10BASE-T and require no special configurations, but mixing the T568A and T568B wiring schemes will not work.

Pair 2

Pair 1

1 2 3 4 5 6 7 8

10BASE-T

Fig. B-4 2-Pair UTP Wiring

Pair 2

Pair 3 Pair 1 Pair 4

1 2 3 4 5 6 7 8

Pair 3

Pair 2 Pair 1 Pair 4

1 2 3 4 5 6 7 8

T568A	T568B
Fig. B-5 4-Pair T568A Wiring	Fig. B-6 4-Pair T568B Wiring
Kingston Technology Company	EtheRx User’s Guide - Rev. B00