Kingston Technology KND2410TX, KND810TX manual UTP Cable Rating Codes, T568A Pairs Strand Solid

12 Appendix B Cabling Guidelines

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.

With the advent of 100Mb/s networking products, it is best to use higher quality CAT 5 cables like Belden or Helix as well as CAT 5-compliant patch panels, patch cables, and connectors while following the EIA/TIA wiring standards. 100 Ω UTP CAT 5 type cables use 4-pair UTP wiring.

Refer to the illustrations below for 4-pair wiring using either T568A (Fig. B-1) or T568B (Fig. B-2) wiring standards. Both T568A and T568B wiring is compatible with 10BASE-T and 100BASE-TX and require no special configurations, but for premise wiring, stick to one wiring standard. Mixing T568A and T568B wiring schemes may cause or lead to potential problems.

Fig. B-1 4-Pair T568A Wiring Fig. B-2 4-Pair T568B Wiring

T568A		Pairs	Strand		Solid
Pin 1		Pair 3	Blue	White/Green
Pin 2	Pair 3		Orange	Green/White
Pin 3	Pair 2		Black		White/Orange
Pin 4		Pair 1	Red	Blue/White
Pin 5		Pair 1	Green	White/Blue
Pin 6		Pair 2	Yellow	Orange/White
Pin 7		Pair 4	Brown	White/Brown
Pin 8		Pair 4	White		Brown/White

Table. B-4 4-Pair T568A Wiring

T568B		Pairs		Strand		Solid
Pin 1	Pair 2			Black		White/Orange
Pin 2	Pair 2		Yellow			Orange/White
Pin 3	Pair 3			Blue	White/Green
Pin 4	Pair 1			Red		Blue/White
Pin 5	Pair 1		Green		White/Blue
Pin 6	Pair 3		Orange		Green/White
Pin 7	Pair 4		Brown			White/Brown
Pin 8	Pair 4			White		Brown/White

Table B-5 4-Pair T568B Wiring

UTP Cable Rating Codes

UTP cables meet different UL-NEC requirements based on cable-jacket quality. Below is an explanation of the rating codes for each cable type.

Kingston Technology Company KND2410TX User’s Guide - Rev. A01