Kingston Technology KNS2450/R Manuel D’Utilisation

Kingston Technology Company

KNS3250/R User’s Guide - Rev. A00

Appendix B - Cabling Guidelines

UTP 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.
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 W 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 congurations, 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

Table B-4 4-Pair T568A Wiring

Table B-5 4-Pair T568B Wiring

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8

Pair 3
Pair 3
Pair 2
Pair 1
Pair 1
Pair 2
Pair 4
Pair 4

Blue

Orange

Black

Red

Green

Yellow
Brown

White

White/Green
Green/White
White/Orange
Blue/White
White/Blue
Orange/White
White/Brown
Brown/White

T568A

Pairs

Strand

Solid

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8

Pair 2
Pair 2
Pair 3
Pair 1
Pair 1
Pair 3
Pair 4
Pair 4

Black

Yellow