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Standard Wiring Pinouts

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Standard Wiring Pinouts

From: http://www.alatec.com/info/other.html

| Standard wiring for an RJ11 or RJ12 connector, pairs are made from inside out. Pair 1 is the Blue pair, Pair 2 is the Orange pair, Pair 3 is the Green pair. | | 568A is used for a lot of Ethernet cables. It is one of the two most widely used standards. If you wire both ends of your cable using 568A, you’ll have a straight-through cable usable for most Ethernet applications. Wiring a cable with 568A on one end and 568B on the other will result in a crossover cable for connecting two hubs together, or two computers together. | | 568B is the most widely used standard for Ethernet cables. If you wire both ends of your cable using 568B, you’ll have a straight-through cable usable for most Ethernet applications. Wiring a cable with 568A on one end and 568B on the other will result in a crossover cable for connecting two hubs together, or two computers together. | | USOC RJ45 standard is not as widely used but is an acceptable standard for wiring Ethernet. It uses the two center pins for pair one, with subsequent pairs placed to the outside of each previous pair. Usually used for straight-through cables. | | Copyright © 2008 CP3, Inc. |
CAT5e Straight-Through Cable Creation Guide

Before you begin creating your CAT 5e straight-through (patch) cable, it’s important to point out that the method outlined here is only one method. It is by no means the only or best method. Also, make sure you have all the necessary tools and materials before you begin. You will need a length of cable, several RJ-45 connectors, and a crimp tool.

1. Most crimp tools have two blades: one designed to cut completely through a cable and the other designed to strip the cable jacket/insulation. Using the latter blade, strip the cable jacket/insulation back about an inch so all the wires inside are exposed....

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