cable repair(short)

8/12/2019 Cable Repair(Short)

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CREATING A 568A, 568B,OR CROSSOVER CABLE

Creator:Dennis Groseclose


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RJ-45 Color Codes

Brown Not used8White & Brown Not used7 Orange Receive -6

White & Blue Not used5Blue Not used4White & Orange Receive +3Green Transmit -2White & Green Transmit +1ColorUsePin #


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REPAIR TECHNIQUES

The Steps to Rebuilding a CAT 5 Cable

1. Inspect the cable and determine the problem

2. Cut off the damaged section

3. Cut away the sheathing

4. Separate the pairs by colors

5. Align the wires in the proper pattern

6. Hold the wires in place between thumb and forefinger7. Cut the wires evenly across

8. Push the wires into the RJ45

9. Inspect the clip to make sure the wires are fully inserted

10. Crimp and Test


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REQUIRED TOOLS

Crimp Tool

Punch-Down Tool


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INSPECT THE CABLE

Look at the cable fordefects. What you willusually see withcables undergoingmany insertions willbe a broken top clip.This will prevent thecable from remaining

secured in the jack.


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Cut Off the Unwanted Section


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Cut the Sheathing Back About One Inch

Very carefully cut the blue sheathing back about 0ne

inch. Be careful not to cut into the inside wires.The sheathing can usually be twisted off if the cut

does not separate the pieces. This is actuallypreferable to cutting too deeply and cutting thewires.


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Separate The Wires by Pairs

There are fourpairs in the cable.Separate each pairwithout separatingthe individualwires.


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THE 568-B PATTERN

Align the wiresinto the 568Bpattern.

Orange- WhiteOrange

Green- White

Blue

Blue-WhiteGreen

Brown-White

Brown

8-BR7-BRW

6-GR5-BLW

4-BL 3-GW

2-O1-OW


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Firmly Grip Wires

Hold the wires firmly between the

thumb and forefinger, maintainingthe proper pattern.


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Cut The Wires Evenly

Cut the wiresevenly across alleight wiressimultaneouslywhile maintaininga firm grip, do notrelease the wires.The cut shouldleave about 3/4 ofan inch of wireexposed.


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Insertion into the RJ45Maintain the firm grip on

the wires and slowly easethe array of wires into theRJ45 clip.The clip partshould be on top and the#1 wire should be on theleft.( Front reference )

Closely observe to makecertain all wires are beingpushed completely to thefront of the clip, no wires

are crossed, and thecorrect pattern isinstalled.

#1Wire

TOP of CLIP

FRONT


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Crimp the RJ45

Hold the cable andRJ45 while insertingthe clip into a

crimping tool. Use astrong and measuredsqueeze to makecertain the pins areall pushed down into

the wires. Failure topush the connectorsall the way into thewires will result in adefective cable.

cable repair(short)

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