Wiring directly from a cat5 568a wallplate to a switch

LoganTeamX

Junior Member
Jan 15, 2004
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As the title and summary denote... I've been charged with wiring a 16-node new office for my company. I've punched down all of the wall plates, and now I found out that I don't have a patch panel for the wiring closet... they want it wired directly to a 3COM 10/100 24-port switch. I figure it can be done, but how??? I went through 4 different colour configurations last night.

What is the order of the colours needed to go from the wallplate directly into a switch? I know the whole purpose of the patch panel is to simplify this and make things a little more manageable, I've wired them before. I just need to know if the patch panel can be bypassed and what the 8-wire order is within the RJ45 cable end.

Thanks!

Logan
 

LoganTeamX

Junior Member
Jan 15, 2004
6
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It sure would, but I need to install this back-end today.

I guess I'll have to see if there are any available in my town (hopefully).

I figured someone here would know.

Thanks anyways.
 

MDE

Lifer
Jul 17, 2003
13,199
1
81
It should just be straight through (same way you wired the cables going to the wall jacks).
 

LoganTeamX

Junior Member
Jan 15, 2004
6
0
0
You'd think so, but if I connect the other end and wire it

WhBl/Bl/WhOr/Or/WhGr/Gr/WhBr/Br - no link when I connect a straight-through to the wall-plate and the other end to a computer.
 

Mday

Lifer
Oct 14, 1999
18,647
1
81
well, first you need a cable tester for cat5 (et al) for this so make sure you even have continuity.

http://www.linksys.com/faqs/default.asp?fqid=20

You need to get those colors to the proper location from the switch to the plate to the computer.

well, the cable from computer to plate is going to be straight.

so you will wind up with the reversed situation at the plate. THIS IS NOT CROSSED AT THE PLATE. That is, at the plate, you will have the TX and RX switched with each other. Thus, you CANNOT use a crossover NOR a straight for plate.

what you need to do is... plug a regular straight cable into the side that the PC will connect. This will be a point of reference for color coding. AND make a straight crimped connector for the cable that goes to the switch. and the other end be just wires since they have to be punched\keyed\inserted into the keystone jack. then all you have to do is this: match colors.


[computer cable]--orange wire--[jack outside]<some crap you cant see>[jack inside]--orange wire--[switch cable]

typically the keystone jacks dont tell you jack about what pin from the connector goes to what part of the punch so, a multimeter with a continuity tester would be a great thing to have... i have one btw

--

too bad you didnt think ahead of time and made sure you had a panel.
 

jackschmittusa

Diamond Member
Apr 16, 2003
5,972
1
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Did you follow one of the wiring codes on the wall plates? If so use the same pattern on connectors on the other end of the cables and plug them into the switch.
 

techahbeng

Junior Member
Jul 5, 2004
3
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WhBl/Bl/WhOr/Or/WhGr/Gr/WhBr/Br

Colour code for straight cable is WhOr/Or/WhGr/Bl/WhBl/Gr/WhBr/Br on both end

Colour code for cross cable is WhGr/Gr/WhOr/Bl/WhBl/Or/WhBr/Br on one end and the above colour code on the other.

Cross is for cascading 2 switches and for connecting a router directly to a PC.

HTH