Wall Jack to Wall Jack wiring

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 Question by Chris Keogh posted 04 May 2001
 Wall Jack to Wall Jack wiring
I'm planning to connect two computers to an ethernet hub in order to share a cable modem. I was planning to run Cat 5 bulk cable through the walls from an upstairs bedroom to a downstairs location. To make things neater, I wanted to use T568A compliant wall jacks in each room and then use patch cords to connect the devices to the wall jacks. I don’t think I’ll ever connect more than two computers so I’m hoping to avoid using a patch panel. Effectively, I’m trying to create one long straight through connection from the downstairs computer to the hub upstairs.

Can I wire wall jack to wall jack? What pin assignments are required?


Chris Keogh
 Answer by Dmitri Abaimov posted 04 May 2001
Dear Chris,

If you decided not to use a patch panel, the solution is very simple: when you buy a jack, it comes with color coded labels sticked to the jack or supplied in the same plastic bag. This color code should correspond to that of the 4-pair cable color coding. The only consideration would be to buy a jack that does not require special tooling to terminate: you won't buy a tool for only two terminations. I would suggest that you look for Panduit Mini-Jack (manufacturers code CJ588IW) which does not require punch-down tool.
For more info on color coding, please browse to

Dmitri Abaimov, RCDD

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