PC Expert - computer services » rj45 http://pcexpert.ie For all your computer needs! Wed, 27 May 2009 11:55:57 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 RJ-45 plug connection sequence http://pcexpert.ie/rj45-plug-connection-sequence/ http://pcexpert.ie/rj45-plug-connection-sequence/#comments Wed, 11 Mar 2009 20:13:47 +0000 admin http://pcexpert.ie/?p=62 Eight-conductor data cable contains 4 pairs of wires. Each pair consists of a solid (or predominantly) colored wire and a white wire with a stripe of the same color. The pairs are twisted together.

RJ45 plug connection sequence

RJ45 plug connection sequence

There are two wiring standards for these cables, called “T-568A” and T-568B” They differ only in connection sequence, not in use of the various colors. The illustration shown is for T-568B. The pairs designated for 10BaseT Ethernet are Orange and Green. The other two pairs, Brown and Blue, can be used for a second Ethernet line or for phone connections.

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