Why, Oh why, are there different specs? Are they used for different types of wiring? > Hrm, you list 5 pairs. Cat 5 only has 4 pairs... :) > > Color Codes for T568B > Pin color pair name > --- ----- ---- --------- > 1 wh/or 2 TxData + > 2 or 2 TxData - > 3 wh/grn 3 RecvData+ > 4 blu 1 > 5 wh/blu 1 > 6 grn 3 RecvData- > 7 wh/brn 4 > 8 brn 4 > Or the T568A - we use this for some reason... 1 - wh/grn 2 - grn 3 - wh/or 4 - blu 5 - wh/blu 6 - or 7 - wh/brn 8 - brn The Easy Aproach... > > orange > > orange-white > > blue > > blue-white > > brown > > brown-white > > green > > green-white > > black > > black-white > With extra wires leftover? WOW, I think I'll try it this way next time. Run an anolog phone line too... ;-) It really doesn't matter as far as the data is conserned how you wire it. As long as it's the same on both ends (for the non-crossover cable) it will work fine. The wires are special or anything. Of course if you ever have someone who know's what there doing check it out you may get a severe talkin to... sim