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Minor point -- red-green-yellow-black telephone cable is quad, not 2 pair.
2 pair "quad" has been available for years. The R/G and B/Y is twisted to CAT3 standards.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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*SIGH* I gotta get out of this business -- I'm tired of trying to keep up with the changes.
Telecommunications Installation and Repair: April 1, 1966 -- November 30, 2011
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Originally posted by Mike Andruschak: Originally posted by mdaniel:
[b] ...So we show up to install a month or so later and find the electrican run 2pr red,green,black,yellow cable for their phones!!!
... Mike Gotta disagree with your post grn/rd/blk/ylw Quad is no problem for analog voice . I don't have enough fingers & toes to count how many crosstalk problems I have traced down to the fact that 2 analog lines where being ran over grn/rd and the other over blk/ylw . No twist = parallel pair conductivity . 
Let It Be , I live in a Yellow Submarine . SCCE
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2 months ago ran into same prewired , new construction job,wired by electrician. Nice closet layout,3/4" board on wall 24 cat5e voice out of one conduit, 24 data ot of other, run 3" to top of 66 blocks punched down and marked, I was impressed untill i looked at 66 ,it was not a split 50, no slack, had to pull right side wires off and install half of a system, owner had electrician in he spliced all loose cables.
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Joined: Mar 2006
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My favorite is when electricians run Cat5 for doorbells! Even better is when they try to terminate the Cat5 at a RJ11 phone jack and the colors don't match up...
"Let's see, orange kinda looks like red so I'll use that for the red. Green is there, no problem. The brown looks close to black so I'll match them up. Don't really have a yellow so I'll use blue for that. What do they use all these extra white wires for?"
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Joined: Sep 2005
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Good Post Pants ! 
Let It Be , I live in a Yellow Submarine . SCCE
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Pants you right I ran into that a lot when twisted pair first come out. The electricians were used to quad and kept useing that color code.
Sparkies Color Code
2 pair
red=orange
green=wht/blue
yellow=wht/orange
black=blue
4 pair
red=orange
green=green
yellow=any white wire choice of 4
black=brown
and don't forget to wirenut all unused wires together
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Joined: Jan 2005
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
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Pants:
All them whites are grounds. Just twist 'em together and throw them back in the box.
Ed Vaughn, MBSWWYPBX
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Good suggestion Ed , about " Just twist 'em together and throw them back in the box . My suggestion on the MDF/IDF termination side is to take all them Whites and secure them to your ground bar . Hell what else are the good for ! :toast:
Let It Be , I live in a Yellow Submarine . SCCE
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