white blue goes to green, blue white goes to red.
white orange goes to black, orange white goes to yellow.
A pair of telephone wire has a tip and a ring, tip is always green or the binder color. When I say binder color, I mean that the majority of the color is the binder color (ie. if you're on the violet red pair -- the violet red is the tip, the red violet is the ring). Outdoor or underground rated telephone cable uses the same configuration; however, the tip is one solid color (the binder color) and the ring is the pair color code. So... you have to strip back far enough to find the occasional twist in the pair to figure out which tip goes to which ring.
Older station cable (also called quad, although it can go up to eight pins and the color code for that has white blue orange and... I can't remember the last color) was green red black yellow. Lots of companies still make station cable in quad, good stuff for punching down to a block on one end, and plugging into your switch on the other end.
Telephone cabling is all made of pairs, each pair is color code into 5 groups with 5 pairs in each group. The total (25 pair) is put together into a binder. Larger cables are made up of many binders with the same color codes, and each binder is identified with the same color code.
There are two sets of colors, primary and secondary. The first pair we get is white/blue. This should be a white wire with a blue tracer (stripe) on it and a solid blue wire with a white tracer. Some cables may not have the tracers as explained above, so you need to carefully cut back the cable far enough to maintain the 'twist' in the pair so you have the right combination. Assuming you have a 4 or 6 conductor jack with the older color codes on it and you are using twisted pair wire, here is how you hook it up in USOC fashion for up to three lines:
white with blue stripe (tip) goes to green
blue with white stripe (ring) goes to red
white with orange stripe (tip) goes to black
orange with white stripe (ring) goes to yellow
white with green stripe (tip) goes to blue
green with white stripe (ring) goes to white
Quad wire (four conductor, hence the name) and the larger 6 conductor station cable (with white and blue) and 8 conductor (with orange and brown) should really not be used as there is generally no twist to maintain signal on each pair.
Here is a link to a pretty good page showing the details:
I'm sure violet/red was just an example, but you probably won't find that comgination. The page is nice because it give you color code and pin out details for several services.
Hope that helps, Good Luck!
It is only my opinion, based on my experience and education...I am always willing to learn, educate me!
Daron J. Wilson, RCDD
daron.wilson@lhmorris.com
I don't know what I was thinking when I said violet red...
how about change that to violet orange.
Those 5 color groups are:
White
Red
Black
Yellow
Violet
and... the pair colors are
Blue
Orange
Green
Brown
Slate
That will get you 25 pairs. If you have a 100 pair cable... each 25 pairs is wrapped with a binder color code (it can either be string or a small plastic piece that looks like plastic floss) and those colors repeat themselves just like pairs, so 100 pair cables have a white blue binder, white orange binder, white green binder, and a white brown binder. One you get above 100 pairs (I don't think they use slate to define binders, at least I've never seen it) then you get into super binders. So within the white blue super binder, you'd see four regular binders.
It only gets bigger from there...
Again, violet red -- yeah... pulled too much fiber and 25 pair off some poles and then from a few manholes. Sleepy.
Thanks for the link DW. I have a new guy that I am trying to show the colors codes and that worked well. Now I will let him play with a 100 pair this afternoon in our shop. Practice cable lol
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