[comp.dcom.telecom] 2nd Line Color Codes

levitt@zorro9.fidonet.org (Ken Levitt) (07/31/89)

I have two phone lines in my house.  Both lines appear on the same quad cable.
Line one is on the red and green wires and line two is on the black and yellow
wires.

Things work just fine when I plug in a two line phone.  However, in some
locations I use a wall plate with two modular outlets.  I run the red/green
wires to the top outlet and the black/yellow to the bottom outlet connecting
to the terminals marked red and green.

I know that the colors don't matter as long as I am consistant and my polatity
tester shows all is OK, but I would like to know what the standard is in
color coding.  Should the yellow wire go to the terminal marked red or
should the black wire go to the terminal marked red?

--
Ken Levitt - via FidoNet node 1:16/390
UUCP: ...harvard!talcott!zorro9!levitt
INTERNET: levitt%zorro9.uucp@talcott.harvard.edu

[Moderator's Note: Green and red/yellow and black/blue and white... who
can go further? Once I heard a phone man name all twenty five pairs in
a cable and their associated partner.....purple and gray/??? and ???.....
then we get into the slates (stripes)...can anyone reading this name all
twenty five pairs (fifty wires) and the 'proper' color combinations?  PT]

feldy@cs.ucla.edu (Bob Felderman) (08/01/89)

>[Moderator's Note: Green and red/yellow and black/blue and white... who
>can go further? Once I heard a phone man name all twenty five pairs in
>a cable and their associated partner.....purple and gray/??? and ???.....
>then we get into the slates (stripes)...can anyone reading this name all
>twenty five pairs (fifty wires) and the 'proper' color combinations?  PT]

It's really pretty simple:
There are 5 color groups
	white,red,black,yellow,violet
In each group there are 5 pairs
	blue, orange, green, brown, slate

For each pair, the wire that is mostly the color of the group goes first.
For example the 1st pair is White/Blue then Blue/White.
Here's the list:
white/blue	blue/white
white/orange	orange/white
white/green	green/white
white/brown	brown/white
white/slate	slate/white

red/blue	blue/red
red/orange	orange/red
red/green	green/red
red/brown	brown/red
red/slate	slate/red

black...

yellow...
violet...

That will give you 25 pairs (50 wires). To get more than that, for instance
in a 1200 pair cable. Each set of 25 (colored as above) is wrapped with
a colored ribbon. The 1st 25 pairs get a blue ribbon wrapped around them.
The 2nd get an orange, the 3rd get a green ... and so on. I've never
installed a cable with more than 100 pairs, so I don't know how the coding
goes after 125 pairs. I'd assume it's fairly straightforward.


Bob Felderman                   	         feldy@cs.ucla.edu
UCLA Computer Science   	...!{rutgers,ucbvax}!cs.ucla.edu!feldy

chuckh@uunet.uu.net (08/02/89)

>[Moderator's Note: Green and red/yellow and black/blue and white... who
>can go further? Once I heard a phone man name all twenty five pairs in
>a cable and their associated partner.....purple and gray/??? and ???.....
>then we get into the slates (stripes)...can anyone reading this name all
>twenty five pairs (fifty wires) and the 'proper' color combinations?  PT]

Here, is the order of the 25 pair color code.  This is from
memory and I don't use it often anymore, but I pretty sure its correct.

I don't know of any relationship between red/green/yellow/black
quad cable and this code.

w/bl	bl/w		w = white	bl = blue
w/o	o/w		r = red		o = orange
w/g	g/w		bk = black	g = green
w/br	br/w		y = yellow	br = brown
w/s	s/w		v = violet	s = slate

r/bl	bl/r
r/o	o/r
r/g	g/r
r/br	br/r
r/s	s/r

bk/bl	bl/bk
bk/o	o/bk
bk/g	g/bk
bk/br	br/bk
bk/s	s/bk

y/bl	bl/y
y/o	o/y
y/g	g/y
y/br	br/y
y/s	s/y

v/bl	bl/v
v/o	o/v
v/g	g/v
v/br	br/v
v/s	s/v
				Chuck Huffington
				uunet!apex!chuckh