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Standard wiring conventions



Jan 1, 1970
Hey all.

I'll be replacing all the existing cabling on my ademco redo.

I've purchased 2000' of 22/4, and am making up the harness(es) now.

A question on the RGYB: Is there a convention for which colors are
used? For example - door contacts which use only 2 of the 4 conductors
- should I use red/green, yellow/black or some other combo? I realize
from a functionality standpoint its a meaningless question, but if
there is some sort of usual standard I'd like to follow it, in the same
way I use blue/blue white for voice on cat 3.

Also.... in my house the termination resistors are at the end of the
run, but here at the shop they are in the can. Seems to me they would
better serve their purpose at the end of the run, but what the hell do
I know, I don't do this for a living. So, should they go at the end,
the beginning, or it makes a difference not? If no difference, I'll put
them at the end of the run, as I think they look like hell when in the

Also - any pics of a goodly wired residential panel? I've about 22
zones in this job, and I'd like some close ups of any work someone is
proud of.... I'm a former electrician, and without any other input from
ya'll my install will likely end up done in breaker panel fashion.

Thank ya kindly.


Jan 1, 1970
Thanks Graham

This install is in a 1 story bldg, with either attic/ceiling tile/open
space above the main floor. When I installed the voice/data ckts, I
found it was easier to run all the ckts on the floor, from the panel to
the outlets. Then I zip tie all of it up, and simply lift everything
(the harness) up into the attic and fish the individual ends down. Took
me about 4 hours to pull 40 voice/data ckts this way.

As it worked so well with that, I'm doing the same thing with the alarm