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Dave, Hal's just trying to determine if it's the wiring or the KSU. You don't want any data leads from the KSU to the jack, period. At that point if you still have the noise eliminate the KSU by going CO feed to the jack. This will help you isolate the cause of your trouble. Length of wire increases noise, so plugging right into the KSU really isn't proving the trouble, also you are eliminating some wiring when doing that, no matter how little. DON'T redo the wires, eliminate them as a source of trouble.
Retired phone dude
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Hey, I got some excellent advice and new knowledge from you guys. I will put it to good use tomorrow and let you know how it turned out. Thanks again. Dave
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If I am understanding Dave correctly, it sounds like he has isolated the problem to the cat5 wiring. I am willing to bet that the cat5 is run parallel to the AC somewhere, or crosses a ballast, and is picking up AC hum. Electrical contractor probably ran the phone wiring :nono: . Dave, did you follow justbill's suggestion to kill the AC and turn the breakers back on 1 at a time? What happened?
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I think we may be to the point where we need to consider the wire itself. What's the story with it? Who did the wiring, did you inspect or at least see the wiring before the walls were closed, were these two runs that have a problem pulled together and are they next to each other for any distance, are they next to any Romex, is it installed in holes through the studs, metal studs or wood?
Lots of questions I know but there has to be a common denominator here someplace.
Another thought comes to mind and that is can the buzz be heard on the other end by a caller calling you? If so I would like to hear what you are talking about. A 60Hz hum from EMI is distinctly different from the "digital" noise you would get from the data pair.
-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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Originally posted by Dave80:
One other thing, [b]before I installed the ACS I originally install a multi-phone stand alone system and that did not have this buzz problem . I have put back this phone and I do not her the buzz. If it is there it is very muted. [/b] This should tell you something. That is why Hal is saying remove the data pair completely and test with a SLT or butt set. It still could be induction, or still could be the cable, you just have to start eliminating possibilities.
Retired phone dude
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