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Joined: May 2004
Posts: 34
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Joined: May 2004
Posts: 34 |
Having trouble removing a ground hum noise on in-only DID lines. I have replaced DID card, 48v pwr supply, KSU pwr supply, KSU. I have also stripped it down to 1 station card and DID only.
The Phone Ranger
Salt Lake City, UT.
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Joined: Jun 2001
Posts: 10,631
RIP Admin-Founder
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RIP Admin-Founder
Joined: Jun 2001
Posts: 10,631 |
Just saw this post...sorry for the late reply.
did you try turning off the florcent lights in the building? if they have em. They seem to cause a lot of hum at times.
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Joined: Feb 2004
Posts: 323
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Member
Joined: Feb 2004
Posts: 323 |
Also, you might try bonding system ground to the telco ground if they are different. This sometimes clears grounded hum isssues.
Kerry
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Joined: May 2004
Posts: 11
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Joined: May 2004
Posts: 11 |
we always put on a filter on the copper DID lines. It is made by SNC MFG. CO. Inc. if you need any info email me [email protected] put in subject line tech support
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