[Asterisk-Users] Adtran TA750 Noise

[Michael Welter]

I'm having the _exact_ same problem.  Is your POTS line, by chance, a 
fiber circuit from the CO and then analog to your location?

Mike

Greg Scasny wrote:
> 
> 
> All,
> 
> I need help.
> 
> I have an (actually 2) Adtran TA750’s with 8 FXO ports. I get a terrible 
> buzz on every FXO port. If I unplug the Adtran and put an analog phone 
> on each incoming line, I have no buzz.
> 
> I also have 2 Carrier Access Access Bank I’s with 12 FXO ports. When I 
> plug the same analog lines into either one of those, no noise or buzz 
> whatsoever.
> 
>  
> 
> I went so far as to move the TA750 to within 5 feet of the demark and 
> ran a short CAT5 cable from the demark to the TA705 and still lots of buzz.
> 
>  
> 
> I have duplicates of every part for the TA750’s and swapped every 
> component and cannot get rid of the hum on either unit. I have the power 
> supply of the Adtran grounded. I am out of ideas L .
> 
> Any assistance would be greatly appreciated.
> 
>  
> 
>  
> 
> Thanks in advance……………..>>Greg
> 
>  
> 
> Gregory P. Scasny
> 
> Golden Technologies Inc.
> 
> http://www.golden-tech.com <http://www.golden-tech.com/>
> 
> 219-462-7200
> 
>  
> 

-- 
Michael Welter
Introspect Telephony Corp.
Denver, Colorado
+1 303 674 2575
mike at introspect.com
www.introspect.com