[asterisk-users] Heavy duty environment - Is TDM2400P suits?

[Drew Gibson]

Steve Totaro wrote:
> Andrew Joakimsen wrote:
>   
>> On 8/21/07, Chris Mason (Lists) <lists at masonc.com> wrote:
>>   
>>     
>>> Steve Totaro wrote:
>>>     
>>>       
>>>> You should have no problems.  Make sure you put surge protection and
>>>> ground your POTS lines.  It is a small investment.  I have had SEVERAL
>>>> FXO modules die or behave strangely after thunderstorms.  I cannot prove
>>>> it was a surge, but logic would indicate that was the issue.
>>>>
>>>>       
>>>>         
>>> Steve,
>>> How are you providing surge protection? I have lost a couple of cards to
>>> storms also.
>>>
>>>
>>>
>>>     
>>>       
>
> I did not ground them properly (they declined that option in the 
> original sales process) and they were from installations over one or two 
> years ago. 
>
> Since it was not really Digium's fault, I did not even bother with the 
> RMA process.  I may have tried if they were only a couple of months old.
>
> I just bought new modules and billed the customer parts and labor.  I 
> also sold them and installed proper grounding and surge supression.
>
> Thanks,
> Steve Totaro
>
>
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Steve,

what is the proper grounding procedure and what does good grounding achieve?

In this instance we are in an office tower and have 13 POTS lines. There 
is a good ground hanging off the wall from the legacy system but what do 
I connect it to?
Is a surge/lightning protector product required or is there something 
more rudimentary can be done? The concern here is more with call quality 
than lightning/surge protection.

regards,

Drew

-- 
Drew Gibson

Systems Administrator
OANDA Corporation
www.oanda.com

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