[asterisk-users] Major Digium Card Problems

[Michael J. Liberatore]

Does this mean that the server itself may not be grounded?  (as in the
outlet isnt properly grounded) That would obviously be the easiest thing
to fix.  Assuming it is grounded, I guess the first place I should check
is the outside telco box?  Make sure its grounded?  Its strange this
just started out of no where though, either it was always grounded or it
always wasn't.  Thanks for your help.

Mike


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steve
Totaro
Sent: Thursday, August 09, 2007 12:20 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Major Digium Card Problems

Jay R. Ashworth wrote:
> On Wed, Aug 08, 2007 at 11:44:51PM -0400, Michael J. Liberatore wrote:
>   
>>    First problem, the card with 4 FXO ports is fine until there is a
>>    storm in the area, then all 4 lines are massively static filled
>>    making phone calls barely understandable until the system is
>>    rebooted or the zaptel modules are unloaded and reloaded. There is
>>    no problem with other phones or the previous phone system on these
>>    landlines, so i dont think there is a problem with the lines.
>>     
>
> First, find the knob in your mailer that says "send messages as HTML"
> and turn it off, please?  HTML is bad for mailing lists.
>
> Secondly, remember: this is a *phone* system now; you're hooking it up

> to several kilofeet of antenna.  If you don't have telco-quality 
> lightning protection and grounding on the box, you can expect this 
> sort of thing.
>
> You can't find practices handbooks anymore (damnitall), but if you've 
> ever looked at a professionally installed key system backboard, and 
> seen those Porta-Systems gas-tubes, and the size of the grounding 
> wire, then you may get an inkling of a) why you're having problems, 
> and b) why "traditional" PBX's cost so much to buy and install.
>
> It's not *all* extra markup, folks.
>
> Cheers,
> -- jr 'hobby horse' a
>   
I was not aware that ground wire was very expensive or difficult to
ground correctly.  I do not see how that adds very much to the dealer's
cost.

Thanks,
Steve

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