[asterisk-users] Major Digium Card Problems

[Steve Totaro]

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