[Asterisk-Users] Re: Digium Hardware Reliability

[Tigran Kocharyan]

Mike,
If you feel afraid of the next power outage, why not install a more 
powerfull UPS with a longer run time? Or, as it is in my case, a friend 
of mine substituted the factory default battery in the UPS with a car 
battery, that holds the Server for 4-5 hours. Add another battery and it 
will hold 8-9 hours.
Really funny but it works.

Regards,
Tigran

M.Hockings wrote:

> Andrew Kohlsmith wrote:
>
>> On Thursday 29 June 2006 21:38, M.Hockings wrote:
>>
>>> How reliable is Digium hardware in general.?  My new TDM400P just died.
>>
>>
>> I have a number of Digium T1 products (T100P, TE410P, TE405P and 
>> TE406P) as well as a few TDM400 based boards.  No failures in the 
>> last 2 years or so.
>>
>>> So, at over 2x the cost is Sangoma hardware more sturdy than the Digium
>>> stuff?
>>
>>
>> Not that I've seen.  I also have a number of Sangoma products.  Both 
>> work very well for me.  As an engineer, I can also see that the 
>> protection on the interfaces is comparable.
>>
>>> Mike (totally UNimpressed with Digium)
>>
>>
>> I don't think this is a Digium problem, at least not yet.  What did 
>> their customer service people say?  Can you ask for a failure 
>> report?  You note that power went out.  Generally when this occurs 
>> there is a very high chance of transient voltage spiking or line 
>> swells not only on the residential electrical power grid but also on 
>> the telephone network.  Do you have any telco line protection in 
>> place to protect the card from nasties coming in from the outside?  
>> Is the protection correctly installed?  How about electrical 
>> protection?  The MOVs in your power strip and UPS are only good for a 
>> few hits before they become ineffective (something they never tell you).
>>
>> Unless you know something more than you've presented here it is a 
>> little premature to start pointing fingers.
>>
>> -A.
>
>
> Point taken.  I was not so much point fingers but asking what my 
> expectation should be and maybe shedding some frustration.  I don't 
> really have a lot of experience with this kind of communications gear 
> and it could very well be that one should keep spare daughter boards 
> in stock.
>
> I was finally able to get the thing going again but I do not know what 
> I did to accomplish that.  I had tried the card in different PCI 
> slots, reseated the daughter cards, powered the machine with and 
> without the card, checked BIOS settings then after half a day of 
> fiddling it just started responding again.  Who knows what the problem 
> was?
>
> As far as heat and stuff go, the card is in the only card in a new 
> IBM/Lenovo box and has plenty of air on all sides.  The box itself is 
> powered by an AVR type UPS, which according to the graphs it shows is 
> keeping the power pretty stable even though dips.
>
> One weakness is the incoming PSTN line, what is the best way to 
> protect that beyond the device at the premises entry ?
>
> So now it appears to be working again, don't know what failed, don't 
> know what made it work. and afraid of the next power outage at this 
> rural SOHO.
>
> Mike
>
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