[Asterisk-Users] Asterisk Maintenance

[Chris Glover]

On Wed, 8 Dec 2004, Michael Welter wrote:

> I went on a service call yesterday to find an asterisk system with a T100P 
> card on a Qwest PRI and a TDM40B card connected to fax machines. The TDM40B 
> LEDs were not lit, and the system did not respond to keyboard input. 
> However, calls were being processed for the PRI and 7960 phones.
>
> I replaced the TDM40B card with a new one, and the system now seems to be ok. 
> But I'm wondering, why would the LEDs go off?  Why would keyboard input fail?
>

Hi,

Cant help with the TDM card, but I have seen PCs get affected by mains 
bumps. I used to have a PC where the keyboard controller would crash 
but I was still able to telnet into the PC and reset it.

Check the mains supply, there might be something with a big inductive 
load, that causes some ripples that are ending up on the DC outputs of 
your PCs PSU.

HTH

Chris

-- 
Chris
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