[Asterisk-Users] Is it mandatory to give power supply toTDM400Pcard

[Jonathan k. Creasy]

That was my thought too. Even if it *does* work without it, there may be
a reason internally you can't see why it is required. (Ex. Putting extra
stress on a component causing it to fail in 6 months)

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Tom Rymes
Sent: Wednesday, August 10, 2005 3:49 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] Is it mandatory to give power supply
toTDM400Pcard

Is there any reason why anyone wouldn't just plug it in anyway? Why mess
around trying to figure out when it does work and when it doesn't, we
know it definitely works when you plug it in, and I can't think of any
good reason why you wouldn't.

Even if you don't have a free connector, get a Y-cable. (For example, my
card is installed in a SFF Compaq Deskpro, which didn't have any free
connectors...)

Tom

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Jonathan k. Creasy
> Sent: Wednesday, August 10, 2005 3:31 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: RE: [Asterisk-Users] Is it mandatory to give power 
> supply to TDM400Pcard
> 
> 
> Is it not for a card with 4 FXO? I spent several hours the 
> other day trying to figure out what I had done wrong and I 
> ahd forgotten to connect the power cable. 
> 
> I setup several of these before and couldn't figure out why 
> this one didn't work. It appears that's all it waqs. 
> 
> Without the power connecter the card will probe, and even 
> appear to be working but when the lines ring (coming into the 
> FXO port) it will not indicate the ring status to asterisk. 
> 
> -Jonathan
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Time Bandit
> Sent: Wednesday, August 10, 2005 3:04 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Is it mandatory to give power 
> supply to TDM400Pcard
> 
> > I can modprobe TDM400P card without feeding power
> > supply , so what is the purpose of providing power
> > supply in that card.
> > Can any body tell me
> It is needed if you have FXS ports on it, because the card 
> will need to provide ringing voltage to the phone.
> 
> hth
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