[Asterisk-Users] Is it mandatory to give power supplytoTDM400Pcard

[Kevin P. Fleming]

Jonathan k. Creasy wrote:

> The only thing I can think of is that since the card supports 3.3v or 5v
> PCI slots that maybe on a 3.3v slot it requires the other connection all
> the time because it really does need the 5v and is just not picky about
> where it comes from. 

No, that is not correct. The +5V power pin on the Molex connector is not 
even wired to anything on the board, it is completely ignored.

As the others have already said, the FXO modules do not use the +12V 
power feed at all. The TDM400P with only FXO modules installed works 
just fine without the auxiliary power connector connected to a power supply.