asterisk users - Feb 2006 - How to determine the power draw on TDM2400P?

For example, how much power would a server with 3 of the TDM2400P fully 
loaded cards draw?

We're trying to figure out what APC power we should have to achieve 
approx 30 minutes back-up time.

Would appreciate any learnings or methods on calculating the power draw 
and determining the appropriate back-up device.

Thank you.

Melisa.

Melisa Teoh wrote:
> For example, how much power would a server with 3 of the TDM2400P fully
> loaded cards draw?
With what type of modules? The power consumption figures are on the
TDM2400P data sheet and on the Digium website, IIRC.

The only significant power draw is the FXS modules, and then only when
actively ringing. The remainder of the board is powered via the normal
PCI bus power connections.
> We're trying to figure out what APC power we should have to achieve
> approx 30 minutes back-up time.
Well, the boards cannot draw more power than your server can supply, so
if your server has a 600W supply (for example), use that for your
calculations.