[asterisk-users] Dahdi install gone wrong

[A J Stiles]

On Wednesday 25 Aug 2010, Doug Dawson wrote:
> Todd
> To interface directly with the telco pots lines You should be using FXS
> modules with FXS signaling.

No.  FXO is what you need to connect to a phone line.  FXS is to connect to 
and ring an analogue telephone.  (S = Signalling; i.e. it can generate the 
line current, dialling tone and ringing voltage).

A card with FXS modules on it requires an extra connection to the host 
computer's power supply, as it can draw more power than the edge connector 
contacts are good for.

-- 
AJS