Digium AEX410P - Four FXS / FXO Ports Max - Optional Echo Cancellation
The AEX410P is a PCI card used with Asterisk IP PBX (and variants) to connect to traditional, analog telecommunication equipment. Adding FXS, FXO and Echo Cancellation modules to the base board creates a "bundle". The AEX410P is a base board that supports Digium's FXS (green), FXO (red) and Echo Cancellation modules.