The DM X100M/S100M module allows the DM400A card to termiante analog telephone lines (POTS). The module passes all the call features any standard analog telephone line will support. Worldwide certifications are pending.

Each DM X100M/S100M module allows the mother board to terminate one analog telephones.

The X100M/S100M module provides the superior audio qualities.

The X100M/S100M module is completely compatiable with Digium S110M/X100M and can be used with the Digium compatiable telephony card.

An FXS device initiates and sends ringing voltage. An FXO device receives the voltage sent by the FXS device.

The phone receiving the call is the last FXO device in the chain, and when it receives voltage from an FXS device, the phone will ring.

Connect the outside line to an FXO port on your Asterisk server to receive voltage from the outside lines.

Connect the phones to FXS ports on your Asterisk server. When the FXO module in your Asterisk Server receives the voltage, it will then generate voltage using the FXS module and send it to your analog phone