- Customise config of TDM Card
- Modular Design
- Single FXO Port
The S400M FXS module allows the TDM800P card or TDM2400P card to terminate four analog telephones per module. Because of the modular design, a user can activate additional ports at any time with more S400M daughter cards. The S400M module passes all the call features any standard analog telephone line will support.