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Quad Channel FXS Analog Module
The S400M FXS module allows 800 Series or 2400 Series analog cards to terminate four (4) analog stations per module.
Because of the modular design, you can activate additional ports at any time with more S400M or X400M daughter cards.
Note: To use the S400M module, you must provide 12V DC power to the TDM800P card or TDM2400P card, either from the computer's power supply or from the Analog FXS Module Power Supply.