Digium TDM812B Analog / Digital Phone Line Converter

The TDM800P contains two module banks. Each bank supports up to four analog interfaces. The module banks may be filled either with one standard Digium® quad analog module (FXS - S400M, FXO - X400M), or up to two standard Digium® single analog modules (FXS- S110M, FXO - X100M) enabling the creation of any combination of ports.