The MX2820 SCU (is a plug-in unit for the MX2820 chassis that acts as an interface between the user and the modules in the MX2820 system. The MX2820 SCU also allows provisioning of IP, security, and craft port settings.)
Total Access 608 (T1 - T1 Network Interface, DSX-1 for Digital Voice, V.35, 10/100 BaseT and IP Router. Eight FXS Ports with G.168 Echo Cancellation and ADPCM G.726 Resources)