MX2820 DS3 High Density System, MX2820 19 inch Chassis (Provides up to seven redundant M13s in two RU of space with fourteen MUX, one SCU. Uses local powered 48 VDC.)
MX2820 SCU, 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)
MX2820 DS3 High Density System, MX2820 23-Inch Chassis (Provides up to nine redundant M13s in two RU of space with 18 MUX, one SCU. Uses local powered 48 VDC.)