One DS1 circuit (24 channels) that can be configured for either T1 or PRI service

Built-in CSU/DSU for Merlin Magix Release 1.5 or higher

Limit three DS1/INA modules per system; limit two per carrier

100DCD card functions like a 100DS1 without CSU/DSU functionalities for the Merlin Legend and Magix R1.0

Magix Modules require a clamshell when installed on the Merlin Legend plastic carrier.