- Provides two 50-pin amphenol connections used to interface CO trunks, stations, internal ATA and RAD connections. Also used to connect external devices such as music-on-hold source, paging and auxiliary ringers.
- The Internal Analog Terminal Adapter (I-ATA) provides one connections for a modem, fax machine, or analog telephone.
- Provides emergency line transfer connection in event of power failure
- Initial configuration allows for up to 16 TCM ports compatible with Norstar M7000 and T7000 series telephones (can be expanded to 24)
- Provides two universal slots for expansion cartridges
- Universal power supply