DEFINITY MODULES


TN2224 24 Port Digital
Interfaces to 24 2-wire digital voice terminals


TN793B 24 Port Analog
Supports 24 analog voice terminals

   


TN2181 16 Port Digital
Interfaces to 16 2-wire digital voice terminals


TN746B 16 Port Analog
Interfaces Definity ECS to 16 analog voice terminals

   


TN754C 8 Port Digital
Interfaces to 8 4-wire digital voice terminals


TN747B 8 Port CO
Interfaces Definity with 8 CO trunks

   


TN763D 4 Port Aux
Interfaces 4 on-premise devices


TN753 8 Trunk DID
Add 8 DID trunks

   


TN767E DS1/ISDN
Add DS1 and ISDN PRI


TN464GP Universal DS1/ISDN
Adds domestic/international capable DS1 and ISDN PRI

   


120A Integrated CSU
CSU for TN767E and TN464