Avaya Definity TN570C Expansion Interface (Refurbished) KSUs

Avaya Definity TN570C Expansion Interface (Refurbished) KSUsAvaya Definity TN570C Expansion Interface. More Information Provides an interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets Used in a Port Network (PN) between a PN and another PN in a direct connect system and a PN and an SNI in a switch node carrier in a CSS connected system Provides control channel applications and time slot interchanging between the PPN and EPNs Used when ISDN BRI and or ASAI is connected

making it a popular choice for general office environments

and Russia MF

22 programmable feature buttons

The Avaya Definity 7434 D01 Phone is compatible with the Avaya Definity Phone Systems

Volume/Contrast Control

Feature-rich

Up to 8 ports can be used for adjunct switch application interface (ASAI) links

Auxiliary Jack for use with headset

Provides 4 Two Wire E&M Tie Lines

navigation keys

Interfaces can be individually configured to be a network interface or a station side equipment interface

This TIE Nitsuko phone has one way speaker and 6 line buttons