Avaya Definity System

Definity TN767C

The 767 B/C/D supports DS1 Digital Connectivity.

Definity TN767E

The Definity TN767E features: Supports DS1 Digital Connectivity. Supports CO, TIE, DID, and Off-Premises Stations (OPS) port types using robbed bit signaling protocol.

Definity TN768

The Definity TN768 features: Supplies timing, including Stratum 4 timing to the Port Network (PN). Produces the following tones: call progress, touch tones, answer-back, and trunk transmission test.

Definity TN771

The Definity TN771 features: Performs maintenance functions for Definity. Functions include Packet Bus reconfiguration.

Definity TN771D

The Definity TN771 Performs maintenance functions for Definity.

Definity TN771DP

The Definity TN771DP performs maintenance functions that allows diagnosis and correction of recoverable packet bus failure before the link access procedure on the D-channel links fail. It performs other maintenance functions.

Definity TN772

The Definity TN772 features: Selects the Active Switch Processing Element (SPE) in high reliability and critical reliability systems.

Definity TN773

The Definity TN773 is a Processor Ciruit Pack.

Definity TN774

The Definity TN774 is a Tape Drive Circuit Pack.

Definity TN775B

The Definity TN775B features: Used in maintenance and monitor power failure signals in an EPN cabinet in R7si/r or later.

Definity TN776

The Definity TN776 features: Connected to the Time Division Multiplexing (TDM) bus in one Port Network (PN) is an interface between that PN and the TDM bus extended to another PN.

Definity TN777

The Definity TN777 features: Communicates control channel messages between the processor circuit pack and the distributed network of port circuit packs on the TDM bus.

Definity TN777B

The Definity TN777B features: Communicates control channel messages between the processor circuit pack and the distributed network of port circuit packs on the TDM bus.

Definity TN778

The Definity TN778 features: Interfaces the packet bus with the SPE and terminates Link Access Procedure on the D-Channel (LAPD) links.

Definity TN786B

The Definity TN786B features: Manages the Lucent Definity G3 system and executes stored programs to perform call processing and maintenance.

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