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Home > Avaya > Avaya Definity > Definity Cards > Avaya Definity TN771D Maintenance Test Card (Refurbished)

Avaya Definity TN771D Maintenance Test Card (Refurbished)

Price: $79.00

Item Code: AVDEFTN771D-REF

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Key Features:

Performs maintenance functions for Definity
Functions include Packet Bus reconfiguration that allows diagnosis and correction of recoverable Packet Bus failures before Link Access Procedure on the D-Channel (LAPD) links fail

- ISDN - PRI testing that originates and terminates loopback tests on ISDN facilities

TN 771D is required in all standard reliability Primary Port Networks (PPNs) and critical reliability Expansion Port Networks (EPNs).
All standard reliability PPNs when packet endpoints (BRI and/or ASAI) are supported

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R9si or Later (Refurbished) Avaya Definity TN2464BP DS1 Interface Circuit Pack (Refurbished) Avaya Definity TN2793 24-Port Analog Circuit Pack (Refurbished) Avaya Definity TN429D Direct Inward/Outward Dialing Card (Refurbished) Avaya Definity TN464GP Universal DS1/PRI Interface (Refurbished) Avaya Definity TN556B ISDN-BRI 4-Wire Interface (Refurbished) Avaya Definity TN567 Audix Multi-Function Board (Refurbished) Avaya Definity TN570C Expansion Interface (Refurbished) Avaya Definity TN573B Switch-Node Interface (Refurbished) Avaya Definity TN716B Interface 1 Card (Refurbished) Avaya Definity TN725B Speech Synthesizer for U.S. English (Refurbished) Avaya Definity TN731B Maintenance Pack Circuit Card (Refurbished) Avaya Definity TN742 8-Port Analog Line Circuit Pack (Refurbished) Avaya Definity TN744E 8-Port Tone Detector for Multiple Countries (Refurbished) Avaya Definity TN747 8-Port Central Office Trunk Circuit Card (Refurbished) Avaya Definity TN748C Tone Detector (Refurbished) Avaya Definity TN750C Announcement Circuit Pack (Refurbished) Avaya Definity TN754 4-Wire DCP Digital Line Circuit Pack (Refurbished) Avaya Definity TN756 Tone Detector (Refurbished) Avaya Definity TN760C Tie Trunk (Refurbished) Avaya Definity TN763-V6 Auxiliary Trunk (Refurbished) Avaya Definity TN765 Processor Interface (Refurbished) Avaya Definity TN767E Interface Circuit Pack (Refurbished) Avaya Definity TN771D Maintenance Test Card (Refurbished) Avaya Definity TN773 Processor Circuit Pack (Refurbished) Avaya Definity TN775D EPN Maintenance Board (Refurbished) Avaya Definity TN777B Network Controller - 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R6 and earlier (Refurbished) Avaya Definity TN790B Processor (Refurbished) Avaya Definity TN793 24-Port Analog Circuit Pack (Refurbished) Avaya Definity TN794 Network Control/Packet Interface (Refurbished) Avaya Definity TN798B Processor With 4MB Flash (Refurbished) Avaya Definity TN801B MAPD LAN Gateway Interface (Refurbished) Avaya Definity UN332 Network Controller Card (Refurbished)

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