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Refurbished Business Phone Systems

Definity Cards

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  • Avaya Definity TN777B Network Controller - R6 and earlier (Refurbished)
    Avaya Definity TN777B Network Controller - R6 and earlier (Refurbished)
    Avaya Definity TN777B Network Controller (R6 and earlier). More Information Communicates control channel messages between the processor circuit pack and the distributed network of port circuit packs on the TDM bus Controls 4 data channels that process and route information directly from the processor...
    $39.00
    $39.00
  • Avaya Definity TN777 Network Controller (Refurbished)
    Avaya Definity TN777 Network Controller (Refurbished)
    Avaya Definity TN777 Network Controller Card. More Information Communicates control channel messages between the processor circuit pack and the distributed network of port circuit packs on the TDM bus Controls 4 data channels that process and route information directly from the processor circuit pack...
    $49.00
    $49.00
  • Avaya Definity TN776 Expansion Interface (Refurbished)
    Avaya Definity TN776 Expansion Interface (Refurbished)
    Key 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 Packages the TDM control channel with Link Access Procedure on the D-channel (LAPD) for transmission...
    $89.00
    $89.00
  • Avaya Definity TN775D EPN Maintenance Board (Refurbished)
    Avaya Definity TN775D EPN Maintenance Board (Refurbished)
    Key Features: Used in maintenance and monitors power failure signals in an EPN cabinet in R7si/r or later Monitors clock, monitors and controls power supplies and battery charger, monitors air flow and high temperature sensors Provides 2 serial links to communicate with Expansion Interface...
    $199.00
    $199.00
  • Avaya Definity TN775C EPN Maintenance Board (Refurbished)
    Avaya Definity TN775C EPN Maintenance Board (Refurbished)
    Key Features: Used in maintenance and monitors power failure signals in an EPN cabinet in R7si/r or later Monitors clock, monitors and controls power supplies and battery charger, monitors air flow and high temperature sensors Provides 2 serial links to communicate with Expansion Interface...
    $59.00
    $59.00
  • Avaya Definity TN775B Maintenance Pack (Refurbished)
    Avaya Definity TN775B Maintenance Pack (Refurbished)
    Key Features: Provides maintenance and monitors power failure signals in an EPN cabinet in R7si/r or later. Also monitors clock, monitors and controls power supplies and battery charger, as well as air flow and high temperature sensors Provides two serial links to communicate with...
    $40.00
    $40.00
  • Avaya Definity TN773 Processor Circuit Pack (Refurbished)
    Avaya Definity TN773 Processor Circuit Pack (Refurbished)
    Key Features: Mfr. Part #: TN773 Using AMIS Analog Networking software applications, up to 485 different locations can be networked Provides network control interface (NETCON), the packet interface (PACCON), and, if VX.25 connectivity is not required, the processor interface (PI) Provides eight asynchronous data...
    $85.00
    $85.00
  • Avaya Definity TN772 Duplication Interface (Refurbished)
    Avaya Definity TN772 Duplication Interface (Refurbished)
    Key Features: Selects the Active Switch Processing Element (SPE) in high reliability and critical reliability systems Controls the memory shadowing function with the duplication option, terminates the environmental sensors, and controls the integrated battery supply and charging circuits A second TN772 Circuit Pack resides...
    $49.00
    $49.00
  • Avaya Definity TN771DP Maintenance and Test (Refurbished)
    Avaya Definity TN771DP Maintenance and Test (Refurbished)
    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...
    $79.00
    $79.00
  • Avaya Definity TN771D Maintenance Test Card (Refurbished)
    Avaya Definity TN771D Maintenance Test Card (Refurbished)
    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...
    $79.00
    $79.00
  • Avaya Definity TN770 Memory Circuit Card (Refurbished)
    Avaya Definity TN770 Memory Circuit Card (Refurbished)
    Key Features: Mfr. Part #: TN770 Memory Circuit Card Avaya Definity
    $79.00
    $79.00
  • Avaya Definity TN768 Tone Clock (Refurbished)
    Avaya Definity TN768 Tone Clock (Refurbished)
    Key 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 Equipped with 2 MHZ, 16 kHz, and 8 kHz clocks Can transmit the system clock and tones on...
    $69.00
    $69.00
  • Avaya Definity TN767E Interface Circuit Pack (Refurbished)
    Avaya Definity TN767E Interface Circuit Pack (Refurbished)
    Key Features: 767 B/C/D supports DS1 Digital Connectivity Supports CO, TIE, DID, and Off-Premises Stations (OPS) port types using robbed bit signaling protocol Supports ISDN-PRI in Release 6 and higher TN 767E is required to communicate with conversant and for enhanced maintenance capabilities of...
    $29.00
    $29.00
  • Avaya Definity TN767D V5 Auxiliary 4 Trunk Interface Circuit Card (Refurbished)
    Avaya Definity TN767D V5 Auxiliary 4 Trunk Interface Circuit Card (Refurbished)
    Key Features: Mfr. Part #: TN767D Auxiliary 4 Trunk Interface Circuit Card
    $49.00
    $49.00
  • Avaya Definity TN767 DS1 Interface Circuit Card (Refurbished)
    Avaya Definity TN767 DS1 Interface Circuit Card (Refurbished)
    The Avaya Definity TN767 DS1 Card supports DS1 Digital Connectivity, CO, TIE, DID and OPS Port Types, and ISDN-PRI (Release 6 and Higher). Key Features: TN767 DS1 (TN767) Supports DS1 Digital Connectivity Supports CO, TIE, DID, and OPS Port Types using Robbed Bit Signaling...
    $69.00
    $69.00
  • Avaya Definity TN765 Processor Interface (Refurbished)
    Avaya Definity TN765 Processor Interface (Refurbished)
    Avaya Definity TN765 Processor Interface. More Information Integrates the tone generator, tone detection, system clock, and synchronization functions onto one circuit pack for use in standard, high, and critical reliability systems Provides 4 data links to the Time Division Multiplexing (TDM) bus and a...
    $99.00
    $99.00
  • Avaya Definity TN763D Auxiliary Trunk (Refurbished)
    Avaya Definity TN763D Auxiliary Trunk (Refurbished)
    Key Features: Provides 4 ports Each port has T, R, SZ, SZ1, S, and S1 signal leads Used for on-premises applications such as music-on-hold, loudspeaker paging, code calling, and recorded telephone dictation access
    $45.00
    $45.00
  • Avaya Definity TN763C Auxiliary Trunk (Refurbished)
    Avaya Definity TN763C Auxiliary Trunk (Refurbished)
    Key Features: Provides 4 ports Each port has T, R, SZ, SZ1, S, and S1 signal leads Used for on-premises applications such as music-on-hold, loudspeaker paging, code calling, and recorded telephone dictation access
    $69.00
    $69.00
  • Avaya Definity TN763-V6 Auxiliary Trunk (Refurbished)
    Avaya Definity TN763-V6 Auxiliary Trunk (Refurbished)
    Key Features: Mfr. Code #: TN763-V6 Auxiliary Trunk
    $65.00
    $65.00
  • Avaya Definity TN762B Hybrid Line Circuit Card (Refurbished)
    Avaya Definity TN762B Hybrid Line Circuit Card (Refurbished)
    Key Features: 8 ports connecting to multi-appearance hybrid analog and digital voice terminals Connects to 7300 series telephones, an MDC-9000 and an MDW-9000 series wireless telephones
    $49.00
    $49.00

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