Avaya
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AVDEFTN775C-REF
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 (EI) circuit packs and provides an RS-232 interface for connection to an administration terminal
- Contains a 3-position switch to control emergency power transfer
- TN775C Contains a new DC to DC power converter and is used in maintenance to monitor the R7 or later processor in a Survivable Remote Expansion Port Network configuration
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