Universal Avaya Definity Tn775d Epn Maintenance Board (refurbished) Holiday Cheer Edition [ZUuS0pav]

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
• TN775 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