Avaya
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AVDEFTN775B-REF
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 expansion interface circuit packs and provides an RS-232 interface for connection to an administration terminal
- 3-position switch to control emergency power transfer
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