


Avaya Definity TN775B EPN Maintenance Board - Refurbished
Features:
The TN775B is a Maintenance Board that monitors power failures for the EPN cabinet in R7si/r or later.
Monitors power failure signals in EPN cabinets
Monitors clock
Monitors and controls battery charger and power supplies
Monitors air flow and temperature sensors
Two serial links for communication for the Expansion Interface (EI) circuit packs, also provides an RS-232 interface for connection with an administration terminal
3-position switch to control emergency power transfer
Equipped with a new DC to DC power converter
WARRANTY: 90-DAY REPLACEMENT WARRANTY / FINAL SALE
Features:
The TN775B is a Maintenance Board that monitors power failures for the EPN cabinet in R7si/r or later.
Monitors power failure signals in EPN cabinets
Monitors clock
Monitors and controls battery charger and power supplies
Monitors air flow and temperature sensors
Two serial links for communication for the Expansion Interface (EI) circuit packs, also provides an RS-232 interface for connection with an administration terminal
3-position switch to control emergency power transfer
Equipped with a new DC to DC power converter
WARRANTY: 90-DAY REPLACEMENT WARRANTY / FINAL SALE
Features:
The TN775B is a Maintenance Board that monitors power failures for the EPN cabinet in R7si/r or later.
Monitors power failure signals in EPN cabinets
Monitors clock
Monitors and controls battery charger and power supplies
Monitors air flow and temperature sensors
Two serial links for communication for the Expansion Interface (EI) circuit packs, also provides an RS-232 interface for connection with an administration terminal
3-position switch to control emergency power transfer
Equipped with a new DC to DC power converter
WARRANTY: 90-DAY REPLACEMENT WARRANTY / FINAL SALE