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TN775 EPN Maintenance Boards

by Avaya

TN775 EPN Maintenance Boards
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TN775B / TN775D EPN Maintenance Board

The TN775B is a Maintenance Board that monitors power failures for the EPN cabinet in R7si/r or later.

Features

  • 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
  • One Year Warranty Included with Extended Warranty Options at Low Prices!
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