Avaya 8300 Series Routine Maintenance page 52

DC power supply replacement
16. Attach the positive and negative terminal leads to the DC input power source
17. Turn the DC input power source on or reset the power source circuit breaker to
18. Turn the power supply switch to the on position.
19. If the LED on the power supply does not turn on, contact the Avaya Technical
52 Routine Maintenance
according to the proper safety and technical specifications for your 48 V power
distribution system.
provide power to the power supply.
Important:
Due to the N+1 power sharing architecture, if your chassis contains two or three
nonredundant power supplies, Avaya recommends that you turn on the power
supplies simultaneously. If you wait longer to turn on the supplies, the power
supplies shut off within 7 seconds. To correct this condition, turn off the power
supplies for 2 minutes, and then simultaneously turn on the power supplies
again.
Solutions Center.
May 2011