Installing the DC power supply 35
15Firmly slide the power supply all the way into the bay. See “Job aid: Tightening the retaining screws on the DC power supply” (page 37).
16Tighten the retaining screws to firmly seat the power supply.
17Attach the positive and negative terminal leads to the DC input power source according to the proper safety and technical specifications for your 48 V power distribution system.
18Turn the DC input power source on or reset the power source circuit breaker to provide power to the power supply.
19Turn the power supply switch to the on position.
ATTENTION
Due to the N+1 power sharing architecture, if your chassis contains two or three nonredundant power supplies, Nortel 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.
20If the LED on the power supply does not turn on, contact the Nortel Technical Solutions Center.
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Nortel Ethernet Routing Switch 8300
Installation — DC Power Supply
9 June 2008
Copyright © 2008 Nortel Networks