Turning Ac Power Supplies On And Off - Nortel Passport 8000 Series Installing And Maintaining

80 Chapter 4 Operating the Passport 8000 Series switch
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If the problem persists, contact the Nortel Networks Technical Solutions Center.
To turn off a Passport 8000 Series switch with a DC power source:
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Turning AC power supplies on and off

To turn on a Passport 8000 Series switch with an AC power supply:
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316314-E Rev 01
If the installed chassis is the 8010co chassis and it is connected to the optional
breaker interface panel, turn the circuit breakers on the BIP to the on position.
Turn the power switch on each power supply to the on position.
Turn the power switch on each power supply to the off position (see
on page 79).
If the installed chassis is the 8010co chassis and it is connected to the optional
breaker interface panel, make sure that the circuit breakers on the BIP are in
the off position.
Verify that the AC power cords are connected to AC power outlets.
Turn the power switch on each AC power supply to the on position. Do not
operate the 8010co chassis with only one power supply.
Note: Due to the N + 1 power system architecture, if your chassis
contains two or three power supplies, Nortel Networks recommends that
you turn on the power supplies simultaneously. If you wait longer to turn
on the second power supply, one of the power supply(s) could shut off
within 7 seconds. To correct this condition, turn off the power supplies
for a short period of time, and then turn on the power supplies again
simultaneously.
Verify that the power LED on each power supply lights green.
Verify that the power supply status LEDs and the fan LED on the 8691SF or
8692SF CPU modules light green.
Figure 40