Nortel Passport 15000 Hardware Installation And Maintenance page 474

474 Chapter 17 Hardware procedures
241-1501-240 5.2S2
6 Loosely fasten another screw through the other upper mounting-ear hole,
then the bottom 2. While turning a screw, ensure that it is perpendicular
to the hole to prevent cross-threading.
7 Tighten all screws to snug plus a 1/4 turn.
8 If any cable for the F1, F2, or F3 connectors on the front of the unit is
unplugged, plug it in. The connectors fit only one way. Ensure the tab on
the side engages.
9 Using the labels from the removal, plug in the A and B power cable
assembly connectors into the appropriate connector on the unit. Each
connector fits only one way. Ensure that the tab on each side of a
connector fully engages.
10 Restore power to the unit at the BIP by removing the tape from the cooling
unit breakers (in the middle) in each BIM and switching the breakers back
on by pressing the bar symbol (|) in.
11 Check the LEDs on the cooling unit to verify that each fan is operating.
Normal operation is indicated by a lit green LED. If any LEDs are red,
disconnect and re-connect the F1, F2, or F3 cable that is nearest the fan
unit that is nearest the LED.
At the front of the NEBS 2000 frame or equivalent, the LEDs of both
cooling units are visible together. Ensure that you check the F1, F2, or F3
connector that is associated with the lit red LED.
12 Pack the removed cooling unit in the container from the replacement unit.
Ensure that you change the PEC on the container to match the PEC on
the unit.