15-25
Cisco ONS 15454 Procedure Guide, R5.0
December 2004
Chapter 15 Maintain the Node
NTP-A288 Replace the Fan-Tray Assembly
Figure 15-5 Removing or Replacing the Fan-Tray Assembly (Front Door Removed)
Step 8
If you are replacing the fan-tray air filter and it is installed beneath the fan-tray assembly, slide the
existing air filter out of the shelf assembly and replace it before replacing the fan-tray assembly.
If you are replacing the fan-tray air filter and it is installed in the external bottom bracket, you can slide
the existing air filter out of the bracket and replace it at anytime. For more information on the fan-tray
air filter, see the “NTP-A107 Inspect, Clean, and Replace the Air Filter” procedure on page 15-2.
Step 9 Slide the new fan tray into the shelf assembly until the electrical plug at the rear of the tray plugs into
the corresponding receptacle on the backplane.
Step 10 To verify that the tray has plugged into the backplane, check that the LCD on the front of the fan tray is
activated.
Step 11 If you replace the door, be sure to reattach the ground strap.
Stop. You have completed this procedure.
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Fan tray
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LCD
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