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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 15 Maintain the Node
NTP- D107 Inspect and Maintain the Air Filter
Note Cleaning should take place outside the operating environment to avoid releasing dirt and dust
near the equipment.
Step 11 If you washed the filter, allow it to completely air dry for at least eight hours.
Caution Do not put a damp filter back in the ONS 15454 SDH.
Step 12 Replace the clean filter by completing the following substeps:
a. If the air filter is installed in the external filter brackets, slide the dry air filter all the way to the back
of the brackets to complete the procedure.
b. If the filter is installed beneath the fan-tray assembly, remove the fan-tray assembly, and slide the
dry/clean air filter into the recessed compartment at the bottom of the shelf assembly. Put the front
edge of the air filter flush against the front edge of the recessed compartment. Push the fan tray back
into the shelf assembly.
Caution If the fan tray does not slide all the way to the back of the shelf assembly, pull the fan tray out and
readjust the position of the reusable filter until the fan tray fits correctly.
Note On a powered-up ONS 15454 SDH, the fans start immediately after the fan-tray assembly is
correctly inserted.
Step 13 To verify that the tray is plugged into the backplane, ensure that the LCD on the front of the fan-tray
assembly is activated and displays node information.
Step 14 Rotate the retractable handles back into their compartments.
Step 15 If you replace the door, also reattach the ground strap.
Step 16 Close and lock the door.
Stop. You have completed this procedure.
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