Cisco ONS 15454 DWDM - Figure

13-24
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 13 Maintain the Node
NTP-G114 Inspect, Clean, and Replace the Air Filter
Figure 13-5 ETSI Shelf Fan-Tray Air Filter in an External Filter Bracket (Front Door Removed)
Step 5
Push the outer side of the handles on the fan-tray assembly to expose the handles.
Step 6 Pull the handles and slide the fan-tray assembly one inch (25.4 mm) out of the shelf assembly and wait
until the fans stop.
Step 7 When the fans have stopped, pull the fan-tray assembly completely out of the shelf assembly.
Step 8 Gently remove the air filter from the shelf assembly. Be careful not to dislodge any dust that might have
collected on the filter.
Step 9 Visually inspect the air filter material for dirt and dust.
Step 10 If the reusable air filter contains a concentration of dirt and dust, replace the dirty air filter with a clean
air filter (spare filters should be kept in stock) and reinsert the fan-tray assembly. Then, vacuum the dirty
air filter or wash it under a faucet with a light detergent.
Caution Do not leave the fan tray out of the chassis for an extended period of time because excessive heat can
damage the ONS 15454 cards.
Note Cleaning should take place outside of 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.
61235
Fan tray filter