Allied Telesis Rapier 48w Switch - Manual (Page 10)

Installation and Safety Guide
9
Install the air filters (NEBS installation only)
Rapier 48w DC switches are shipped with air filters that you must install in each
of the fan units for Network Equipment Building System (NEBS) compliance.
To install an air filter:
1. Using a flat screwdriver, undo the captive screws on the front of the fan
unit.
2. Slide the fan unit out of its cage. The internal power connection is quite
solid, so pull firmly on the captive screws.
3. Insert the air filter into the narrow slot between the front grill of the fan
unit and the fan. Position the air filter with the plastic frame towards the fan
and the pull tab to the top. The air filter should fit snugly.
4. Slide the fan unit back into its cage, making sure that the air filter and the
pull tab are clear of any contact points.
5. Press the fan unit firmly into place and tighten the captive screws on the
front of the fan unit.