NEC P554U User Manual page 112

4. Mount the filter cover.
Keep to push the filter cover frame around the buttons until a
"click" sound is heard. The filter cover will be secured in position.
* To remove the USB Wireless LAN Unit, disconnect the power
cord and use the above procedure.
NOTE:
• Do not press the button on the USB Wireless LAN Unit. The button does not work
with this model.
6. Installation and Connections
101