Unplug the main machine power cord before you do the following procedure.
You can only install one of the following network interfaces at a time: (IEEE 802.11 a/g, (Wireless LAN), IEEE1284, Bluetooth).
Remove the slot A cover [A] ( x 2).
Install the interface board [B] (Knob-screw x 2) into the slot A.
Make sure that the machine can recognize the option (see ‘Check All Connections’ at the end of this section).