Sony PCWA-C100 Owner's Manual page 15

Getting started
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If your computer has two PC card slots, insert the Wireless LAN PC Card into the top slot. Inserting it into the bottom slot blocks the top slot with its
antenna.
Before using the Wireless LAN PC Card, turn off System Suspend mode or System Hibernation mode using the PowerPanel software. While the
computer is in System Suspend mode or System Hibernation mode, the Wireless LAN PC Card may not be recognized when it is removed and
reinserted.
Removing the Wireless LAN PC Card
To remove the Wireless LAN PC Card, proceed as follows:
1 Close the software that uses the Wireless LAN.
2 Stop PC Card Services using the taskbar or Control Panel.
3 Remove the Wireless LAN PC Card, following the instructions in your computer's manual.
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