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22 About Your Computer
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SMART CARD SLOT (WITH BLANK)—Supports one smart card. Smart cards provide a variety of functions,
including security features and data storage. The blank prevents foreign matter from entering the interior
of the computer when a smart card is not installed in the smart card slot. For more information and
instructions on removing the blank, see "Smart Cards" on page 67.
WIRELESS SWITCH—When enabled through Dell QuickSet, this switch can scan for a wireless LAN (WLAN)
in your vicinity. You can also use it to rapidly turn off or on any wireless devices such as WLAN cards and
internal cards with Bluetooth wireless technology (see "Dell Wi-Fi Catcher™ Network Locator" on
page 58).
W
I-FI CATCHER
™
LIGHT—The light operates as follows:
– Flashing green: Searching for networks
– Solid green: Strong network found
– Solid yellow:
Weak network found
– Flashing yellow: Error
– Off: No signal found
NOTE: The Dell Wi-Fi Catcher Network Locator light appears only when the computer is turned off and
wireless networking is activated in the system setup program. While working in Microsoft Windows
operating systems, the light is designed not to appear.
Attach headphones or speakers to the connector.
Attach a microphone to the connector.
1
"off" position
Disables wireless devices
2
"on" position
Enables wireless devices
3
"momentary" position
Scans for WLAN networks (see
"Dell Wi-Fi Catcher™ Network
Locator" on page 58)
4
Wi-Fi Catcher light
1 2 3 4