Dell Inspiron 1521 Owner's Manual page 5

1 security cable slot
3 Wi-Fi Catcher light
5 audio connectors
security cable slot — Lets you attach a commercially available antitheft device to the computer (see
wireless switch — When enabled through Dell QuickSet, this switch can scan for a wireless local area network (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
Locator).
1 off Disables wireless devices.
2 on Enables wireless devices.
3 momentary Scans for WLAN networks (see
4 Wi-Fi Catcher light Flashing green: Searching for networks
l
Solid green: Strong network found
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Solid yellow: Weak network found
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Flashing yellow: Error
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Off: No signal found
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NOTE: The Wi-Fi Catcher Network Locator light appears only when the computer is turned off and the wireless switch is configured in the system setup
program (BIOS) to control Wi-Fi network connections.
CAUTION: Do not block, push objects into, or allow dust to accumulate in the air vents. Do not store your computer in a low-airflow environment,
such as a closed briefcase, while it is running. Restricting the airflow can damage the computer or cause a fire.
air vents — The computer uses an internal fan to create airflow through the vents, which prevents the computer from overheating. The computer turns the fan
on when the computer gets hot. Fan noise is normal and does not indicate a problem with the fan or the computer.
audio connectors
Attach headphones to the connector.
Attach a microphone to the connector.
ExpressCard slot — Supports one ExpressCard. The computer ships with a plastic blank installed in the slot. For more information, see
2 wireless switch
4 air vents
6 ExpressCard slot
Dell Wi-Fi Catcher™ Network Locator).
Security Cable Lock).
Dell Wi-Fi Catcher™ Network
Using ExpressCards.