Sierra Wireless AirCard 503 User's Guide download pdf (Page 12)

Rev 7 Dec.10 9

LED operation

The AirCard USB Modem has two LEDs that show the current status of the

modem.

Power LED

SIM card slot

Data LED

Power LED

SIM card tray

microSD card slot

Data LED

LED State Indicates

Power Off Indicates one of the following states:

• The AirCard USB Modem is not inserted in the computer.

• The computer is off or in “suspend and resume” mode.

• The AirCard USB Modem radio has been turned off using Watcher or

other connection management software.

Solid Blue The power is on, the AirCard USB Modem is working normally.

Blinking Blue The firmware is being updated.

Do not remove the AirCard USB Modem from the computer.

Blinking Amber The AirCard USB Modem is searching for service (initializing).

Solid Amber Error—either the AirCard USB Modem is having a problem initializing

(searching for service) or is offline because of a failure.

Contact your service provider.

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Sierra Wireless AirCard 503 User's Guide Page 12