AirCard USB Modem User Guide
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LED operation

The AirCard USB Modem has two LEDs that show the current status of the
modem.
Connection management software
Your AirCard USB Modem comes with Sierra Wireless AirCard Watcher® for
Windows® and Mac®, or other connection management software, depending on
your service provider. Use this software to manage the modem and monitor your
connections.
For information on Watcher features and using Watcher, refer to the online Help.
1. From the main Watcher window, select:
·Help > Help Topics or click the button (Windows)
·Help > Sierra Wireless Watcher Help (Mac)
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 i s having a problem initializing
(searching for service) or is offline because of a failure.
Contact your service provider.
Data Off The modem is unable to detect 2G or 3G service.
Blinking Amber The modem has detected a 2G network (EDGE, GPRS, GSM) and is ready
to connect.
Solid Amber The modem is connected to a 2G network and is able to send and receive
data.
Blinking Blue The modem has detected a 3G network (UMTS, HSPA, HSPA+, DC-HSPA+)
and is ready to connect.
Solid Blue The AirCard USB Modem is connected to a 3G network and can send and
receive data.
Blinking Green The modem has detected an LTE network and is ready to connect.
Solid Green The modem is connected to an LTE network and is able to send and receive
data.