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Introducing the AirCard 402 modem
when you insert the modem into your computer and go
through the software installation; an installation CD is not
required.
System components
Your modem is just one part of a system designed to provide
you with a wide range of communication features. Every
component of the system is needed to enable these capabilities.
Your host computing device
Your notebook or desktop computer hosts the modem
hardware and runs the communication software: your web
browser or e‐mail application, and Watcher—the enabling
software for the modem.
You may also have other software on your computer that can
be used wirelessly with the modem, such as: file transfer appli‐
cations (FTP), chat or instant messaging, a VPN (Virtual
Private Network) client, client software for a corporate server
application.
The ExpressCard/PC Card modem
The modem provides your computer with a connection to the
CDMA wireless network.
The modem fits into a standard ExpressCard/34 or
ExpressCard/54 slot or, when used in the card adapter, into a
PC Card slot available on most notebook and desktop
computers.
Every CDMA network operates on one of three radio
frequency bands. As a dual‐band product, the modem
operates on two of these bands (see page
34), providing a wide
coverage area.
The modem drivers and enabling
software
The modem drivers and enabling software (Watcher) monitor
and manage your wireless connections.
Your modem uses the Sierra Wireless TRU‐Install feature—the
drivers and software are installed when you insert the modem
into your computer.
The device driver software enables the modem to work with
your computer's operating system.
Document 2131145. Rev 1.0 May.09
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