EXFO FTB-500 (Window XP) - Manual (Page 107)

Working with Your Unit
FTB-500 97
Accessing the Internet with a 3G USB Modem Key
Accessing the Internet with a 3G USB Modem
Key
Note: Only administrator-level users can install software under Windows XP
However, when the installation is complete, all users will have the
possibility to access the Internet with a USB modem key.
Your can connect an optional 3G USB modem key to your unit to have a
wireless access to the Internet.
When you receive your modem key, it contains no Subscriber Identity
Module (SIM) card. This means that you will need to:

Purchase a compatible and unlocked SIM card from a provider offering
3G services. If you need more information on the 3G coverage in your
area, contact your regional sales representative.

Have the card activated (you must subscribe to a package of mobile
services).

Insert the card in the modem key.
The very first time you connect a USB modem key to your unit, the AirCard
Watcher application will be installed automatically on your unit. You will
use this application to establish a connection with the mobile network
whenever you want to work with your USB modem key. You only need to
install this application once.