EXFO FG-750 - Manual (Page 73)

Getting Started with Your Fiber Guardian
Fiber Guardian 59
Preparing Your Unit for 3G/4G Access
Preparing Your Unit for 3G/4G Access
If your unit is equipped with the optional 3G/4G feature, it can switch to the
wireless network automatically when the wired network is down.This
optional package consists of an internal wireless communication module
and an external antenna.
By default, your unit is configured to connect automatically to the wireless
network, but you can deactivate this feature if you prefer. You can also
specify a maximum number of minutes during which the unit can remain
connected to the wireless network.
When you receive your unit, it contains no Subscriber Identity Module
(SIM) card and the antenna is not connected. This means that you will
need to:

Purchase a compatible and unlocked SIM card from a provider offering
3G/4G services. If you need more information on the 3G/4G coverage
in your area, contact your regional EXFO sales representative.

Have the card activated (you must subscribe to a package of mobile
services).

Connect the antenna to your unit.

Insert the SIM card in your unit.

Configure the 3G/4G parameters via the Web UI.
Note: The 3G card is not covered by the NEBS certification.