EXFO FG-750 - Manual (Page 141)

Setting Up Your RTU
Fiber Guardian 127
Managing System Setting Values
Managing System Setting Values
There are two types of default values: factory values (used when you need
to revert to factory values) and current default values (used currently to
operate the RTU).
The default values are grouped into categories:

Optical route: to define the IOR (group index), RBS coefficient and
helix factor that the RTU will use when it creates the optical routes. For
more information on these parameters, see Modifying Optical Routes
on page 142.

Test setup: to define, for monitoring and proactive maintenance (two
distinct sets of parameters), test settings such as resolution, acquisition
type (automatic or manual), range, etc. and learning settings such as
the targeted learning count, reset and expand parameters. For more
information on these parameters, see Managing Test Setups on
page 146).

System: to define “global” parameters such as the number of test
setups that will be created automatically, the way fiber breaks will be.
You cannot modify factory default values.