EXFO FG-750 - Manual (Page 180)

Operating Your RTU in OTDR Measuring Mode
166 FG-750
Performing an Ad Hoc Test
Performing an Ad Hoc Test
An ad hoc test is a manual test where you select the test parameters. The
ad hoc test is useful when you want to perform a standard OTDR test on a
specific port that is not detected. Such a test is also useful when you install
a new RTU to ensure acquisitions are performed normally. The test is
performed immediately after you start it.
When the RTU is used within a system, ad hoc test results are stored in the
database, but not transferred to the EMS server.
The ad hoc test acquisition settings can be automated, where the pulse
and range are automatically calculated, or manually set, where you enter
your own values.
You can select the high-resolution feature to obtain more data points per
acquisition. This way, the data points will be closer to each other, which
will result in a greater distance resolution for the trace.
I
MPORTANT
EXFO does not recommend to test in high resolution if the
acquisition time is less than 15 seconds. It may be impossible to
obtain acceptable performance with this combination of settings.