EXFO PPM-350D, User Manual

Page: 41 / 75

Performing FTTx Measurements
PON Power Meter
33
Performing a Measurement
Performing a Measurement
At startup, the unit uses the same configuration that was used during the
last test session.

Pass/Fail status is indicated directly (screen and LEDs). Status is
determined according to the current threshold set (see
Selecting a
Threshold Set
on page 31).

If no thresholds are present in the configuration in use, only the power
levels are shown and LEDs are off.
Measurements on the ONT side are designed for burst measurements
coming from ONTs that respect known standards of duration. For CW
measurements, activate the ONT CW option as shown in
Setting
Parameters
on page 24.
To test in Pass/Fail or Normal mode:
1.
Inspect your fibers and clean them properly if needed (see Cleaning
and Connecting Optical Fibers
on page 21 for details).
2. Connect as shown:
Test at the premises
Test jumper
OLT/video port
Test jumper
ONT port
Drop cable
Bulkhead connector