FX80 / FX81 PON Optical Power Meters User Manual
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6.0
Optical Power Measurements
6.1
Modes for Optical Power Measurements
PON Burst/PON:
OLT to ONT pass-through test mode measures optical levels on active, in-
service PON networks. It is specifically optimized for upstream burst signal measurement.
PON CW:
OLT to ONT pass-through test mode measures optical levels on out-of-service PON
networks that have ONU/ONT devices that can be set to maintenance CW test mode. Also useful
for characterizing loss of Co-Existence (CEx) elements using a companion light source.
PM (PM1 or PM2):
OPM test mode to measure any optical signal level. The signal can be CW,
or modulated with 270, 330, 1000, or 2000 Hz. The Wave ID function will automatically set the
wavelength calibration to match the input wavelength provided a compatible VeEX source is
used.
6.2
PON Power Measurements
To use the FX80 or FX81 for PON measurements, connect the two fibers to the correct OLT and
ONT test port.
FX80/FX81 Top Panel, FX80 or FX81 (4-wavelength) with opt. BB OPM on the left,
FX81 (5-wavelength) on the right
For best results, wait 5 minutes after the FX80/81 is powered ON.
This is
recommended in environments with extreme temperature changes.
