VeEX FX80 User Manual

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VeEX FX80 User Manual Manual pdf 11 page image

4. Optical Power Measurements4.1. Modes for Optical Power Measurements• PON Burst: use this OLT to ONT pass-through test mode to measures PON opticallevels on active, in-service PON networks.• PON CW: use this OLT to ONT pass-through test mode to measures PON optical levelson out-of-service PON networks that have ONU/ONT devices that can be set tomaintenance CW test mode.• PM (PM1 or PM2): use the OPM test mode to measure any incoming optical signal level(CW, 270, 1000, or 2000 Hz) between the wavelength range of 800-1700 nm. The usermust select a calibrated wavelength that matches the incoming source wavelength.4.2. PON Power Measurements For best results, we recommend you to wait for about 15 minutes after your FX80 ispowered ON. This is especially advisable in environments with extreme temperaturechanges.4.2.1. Setting ZERO Level You MUST set the ZERO level before you first use your FX80 for PON powermeasurements. We also strongly advise to set the ZERO level before every new batch ofmeasurements, and after your measurement conditions have changed.To set the ZERO level:1. Press the |MODE| button to enter the necessary PON measurement mode (PON Burstor PON CW);2. Press |F2| (ZERO). The ZERO notification will show briefly on the display.FX80 PON User Manual D07-00-115P RevA01Page 11 of 36