VIAVI OCC-55 Optical CWDM Channel Checker and OCC-56-Optical DWDM Channel Counters are compact and low-cost test solutions, alternatives to spectrum analyzers optical (OSA) service on the ground of the groups responsible for the installation, maintenance, and upgrades of WDM systems test. These selective power meters scanning of the WDM channels according to ITU-T wavelength grid and automatic recording of wavelength/frequency and the related power level.
