DWDM Channel Checks are a mandatory requirement on Telstra's 5G Tower Installs and Upgrades

VIAVI OCC-56 DWDM Optical Channel Checker is a compact and low-cost test alternative solution to optical spectrum analysers (OSA) for field service groups tasked with the installation, maintenance and upgrades of WDM systems testing. These selective power meters scan the WDM channels according to ITU-T wavelength grid and automatically record wavelength/frequency and related power level.


  • Low-cost alternative to an OSA for applications which do not require OSNR measurements
  • Small and lightweight ruggedized design optimised for highly mobile field workers
  • Save and download measurement results and certify your work with off-line report generation


  • Installation, maintenance and upgrade of DWDM systems
  • Analysis of single channel before MUX and DEMUX Qualification of multiplexed signals
  • In-service measurement and network element verification Channel drop testing at optical add/drop multiplexers (OADM)


  • ITU-T 100/200 GHz DWDM channels
  • Channel drift monitoring
  • Bar Graph and Table of results display mode
  • Light and compact (0.5kg/1.1lb)
  • Client USB port (standard) and Host USB port (optional)
  • Integrated fast battery charging function
  • Report generation via OFS-355 Smart Optical Reporting Software
Model # OCC-56C
Brand VIAVI (formerly JDSU)

3 Years Return to Base Warranty



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