COSA-4055 CWDM Modul

Optical Spectrum Analyzer Module

COSA-4055 CWDM Modul

The COSA-4055 module for the T-BERD/MTS-2000, -4000 V2 and -5800 and OneAdvisor-800 platforms offers the functionality and speed of an OSA in a handheld form factor at a fraction of the price of a traditional OSA. It is an ideal test tool for service providers to install, maintain and upgrade metro/access links and CWDM systems. It measures wavelengths and power levels of CWDM channels and displays the complete spectrum.


  • Field interchangeable single slot size
  • Full wavelength range 1260 to 1630 nm
  • Drift measurements for wavelength and power
  • Simple for a novice, fully featured for an expert
  • Can be combined with CWDM OTDR modules


  • Performance verification in Metro Access Networks
  • Maintenance and troubleshooting of CWDM networks
  • Upgrade of CWDM networks
  • Spectral and drift testing of CWDM sources

Key Features

  • Handheld, fully-functional CWDM OSA
  • Fast scanning speed (4s)
  • Zoom and marker functions
  • Pass/Fail analysis

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