The T‑BERD/MTS‑5800 with a CWDM Optical Channel Checker allows technicians to quickly verify CWDM channel presence and power levels. Before testing, all fiber connections must be inspected and cleaned using a VIAVI P5000i or FiberChek probe until they pass inspection. The quick card explains how to connect the tester to the fiber under test, configure OCC settings, run channel measurements, and analyze results using the COSA‑4055 module. This workflow ensures accurate CWDM channel verification, helps detect power issues or missing wavelengths, and supports efficient troubleshooting in CWDM networks.

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