The OneAdvisor‑800 with a 4100‑series OTDR supports FTTA fiber testing for cell tower construction and maintenance. Before testing, all connectors—including launch cables, bulkheads, and patch cords—must be inspected and cleaned using a P5000i or FiberChek probe until they pass inspection. The quick card explains how to connect the tester to the fiber under test, configure FTTA OTDR settings, run measurements, and analyze results. This workflow ensures accurate detection of faults, bends, and connection issues in RF and fiber links, enabling faster deployment and reliable performance of tower‑mounted remote radio units.

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