NetTest CMA-4000 / CMA-4000i OTDR Calibration and Repair Services

Simbol Test Systems provides professional in-lab NetTest (formerly GN Nettest / Photonetics) CMA-4000 and CMA-4000i Optical Time-Domain Reflectometer (OTDR) calibration and repair services to help maintain accurate, reliable performance for your fiber optic test equipment. These modular, field-portable optical test systems are widely used for network commissioning, fault location, and maintenance.

The NetTest CMA-4000 / CMA-4000i platform supports OTDR measurements for fiber length, splice loss, and reflectance characterization. If your unit shows measurement drift, trace inconsistencies, reduced dynamic range, connector wear, or communication issues with plug-in modules, we can review the failure condition and provide service recommendations.

Following calibration, your equipment may be returned with a calibration label, calibration certificate, and related calibration data. If the unit does not successfully complete calibration, we can evaluate the repair requirements and provide a repair quotation for approval before proceeding.

Traceability: Instrumentation used during this calibration is traceable to N.I.S.T. (National Institute of Standards and Technology) or C.N.R.C. (Canadian National Research Council), where applicable.

Contact Simbol Test Systems with your NetTest CMA-4000 or CMA-4000i and a brief description of the issue to request a calibration quote or repair evaluation.