How often should CD PMD testing be done?

TNS Comms UK offers specialized CD PMD Dispersion Testing for high-speed fibre networks, helping prevent latency and performance issues. Using advanced EXFO and VIAVI test equipment, they provide accurate readings for Chromatic Dispersion and Polarization Mode Dispersion. These diagnostics are essential for ensuring long-haul and metro network reliability. Their testing services help prequalify existing fibres for future upgrades.