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Smarter Testing for all things 10G 

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DSn/PDH and Legacy SONET/SDH Testing


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EXFO is a recognized leader in telecom network testing. With the large installed base of DSn/PDH and legacy SONET/SDH circuits in access and metro networks, testing, troubleshooting and maintenance is a daily need.

Covering All DSn/PDH and SONET/SDH Interfaces

Our ultra-portable testing solutions for DSn/PDH and full legacy SONET/SDH are ideally suited for field service deployment, and for installation, commissioning and maintenance of access and metro networks. These solutions offer test functions that range from BER measurements to advanced characterization.