Kevin Cassidy oscilloscope product planner at Tektronix

The synchronous optical network/synchronous digital hierarchy (SONET/SDH) standards for optical telecommunication networks are the most comprehensive means of implementing transport infrastructures. The increased configuration flexibility and bandwidth availability of SONET/SDH provides significant advantages over older telecommunication systems. However, as the data capacity of SONET/SDH fibre optic telecommunication networks increases, equipment manufacturers, network operators and end consumers would experience significant losses if a system were to fail.