SDH - Synchronous Digital Hierarchy (Part 2) Compensation of frequency synchronization error The pointer can not only fulfill a fixed phase shift and mismatch clock multiplexer clocked device, from which the user data is receiv…

SDH - Synchronous Digital Hierarchy (Part 1) Specific technologies PDH deficiencies have been addressed and overcome technology developers synchronous optical networks (Synchronous Optical NET, SONET), the first version of the standard whi…