Nex-G Innovations

Advance Diploma in SDH and SONET

Synchronous Optical Networking (SONET) and Synchronous Digital Hierarchy (SDH) are standardized protocols that transfer multiple digital bit streams synchronously over optical fiber using lasers or highly coherent light from light-emitting diodes (LEDs). At low transmission rates data can also be transferred via an electrical interface. The method was developed to replace the Plesiochronous Digital Hierarchy (PDH) system for transporting large amounts of telephone calls and data traffic over the same fiber without synchronization problems. SONET generic criteria are detailed in Telcordia Technologies Generic Requirements document GR-253-CORE. Generic criteria applicable to SONET and other transmission systems (e.g., asynchronous fiber optic systems or digital radio systems) are found in Telcordia GR-499-CORE.

Code: NES_SK_1301

Duration: 60 Hrs / 1 month / Customized

Mode: Online / Offline / Onsite


Digital Voice and Plesiochronous Digital Hierarchy (PDH)

SONET/SDH: Protocols and Concepts

SONET/SDH Path Overhead and Payload Mappings

SONET/SDH Network Elements and Applications

Synchronizing SDH and SONET

SONET/SDH Multiplexing

More Information