SDH Multiplexer
Synchronous Optical Networking (SONET) and Synchronous Digital Hierarchy (SDH) are standardized multiplexing protocols that transfer multiple digital bit streams 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.
Mini STM-1 SDH Multiplexer
155SC is a STM-1 optical transmission system, which technical performances comply with ITU-T standards. The system features high integration, flexible structure and strong network adaptability. 155SC provides two 155.52Mb/s optical..… Read more
Compact STM-4 SDH Multiplexer
622X is a STM-4 equipment. Based on Raycom patented ASICs, its technical performance complies with ITU-T standards. This system features a high degree of integration, compact conformation and strong network adaptability.… Read more
Ethernet over STM-1 (with 1+1 SFP optical port)
Ethernet over SDH / STM-1 (EoS) provides a simple, cost effective and compact solution to convert 10/100BaseT data interface on the user side and transport Ethernet traffic over a STM-1 SDH link and reconstruct the data back to ethernet frame format, at remote end… Read more
Gigabit Ethernet over STM-1
Gigabit Ethernet over SDH (STM-1) provides a simple, cost effective and compact solution to convert 10/100/1000Base-T (Gigabit) data interface on the user side and transport Ethernet traffic over a STM-1 (155Mbps) SDH link and reconstruct the data back to ethernet frame format, at remote end.....Read more