Raytrans 42E1 SDH Optical Terminal Features and Applications

The Raytrans 42E1 SDH Optical Terminal is an STM-1 level Synchronous Digital Hierarchy (SDH) optical transmission device. The SDH Optical Terminal supports two 155.52Mb/s aggregate optical interfaces (A and B), 42 E1 interfaces, 4 physically isolated Ethernet ports, and 2 V.35/V.11 interfaces. The SDH Optical Terminal can function as an Add-Drop Multiplexer (ADM device), serving as a transmission network node to provide add/drop multiplexing for 42 E1 channels. The SDH Optical Terminal can also function as a Terminal Multiplexer (TM device), operating as an optical transmission module for switches. The SDH Optical Terminal features a concise and comprehensive network management function, enabling configuration, fault query, data statistics, and real-time monitoring of network operation status.

The Raytrans 42E1 SDH Optical Terminal adopts a 19-inch 1U standard chassis structure for easy installation; technical performance fully complies with ITU-T and domestic SDH specifications; VC-12 full cross-connection and channel protection functions; the SDH Optical Terminal provides two STM-1 optical interfaces, supporting 1+1 channel protection; the SDH Optical Terminal uses high-density connector physical interfaces; 2 channels of n×64K (n=1~31) V.35/V.11; the SDH Optical Terminal provides 4 channels of N×E1 bandwidth aggregation with physically isolated Ethernet; E1, Ethernet, and V.35 data services are optional; the SDH Optical Terminal supports point-to-point, chain, and ring networking topologies, and can also be integrated with centralized MSTP systems; the SDH Optical Terminal complies with ITU-T G.813 standard, fully meeting requirements for timing accuracy, pull-in/pull-out, noise generation, noise tolerance, transfer characteristics, and long/short-term phase response (holdover mode); the SDH Optical Terminal features comprehensive network management functions with online real-time monitoring; the SDH Optical Terminal can interconnect with the STM-1 optical interface of any standard SDH/MSTP device.