This SAE-30P4FE4E1-SHTRX is modular structure point-to-point optical transmission equipment with LCD display, uses the FPGA chips and easy to upgrade , which supplies, 4 ethernet port and 2 AUX port which is for transmitting other data such as RS232/RS485/RS422,dry contact closure, two optical interface for optional 1+1 auto protection switch (APS). 4 slots plug-in modules which included 4xE1 channels module, FXO/FXS module and 2x Nx64K V.35 module. The maximum capacity will be up 4 multi function plug-in modules which could be combinations with above modules. The high flexibility, performance, is the best solution for voice/data/video services in existed market. 4 expansion interface can be used as the transmission channel of RS232/RS485/RS422 asynchronous data, phone signal, 2/4 line E&M audio signal, switch signal, Ethernet signal (Bandwidth 2M). 

SAE-30P4FE4E1-SHTRX is made with high quality of rigorous screened components, which have superior performance in stability, environmental adaptability. It can work normally in very cold environment to very hot from -35℃to +75℃. The product is planned in a way to have better resistance against corrosion and electromagnetic interference. Power input also made a suitable and reliable types of power, to get more powerful suitability to environment.