ShenZhen HongRui Optical Technology Co.,Ltd. specialized in fiber optical equipments. Such as Ethernet media converter or chassis,1-128channel video optical transmitter, POE Switch, PDH multiplexer , Fiber modem, protocol converter ect HongRui strictly executing ISO quality management system, equipped with professional data communication, video test detection equipment, product by CE, FCC, ISO certification. HongRui adhere to the "people-oriented, innovative and stick to honesty, ...