... -network system. Shenzhen Comark Technology Co., Ltd. is a professional manufacture for industrial network equipment, adopting the latest ... DC24V, power consumption less than 4W, with the function of DC1500V voltage isolation and reverse polarity protection, industrial terminal interface ... the rate, use for point to point type, multi-mode fiber 0~2Km, single-mode fiber 0~20Km, more remote optional, ...