... , relay signal to fiber, digital signal to fiber,RS-232/RS-485/422 Fiber Optic Converter, TTL To Fiber Optic ... Converter, RS-232/RS-485/422 converterP/N:Cj-df11-m2 chs digital signal fiber optic ... , multi-Mode ,0~15Km,ST/SC/FC(opt)Description: Cj-df series products are a type of multi-channel analog ... fiber optic converter with 4~20mA 0-10VDC& RS485/232 /422 port Cj-df11-m