BD-12G-1V1T1D Series Mini-type 12G-SDI over Fiber Converter supports 1Ch 12G Video (audio embedded), 1Ch Tally signal and 1Ch Backward RS485 transmitted via fiber optical cable. 12G sdi to fiber converter monitors the signal locally over a 12G loop output. It is also called fiber to sdi converter,includes one transmitter and one receiver for HDTV 4K*2K(3840*2160@60Hz), 1080P,1080I, 720P.It uses full digital non-compression broadcast level transmission. BD-12G-1V1T1D is a 12G-SDI over fiber converter module designed in a small form factor for standalone use. 12G sdi to fiber converter supports transmission distances of up to 10 to 80 kilometers and are directly compatible with 12G/6G/3G-SDI cameras.12G-SDI fiber converter contains 8 channels of audio embedded per SDI channel. Fiber to sdi converter supports ST-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD) and ST-259(SD) simultaneously.