LNK-M3G-1V Series Mini-type 3G/HD-SDI Fiber Converter supports 1-channel 3G/HD-SDI Video (audio embedded) & Tally & Reverse RS485 signal transmitted via fiber optical cable, and monitor the signal locally over a 3G/HD-SDI loop output. E-link 3G/HD-SDI Video over Fiber Converters includes one transmitter and one receiver for 1080P 3G/HD-SDI signal.