... product provides customer with the most cost-effective solution for transmission of 1 channel bi-directional HD-SDI/SDI/ASI ... 1 channel SDI/ASI transmitter and receiver, Standalone, 1310nm transmission wavelength, FC connector, 220VAC power supplyF13-SD-1VTB-W3043CA ... ASI transmitter with 1+1 input redundancy, Standalone, 1550nm transmission wavelength, SC connector, 220VAC power supplyF13-HD-1VRB- ...