... protection DTV1000 series VoF unit can transmit 1 line bidirectional digital video broadcasting, 1 line bidirectional high-fidelity audio, 1 line bidirectional ... types: wall method, rack in 19inches 1U, or plug in-card.Video interface:Input/output impedance: BNC 75 ohm unbalance interfaceInput/output ... :220V-48V,+24V+12,+5V optional power 5W (single terminal) Digital Video Transmitter and Receiver