Abus pre fabricated bnc cables specification bnc 12351020m abus tvac40050 the abus 20m pre fabricated bnc cable tvac40050 specification bncbnc is a high quality preassembled coaxial cable that provides the perfect connection for your video components for example from a camera to a recorder the cables impedance is 75 ohm and it comes with bnc plugs at both ends abus tvac40050 preassembled bnc cable 20m