How do I connect a monitor with 5 BNC connections to VGA card ?
The monitors which have 5 BNC connector inputs are easy cases because the signals they need are similar to the ones VGA card gives. The only difference that those monitors use 5 high quality BNC connectors instead of cheap 15 pin VGA connector. There are ready made cables available because they are used with some high end PC displays and some workstations. If you want to make your own cable then look at the following diagram which is based on recommended cable diagram published in one Nokia monitor manual. The original circuit digram in the manual had some mistakes, but I have corrected all mistakes form the picture I have found. This kind of monitor cables are available ready made on good computer ships, so you don’t necessarily have to make one yourself (unless you want to). The grounding arrangements can vary slightly from cable to cable, the signal connections are the same in commercial cables. Other wiring method suggested in “Notes on Video Conversion” by Samuel M.
