We deliberately keep these out of stock, but we have plenty available. A lot of older motorhomes come with reversing cameras that use the PS/2 style connector. We created these adaptors to allow our cameras to be used with the long extension cable to convert them into a 4 pin aviation style connector. All it takes is one of the adaptor A and one adaptor C. These go either end of you long extension cable to create a 4 pin aviation style cable.
On very old motorhomes the PS/2 cable fitted was simply an extension cable for a computer mouse or keyboard. These came in 2 types, one way or 2 way. The one way version had 4 of the pins connected and the 2 way all 6. You could identify if it was one way or two way as the placed arrows on the connector. One arrow or two pointing in opposite directions. However just to complicate matters some were marked one way even though they had 6 pins connected. Our adaptors will not work with true one way cables.
In the UK a number of motorhomes had Obserview cameras fitted and our adaptors will work with most of these. These systems had a switch box which is usually hidden either in the door pillar behind the passenger seat (often under a cover at the bottom), in a random cupboard or close to the switches for TV and reversing camera if this was an option. If the switch box has 2 inputs then adaptor A will work on channel 1. Adaptor B should work on channel 2. Channel 2 is complicated by the fact that the camera at the back might have a wire running to it from the reversing light. This triggers the monitor to switch from channel 1 to channel to or activate the monitor. Adaptor B has a fly wire which can be connected to this wire from the reversing light (if fitted). Sometimes it works but sometimes it does not depending on the model of your switch box.