HP48 - InVision48 projector

[hughwong]

l have a InVision48 projector device which suppose to project the screen of the HP48 on to a projector screen. I got this used a long time ago, I could not remember I ever tested it. Now I am retired and wish to test the machine. When I examined the cable came with it, it have two ends, one is a six prong phone jack that plugs into the device, the other is a 8 prong female jack suppose to plug into the calculator. I could not find a HP48 with a 8 pin jack, Does anybody can give me some advise ? Thank You.[/size]