All:
I came across a video monitor for one of my machines that has an 8-pin
rectangular connector with locking tabs. I remember from my days as an
audio-video geek in high school that this is sometimes called an =B3EIA
connector=B2. I remember we used these cables to connect JVC and Sony VTR
equipment.
If it's the connector I'm thining of (8 pins in a 4*2 array, with a
larger gap between the rows at one end to give polarisation), then I
remmeber it as an EIAJ connector.
I've seen them used on reel-to-reel VTRs, for audio in/out, video in/out
and 4 grounds. I've also seen them used for RGB + Sync.
-tony