I have an EMCO 7122 remote EMC head unit and 7120 controller, but no fibre optic link to RS232 interface. Does anyone have a scan of the manual for the 7122? I now have the manuals for the 7120 and the associated 7140 RS232 controller and fibre link. If I can't find an RS232 interface, I'm going to try to reverse-engineer the fibre protocol. I need to know what sort of fibre connector the 7120 needs.