The control box still works when connected to the sky via rs232 on mine. I have sourced 4 and 6 pin mini din plugs from jaycar already for the guider and 232 cables. If they don;t have it
rs components will. Problem there is finding it in the cattledog, it is huge and finding one with that loop on top might be a problem. We recently got pcb mount usb sockets from there for a qhy5.