Sony LDP-1100A
Thanks to Axel for the pictures.
This is an NTSC laser disc player that is used in Bega's Battle and Cobra Command. It is not compatible with the newer "LDP" series players such as the LDP-1450, LDP-1550, etc. See the Programming Manual for a detailed look at the communication of this laser disc player.
The archive site has a copy of the Operation Manual for the LDP-1000A. Please see the manuals page.