HAI Omni Serial Interface

Hey all, I have an older OnQ HMS security panel that I would like to get hooked to OH if possible. (It’s a rebranded HAI Omni.) I have the serial interface board (10A17) and a GlobalCache GC-100 that I hope to use to connect it. Has anyone done this? I found the Omni-Link serial protocol description but I’ve never done anything with a serial interface before. If I understand correctly I need a map file that the GC-100 will use to communicate over the serial port.

I believe the official Omnilink binding is for the newer panels that support IP on the board.

I figured I would ask before I spend too much time fumbling around.