Notifier AFP-1010 Software Type ID Error

Hi all. I have a Notifier AFP-1010 being used as a demo/hobby system, and recently I bought a Notifier IPX-751 combination detector for the system. However, I’m running into issues as the panel doesn’t accept the software type ID, “CMBO”… which is supposedly the correct type ID for the device. I had wondered if it was possibly a compatibility issue, but my CPU is from 1999 and the earliest manual I was referring to was dated 1997. I’ve got some pictures below.

Any help would be greatly appreciated. Thank you!

What protocol does the panel and detector use?

Both the AFP-1010 and IPX-751 use CLIP.