These displays are not compatible with Mikohn in any way.
CDS mostly made linked progressive but they tied them into the overall slot management platform.
Each slot would report back to the central computer (coin in, coin out, players card etc).
You then had the choice of putting a display in any particular slot and displaying marketing messages, messages targeted to the player (based on info from player tracking).
You could define progressive groups - a group was anywhere from 1 machine to 256 and you could have 256 groups.
Really good system not well suited for home users. There is some level of Ebay hardware floating about however without the central management system (of which few made it to the wild) the boards and displays are useless.
Mikohn only made progressives. Mikon was bought by Progressive Gaming International and then rolled into IGT who buried them.
Here is a write up from Bloomberg on CDS
https://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=330545If you just need a display (called a meter) lots of ChamII's (not plus) boards floating around. Not many people have use for the NON-Standalone version subsequently they go cheap.
Someone might just sell the meter off. I would call the vendors on the home page and see what they have for sale.