What Software Can Work With Rosslare Access Panels?

Not likely. However, to be sure, will you link a model or part number of the panels in question?

As Brian noted, it is unlikely -- I'm not familiar with anything that can utilize that panel, as it looks proprietary.

With that said, when you say you have dozens, can you elaborate on that? Are they clustered together in the same closet, or are they distributed across multiple buildings and locations? How many total doors?

While it sounds scary, depending on the size of your system, a conversion could actually be fairly simple and not nearly as expensive as you'd likely expect. But, nothing is always as simple as it sounds. :)

You are, most likely, stuck. I am a former Rosslare Rep and they are a proprietary format. I don't recall of anyone being able to flash/takeover any of the panels in my time as a rep. Would need to be a complete hardware takeover. I'd tell you to call tech support at Rosslare, but that's a crapshoot. They cleaned house about a year ago and the staff is very lean, now.