I have a P9600 panel with EPROM V20B Home Automation. It worked fine with HS2 plugin. In my enthusiasm to test it with HS3 on a new machine I fried (or corrupted) EPROM by using a straight through as opposed to reverse RJ11 cable 
Would an EPROM with version 61B (the label doesn't mention "HA" ) work?

Would an EPROM with version 61B (the label doesn't mention "HA" ) work?