Is the current OSPI main board compatible with an Expander from the OSPI v1.4 era? Sprinkler guy torched my main board – looks like the shift register got hit and $60 vs $5 for the replacement would usually have me order the part but no idea what else got stressed by the “curious” sprinkler guy who opened the enclosure and started poking a jumper around instead of using my keypad and the instructions printed on the enclosure.