This was a custom system that was updated recently. This is a fully functional 100% operating system. All keypads are in perfect condition. 10 out 10. There is the main board, 2 zone expenders 24761143 RevB, 1 RF range extender SA5800HG W86995 (Honeywell RFEM), 3 Alpha keypads S2681, an external power supply board SPS601, 2 AC adapters, 1 back up battery. No EOL resistors. Don't know much about this system but again was in 100% working condition at the time of removal.
If I can get some more info about this panel I will post a link.