Yes, the '36' in the part number denotes that it's an ADT firmware. The version is 1.44 which is rather old, but shouldn't give you any problems.
The one main issue that G2 firmware had was a bug introduced at 1.53 (I think), where the system would not report burglary events when the intrusion only triggered the 'final' zone type and no other zone. The sounder would still sound, but no monitoring report was issued by the panel.
The one main issue that G2 firmware had was a bug introduced at 1.53 (I think), where the system would not report burglary events when the intrusion only triggered the 'final' zone type and no other zone. The sounder would still sound, but no monitoring report was issued by the panel.