Yes, very similar operations. The older codes allowed "bypass" on the keyswitch, where with the smoke detector still active/building on fire you turned it to bypass and left it there and the elevator went back into normal operation and ran on auto. So I guess if your a firefighter and don't want to run the car on phase 2 to get people out you could just turn the key to bypass and let everyone ride it out normally. I'm not sure when the code changed, but the newer code doesn't allow "bypass" and requires it to say "reset" and the main difference is if a smoke input is still active and you turn it to "reset" and hold it there the car does nothing. It will not bypass and run in auto. A reset keyswitch is supposed to have the smoke inputs cleared before reset will actually reset the car.