a) The device used for reporting entry door position sends a 0x000281 Door open message into the room
b) The door server in the room sends 0x0002981 Door Server Reports Door Open message into the room.
c) Upon seeing the 0x0002981 Door Server Reports Door Open, the e7w will sound its buzzer sound and
increment the displayed door open count.
5. Close the door. The e7w buzzer stops.
6. Press the FC button to return SERVICE MODE or press UP arrow button to display next mode.
Or
Press the FC button twice to exit SERVICE MODE