I benefits technology company, Shenzhen East GA386-2002 under the current standards, the development of computer control fire shutter. The unique design, complete function, anti-interference ability, reliable performance, interface, rich, easy installation and adjustment simple and quick, cheap and so is the best of modern fire shutter accessory products. 
 II. Product Features 
 1, a key setting function (no DIP switches and potentiometers) 
 2 Press any key to escape 
 3 phase with overload protection and automatic detection of phase sequence, automatic commutation function. (Any three-phase connection) 
 4 fire, with active, passive output terminal for easy control of other fire-fighting facilities. 
 5 dual-mode dual signal for fire protection features: 
 6 Common button box with the reset function 
 7 with the door position status indication, the door-bit state feedback output. (Maximum, median, lower limit) of three independent feedback 
 Volume 8 offside to prevent the positive and negative 
 9 sprinkler output