"Cooling Fan" host protection: in air or cooling state, if the control panel and the control line between the motherboard disconnected, the host will stop running 10 seconds, into standby mode; if reconnected within 10 seconds It will continue to run. Fault alarm: under refrigeration or air condition, fault indicator blinking under current fault indicator flashes and a buzzer alarm expressed stream, all the equipment will stop working. During operation there is any abnormal situation should immediately stop using and manufacturing company or distribution, please notify service point.