Fire control alarm on the main standby power switch should be how to check? How do you decide if it's complete and useful?
Check the main power is normal, can shut off the main power (some brand controller is not main power switch button is not directly connected to the electric power (open), producing an electric battery power supply), the controller can work normally (the main power failure is normal); also connected with alternating current, the battery is not connected, controller can work normally, filing electrical fault; the main power by electricity supply, the power supply can not report the fault.
Fire alarm standby power, that is, the main power (AC power) power supply under the case of power failure.
The switch test can turn off the main AC current when the main power supply is in power supply. The controller will automatically use the standby power supply to work properly (after a period of time will report the main power failure, is a normal case), so that's ok.
