The company's access control suddenly locked, no credit card, no password will be able to open, and ordinary glass door is no different
May be locked, it may be power is broken, if the credit card is the biggest response may be locked, you can choose Shenzhen Amy Electronics Aimty electric lock, Paul three years, available 5-7 years
After the power connection to see the indicator light does not shine, the buzzer does not ring, the normal work will be buzzer will be issued "tick" sound. If there is no such phenomenon may be the power cord is loose, or use a period of time after the reader chip aging phenomenon needs to be replaced. Check whether the power supply is powered properly, check with a pen, if there is no current, check the wiring is loose, or replace a power cord. If the above operation has not yet solved the problem, you need to find the product supplier to send technical personnel to the scene to detect.
I was doing the door after the ban. You can check it in my way. First, look at the credit card machine is not bright, if not, that is, the controller power off. The Second, look at the keyhole is aligned, only the door of the lock stick and the door on the hole alignment, the lock will fall. Third, the software is set to long open, restore control can be. Fourth, the fixed lock of the screw removed, open the power cord interface, with a multimeter to measure the controller over the power cord is the power or voltage is enough. (The general product is 12V). If the power supply line has a voltage that is not enough voltage, consider checking the output port of the next controller. If the line has electricity, and the lock does not fall, the first three aspects and no problem, you can consider the exchange lock, and may be locked
