We usually put the card reader on the metal surface of the attendance device, because the card reader is a special product, so whether it is in front or behind, its metal device will absorb the signal of the card reader. If the metal surface of the time attendance device is large, it will affect the card reading function. Perhaps the reading distance is too far, and the card reading function will be greatly attenuated. Because if the distance between the two card readers is too close, it will also affect the function of the card readers. If the two card readers are too close together, then our card reading function may malfunction, affecting the normal card reading function.
Next, the Kunshan monitoring installation editor will tell us about the wiring standard of the electronic lock of the attendance device to the controller. The electronic lock of the monthly attendance device has a relatively large working current, so there will be a certain distance between the electromagnetic lock and the controller, and if the current is too large, the battery will sometimes work, but it will block. . Then we are settling, the wire from the electronic lock to the controller is the wire. If the length of the wire is less than 50 meters, you need to add an extra power cable, so that the effect of parallel power supply can be generated, and if the site is greater than 100 meters, then we Move the controller as close to the electronics as possible to shorten the wiring distance.
Next is the wiring standard from the door sensor to the controller. When encountering such a situation, the editor is here, I suggest that we try to use a wire with two chips, and the rapid advance of the wire should be specified above a certain limit. There is no need to generate an alarm according to the time of the door switch, so you do not need to install the door magnetic wire.
