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Pacific Security Network News ]
Now, no matter which work unit is in, you will see that an attendance device will be placed in the entrance hall of his door. Do you know the wiring standards for the access control attendance system? This article is a small series for everyone to explain in detail. The establishment of this attendance machine can not only improve the staff's consciousness, but also effectively prevent the occurrence of absenteeism. Then the next small series will explain to everyone, about the access control attendance system wiring standards!
First of all, let's talk about the attendance, the attendance of his card reader to the controller's wiring standard. First, you must set the standard card reading distance, which should be specified within a certain range. Among them, the id card reader has a slightly longer reading distance, and the ic card reading distance is longer. To be a little shorter, if you are using a keychain type proximity card, the reader distance will be shorter, and the card reading method is better to use the card to face the card naturally, and the card from the side The quick-cut method of reading the card first suggests that you do not use this method, because it is likely to be worn over time to avoid wear and tear, so that the way of swiping may be unsuccessful.
We generally put the card reader on the metal surface of the attendance machine. Because it is a special product, the metal device will absorb the signal of the card reader, whether it is in front or behind. If the metal surface of the attendance machine is large, it will affect the card reading function, or the card reading distance will be too far, and the card reading function will be attenuated. Because if the distance between two readers is too close, it will affect the function of the card reader. If the two readers are too close, then our card reading function may be out of order, affecting the normal card reading function.
Next, I will tell you about the wiring standard of the electronic lock of the attendance machine to the controller. The monthly attendance device has an electronic lock, and the working current is relatively large. Therefore, the electromagnetic lock has a certain distance to the controller, and if the current is too large, the battery will be said to be able to work sometimes, and a stagnant condition will occur. Then we are arranging, the line from the electronic lock to the controller is, if the length of the wire is less than 50 meters, it needs to supplement one power line, which can produce the effect of parallel power supply, and if the scene is more than 100 meters, then we Try to move the controller to a position close to the electronics to shorten the wiring distance.
Next is the wiring standard for the door magnet to the controller. In this case, Xiaobian is here, I suggest you try to use the wire of two chips, and the rapid advancement of the wire should be set above a certain limit. If you don't need it, always know the switch status of the door, or There is no need to generate an alarm based on the time of the door switch, then you do not need to add a door magnet.
The above is the small cabling about the wiring standard of the attendance system. Although we see it outside as a simple metal device, there are many lines behind him. If it is properly arranged, it will not only save costs. At the same time, let the new system run better, so the wiring problem is also a thing worth learning.
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