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In the intelligent building construction, electronic access control system not only to enhance the degree of intelligent building, enhance the architectural image grade of the role, but also is an important part of intelligent building security system. The access control system to the building entrance control effect, it has also become an important barrier to building safety precautions.

1, access control system for bus different environmental requirements
Bus architecture of different access control system connected with different needs, a small and medium access control system, and the distance between the little door in the environment, connection mode can adopt RS485 bus. The complex building structures, the scene beyond RS485 bus transmission ability of the distance between the doors, often choose to use building existing TCP/IP network to realize data transmission system.

RS-485 communication
TCP/IP communication
TCP/IP communication with computer network general standard protocols, with international standard, fast transmission speed, good compatibility, HUB access mode and computer network access modes and local area network of the same.

The communication distance: in a small LAN, each level of the communication distance up to 100 meters, can extend the communication distance through the HUB cascade, cross city or even thousands of kilometers away from the network;
Load quantity: no limit theory, HUB can be cascaded;

2, access control systems for different environmental card reader option
For high protection level of the built environment, access control requirements of system adopts "fingerprinting" "pin" or "pure password" means to open the door, the card reader in the selection must select with the card reader keyboard.
For high protection level of the built environment, access control requirements of system adopts "fingerprinting" "pin" or "pure password" means to open the door, the card reader in the selection must select with the card reader keyboard.
And installed in the outdoor scene, and does not require a password function, requires the use of no keyboard card reader.
In addition, according to the use of the card, is usually used to read card frequency 125KHz ID card reader IC card reader and card reading frequency 13.56MHz reader.
To clarify the misunderstanding of access control system to choose from four aspects:
A misunderstanding: the import access controller will be better.
Imports of the controller is good in stability and mature products.

But the price is expensive, but because of the geographical gap, timeliness of the service is not good, and the service cost is high. At the same time, because of the cultural difference, foreign users to access control management needs and requirements and Chinese conditions are different, many functions are not suitable for national conditions and the needs of users Chinese China. Of course, Chinese many access controller manufacturers small scale, weak design capability, the successful application cases, contractors are advised to carefully choose. Misunderstanding two: the more expensive the better or the lower the price the better

Good quality products is the best product.
Good quality products is the best product. Your products may be because his yield is not high, or advertising costs are too high, not necessarily is the product with very high value. Cheaper products, also has the possibility is the manufacturer of one-sided pursuit of low cost, reduce the input protection circuit, or a poor selection and used the chip, so the contractors must keep their eyes open for the performance of the product price to a reasonable evaluation.

Error three: the card reader is wider better compatibility
Some controls claiming to be compatible with various formats of card reader, for example 485 format, ABA format, wiegand3740 format reader, it is not necessary to. Although these formats in the local has certain advantages, but not in line with international standards, for the future upgrading and anti - interference brought trouble. We adhere to the practical, stable, conforms to the standard is the best principle, it is recommended that you only need to comply with the international standard of wiegand26bit card reader can access controller, 90% imported is in line with the standard.

Misunderstanding four: the more powerful features.
Many domestic controller to promote its products how powerful, to exaggerate the function of access control, the access control stability and functional and practical, simple operation is the most important. We propose to extend the function of shielding up strong, to provide customer needs, meet their needs, some clients do not have the function should not be recommended to customers, so that the training cost and maintenance cost reduction, the customer is used also as one wishes.