Access control with non-contact IC card (inductive IC card) card reader is an important part of the access control system, is the key equipment of the access control system signal input, if the access control system is compared to a person, the card reader is like the human eye. It is related to the stability of the entire access control system. If an access control system controller and electric lock are good, if there is a problem with the quality of the card reader, it will also cause the door to not open, affecting the acceptance and use of the project.

Note 1: Is the purchase of domestic card reader or imported card reader?

 The real imported card reader, the technology is more mature, the product repair rate is low, the appearance design is more beautiful and durable. The disadvantage is that the price of the product is expensive, the service is not timely, and the imported induction card of the matching brand must be used, and the imported induction card is also more expensive. Unless the customer specifies the use of an imported brand of card reader, the author recommends the use of domestic card readers, but be sure to choose the domestic quality reputation and service are good manufacturers of card readers. The appearance of the domestic card reader has also made great progress in the past two years, and it is fast keeping up with the international popular styles. The price of imported card readers is 6-10 times that of domestic card readers, and the price of imported cards is 10-20 times that of domestic cards. The core chips of domestic card readers and cards are processed by foreign RF chips, and the country does not have the development and production capacity of chips in this field. It is recommended to use Inddala(Motrola) 605 type card reader and HID 6005 card reader, which is relatively cost-effective.

 Many domestic card readers casually stick a foreign brand that does not exist, mark a country of origin, or there is a false certificate of origin, this kind of hanging sheep head to buy dog meat a lot of things, engineers should pay attention to. Don't spend money, have not bought a good product, cause a lot of trouble.

Note 2: Buy a Wiegand 26 card reader that meets international standards

 The internationally accepted interface protocol standard for RF card readers is wg26bit, and some domestic and Taiwan card readers use ABA magnetic stripe format. Or other bits, the author recommends the use of wg26 card reader, imported card readers such as Indala HID, etc. all comply with the agreement, Whether domestic or imported controllers almost 99% comply with the protocol, if the use of non-standard interface agreement will bring great compatibility problems for the future system upgrade and maintenance, it is not recommended that you purchase a variety of output formats of the card reader, to avoid the use of disorders. A variety of output format card reader is only set by the manufacturer from a commercial perspective such as saving the cost of development and plate making, and it is not really powerful in the sense. Using the wg26 card reader that meets the international standard can bring great convenience to the stability of your system and the upgrade and maintenance of the replacement card reader in the future.

Note 3: Is the ID card reader or IC card reader selected?

 D card reader is the common name of read-only contactless IC card,IC card reader is the general name of readable and writable contactless IC card. The performance ratio and sensing distance of ID card and ID card reader are better than that of IC card and IC card reader. If it is only used for access control and attendance or the parking lot card, it is recommended to use the ID card reader and sensor card. If you need to be compatible with non-quota consumption card, you can only use IC card reader and induction. ID card market is more popular and cost-effective EM card. IC card reader and induction card are recommended to use PHILIPS MIFARE1(M1 for short) Other logic or TITM cards have a low market share and are not recommended.

Note four: Do not judge the quality of domestic card readers from the appearance alone.

 Most domestic card readers use public molds, or copy the appearance of foreign card readers. Mold is common to everyone, who can buy the shell, so even if the same appearance of the card reader may be produced from different manufacturers, service and quality is not the same. The engineer must have a detailed understanding of the card reader, not distinguish from the appearance and price alone. It is recommended that the engineer buy the card reader from the place where the access controller is purchased, and the general access controller manufacturer will either sell or produce a card reader with similar quality standards. So, how to judge the quality of a card reader? The author believes that in order to pursue low cost production, some domestic card readers use analog circuits to replace the RF base station chip, this card reader has a large operating current, easy to crash or be damaged, it is not recommended to choose. It is recommended to use the U2270B imported RF base station chip reader will be better. Of course, it is also necessary to judge the use time and repair rate of the card reader of the manufacturer you previously purchased for more than half a year, as well as the quality standards and reputation of the manufacturer. In addition, the card reader is a long-term use of equipment, the circuit design must have anti-crash circuit protection, which should also be noted.