How to choose access control card reader？
Access control card reader purchase guidance and attention Access control card reader is the most important parts of the access system and the key equipment of signal transmission in access systems. If we regard access system as a human, the access control card reader is the eye, which determines the reliability of the whole systems. If there are any problems with a card reader, even though the controller and electric lock performed well, the door can not be opened, which will affect the acceptance and use of the project. 1, Purchase Wiegand 26 access control card reader in conformity with international standards The international standard protocol for RF card reader is Wiegand 26bit, a part of card readers use 485 or ABA or other bit digit format. We suggest using the Wiegand26 card reader. such as Indala HID both complied with the agreement, If we use non-standard interface protocol, there will be some compatibility problems for system upgrading and maintaining. It is