What is the product classification of the reader?
Card reader from the interface point of view are: parallel card reader, serial card reader, USB card reader, Ethernet RJ45 card reader, PCMICA card reader and IEEE 1394 card reader.
Card reader from the card reader can be divided into two categories, one is 485 card reader, one is Wiegand reader. Wiegand 26 and 34 agreements, these two protocols are conventional agreements.
, PCMICA card reader is the most important application on the laptop, and IEEE 1394 card reader because the support interface has not yet popular, the application is not very extensive.
USB card reader is currently on the market the most popular card reader, Ethernet RJ45 card reader because of its Ethernet can be used for remote control, gradually attention,
The first two card readers because the interface is slow or inconvenient to install has been basically eliminated.
