In modern society, swipe cards have become very popular, and the application of the POS system (PointOfSalesSystem) is very common, and it can be seen in shopping malls, restaurants, hotels, hospitals and other places.
POS (PointofSale) is the English abbreviation of "point-of-sale terminal equipment". It can be installed in the special merchants of credit cards and the network of acceptance points and computers to realize the automatic transfer of electronic funds. It has support for consumption, pre-authorization and balance. Features such as query and transfer are safe, fast and reliable to use.
Part of the POS
Host part
The host is used to collect bank card magnetic stripe/IC chip data information, and transmit and receive data information with the acquirer or UnionPay Center to process various transactions. The main part includes an operation keyboard, a liquid crystal display panel, a card slot/card reader, and a communication jack, wherein:
The operation keyboard is the main operation area of ​​the cashier when accepting the bank card;
The liquid crystal display panel is used to display POS operation information;
The card slot is used to read the magnetic stripe card information, and the card reader is used to read the IC card information. According to the different functions of the POS, the card reader is an optional configuration;
The communication jack is used to connect external devices or communication lines.
2. Password keyboard
The part used to determine the transaction amount and password for the cardholder during the transaction, including the display screen and the numeric keypad area. Some new PIN pads are also equipped with a card slot/card reader.
3. Power adapter
Also known as a transformer, used to convert 220 volts of utility power to DC power used by POS components or to charge POS batteries. The power adapter is available in both internal and external versions.
4. Print section
Print the parts of the purchase order after the transaction is completed. At present, there are mainly two types of printing methods, needle-type and thermal.
The above four parts form a completed system; different POS products have different design styles, some POS host parts and password keyboards together; some POS host parts and print parts together; some POS are host parts, password keyboard, printing Part of the three-in-one all-in-one, wireless POS and even four parts in one.
POS communication method
1. Wired communication method
Connect to the fixed telephone network through the telephone line, and access the acquiring institution or UnionPay Center by means of telephone dialing communication, which is called wired communication.
2. Wireless communication method
The POS is equipped with a SIM card and is connected to the acquiring structure or UnionPay center by wireless communication, which is called wireless communication.
3. Network communication method
The five types of network lines or wireless transmitting devices form a local area network, and the network routing device is connected to a dedicated communication network, and the network communication mode is connected to the acquiring institution or the UnionPay center, which is called a networking communication mode.
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