How many ways does the POS machine connect?

POS machine common sense connection

When the transaction data generated by the bank card after being swiped by the POS machine is transmitted to the background, the cardholder will receive the card card information. The POS machine will have three forms to transfer the card data to the UnionPay organization due to the different connection methods, and generate data reception, POS machine ticketing, and the transaction is successful. The following is the data transfer process generated by three different networking methods.

telephone line

When the bank card data is generated on the pos machine, the data will be transmitted to the UnionPay institution by dialing the phone through the dialing function of the phone. After the UnionPay receives the data by connecting the phone, the background running system automatically extracts the data, and then extracts the data. The information is notified by telephone to the pos machine that the background transaction is successful. The POS machine receives the success data of the background transaction by connecting the phone, and the POS machine successfully sends the data after the receipt of the data (pos small ticket). Customers from the card to the order is about 60 seconds.

When the two parties communicate by dialing the telephone, if either party is busy or the line is unreachable, the data will be broken. At this time, the pos machine will not print the pos purchase order (pos small ticket), and the transaction will not be successful. The telephone line connection method is that the POS early use and the UnionPay connection channel are rarely used, and the transaction is unsuccessful because the card is slow. And every time you swipe your card, you will be charged for the phone.

phone card

When the bank card data is generated on the pos machine, the data is transmitted as a band signal to the nearest signal receiving tower (Unicom, Mobile) through the wireless signal function of the calling card. After receiving the card data, the tower sends the data to the UnionPay organization in a file package. After receiving the data packet, the UnionPay organization automatically opens the generated card data. The transaction is successful as long as the tower receives the band signal during the entire data transfer. (This process is similar to the function of using a mobile phone to transmit chat or data through a communication software.) The card is printed for about 30 seconds.

When the card data is searched for the nearest tower in the signal band mode, the signal band is unstable due to the closed space or the large traffic volume, so that the card data cannot be properly transmitted to the nearest signal receiving tower. If this happens, the transaction will not be successful. The method of connecting the calling card is often used to facilitate the customer to collect the money at the door or the customer is used for the fixed point collection, which is not suitable for the closed place or the place where the traffic is large. Such as offices, financial offices, etc. or shopping malls, hospitals. In this way, the minimum monthly consumption of the calling card is about 5~10 yuan.

Network cable

When the bank card data is generated on the pos machine, it will be transmitted to the UnionPay UnionPay through the network in the form of a data packet to automatically open the generated card data after receiving the data packet. The POS machine successfully swiped the card (this process is similar to the computer via network data transfer). The card is printed for about 3 seconds. Network connection has been more prevalent in the past two years. Because the network connection is relatively stable, there are very few cases where transaction failure occurs, and the situation of swiping the card is quick to reduce the queue payment. Generally applicable to offices, financial offices, etc. where there is a network. Large commercial supermarkets, hospital fees and other places reduce the pressure on queuing.

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