How do one-machine multi-family pos machines do one-to-one? Is it useful for the amount of the offer?


Although there are many hand brush products, the price is also cheap, some merchants even send it for free, but many friends have not raised the amount for a long time with the brush, and finally found that the brush often jumps frequently, so some friends who need intensive cards still I feel that the fixed merchants of the big pos are more stable. Before the card is swiped, the user knows which merchant they are spending. Unlike the hand brush, which is randomly matched with the merchant, sometimes it is brushed 2000 and comes out of a buns shop, which makes people feel ashamed.

Many friends have such doubts before they handle the big machine. The most frequently asked questions are: How do multiple merchants do one house per yard on one machine?

Everyone knows that there is a SN number on the back of the pos machine. So how can an SN number be bound to 10-20 merchants? Always swiping a card on a machine, will it be monitored by the bank?

Everyone will have these concerns, of course, understand. After all, I want to raise the amount of wool for the big machine. Nobody wants to be blackened by the bank! And now many card friends are used to searching for the question of whether a multi-merchant can raise a card in some forums. Then someone will say that it is very dangerous to swipe the card on one machine, it is not good for the card, and the alarmist words such as hurriedly stop, so The person who said is actually not understanding the POS machine, or some merchants will say this in order to let customers buy more machines.

Both UnionPay and the payment company judge the terminal through the SN. Each different SN number is judged as a machine in the system. When entering the warehouse in the background, each merchant applying for a machine, each merchant corresponding to its own SN number, these SN numbers are unique, because if multiple merchants use the same SN number, in the background of the payment company It is impossible to tie the machine at all, and the program cannot be updated remotely on the machine. Therefore, when users swipe their cards on different merchants of a machine, they display different SN numbers at UnionPay and the payment company. That is, the system will judge the user to swipe the card on different machines.

Here's how to view the SN number of the merchant on the machine:

Select the merchant in the merchant list, enter the card interface, press the OK button, then press F1.

As shown in the figure, the SN of this merchant will be displayed on the screen. After observing, you will find that the SN of each merchant is different.

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