One: Do you know why the POS machine has to be signed?
Many users who first contact the POS will see the check-in option. So, in the face of familiar check-in operations, do you know what knowledge is included? Why do I need to sign in? Check-in and settlement is a concept?
(1) Check-in notes
Sometimes by logging in the account number and password, the online check-in is not triggered (that is, the POS machine does not dial the host and jumps directly to the standby interface). This only implements the login of the account. When you make the first online transaction, the POS machine First check in by default, then online transactions. For example, if the POS machine does not sign in, the direct card swipe will be particularly slow or the card will fail, because the POS machine first signs in by default, and then reads the bank card for consumer transactions.
(2) Purpose and steps of sign-in
purpose
Connecting the host proves that the pos device is legal;
Download the latest work key.
step
1. Set a legal work key, bank card center phone number, merchant number, terminal number;
2. Dial-up connection;
3. Return to sign-in success or failure.
(3) Is sign-in and settlement a concept?
Check in
Check-in is to verify the operator's legality. You need to enter the operator number (the teller number) and the password. Some of them only need to input the password. The check-in is completed on the POS machine and belongs to the offline operation.
Settlement
The settlement is to verify the legality of the POS machine. It needs to communicate with the background. When the POS machine signs in, there will be a prompt to receive the data. When the check-in is received, a MAC (message check code) will be sent in the background, and the subsequent online operations will be performed. Send this MAC to ensure that the transaction is the POS machine that was previously checked in. The POS machine is checked in to be online.
The settlement function is used to send and reconcile transactions. If the consumption is offline, then the transaction data is kept in the POS machine, and the transaction will be uploaded to the server only when the settlement is made. If the settlement is not settled, the money will never arrive; if the consumption is online, The POS will also upload the transaction and check the transaction data. At this time, even if the settlement money is not made, it will arrive. After the settlement is completed, the POS opportunity to do a sign-off operation, and clear the previous transaction data (clear water), then some will be automatically checked according to the different procedures, and some need to manually check in.
Two: three major considerations for the use of POS machines
When a card is said to go away, the life of a modern person is so capricious. As the "golden partner" POS machine for bank cards, the importance of the business is self-evident. The POS machine has gradually penetrated into everyone's life with its fast and convenient use experience. Then, what kind of matters should the POS machine need to pay attention to while using the POS machine while promoting the consumption? Today, I will share it with you. Three major considerations in the process, quickly GET!
Precautions
1 Merchant has the responsibility to carefully check the signature
The purchase order ticket is the most important step in the POS transaction and is used as a voucher for the UnionPay order.
for example
The brothers in the middle of the brothers took the credit card of the brother, and the brother did not know about it. At the end of the month, the brother checked the credit card bill and found that the transaction was not consumed by himself. He would call the bank to check the account and the bank would adjust the transaction. When it comes out, only the merchant provides the small ticket signed by the younger brother, and the amount of the transaction will not be returned by the bank.
However, if the purchase order does not have the cardholder's signature or the consumer's signature, the merchant must definitely compensate the money, so the merchant must carefully check the signature on the purchase order, in order not to cause losses to himself.
Precautions
2 merchants are responsible for saving at least 180 days of consumption tickets
According to the regulations, the time for initiating the order can be traced back to 180 days. If a cardholder initiates the order, the Union will not be able to present the ticket when the small ticket is issued, then the transaction will be considered as an untrue transaction.
Precautions
3 need to determine the authenticity of the bank card when swiping the card
When swiping the card, confirm that the number printed on the card is the same as the number on the card. Once you accidentally brush a fake card or a card with a risky transaction, the loss must be borne by the merchant.
Three: POS machine common troubleshooting
problem
1 When the card is swiped, the connection timeout or connection failure is displayed. What should I do?
Restart the POS machine, and then check in again to see if it can be signed successfully. If it can be signed successfully, then make a transaction; if it is timed out or failed, check whether the SIM card in the mobile machine or the fixed phone of the fixed machine is in arrears.
problem
2 The credit card transaction is displayed successfully. How to deal with the unprinted card?
(1) Check if the printing paper has been used up, try another volume of new printing paper;
(2) Determine whether the printer is bad, try to reprint the last stroke; if none of the above is true, ask the customer to brush another stroke.
problem
3 The card transaction system prompts the transaction to fail. How does the customer receive the debit memo?
Such transactions are generally failed transactions and are not subject to SMS alerts; all transactions are subject to the printing of POS documents. If the POS document is not printed, the customer is required to brush another stroke. If the machine prompts “Chong Zheng Success†when the second stroke is made, it proves that the first transaction is returned to the cardholder card within a short time.
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