Description of the function

In a face-to-face environment a merchant is given access to a number of functions:

 Sales :            In sales transaction the cardholder can request the transfer of money from the cardholder’s account to the merchant’s account. This transaction is authorised by the acquiring systems according to the rules of the acquirer. The cardholder confirms his identity by his signature. Data are captured electronically.

Authorisation :  The merchant will check if a cardholder is in a position to an ulterior request for the transfer of money from the cardholder’s account to the merchant’s account. This transaction is authorised by the acquiring systems according to the rules of acquirer.  In case of positive of authorisation the transaction amount is reserved by the acquirer and a transaction confirmation is required (sales transaction, paper procedure or any other appropriate method)

Reversals:        A merchant, under given circumstances, can request a sales or authorisation to be cancelled. This reversal is authorised by the acquiring  systems according to the rules of acquirer.

Statements:      A merchant can request a statement of the amounts acquired since the last cut-over by the acquirer or since his last cut-over instruction

Transactions are initiated either by reading the encoded ISO-2 track of a card, or by entering the card number manually, according to the rules set by the acquirer

POS terminals in a merchant environment – online

The transactions can only be processed using an on-line connection to the acquiring host systems.

The merchant’s terminal accesses the acquiring systems over the Public Switched Telephone Network, the ISDN network or BANKNET-TCP/IP using a proprietary protocol.

POS terminals in a merchant environment – semi-online

According to predetermined conditions, the terminal can authorise a transaction. For other transaction, an on-line connection to the acquiring host systems is required.

Files are exchanged with transaction, black-list and parameter data.

The merchant’s terminal accesses the acquiring systems over the Public Switched Telephone Network, the ISDN network or BANKNET-TCP/IP using a proprietary protocol.

Unattended transactions

Under precise circumstances defined by the acquirer a terminal can independently decide to accept credit card transactions (sales).  Transactions are initiated by reading the encoded ISO-2 track of a card. Files are exchanged with transaction, black-list and parameter data.

Mail Order / Telephone Order payments

The certification for Mail Order / Telephone Order (MO/TO) payments is under preparation.

 Maestro Transactions with PIN Verification

Description of the function

In a Maestro with PIN Verification payment transaction the cardholder can request the transfer of money from the cardholder’s account to the merchant’s account. This transaction is authorised by the CSM Acquiring systems according to the rules of Maestro card scheme. The cardholder confirms his identity by his Personal Identification Number. Every card has an encoded ISO-2 track. This track identifies the card holder.

POS terminals in a merchant environment

Devices in a public POS environment are equipped with a secure pinpad and a CSM.

The merchant’s terminal accesses the acquiring systems over the Public Switched Telephone Network, the ISDN network or BANKNET-TCP/IP using a proprietary protocol.

Electronic Payment Certification Institute © 2012