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"Payment Systems"

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Screenshot of a mobile phone showing a digital payment screen, illustrating digitalization and payment systems

Merchant & POS

A look at April 23 through the lens of digitalization and payment systems

Today is April 23, the 100th anniversary of the opening of the Grand National Assembly. Taking Children's Day as a starting point, this post looks at digitalization, Generation Z, blockchain, biometric payments and the cashless society from a payment systems perspective.

Illustration representing the Mir payment card scheme

Merchant & POS

2 Turkish Banks Agreed to Accept the Mir Payment System

In Turkey, there are 3 payment schemes we are used to seeing: MasterCard, Visa, and Troy. American Express and Diners Club are also used, though less widely. Russia's Central Bank recently said two Turkish banks are preparing to accept Mir cards.

Diagram showing the PSE (Payment System Environment) directory used for application selection on an EMV chip card

Credit Card

What is PSE (Payment System Environment)?

PSE (Payment System Environment) is a directory on the card named 1PAY.SYS.DDF01 for a contact chip and 2PAY.SYS.DDF01 for a contactless chip. The Candidate List built via PSE is called indirect or implicit Application Selection.

POS terminal used for a card payment transaction

Merchant & POS

What Is a Timeout in Payment Systems?

In the world of payment systems, both the issuer (the cardholder's bank) and the acquirer (the POS/ATM bank) must follow certain rules for card transactions made through a POS terminal or an ATM. Responding to transactions within a certain time is one of these rules.

Diagram of the committees within the BKM system

Payment System Institutions

What are the committees in the BKM system?

BKM (Interbank Card Center) works through several committees: Security, Operations and Technology, Market Development, Business Development, Chargeback Rules and Arbitration, ATM Sharing, plus arbitration committees. This post outlines each one's duties.

Central Bank of the Republic of Turkey and BKM logos

Payment System Institutions

Central Bank Becomes a Partner of BKM

According to the CBRT's official website, the Central Bank of the Republic of Turkey has become the controlling shareholder of the Interbank Card Center (BKM), using the authority granted by Law No. 7192.

UnionPay logo

Payment System Institutions

What is the UnionPay Online Payment System (UPOP)?

UnionPay Online Payments (UPOP) lets merchants in China, New Zealand, Australia and other countries extend their e-commerce stores to accept UnionPay payments. UnionPay supports over 5 billion cards in more than 140 countries.