This part of the standard specifies the message interface used for online transactions between institutions and exchange centers, including the structure, format and message fields of online transaction messages. This part of the standard applies to all exchange centers, acceptors, card issuers and other institutions that conduct bank card inter-bank transactions.
JR/T 0055.2-2009 history
2009JR/T 0055.2-2009 Technical specifications on bankcard interoperability.Part 2:Message interface74