User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 7 – Contactless EMV Level 2 transaction messages 2015-04-20
Page153
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Overall Contactless EMV Level 2 transaction flow reference
PIN pad provide one complete EMV Level 2 transaction with online or offline approval by various command
flow. To force PIN pad to leave this command flow, you can either press the [CANCEL] key or send one T6C
command to PIN pad.
Ref. 1 Packet command flow for transaction with offline approval
HOST Direction PIN pad
T61 (Start Transaction)


T62 (Start Transaction Response)
[Result] = ‘Y1’ or ‘Z1’
T65 (Get online data from PIN pad)


T66 (Online authorization data response)
T63 (Get Transaction Result’s Data)


T64 (Get Transaction Result’s Data
Response)