User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06

Section 6 – Contact EMV Level 2 transaction messages 2015-04-20

Page106

Uniform Industrial Corp. Proprietary and Confidential Total 342 pages

Message T1C Terminal Cancel Transaction

Format: <STX>T1C<ETX>[LRC]

Message length: Fixed 6 bytes

Usage: The message used to cancel the transaction..

Message element:

Field Length Value and description

T1C 3 Message ID

[LRC] 1 Checksum

Message flow:

HOST Direction PIN pad

Message T1C





<ACK> (Good LRC)

<NAK> (Bad LRC)

<EOT> (after 3 NAKs)