User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 11 – ICC / SAM / Magnetic stripe card manipulating messages 2015-04-20
Page268
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message flow:
HOST Direction PP791
Message I08


<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)

Communication with card.
Message I09 or I0F
<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)