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
Page282
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message Q6 MSR Operation Control
Format: <STX>Q6.[flag]<ETX>[LRC] (request frame)
Message length: 7 bytes.
Usage: This command can be used to set MSR output format.
Message element:
Request fame (HOST to PP791)
Field Length Value and description
<STX> 1 <02>
Q6 2 Message ID
. 1 <2E>, delimiter
[flag] 1 ‘0’: Clear-Text Card Data
‘2’: Clear-Text Card Data with Sentinels.
<ETX> 1 <03>
[LRC] 1 Checksum
Message flow:
HOST Direction PIN pad
Message Q6


<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)

Message Q6 (echo of request frame
when success) or <EOT> (when
format error.)
<ACK> / <NAK> /
<EOT>
