User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 13 – JPEG File Operation messages 2015-04-20
Page301
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message J0 JPEG File Table Initialization
Format: <STX>J0<ETX>[LRC]
Request frame (HOST to PIN Pad)
<STX>J0[Status]<ETX>[LRC]
Response frame (PIN Pad to HOST)
Message length: Fixed 5 bytes for request frame and 6 bytes for response frame.
Usage: This message is used to initialize the JPEG file table from terminal.
Message element:
Request frame (HOST to PIN Pad)
Field Length Value and description
<STX> 1 <02>
J0 2 Message ID
<ETX> 1 <03>
[LRC] 1 Checksum
Response frame (PIN Pad to HOST)
Field Length Value and description
<STX> 1 <02>
J0 2 Message ID
[Status] 1 '0': Success.
'1': Failure.
<ETX> 1 <03>
[LRC] 1 Checksum
Message flow:
HOST Direction PIN Pad
Message J0


<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)

Message J0
<ACK> / <NAK> / <EOT>
