VeriFone MX800 Series - Packet M04: Read Permanent Unit Serial Number

IPP MS AND DUKPT COMMUNICATIONS PACKETS
Common Packets
M
X
800 SERIES PROGRAMMERS GUIDE 313
Packet M04: Read
Permanent Unit
Serial Number
This command is used to check the permanent unit serial number.
Request Packet
Format
<SI>M04<SO>{LRC}
Packet M04 Length: • Maximum: 6 characters
• Minimum: 6 characters
Response Packet
Format
<SI>M04[PUSN]<SO>{LRC}
Packet M04 Length: • Maximum: 17 characters
• Minimum: 17 characters
NOTE
This packet is added for IPP8 emulation.
Table 49 Packet M04 Format
Data Element Characteristic Comments
<SI> 1H
Shift In, value: 0Fh
Packet Type 3AN
Value: M04
<SO> 1H
Shift Out, value: 0Eh
{LRC} 1H
Error Check
Table 50 Packet M04 Format
Data Element Characteristic Comments
<SI> 1H
Shift In, value: 0Fh
Packet Type 3AN
Value: M04
Permanent Unit Serial
Number [PUSN]
11AN
Unit Serial Number format:
xxx-xxx-xxx
<SO> 1H
Shift Out, value: 0Eh
{LRC} 1H
Error Check
Table 51 Packet M04 Communication Protocol
Master Device
Transmit
Direction
IPP
<SI>M04<SO>{LRC}
• ACK if LRC okay.
• NAK if LRC incorrect (EOT after 3 NAKs).
<SI>M04[PUSN]<SO>{LRC}