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10.2. Level One and Level Two POS Mode Data Output Format
In POS mode, use the special envelope to send out card data, envelope is in the following format:
[Right Shift, Left Shift, Right Ctrl, Left Ctrl,] Read Error, Track x
ID; Track x Error; Track x Data Length; Track x Data; Card Track x LEC
code; Track x data LRC.
Reader will send out card data in Alt mode if its ASCII code less than H'20'.
Byte No.
0
1
2
3
4
5
6
7
8
9
10
10 + Track len -1
10 + Track len
10 + Track len +1
10 + Track len + 2
....
The data format is independent with MSR setting. No Track x data if track x sampling data does not
exist.
OPOS header:
Only HID KB interface has [Right Shift, Left Shift, Right Ctrl, Left Ctrl] under
POS mode.
Read Error:
Read Error 1-byte bits:
Name
Right Shift
Left Shift
Right Ctrl
Left Ctrl
Read error 1
Read error 2
Track x ID
Track x Error
Track x Length
1
Track x Length
2
Track Data (no
extra track ID
for raw data)
...
Card Track x
LRC
Track x LRC
0 x 0D
Track x ID
Repeat Track
SecureMag Encrypted MagStrip Reader User Manual
Page | 30
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