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Output(Data Variable Absolute)
10.2 Level 1 and level 2 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’.