ID TECH SREDKey 2 Integration Manual
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The format of the fields ADR and ZIP is:
1-byte field identifier
‘1’—ADR; ‘0’—ZIP
Field 13 LRC is a calculated track 2 longitudinal redundancy check from ';' to '?'
The LRC is calculated on the data before conversion to ASCII to be encoded on a card, so the keyed-in
data can be linked to the card data.
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