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Access keyboards ATB 420/421 Multi-Function Keyboard Product Specification and Service Guide
00110010
The <EOB> (End of Block) marker is always <CR>, ( 00DH).
The <BID> (Block identifier) is defined separately for each device type.
BID for MSR documents:
BID (binary) bits 7-4
0001 – Track 1
0010 – Track 2
Etc
BID for Bar Code Scanner read documents:
The BID identifier is not used for OCR data. The DOC is 030H, and EOB is always<CR>.
5.7
Unformatted Data Output
For units with firmware that is 'unformatted' the data output follows as:
<STX> .....up to 1024 bytes of data..<ETX><CR>
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BID (binary) bits 3-0
0001 – Block 1
0010 – Block 2
Etc
BID (Hex)
Bar Code Type
31
Interleaved 2 of 5
32
Industrial 2 of 5 &
IATA 2 of 5
33
Code 39
35
Code 128
36
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Page 25 of 37
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