Specifications
This help topic describes the specific characteristics of the bar codes per type.
| Barcode type | Character set | Length | Check digits |
|---|---|---|---|
| Code 128 | ASCII (128 characters) | variable | Mod 103 |
| Code 39 | [A-Z]; [0-9]; [ - . $ / + % ] | variable (avg. up to 20 chars) | optional (Mod. 43) |
| EAN-13 | numeric [0..9] | 7 usable digits | 1 check digit |
| EAN-8 | numeric [0..9] | 12 digits | 1 check digit |
| Postnet | numeric [0..9] | variable | 1 check digit |
| UPC-A | numeric [0..9] | 12 digits | 1 check digit |
| UPC-E | numeric [0..9] | 7 digits | 1 check digit |