Posi LAPA 4 State Code
- Uses the same symbol alphabet as RM4SCC.
- Uses Reed-Solomon error correction. It can correct up to 8 erasures or 4 errors.
- LAPA can be read from left-to-right or right-to-left. The direction can be determined by reading the leftmost or the rightmost bar.
- Thanks to its fixed length and error correction, it offers better robustness than RM4SCC.