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POS Entry Mode Decoder
Decode the ISO 8583 DE22 POS entry mode (and EMV tag 9F39) — how the PAN was captured (chip, contactless, magstripe, manual, fallback) and the terminal's PIN entry capability.
Follows ISO 8583:1987 DE 22 · Visa Field 22 · Mastercard DE 22PAN entry mode + PIN entry capability·verified Oct 2026· double-checked Oct 2026— checked against processor-published Visa and Mastercard tables; 06 and PIN digits 3 and 8 come from processor tables only
PAN entry mode (first 2 digits)
PIN entry capability (3rd digit)
0PIN entry capability unknown
1Terminal can accept PIN
2Terminal cannot accept PIN
3mPOS software-based PIN entry (PIN on a commercial off-the-shelf device) — Mastercard (as listed in processor tables)
8Terminal can accept PIN but the PIN pad is not working (as listed in processor tables)
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