Article · Wikipedia archive · Last revised Jun 10, 2026

Transaction Protocol Data Unit

The Transaction Protocol Data Unit (TPDU) is a packet-based protocol originally designed for financial transaction processing over an X.25 network.

Last revised

Jun 10, 2026

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≈ 1 min

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35 w

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2

Source

The Transaction Protocol Data Unit (TPDU) is a packet-based protocol originally designed for financial transaction processing over an X.25 network.¹²

References

References

TPDU - The Transaction Protocol Data Unit, retrieved 2021-03-26
TPDU Protocol (PDF), retrieved 2019-05-06