KB Article #179991
Where can I find an official PeSIT protocol guide - The GSIT PeSIT guide
Problem
Where can I find an official PeSIT protocol guide
PeSIT reference guide
Transfer CFT, Gateway Interchange, Secure Transport and all products supporting the PeSIT protocol.
Resolution
Attached to that KB you can find both the English and the French version of the PeSIT protocol guide published by the GSIT.