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Qn. on payload in ZVT protocol

http://www.terminalhersteller.de/Download/PA00P016_03_en.pdf

Hi All, I'm implementing a driver for the ZVT protocol, using a simple state machine. To receive a message it parses the received bytes until it gets an ETX, then reads the next 2 bytes as the checksum. Is it true that the contained APDU will never contain an ETX as a data byte (if so, I'll need to be more clever about looking for the end of the packet).

TY, Fred

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