The optional PIP data can be anything that the application
program includes as parameter data when setting up the conversation.
The layout of the PIP variable follows:
- Byte
- Meaning
- 0–1
- Length in binary of the PIP variable, including the length bytes
- 2–3
- General data stream (GDS) identifier (X'12F5')
- 4–n
- Zero
or more PIP subfields, each of which has the following format:
- Byte
- Meaning
- 0–1
- Length in binary of the subfield, including the length bytes
- 2–3
- GDS ID (X'12E2')
- 4–m
- PIP subfield data