Client-to-server data stream

In implicit mode, the client sends the following data stream:

llzz transaction-request message (TRM) llzz application data segment 1 llzz application data segment 2 (optional) llzz ... llzz application data segment n (optional) 04zz end-of-message segment

WHERE:
ll: The length in bytes of this data segment in binary.
zz: Reserved; must be set to binary.
transaction-request message (TRM): The initial client request.
application data segment 1 – n: Data to be passed to the server application.
end of message segment: A segment with no data. Therefore, its segment length is 04 (2 for the length field plus 2 for the reserved field.)