What is the lower layer protocol (LLP) used with HL7?
This is a really simple framing TCP/IP protocol. Each HL7 message is preceded with some special characters which are:
\x0B
and is followed by these special characters:
\x1C\x0D
These are expressed in hexadecimal.
So:
0x0B … MSH…..<hl7 message> … \0x1C\0x0D
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