HL7 (MLLP) Message Wrappers

HL7 (MLLP) Minimal Lower Layer Protocol:

Start Block <SB> is a VT (vertical tab) as ASCII 11.
End Block <EB> is a FS (file separator) as ASCII 28.
Segment Separator <CR> is a CR (carriage return) as ASCII 13.

Messages are prefixed with a <SB> character. Segments are terminated with a <CR>. Messages are terminated with two characters: <EB><CR>.

Here is an example:

<SB>MSH^~\&199809091533ORU^R01856369D2.2<CR>
PID139385000343456<CR>
ORC123112312RAD19980909-0005<CR><EB><CR>