.1
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Example for Checksum Calculation
[STX]1Test[ETX]
Character Value Sum
(hex)
[STX] 02h 00h
‘1’ 31h 31h
‘T’ +54h 85h
‘e’ +65h EAh
‘s’ +73h 15Dh
‘t’ +74h 1D1h
[ETX] +03h 1D4h
= 1D4h
Mod 100h
= D4h
to be sent:
[STX]1Test[ETX]D4[CR][LF]
7.2 Communication Text Content
7.2.1 Record Levels
The following table shows the Standard Record types and levels (see ASTM E 1394-97
Section 5, 'Information Requirements in Clinical Testing')
Level Record Name Identifier
0 Message Header Record H
0 Message Termination Record L
1 Patient Information Record P
2 Test Orders O
3 Result Record R
1...3 Comment Record C
1...3 Manufacturer Information Record M
1 Request Information Record Q
Table 8: Standard Record Types and Levels
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