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1 |
Interchange is a test |
Indicates that the interchange is a test. |
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2 |
Syntax only test |
Test only syntax of structure. |
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3 |
Echo request |
To be returned without change, except for this data element to have the value 4. |
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4 |
Echo response |
Returned without change except for this data element changing from 3 to 4. |
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