User's Manual

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Data Preamble Data Transmitted
123 XYZ XYZ123
12345678 ~3XYZ XYZ45678
12345678 ~9 12345678
12345678901 ~A 1
123456 ~5 6
Preamble trims leading characters
• Using the Bar Code ID feature and the Preamble, you can trim data
selectively, trimming characters only on the bar code type specified.
To use selective trimming, enter:
~bx
where b is the Bar Code ID character (see the Code 128 setup
parameter) and x is the number of characters to trim from the front of
the data. For example, ~b2~c1 says “trim 2 characters from Code 39
data and 1 character from UPC-A data”. Remember that the
Preamble trims leading data.
• Lastly, the Preamble can be used to check a minimum/maximum data
length for bar code data entered. To check for bar code length in the
Preamble enter:
|nnmm
where | is ASCII 124, nn is the two-digit minimum and mm is the two-
digit maximum. |0210 would check for a minimum of 2 characters
and a maximum of 10. If you try to scan a bar code outside the
minimum or maximum lengths, no decode will result. Entering data by
keypad is not affected.
Postamble
Postambles are user-defined data that is attached to the end of data (bar code or
keyed) that is transmitted to the host by the RF Terminal. For example, if you
set a Postamble of @@ and scanned bar code data of 12345, 12345@@ would
be transmitted to the host.
• By default, the RF Terminal has no Postambles configured. Postambles can
contain up to 15 characters scanned from the bar coded FULL ASCII Menu.
To set a Postamble:
1. Scan the Postamble bar code or select Postamble from the
keypad menu.
2. Scan the desired characters (up to 15) from the FULL ASCII
Menu.
Other