17
Computer Interface
PC Keyboards and USB Attachment
1
PC Keyboard Learned Timing
8
Macintosh ADB Keyboards
A
Scan the number on the Barpad Table corresponding to the type of system you
are using. All PC compatibles and computers using a USB (Wedge Saver)
attachment use setting 1.
PC Keyboard Learned timing does not apply to the Mac or to USB only
computers. The Learned Timing can learn your keyboard timing and save it.
Scan Start Setup, Computer Interface, 8, and then press a key on the computer
keyboard (the reader beeps once – if it doesn’t beep, it didn’t capture the timing
and you will have to use “Data Transmission Timing”). Now scan End Setup
and the timing should be captured by the Base Station into the EEPROM.
If you experience trouble, try the “PC Keyboard Learned Timing" setting of 8;
as a last resort, try the Data Transmission Timing settings, (not applicable to
Mac or USB).
Serial Reader mode settings:
RS-232 ASCII Data Format
3
RS-232 “PC-Terminal Mode” Data Format
4
RS-422 ASCII Data Format
5
RS-232 ASCII is used for almost all serial ports and terminals.
"PC-Terminal Mode" refers to the very rare Concurrent DOS.
RS-422 applies to the RF Bases and is used with RS-422 boards only.
Preamble
A "Preamble" is a user-specified data string transmitted at the beginning of
each bar code. For example, if you specify the preamble @@ and read data of
123456, "@@123456" would be transmitted to your computer. With the 2-
Way LZ2x2-RF Laser, the Preamble applies to the scanner, not the base
station because there may be multiple scanners per base.
The default is no preamble. To select a preamble, scan up to 15 characters from
the "FULL ASCII MENU" on the back of the Reader Setup Menu, and then scan
SET when you're done. To return to the no preamble setting, scan Clear here
instead of scanning SET or any characters from the FULL ASCII MENU.
You can trim 1-15 leading characters from bar code codes by scanning a ~
(tilde -- ASCII 126) followed by a single digit, 1 through F, as part of the
Preamble. (Bar codes that are shorter than the amount-to-trim are transmitted
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