Barcode Zapper
3
PC Keyboard Wedge
The
Keyboard Wedge
interface connects between an IBM AT or PS/2
or compatible computer and its keyboard, and power for the scanner
and interface is taken from the computer.
The PC’s keyboard still operates normally, but when a barcode is
scanned, the keyboard is momentarily disabled, and the barcode data is
sent to the computer as if it had been entered from the keyboard. In this
way, all your existing programs are able to accept barcode input
without requiring any modifications.
The
Keyboard Wedge
adaptor cable is available in two forms - for AT
type computers (not old PC or XT types) using large 5-pin DIN
connectors, and for PS/2 type computers using 6-pin mini-DIN
connectors.
To install the
Keyboard Wedge
, first turn off your computer, and
unplug the keyboard from the computer. The cable from the keyboard
should now be plugged into the socket on the adaptor cable, and the
plug on the adaptor cable plugs in to where the keyboard used to be
connected on the computer.
Turn the computer on, and the
Barcode Zapper
will emit a high/low
beep to indicate that it has passed its power-on diagnostic tests.
Wand Emulation
The
Wand Emulation
interface decodes barcodes and converts them to
wand-compatible signals, so that you can easily upgrade your existing
barcode decoder.
The
Wand Emulation
interface uses the Hewlett Packard wand signal
standard, with a high level idle state, high output on black, 30ms
margin time and 50us module time. Other signal levels and timings are
also available - please contact ASP or your dealer with your
requirements. The
Wand Emulation
interface uses a female D9
connector, with wand data on pin 2, ground on pin 7 and +5v on pin 9.
The
Barcode Zapper
is a low power scanner, ideally suited to portable
applications.
