Handheld Omnidirectional Laser Scanner
5
U
SER
’
S
M
ANUAL
Connecting
Power
The scanner requires a minimum of 250mA at 5 VDC power. The interface cable that comes with
the scanner supports both direct power (where the scanner takes power from the host machine)
and external power (that’s what the supplied power adapter is for). A sufficiently robust POS
system can support a scanner successfully without external power; a POS system with a barely
adequate power supply may produce erratic performance (either of the POS system itself, or of the
scanner, or both) when a scanner is attached. Unless you are sure your POS system can candle such
loading, it is recommended that you use the supplied power adapter. When an external adapter is
connected, the scanner does not take power from the host.
The scanner turns on when power is supplied, and turns off when power is removed. There is no
on/off switch on the scanner itself.
Use only an AC/DC power adapter approved for the scanner. Use of other power supplies may
cause damage to the scanner, and void the factory warranty.
Verifying Scanner Operation
Please follow the procedure below to verify scanning operation.
1.
Insert the 10-pin modular plug of the Interface cable into the scanner until a firm
click is heard.
2.
Plug the power adapter into the jack on Interface cable if necessary.
3.
Plug the AC end of the power adapter into an AC outlet, or plug the other end of
cable into host if power adapter is not needed. The scanner powers up, the
buzzer sounds four beeps and the LED indicator glows.
4.
Present a known-good test barcode to the scanner. The scanner should issue a
short beep and the LED should flash red momentarily. [if the scanner is
connected to a keyboard wedge for this test, it should read one barcode, beep,
then remain with a red LED indicating light. This is normal when the keyboard
wedge is not connected to a live host terminal.]
If the scanner does not produce any beeps, or produces the wrong
beeps, or the LED does not light up, remove the power connection and
refer to the section on Troubleshooting.