88 Vuquest 3320g User Guide
External Trigger Schematic
External Output
External Illumination Control
The External Illumination Control allows the third party device to use external illu-
mination, supplemental to the illumination from the scanner. If the illumination
will be provided by the third party device, scan the External Illumination Control On
bar code. Default = External Illumination Control Off.
Fairchild
NC7SZ 125L6X
Tri-State Buffer
CMOS Input Level
10K
Resistor
1K
Resistor
+3.3V Scanner
Scanner
Controller
Please see External
Trigger Parameters
for voltage levels
Pin 14
3320 Scanner
Host/Register
Data Connector
Pin 6
Customer Device
Power Link
(Not on all cables)
+3.3V to +5.0V
Controller
Standard Trigger Input Connection
Fairchild
NC7SZ 125L6X
Tri-State Buffer
CMOS Input Level
10K
Resistor
1K
Resistor
+3.3V Scanner
Scanner
Controller
Please see External
Trigger Parameters
for voltage levels
Pin 14
3320 Scanner
Host/Register
Data Connector
Pin 6
Customer Device
Power Link
(Not on all cables)
Customer
VCC
Controller
Example of Trigger Input Connection Using an Opto-Isolator
+5.2V
AC
Adapter
N.C.
+5.2V Scanner Power
+5.2V
Push-pull
logic gate
or similar
type driver.
Push-pull
logic gate
or similar
type driver.
Opto-Isolator
Scanner Cable with
External Trigger and
Lamp Signals
Scanner Cable with
External Trigger and
Lamp Signals
Note: All connections for power and ground and communication not
shown for clarity. Additional details of the user connector can be
found in the 3320 Vuquest User’s Guide.
Green
Black
Green
Black
Customer
Ground
Customer
Ground
Customer
Ground
+5.2V
AC
Adapter
+5.2V Scanner Power
Pin 10
Pin 10
+5.2V
GND
GND
User Connector (15 pin
HD-22 pin size).
User Connector (15 pin
HD-22 pin size).
Note: All connections for power and ground and communication not
shown for clarity. Additional details of the user connector can be
found in the 3320 Vuquest User’s Guide.
* External Illumination Control
Off
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