Datalogic DS2400N, Справочное руководство

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INSTALLATION
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3.3.5 Inputs
The inputs available on the connector supplied with the scanner are the pins relative
to the External Trigger and generic input, as indicated below:
Pin Name Function
18 EXT TRIG A external trigger A
19 EXT TRIG B external trigger B
10 IN2 - Input 2 -
25 GND Power ground/IN2 reference
The External Trigger input is used in the On-Line operating Mode and tells the
scanner to scan for a code. The active state of this input is selected in software.
Refer to the Genius™ Help On Line.
The yellow Trigger LED (Figure A, 6) is on when the External Trigger forces a current
flow through the EXT TRIGA and EXT TRIGB pins.
This input is optocoupled and can be driven by both an NPN and PNP type
command. The connections are indicated in the following diagrams:
EXTERNAL TRIGGER INPUT NPN MEP-543
MEP-543 Connector
DS2400N
18
19
VS
9
25
GND
EXT TRIGA
EXT TRIGB
4 3
2 1
(brown)
(white)
(blue)
V
CC
~
~
+ -
Figure 27 - External Trigger command using NPN MEP-543 Photocell
EXTERNAL TRIGGER INPUT NPN
EXTERNAL TRIGGER DS2400N
Signal
18
19
VS
9
25
GND
Ground
V
EXT TRIGA
EXT TRIGB
V
CC
~
~
+ -
Figure 28 - External Trigger NPN using DS2100 power
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