DS1100
2
2.3.4 Inputs
The inputs available on the connector are indicated below:
Pin Name
Function
18
IN1 -
input 1 -
19
EXT TRIG-
external trigger -
12, 22
GND
I/O reference
The EXT TRIG input is used to connect the external trigger which tells the scanner to
scan for a code. The active state of this input is selected in software. Refer to the
WinHost Help On Line.
The yellow LED (Figure A, 5) is on when EXT TRIG- is shorted to GND.
This input is driven by an NPN type command. The connections are indicated in the
following diagram:
13/9
19
VS 5 Vdc
EXT TRIG -
12/22
GND
EXTERNAL TRIGGER
Ground
V
DS1100
Signal
+ 5 V
47 K
Figure 10 - External Trigger Input Command (5 Vdc Photocell)
13/9
19
VS 5 Vdc
EXT TRIG -
12/22
GND
EXTERNAL TRIGGER
Ground
V
DS1100
Signal
+ 5 V
47 K
V
max
30 Vdc max
Figure 11 - External Trigger Input Command (Photocell max 30 Vdc)
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