DS2200
DATALOGIC
8 - Installation
7
SGND
SGND
TXD
RXAUX
3
RXD
TXAUX
2
USER INTERFACE
DS2200
Figure 2.7 - RS232 auxiliary interface connections
2.3.4 Inputs
The inputs available on the connector supplied with the scanner are indicated
below:
Pin
Name
Function
19
EXT TRIG-
External Trigger (input -)
22
I/O REF
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 I/O REF.
This input was designed to be driven by an NPN type command. The
connections are indicated in the following diagram:
Signal
EXT TRIG-
19
VS
9/13
22
I/O REF
Ground
EXTERNAL TRIGGER
DS2200
V
+ 5V
47K
Figure 2.8 - External Trigger Input command
This input can be driven by an independently powered source, but the signal
on EXT TRIG- must not exceed 9 Vdc.
Summary of Contents for DS2200 SH2348
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