Datalogic FireScan D141, Quick Reference

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ELECTRICAL CONNECTIONS
The FireScan™ D141 scanner can be used with CAB 397
(coiled cable and 9-pin male connector) for direct connection to
the DATAPLUS and DLD series decoders.
CAB 397
1 - Not connected 5 - TRIGGER
2 - SCAN 6 - BEEPER/LED
3 - Not connected 7 - VIDEO
6 7 8 9
1 2 3
4 5
4 - GND 8 – LASER ON
9 - +VCC
9-pin male connector
The FireScan™ D141 scanner can be used with CAB 396
(coiled cable and 8-pin modular connector) for direct
connection to PSC Inc. flat bed scanners.
CAB 396
1 - TRIGGER 5 - BEEPER/LED
2 – LASER ON 6 - Not connected
3 - Not connected 7 - +VCC
8
1
4 - VIDEO 8 - GND
8-pin modular connector
A definition of the terms used to identify the pins is as follows:
SCAN This scanner “open collector” output signal is
used to synchronize the decoding logic with
the scanner. Each transition of this signal
from low-to-high or high-to-low corresponds
to the start of a scan. The signal is a TTL
level 57 ms period square wave (see the
following figure Video and Scan signals).
GND Supply ground and signal reference.
TRIGGER This output is connected to GND when the
trigger is pressed and is left floating when the
trigger is released.
BEEPER/LED This scanner input drives the green decoding
LED, and the beeper in the scanner. The
LED turns on when a positive current is
applied to the pin. The beeper sound is
obtained pulsating this current at a frequency
of about 2 kHz. The maximum voltage that
can be applied to this input is 5 Vdc.
VIDEO This “open collector” scanner output is
electrically identical to the barcode. It
supplies a series of pulses the length of
which are proportional to the width of the
elements within the barcode read. A low
output level corresponds to a bar. The
frequency of the pulses depends on the
density of the code, the distance from code
and the programmed output scan frequency
(see the following figure Video and Scan
signals).
LASER ON A positive voltage between 4.75 and 5 Vdc is
applied to this input by the decoder when the
decoding logic senses the trigger is pressed;
this causes the laser to start scanning and
the red LED to turn on.
+VCC This input must be connected to the positive
pin of the supply voltage (4.75 - 14 Vdc).
When the LASER ON pin is positive, all the
current necessary to power the scanner flows
tVCC.
Video and Scan Signals
CODE
VIDEO
SCAN