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12
V550-A20 Operation Manual
Section
3-
12
Connecting Your V550-A20 To An External Device
Parallel Output Connections
The following diagrams show the proper connections that you need
to ensure that the outputs function properly.
V550-A20
15
6
1
1
GND
OUT 0
4
Load
+
-
+
V550-A20
15
6
1
1
GND
OUT 1
5
Load
+
-
+
Output Connections
The table below defines some basic terminology. The drawing below
shows the schematic of the outputs circuitry:
Model 20
15
6
1
4
5
2 TTL
Outputs
(Optional CTS)
Pins
OUT 0
OUT 1/CTS
10K
10K
820 OHM
1
2
3
820 OHM
OUT 1
OUT 0
+5V
3 to 7 KOHM
RS232
IC
The V550-A20 Output Circuitry
For true TTL compatible
output from pin 5, an
external 750 OHM
pullup resistor is
required between pin 5
and pin 14.
V550-A20
+5V
Summary of Contents for V550-A20
Page 1: ...i V550 A20 Operation Manual V550 A20 Bar Code Reader Operation Manual Cat No Q01BAZ2...
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Page 26: ...12 V550 A20 Operation Manual Section 2 12 What to Do After Receiving the V550 A20...
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Page 66: ...18 V550 A20 Operation Manual Section 5 18 Appendices...