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Connections
6-3
Connections
Connecting to a Bar Code
Reader via RS-232C
The connection examples in this section show only the basic connection dia-
grams. We recommend that appropriate noise countermeasures be taken in
actual applications, including the use of shielded twisted-pair cables. Refer to
2-3 Wiring for actual wiring methods.
The following diagram shows the connections between an OMRON V500-
series Bar Code Reader and the RS-232C port on the Serial Communications
Board.
Serial Communications Board
(D-sub, 9-pin female connector)
Signal
Pin
Serial Communications Board
100 VAC
Note If the external device has a FG terminal, connect the shield wire to ground at
both the external device and the Serial Communications Board to prevent
faulty operation.
V520-RH21-6
Bar Code Reader
V509-W012 Cable
V509-W012
Cable
5-V external
power supply
(e.g., 82S-0305)
Section 6-3
Pin
Signal
V520-RH21-6
Bar Code Reader
103
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