Appendix 7 Preparing Connecting Cables For Bar Code Readers - Omron NS7 Series Setup Manual

Appendix 7
Refer to the following information when preparing the connecting cables for connecting the
V520-RH21-6 Bar Code Reader.
· Connector Pin Arrangement
Pin
number
1
2
2
5 4
8 3
3 1
4
7
6
5
6
Connector pin
7
arrangement at
8
computer
· Wiring Method
RS-232C
interface
When connecting to the 5-V output of the PT's serial port, use a cable length of less than
2 m. If the cable is 2 m or longer, connect pins 7 and 8 of the Bar Code Reader to an ex-
ternal power supply.

Appendix 7 Preparing Connecting Cables for Bar Code Readers

Preparing Connecting Cables for Bar
Code Readers
Signal name
Send data
Receive data
Request to send
Clear to send
Not connected.
Data terminal ready
0 V
Power supply (Vcc)
PT
Signal Pin No.
Abbreviation
V520-RH21-6
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
ER (DTR)
SG
+5 V
V520-RH21-6
Signal Pin No.
Signal direction
PT
A-23