Omron NT-series Programmable Terminal V022-E3-1 - Manual (Page 283)

1 14
25 13
1 6
9
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Appendix E

Wiring Connections
The NT600S does not use pin 4 (RS) or pin 5 (CS). Short the RS and CS pins of the PC connector together (see

in the figure).
Connect the cable shielding wire to the connector cover and pin 1 at both the NT600S and CPU ends of the cable.
1
2
3
4
5
6
7
8
9
Pin
number Abbrevi-
atioon
FG
SD
RD
RS
CS
+5V
--
--
SG
RS-232C
interface
Shielding
wire
NT600S PC CPU
RS-232C
interface
Pin
number Abbrevi-
atioon
1
2
3
4
5
6
7
--
--
FG
SD
RD
RS
CS
--
SG
--
--
9-pin connector

Connecting an NT600S to a CVM1/CV-Series Host Link Unit

CVM1/CV-Series Host Link Unit Connector Specifications

Applicable host link unit: CV500-LK201

Electrical characteristics: Complies with EIA RS-232C

Signal direction: Signal input and output is relative to the PC.
Communication Port 1 (25-pin Connector)
Connector Pin
Signal Name Abbreviation
Signal Direction
Connector Pin
No.
Signal Name Abbreviation
Input Output
Connector cover Frame ground FG -- --
1 Frame ground FG -- --
2 Send data SD (TXD) 
3 Receive data RD (RXD) 
4 Request to send RS (RTS) 
5 Clear to send CS (CTS) 
7 Signal ground SG (GND) -- --
8 Carrier detected CD (DCD)

14 Optical connector +5V +5V

20 Data terminal ready ER (DTR)

Communication Port 2 (9-pin Connector)
Connector
Signal Name Abbreviation
Signal Direction
Connector
Pin No.
Signal Name Abbreviation
Input Output
Connector cover Frame ground FG -- --
2 Send data SD (TXD)

3 Receive data RD (RXD)

4 Request to send RS (RTS)

5 Clear to send CS (CTS) 
9 Signal ground SG (GND) -- --