Omron NT20S User Manual

269
Connecting to an RS-232C/RS-422A Converter Unit (1:1)
Appendix I
APPENDIX I
Connecting to an RS-232C/RS-422A Converter Unit (1:1)
By using an RS-232C/RS-422A converter unit (NT-AL001), RS-232C can be converted to RS-422A, allowing long-
distance communication of up to 500 m.
Connection Method
OMRON PC
RS-232C cable
(max. 2 m)
RS-232C/RS-422A
converter unit,
type NT-AL001
RS-422A cable
(max. 500 m)
RS-232C/RS-422A
converter unit,
type NT-AL001
RS-232C cable
(max. 2 m)
NT20S
Wiring
S Wiring of RS-232C cable
2
3
4
5
6
9
Pin No.Abbrev.
SD
RD
RS
CS
+5V
SG
RS-232C
interface
Shielding
wire
PT or PC NT-AL001
RS-232C
interface
Pin No. Abbrev.
2
3
4
5
6
9
SD
RD
RS
CS
+5V
SG
Connector
cover
Connector
cover
The pin numbers are the numbers at the NT20S.
For the pin numbers at the PC, refer to the manual
for the PC used.
Only connected at PC

Omron NT20S Specifications

General

Brand	Omron
Model	NT20S
Category	Touch terminals
Language	English