Omron NT-series Operation Manual page 287

NT-AL001 RS-422A terminal block specifications
Connected terminal block: RS-422A terminal block (M3 screws)
Electrical characteristics: Conform to EIA RS-422A
Signal direction: Signal input and output is relative to the NT-AL001.
Note
Wiring
[For NT600S-ST211(B)-V
NT600S
Abbrev. Pin No.
1
SD 2
RD 3
RS 4
RS-232C
interface
CS 5
+5V
6
-- 7
-- 8
SG
9
(9-pin)
[For NT600S-ST121(B)-V
NT600S
Abbrev. Pin No.
1
SD
2
RD 3
RS 4
RS-232C
interface
5
CS
+5V 6
-- 7
--
8
SG
9
(9-pin)
(*) CSB and CSA are connected when the NT600S requires RS/CS control for the host control method.
Terminal Block Terminal Block
Pin No.
8 Request to send (--)
7 Request to send (+)
6 Receive data (--)
5 Receive data (+)
4 Send data (--)
3 Send data (+)
2 Signal ground
1 Functional ground
The CSB and CSA signals are for special applications.


]
RS-232C
Pin No. Abbrev.
1 FG
2 SD
3
RD
4 RS
CS
5
6 +5V
7
8
SG
9
Shielding (9-pin)
wire


]
RS-232C
Pin No. Abbrev.
1 FG
2 SD
3 RD
4 RS
5 CS
6 +5V
7
+5V
8
(150mA)
SG
9
Shielding (9-pin)
wire
Signal Name Signal Name
NT-AL001
Terminal
Abbrev.
No.
FG 1
2
SG
3
SDB
RS-422A
4
interface SDA
RS-232C
interface
RDB 5
RDA 6
CSB
7
8
CSA
Terminal block
NT-AL001
Terminal
Abbrev.
No.
1
FG
SG 2
SDB 3
RS-422A
4
interface SDA
RS-232C
interface
RDB 5
6
RDA
CSB 7
CSA 8
Terminal block
Appendix E
Signal Direction
Abbreviation Abbreviation
Input
CSA
CSB

RDA

RDB
SDA
SDB
SG (GND) --
FG --
Host
RS-422A
Signal Name
Ground for safety
Signal ground
Receive data (+)
RS-422A
Receive data (--)
interface
Send data (+)
Send data (--)
Request to send (+)
*
Request to send (--)
*
Shielding
wire
Host
RS-422A
Signal Name
Ground for safety
Signal ground
Receive data (+)
RS-422A
Receive data (--) interface
Send data (+)
Send data (--)
Request to send (+)
*
Request to send (--)
*
Shielding
wire
Output




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