Omron NT31 Operation Manuals page 102

Connecting to the RS-232C Port at the Host
1
13
[Serial port A]
6
RS-232C
interface
9
5
* For units that have a CTS setting selector switch, RS and CS do not have to be
shorted if this switch is set to "0V".
[Serial port B]
1 14
RS-232C/
422A/485
interface
25
* For units that have a CTS setting selector switch, RS and CS do not have to be
shorted if this switch is set to "0V".
NT31/NT31C
Pin
Abbreviation Shielding wire
number
Connector
FG
hood
1
SD
2
RD
3
RS
4
CS
5
+5V
6
7
8
5G 9
(9-pin type)
NT31/NT31C
Pin
Shielding wire
Abbreviation
number
Connector
FG
hood
–
1
SD 2
RD
3
RS
4
CS
5
–
6
SG
7
–
8
TRM
9
10
RDB (+)
SDB (+) 11
–
12
–
13
– 14
SDA (–)
15
RDA (–)
16
–
– –
23
RSB (+)
24
RSA (–)
– 25
(25-pin type)
PC (host link unit)
Pin
Abbreviation
number
1
FG
2
SD
3 RD
4
RS
RS-232C
interface
5
CS
*
6
–
7
5G
8 –
–
–
– –
–
–
–
ER
(25-pin type)
PC (host link unit)
Pin
Abbreviation
number
1 FG
2
SD
RD
3
RS-232C
4 RS
interface
CS
5
*
–
6
SG
7
8 –
– –
–
–
–
–
–
–
20
ER
(25-pin type)
Section 4-1
1 14
13 25
1 14
13 25
91