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4-1SectionConnecting to the RS-232C Port at the Host
81
Serial Port A
1
6
5
9
*
NT31/NT31C
114
13 25
FG
+5V
CS
RS
RD
SD
5G
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
–
–
–
–
FG
5G
CS
RS
RD
SD
ER
–
–
–
–
–
PC (host link unit)
(25-pin type)
(9-pin type)
RS-232C
interface
RS-232C
interface
Abbreviation
Pin
number
Abbreviation
Pin
number
Connector
hood
Shielding wire
* 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
–
114
13 25
114
13 25
*
FG
CS
RS
RD
SD
TRM
Abbreviation
–
–
SG
–
–
SDA (–)
RDA (–)
–
RDB (+)
SDB (+)
–
–
–
RSB (+)
RSA (–)
1
2
3
4
5
6
7
8
9
Pin
number
Connector
hood
10
11
12
13
14
15
16
–
23
24
25
–
Abbreviation
Pin
number
1
2
3
4
5
6
7
8
20
–
–
–
–
FG
CS
RS
RD
SD
–
SG
–
–
–
–
ER
NT31/NT31C PC (host link unit)
(25-pin
type)
RS-232C/
422A/485
interface
Shielding wire
RS-232C
interface
(25-pin type)
* 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.
Applicable units :
CV500-LK201 (communication port 2)
CS1W-SCU21
CPM1-10CDR-j CPM1-20CDR-j
CPM1A-10CDj-j CPM1A-20CDj-j
CPM1A-30CDj-j CPM1A-40CDj-j
CPM2A-30CDj-j CPM2A-40CDj-j
CPM2A-60CDj-j
CPM2C-10jjjjjj-j CPM2C-20jjjjjj-j
CQM1-CPU21-E
CQM1-CPU41-EV1 CQM1-CPU42-EV1
CQM1-CPU43-EV1 CQM1-CPU44-EV1
CQM1H-CPU11 CQM1H-CPU21
CQM1H-CPU51 CQM1H-CPU61
CS1G-CPU42-E(V1) CS1G-CPU43-E(V1)
Wiring for Other
Connections