NPort IA5150/5250 Series User’s Manual
Pinouts and Cable Wiring
A-2
Port Pinout Diagrams
RS-232/422/485 (male DB9) Pinouts
1 2 3 4 5
6 7 8 9
P
P
i
i
n
n
R
R
S
S
-
-
2
2
3
3
2
2
R
R
S
S
-
-
4
4
2
2
2
2
/
/
4
4
-
-
w
w
i
i
r
r
e
e
R
R
S
S
-
-
4
4
8
8
5
5
2
2
-
-
w
w
i
i
r
r
e
e
R
R
S
S
-
-
4
4
8
8
5
5
1
1
D
D
C
C
D
D
T
T
x
x
D
D
-
-
(
(
A
A
)
)
-
-
-
-
-
-
2
2
R
R
x
x
D
D
T
T
x
x
D
D
+
+
(
(
B
B
)
)
-
-
-
-
-
-
3
3
T
T
x
x
D
D
R
R
x
x
D
D
+
+
(
(
B
B
)
)
D
D
a
a
t
t
a
a
+
+
(
(
B
B
)
)
4
4
D
D
T
T
R
R
R
R
x
x
D
D
-
-
(
(
A
A
)
)
D
D
a
a
t
t
a
a
-
-
(
(
A
A
)
)
5
5
G
G
N
N
D
D
G
G
N
N
D
D
G
G
N
N
D
D
6
6
D
D
S
S
R
R
-
-
-
-
-
-
-
-
-
-
-
-
7
7
R
R
T
T
S
S
-
-
-
-
-
-
-
-
-
-
-
-
8
8
C
C
T
T
S
S
-
-
-
-
-
-
-
-
-
-
-
-
9
9
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4W/2W RS-485/RS-422 (Terminal Block) Pinouts
1 2 3 4 5
PIN RS-422/RS-485(4W)
RS-485(2W)
1 TxD+(B)
---
2 TxD-(A)
---
3 RxD+(B) Data+(B)
4 RxD-(A) Data-(A)
5 GND
GND