A - 81
Appendices
NX-series Digital I/O Unit User’s Manual (W521)
A-1  Data Sheet
A
A-1-3  Digital Output Units
Installation orienta-
tion and restrictions
Installation orientation:
• Connected to a CPU Unit
Possible in upright installation.
• Connected to a Communications Coupler Unit
Possible in 6 orientations.
Restrictions: As shown in the following.
Terminal connection 
diagram
*1. Electrical service life will vary depending on the current value. Refer to Precautions when Using the Relay Output Units on page 7-20 
for details.
60504030201005545
(8A, 45°C)
8
4
2
0
6
10
12
(4A, 55
°
C
)
(A)
Output current/Unit - 
Ambient temperature characteristics
Ambient temperature
Output current/Unit
(
°
C
)
0
1
A1 B1
A8 B8
C0
C1
C22
3C3
Relay Output Unit NX-OC4633
4
5
C1 D1
C8 D8
C4
C5
C66
7C7
Load
Load