National Instruments RMX-4120

3-8 | ni.com
Chapter 3 External Control
Figure 3-8. Output Terminal is Not Grounded (Floating)
+
–
+
+S
–S
–
+
–
21
22
20
1
23
24
25
AC
INPUT
DC
OUTPUT
J1
J2
SENS
L
N
Load
Rext
RMX
Vext
Because the output terminal
is floating, the section
shown on a gray
background must have a
reinforced or double
insulation with a capacity
greater than or equal to the
RMX isolation voltage.
5
6
13
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
16
18
19
Approximately the same
potential as the negative
output terminal
Isolated