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September 2020
Figure 6-5: Direct Mount Wiring Diagram for 4-Wire Passive Device
A. THUM Adapter
B. Wired device
C. Ground
D. Splice connector
E. Load resistor ≥ 250 Ω
F. Power supply
Note
A passive loop exists when the wired device is not supplying power to the 4–
20 mA loop. It is important to verify if the wired device is operating in active
or passive mode.
Quick Start Guide
A
Green
Red
Black
White
Yellow
B
D
4 - 20 mA Loop +
C
4 -20 mA Loop -
Quick Start Guide
F
E
15
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