Emerson Smart Wireless THUM Adapter Reference Manual page 27

Reference Manual
00809-0100-4075, Rev CA
Figure 3-10. Remote mount wiring diagram for 4-wire passive device with resistor
Ground
Figure 3-11. Direct mount wiring diagram for 4-wire active device
NOTE:
An active loop exists when the wired device is supplying the power to the 4-20 mA loop. It is
important to verify if the wired device is operating in active or passive mode.
Mounting
THUM Adapter
Remote Mount Housing
Red
Black
Green
White
Yellow
+ COMM
- COMM
THUM Adapter
Green
Yellow
White
Black
Red
Load Resistor 250
4-20 mA Loop +
4-20 mA Loop -
Shield Wire
To Wired Device
Wired Device
Splice Connector
4-20 mA Loop +
Ground
4-20 mA Loop -
Section 3: Mounting
March 2014
+ Power
- Supply
Input
Card
Load Resistor 250
19