Emerson Smart Wireless THUM Reference Manual page 29

Reference Manual
00809-0100-4075, Rev BA
October 2010
Figure 3-17. THUM Adapter
only, Powered by a 24 V Power
Supply with 1200 Ohm resistor
to limit current to 20 mA
Figure 3-18. THUM Adapter
only, Powered by a 24 V Power
Supply with 1200 Ohm resistor
to limit current to 20 mA
Figure 3-19. Wiring Diagram for
2-Wire Device
Smart Wireless THUM Adapter
THUM Adapter
Green
Red
Black
White
Yellow
THUM Adapter
Remote Mount
Housing
Red
Green
Black
Ground
White
Yellow
250 Ohm
Resistor
THUM Adapter
Green
Red
Black
White
Yellow
Ground
250
1200
Ohm
Resistor
Ohm
Resistor
Required
Junction Box
+
-
1200 Ohm
Resistor
Required
Wired Device
Ground
4-20 mA Loop +
4-20 mA Loop -
Splice Connector
- PWR / COMM
+ PWR / COMM
+
24 V
Power
- Supply
24 V
Power
Supply
3-11