Bench Top Configuration - Emerson Smart Wireless THUM Quick Start Manual

June 2016

2.0 Bench top configuration

When performing bench top configuration it is suggested that you connect the
THUM Adapter to a wired device. If this is not possible, the following wiring
diagrams can be used. For bench top configuration, ensure the power supply
used is limited to 0.5 Amps maximum.
Figure 2. THUM Adapter Only, Powered by a Current Source
A. THUM Adapter
B. Ground
Figure 3. THUM Adapter Only, Powered by a 24 V Power Supply with 1200
Ohm Resistor to Limit Current to 20 mA
A. THUM Adapter
B. Ground
A
Green
Red
Black
White
Yellow
A
Green
Red
Black
White
Yellow
B
D
C. 20 mA current source
D. HART Modem
B
D
C. 20 V power supply
D. HART Modem
Quick Start Guide
+
C
-
+
C
-
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