Emerson 781, Quick Start Manual

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Figure 2-2: Emerson Wireless Field Link Terminal Diagram
A
B
C
D
A
Data A (+)
B Data B (–)
C +10.5 to 30 VDC
D Return
2.3 Grounding
The Field Link enclosure should always be grounded in accordance with
national and local electrical codes. The most effective grounding method is a
direct connection to earth ground with minimal impedance. Ground the
Field Link by connecting the external ground lug to earth ground. The
connection should be 1 Ω or less.
September 2020 Quick Start Guide
Quick Start Guide 7