Communication Modules - Emerson AMS Trex Quick Start Manual

Communication modules

The Trex unit has two communication modules.
Device Communicator communication module
The Device Communicator communication module can connect to and
communicate with HART and FOUNDATION fieldbus devices on an
externally-powered HART loop or fieldbus segment. The Device
Communicator communication module has unique terminals for both HART
and FOUNDATION fieldbus devices.
Figure 2:
A. Connect to externally-powered FOUNDATION fieldbus devices.
B. Connect to externally-powered HART devices.
Device Communicator Plus communication module
The Device Communicator Plus communication module can connect to
HART and FOUNDATION fieldbus devices, measure current and voltage, and
power a device.
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Device Communicator communication module
Quick Start Guide