Ams trex™ Device Communicator

2.4
Back view of the Trex unit
You can access the communication module, the stand, and the power module.
Figure 2-3: Back view
A. Communication module
B. Stand
C. Power module
Related information
Communication modules
Replace the stand
Power module
2.4.1
Serial numbers
The Trex unit has a serial number for each part, including the main unit, power module,
and communication module. The label on each part lists the serial number. You may need
to provide a serial number if you work with technical support.
You can view the serial number from the 
Settings
. (Tap 
Settings
→
About
→
CPU Board
Serial Number
.) The serial number is located on the label on the bottom of the Trex unit,
near the power module LEDs.
User Guide 
AMS Trex Device Communicator overview
September 2021
User Guide 
13

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2.5
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 2-4: Device Communicator communication module
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.
AMS Trex Device Communicator overview
User Guide
September 2021
14
User Guide

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