
Publication ICM-UM002F-EN-E - March 2013 19
Installing the XM Dynamic Measurement Module Chapter 2
Figure 2.1 XM Modules with Separate Power Connections
Grounding Requirements
Use these grounding requirements to ensure safe electrical operating
circumstances, and to help avoid potential EMI and ground noise that can
cause unfavorable operating conditions for your XM system.
31865
24 V
24 V COM
Supply
XM
®
XM
®
24 V COM
24 V
1
1
1
1
1
1
1
CAN HIGH
XM BUS COMMON
DRAIN WIRE
CAN LOW
Termination
resistor
121 ohm, 1%,
1/4W
Class 2
To comply with the CE Low Voltage Directive (LVD), all
connections to this equipment must be powered from a source
compliant with the following: Safety Extra Low Voltage (SELV)
or Protected Extra Low Voltage (PELV).
To comply with UL restrictions, this equipment must be
powered from a source compliant with the following: Class 2.
Multiple power sources are not allowed.
See Terminal Block Assignments on page 28 for the terminal
block assignments and descriptions for the Dynamic
Measurement module.
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