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Wiring Methods Section 2-4
Note Use a separate power supply for DeviceNet communications. The power sup-
ply can be shared, however, if noise interference is not generated by the inter-
nal circuit power supply, Sensor power supply, or other source.
Note The following cable crimp terminals are recommended.
• Phoenix Contact, AI Series
2-4-8 Connecting the Terminating Resistors (Terminators)
Use any of the following methods to terminate the ends of the trunk line.
Connecting to a T-branch Tap or Power Supply Tap
Connect a Terminating Resistor to the Tap.
A Terminating Resistor is provided with each OMRON T-branch Tap or Power
Supply Tap. Insert the Terminating Resistor in the T-branch Tap as shown in
the following diagram. The resistor can face in either direction.
Connecting to a T-branch Connector
Connect one of the following terminators (Connector with Terminating Resis-
tance) to a T-branch Connector at the end of the trunk line.
The Terminators have a built-in Terminating Resistor. These Terminators can
be used with T-branch Connectors only.
Tighten the Terminators securely by hand. Tighten a Micro-size Terminator to
a torque of between 0.39 and 0.49 N
⋅m. Tighten a Mini-size Terminator to a
torque of between 0.7 and 0.8 N
⋅m.
Wire size Crimp
terminal
Crimping Tool
AWG24 AI 0.25-6BU CRIMPFOX
ZA3
AWG22 AI 0.34-6TQ
AWG20 AI 0.5-6WH
AWG18 AI 0.75-6GY
AWG16 AI 1.5-6BK
Terminator model Description
DRS2-1 Micro-size (M12) Connector (male plug)
DRS2-2 Micro-size (M12) Connector (female socket)
DRS3-1 Mini-size Connector (male plug)
T-branch Tap
Trunk line
Terminating
Resistor
Branch
line
Terminating Resistor
T-branch
Tap
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