Allen-Bradley 1786-XT ControlNet Coaxial Connector

Product Description

Configured for ControlNet coaxial termination, the Allen-Bradley 1786-XT (1786-XT connector) provides a 75 ohm physical termination for Bulletin 1786 communication media. The unit combines a coaxial BNC plug with a terminal resistor and supports installation in nonhazardous locations.

Hardware Specifications

ControlNet Physical Layer Characteristics

The 1786-XT terminates ControlNet coaxial media through a BNC connection and integrated terminal resistor. Its 75 ohm impedance matches the specified ControlNet coaxial transmission system.

Furthermore, the termination resistor establishes the required electrical termination at the applicable network end point. Correct termination prevents signal reflections that can affect ControlNet communication integrity.

As an Allen-Bradley Bulletin 1786 component, the connector supports the physical media layer rather than performing programmable logic, I/O processing, or protocol conversion.

Frequently Asked Questions (FAQ)

Q: What communication network does the 1786-XT support?
A: The 1786-XT is specified for ControlNet communication media and uses a 75 ohm coaxial interface.

Q: What type of connector does the 1786-XT use?
A: It uses a coaxial BNC plug with an integrated terminal resistor.

Q: Does the 1786-XT require electrical power?
A: No power consumption is specified because the 1786-XT functions as a passive coaxial termination component.

Field Installation Guidelines

• Install the 1786-XT only at the appropriate ControlNet coaxial termination point.
• Verify that the coaxial connection is fully seated before commissioning the network.
• Maintain the specified 75 ohm impedance throughout the ControlNet coaxial media path.
• Keep coaxial communication cables separated from high-current power wiring where practical.
• Avoid sharp bends, excessive mechanical tension, or damage to the coaxial cable and BNC interface.
• Install the component only in nonhazardous locations as specified.
• Inspect the connector and termination interface for contamination or mechanical damage before installation.
• Do not apply electrical power to the connector; it functions as a passive termination device.

Other Attributes

• Series: Allen-Bradley ControlLogix
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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