Product Overview
The 1786-BNC is a ControlNet network interface module specifically designed for coaxial (BNC) connections. It ensures high-speed, deterministic data transmission between network devices and controllers. Engineered for industrial environments, this module delivers reliable signal integrity in distributed control systems and supports robust media connections.
Its compact design facilitates easy installation into ControlNet networks without consuming excessive panel space.
Typical Applications
Building or Expanding ControlNet Networks in Industrial Automation
Connecting controllers, I/O nodes, and network devices via coaxial cable
Retrofitting or expanding traditional ControlNet systems
Environments requiring deterministic communication with minimal network noise
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Catalog Number | 1786-BNC |
| Module Type | ControlNet Media Connector |
| Media Interface | Coaxial BNC |
| Maximum Nodes | Up to 99 devices on a single ControlNet segment |
| Data Rate | 5 Mbps |
| Operating Voltage | 24 V DC (from ControlNet network) |
| Current Draw | ~60 mA |
| Temperature Rating | -20…80 ° C (-4…176 °F) |
| Mounting | Standard ControlNet chassis/module slot |
| Cable Types Supported | RG-6/U or equivalent coaxial cable |
| Termination | Integrated 75 Ω terminator required at segment ends |
Installation & System Notes
Connect BNC coaxial cables to ControlNet nodes according to proper wiring standards.
Ensure terminators are installed at both ends of the segment.
Maintain maximum node spacing and cable length as specified in the ControlNet standard.
Compatible with existing ControlNet infrastructure for seamless expansion.
Frequently Asked Questions
Common Problem
Can the 1786-BNC be used in new ControlNet networks?
Yes, it provides standard coaxial connections for both new and existing networks.
What is the maximum number of devices that can be connected?
Up to 99 nodes per segment, depending on cable quality and network layout.
What cable type should be used?
RG-6/U coaxial cable or an equivalent alternative with comparable shielding performance.
Does this module support hot-swapping?
No. System power must be turned off during installation to ensure safety and network integrity.
Trusted Automation Supplier
Fast Quote Service – PLC Export
Trusted Network Solutions
With the 1786-BNC module, you can confidently expand or maintain your ControlNet network, ensuring deterministic communication and minimizing downtime.
Streamlined Industrial Connectivity
Its compact BNC interface simplifies network configuration, reduces cable clutter, and provides a reliable integration solution for distributed automation systems.
Get Your Fastest Response Here
| Contact Method | Details |
|---|---|
| sales3@mooreplc.com | |
| WhatsApp / Phone | +86 180 2071 4662 |
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