Allen Bradley 1756-RMC3 Duplex Fiber Optic Cable

The Allen-Bradley 1756-RMC3 is a redundancy module connector cable designed for use with ControlLogix redundancy modules. It is an essential component of the Allen-Bradley ControlLogix product line, enabling reliable fiber-optic communication between redundancy modules in a redundant controller system.

Technical Specifications

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Part Number / Catalog No.: 1756-RMC3

• Series: ControlLogix

• Module Type: Fiber Optic Cable

• Length: 9.84 feet (3 meters)

• Wavelength: 1300 nm

• Transmission: <1000 MB/s

• Channels: 1

• Operating Temperature: 32–140 °F (0–60 °C)

• Enclosure: None

• Wire Size: 20 AWG

• Dimensions: 5.51 x 4.41 x 5.71 inches

Product Overview

The Allen-Bradley 1756-RMC3 fiber-optic cable serves as a connector for ControlLogix redundancy modules in a redundant programmable controller system.

• Compatibility: Works with both standard and extreme-environment ControlLogix redundancy modules.

• Length: 3 meters (9.84 feet) with protective caps for safe shipping and handling.

• Installation: Connects to the bottom of the module and should be positioned downward. Avoid sharp bends to preserve fiber integrity.

• Connector: LC connector coupler can be used between transmitting and receiving ends for easier connection and disconnection.

• Safety Precautions: Route cables strategically to avoid damage, cutting, abrasion, or being run over. Redundant cabling tolerates single-channel faults, but simultaneous failures on both channels can cause network issues.

• Redundancy Function: Enables network operation even when a cable is degraded or fails, ensuring continuous system reliability.

Key Benefits

• Reliable fiber-optic communication for ControlLogix redundant systems.

• Supports standard and extreme-environment redundancy modules.

• Easy connection with LC coupler and protective design.

• Ensures continuous operation in the event of a single cable fault.

• Durable design suitable for industrial environments.