Allen-Bradley 1756-RMC1 Fiber Optic Cable for ControlLogix Redundancy

Product Introduction

When building a ControlLogix redundant controller system, reliable communication between redundancy modules is critical. The Allen-Bradley 1756-RMC1 fiber optic cable provides this essential link. Designed for the ControlLogix series, this cable connects 1756-RM2 and 1756-RM2K redundancy modules, ensuring seamless data transfer and system uptime. With a length of 1 meter (3.28 feet), it is the shortest cable available for these modules, making it ideal for compact chassis configurations.

Technical Specifications

The 1756-RMC1 operates at a wavelength of 1300 Newton Meters and supports a transmission speed of less than 1000 MB-Second. It is a single-channel cable with a wire size of 20 AWG. The cable can withstand operating temperatures from 32 to 140 Fahrenheit (0 to 60 Celsius). Its shipping dimensions are 5.51 x 4.41 x 5.71 inches, and it comes in an open enclosure. These specifications ensure reliable performance in industrial environments.

Industry Applications

In manufacturing plants where system redundancy is paramount, the 1756-RMC1 enables fault-tolerant control. For example, in a continuous production line, a redundant controller system with this cable can tolerate a single fault on one channel without disrupting operations. This cable is also used in critical infrastructure like power generation and water treatment, where unplanned downtime is unacceptable. Its compact length suits tight spaces in control cabinets.

Installation & Setup Guidance

Connect the 1756-RMC1 at the bottom of the redundancy module in a downward orientation. Before connecting, remove the protective caps. Because the cable contains optical fibers, avoid sharp bends. Use the LC connector coupler to prevent bending and allow easy connection and disconnection without removing the module from the chassis. Ensure the cable path is free from activities that could cause abrasion, cutting, or damage.

Maintenance & Reliability

Regularly inspect the 1756-RMC1 for signs of wear, especially at connection points. Keep the cable away from high-traffic areas to avoid physical damage. The redundant fiber cable system can tolerate one fault on a single channel, but network operation becomes unpredictable if both channels fail. Periodic testing of the redundancy system ensures continued reliability.

Selection Guide & Purchasing Advice

Before ordering, verify that your system uses ControlLogix 1756-RM2 or 1756-RM2K redundancy modules, as the 1756-RMC1 is specifically designed for these. Note that redundancy modules and chassis do not ship with this cable, so order it separately. For current availability and lifecycle status, contact plcmatrix.com, a trusted supplier of industrial automation components.