Purchase now: Allen-Bradley 1756-RMC10 ControlLogix Redundancy Cable
Atlantechdrives provides you the 1756-RMC10, a specialized 10-meter (32.8 feet) fiber-optic cable engineered for the synchronization of Allen-Bradley redundancy modules. This long-reach cable is a critical component for high-availability ControlLogix systems where the primary and secondary chassis are located in separate enclosures or different sections of a large control room to mitigate the risk of simultaneous physical damage.
- Length: 10 Meters (32.8 feet)
- Technology: High-speed Fiber Optic
- Compatibility: 1756-RM, 1756-RM2, and 1756-RMXT modules
- Data Rate: Optimized for 1000 Mbps synchronization
- Jacket: Industrial-grade protective sheath
Technical Architecture: Remote Chassis Redundancy
The 1756-RMC10 is designed for systems that demand the highest level of physical separation between redundant controllers. By providing a 10-meter link, it allows engineers to place the secondary (standby) chassis in a different cabinet, protecting the process from localized fires, power surges, or mechanical impacts that could affect a single enclosure. The cable facilitates the «lock-step» synchronization of the tag database and I/O status between the RM/RM2 modules. Despite the 10-meter distance, the 1756-RMC10 maintains the ultra-low latency required for millisecond-level switchovers. This ensures that the ControlLogix 5570 or 5580 processors stay perfectly mirrored, preventing any «bumpless» transfer issues during a fault event.
Installation Advice: Protecting the Long-Distance Fiber Link
When routing the 1756-RMC10 over a 10-meter distance, physical protection is paramount. We recommend using a dedicated 1-inch (25mm) plastic conduit to house the fiber, ensuring it is not crushed by heavier copper cables. Never exceed the minimum bend radius of the fiber, as this will lead to signal attenuation and «Link Disqualification» in the redundancy software. During installation, use the provided dust caps until the exact moment of connection to the 1756-RM2 ports. If you are experiencing intermittent synchronization, use a fiber cleaning kit specifically designed for LC or specialized industrial connectors to ensure the light path is unobstructed by cabinet dust or oils.
Maintenance and High-Availability Audits
The 1756-RMC10 is a passive but vital link. During annual system audits, check the fiber jacket for any signs of abrasion or stress at the entry points of the cabinets. In the Studio 5000 Redundancy Module Tool, monitor the «Synchronization Quality» metric. A 10-meter run is more susceptible to physical disturbance than a 1-meter run, so ensuring the cable is securely fastened with loose-fitting velcro (not tight zip-ties) is essential. Keeping a spare 1756-RMC10 in stock is a mandatory insurance policy for critical infrastructure projects, as a damaged fiber link effectively renders your multi-million dollar redundant system useless.
FAQs
Q: Can the 1756-RMC10 be used for standard Ethernet communication?
A: No, this cable is factory-certified specifically for the proprietary synchronization link between 1756-RM series modules.
Q: Is there a signal loss over the 10-meter length?
A: No, the 1756-RMC10 is engineered to maintain full 1000 Mbps throughput over its entire length without signal degradation.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.
This redundancy module facilitates high-availability synchronization between two chassis; ensure you use a high-quality 1756-RMC1 fiber cable for the link.
This 1-meter fiber optic cable is the dedicated medium for linking redundancy modules like the 1756-RM2 across separate chassis.
This 10-meter fiber optic cable provides the necessary distance for linking remote 1756-RM2 redundancy modules across separate panels.
