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The Allen-Bradley 1756-RMC1 is a 1-meter (3.28 ft) duplex single-mode fiber-optic cable engineered for the ControlLogix 1756 redundancy platform. This cable serves as the high-speed synchronization link between redundant ControlLogix chassis, enabling seamless state and memory cross-loading between the Primary and Secondary controllers. By facilitating deterministic communication between redundancy modules, the 1756-RMC1 ensures high availability and zero-downtime performance in mission-critical automation applications.
This cable is essential for ControlLogix hot-backup configurations in industries requiring continuous operation, such as oil and gas, power generation, and chemical processing. It connects the redundancy modules to maintain synchronized I/O states and memory, preventing system failure during controller transitions.
| Model | 1756-RMC1 |
| Cable Length | 1.0 Meter (3.28 Feet) |
| Connector Type | Duplex LC |
| Fiber Type | Single-Mode |
| Operating Wavelength | 1300 nm |
| Operating Temperature | -25 to 70 deg C |
| Storage Temperature | -40 to 85 deg C |
| Humidity | 5 to 95 percent non-condensing |
Is this cable compatible with all ControlLogix redundancy modules?
The 1756-RMC1 is compatible with the 1756-RM, 1756-RM2, 1756-RMXT, and 1756-RM2XT modules.
Can I use this cable in high-EMI environments?
Yes, because the cable uses fiber-optic technology, it is inherently immune to electromagnetic and radio frequency interference, making it ideal for high-voltage industrial panels.