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Industrial Technical Report – 1756-RMC10 ControlLogix Redundancy Fiber Optic Cable (10 Meter)
Product Overview
The 1756-RMC10 is a ControlLogix redundancy fiber optic communication cable used to connect redundancy modules in dual-controller PLC systems. It provides a high-speed optical link between two redundancy modules such as RM, RM2, RM2XT, enabling real-time synchronization of controller data.
This model is the longest standard cable in the RMC series, designed for installations where redundancy racks are physically separated or require flexible cabinet layout. It ensures stable, interference-free communication between redundant controllers in industrial automation systems.
The cable is a passive component and does not require configuration or power supply.
Brand Information
The product belongs to a globally recognized industrial automation ecosystem specializing in programmable logic controllers, industrial communication systems, motion control, and redundancy architectures.
It is widely applied in:
- Industrial automation systems
- High-availability PLC architectures
- Process control environments
- Energy infrastructure systems
- Oil and gas automation networks
Key characteristics include:
- Fiber-optic interference immunity
- High-speed redundancy communication
- Industrial-grade durability
- Long-distance transmission capability
- Plug-and-play installation design
Product Series
ControlLogix Redundancy Communication System
The 1756-RMC10 belongs to the ControlLogix redundancy interconnect cable family, designed specifically for RM-series redundancy modules.
Key system features include:
- Fiber-optic duplex communication
- High-speed controller synchronization support
- EMI-free data transmission
- Modular redundancy architecture compatibility
- Flexible system layout support
Supported modules include:
- 1756-RM
- 1756-RM2
- 1756-RM2XT
- ControlLogix redundant controller systems
The cable ensures real-time synchronization between primary and secondary controllers.
Technical Parameters
Detailed Specification Table
| Parameter | Specification |
|---|---|
| Model | 1756-RMC10 |
| Product Type | Redundancy Fiber Optic Cable |
| Series | ControlLogix Redundancy System |
| Function | Controller synchronization link |
| Cable Length | 10 meters (32.81 ft) |
| Cable Type | Duplex fiber optic cable |
| Connector Type | LC-to-LC connectors |
| Supported Modules | 1756-RM / RM2 / RM2XT |
| Transmission Method | Optical signal |
| Data Rate | Up to 1 Gbps (system dependent) |
| Channel Count | 1 duplex channel |
| Wavelength | 1300 nm typical |
| Attenuation | Low-loss industrial grade |
| Bend Radius | ≥ 30 mm |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| EMI Resistance | Fully immune (fiber-based) |
| Installation Type | Plug-in redundancy connection |
| Maintenance | Maintenance-free passive component |
| Jacket Material | Industrial protective polymer |
| Fire Rating | Industrial cable standard |
| Dimensions | 1000 × 0.5 × 0.5 cm |
| Weight kg（ ） | ~0.09 kg |
(Industry listings commonly report ~0.09 kg / 0.19 lbs depending on packaging and revision.)
Product Description
The 1756-RMC10 is a long-distance redundancy fiber optic cable designed for ControlLogix systems. It connects redundancy modules installed in separate chassis and enables real-time synchronization of controller states.
Because it uses fiber-optic transmission, it eliminates electromagnetic interference issues commonly found in industrial environments. This ensures stable communication even in electrically noisy installations such as factories, refineries, and power stations.
It is typically used when redundancy racks cannot be installed in close proximity, offering installation flexibility without compromising synchronization performance.
Product Applications
Redundant PLC Systems
Used in:
- Dual-controller synchronization systems
- High-availability automation architectures
- Fault-tolerant control systems
- Continuous production lines
Industrial Manufacturing
Applied in:
- Automotive production systems
- Packaging automation lines
- Assembly systems
- Material handling systems
Energy Sector
Used in:
- Power generation plants
- Substation control systems
- Renewable energy monitoring
- Grid automation systems
Oil & Gas Industry
Used in:
- Offshore drilling platforms
- Pipeline monitoring systems
- Refinery control systems
- SCADA networks
Transportation Systems
Used in:
- Railway signaling systems
- Metro automation systems
- Airport control systems
- Traffic infrastructure systems
Product Advantages
1. Long-Distance Redundancy Support
Enables flexible placement of redundant racks up to 10 meters apart.
2. EMI-Free Optical Communication
Fiber transmission eliminates electromagnetic interference.
3. Stable High-Speed Synchronization
Ensures real-time controller data exchange.
4. Plug-and-Play Installation
No configuration required, fast deployment.
5. Industrial Durability
Designed for harsh industrial environments.
6. Maintenance-Free Design
Passive component with no electronic failure points.
Recommended Models (Same Series or Related)
ControlLogix Redundancy Communication Components
| Model | Type | Function | Key Feature | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-RMC10 | Fiber Cable | Redundancy link | 10m long-distance connection | 1000×0.5×0.5 cm | 0.09 kg |
| 1756-RMC1 | Fiber Cable | Redundancy link | 1m short-distance connection | 100×0.5×0.5 cm | 0.05 kg |
| 1756-RMC3 | Fiber Cable | Redundancy link | 3m medium connection | 300×0.5×0.5 cm | 0.10 kg |
| 1756-RM2 | Redundancy Module | Controller sync | Hot standby system | 14×13×4 cm | 0.60 kg |
| 1756-RM2XT | XT Redundancy Module | Harsh environment sync | Extreme temperature design | 13.5×11×14 cm | 0.45 kg |
| 1756-RM | Redundancy Module | Legacy system sync | Standard redundancy module | 13.5×11×14 cm | 0.75 kg |
Recommended Popular Models (Same Platform Ecosystem)
Widely Used ControlLogix Modules
| Model | Function | Network | Role | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-L85E | PLC Controller | EtherNet/IP | Main processor unit | 15×14×13 cm | 0.65 kg |
| 1756-EN2TR | Ethernet Module | EtherNet/IP | Network communication | 13×14×12 cm | 0.48 kg |
| 1769-L36ERM | Compact PLC | Ethernet | Mid-level controller | 15×11×10 cm | 0.75 kg |
| 1734-AENTR | I/O Adapter | EtherNet/IP | Remote I/O gateway | 7×7×7 cm | 0.20 kg |
| 5069-L320ER | Advanced PLC | EtherNet/IP | High-performance control system | 13×10×9 cm | 0.54 kg |
Installation Notes
The cable must be installed with proper fiber handling practices to avoid bending stress or connector contamination.
Key requirements:
- Maintain minimum bend radius (≥30 mm)
- Keep connectors clean and protected
- Avoid mechanical stress on LC connectors
- Route separately from high-power cables
- Verify correct module pairing before commissioning
Maintenance Characteristics
- No electrical maintenance required
- Passive fiber-optic design
- High durability under industrial conditions
- Long service life
- Easy replacement if damaged
Final Summary
The 1756-RMC10 is a 10-meter fiber optic redundancy cable used in ControlLogix systems to connect redundancy modules and ensure reliable real-time synchronization between dual controllers.
Its key value lies in long-distance, interference-free communication capability, making it essential for large-scale and high-availability industrial automation systems where system continuity is critical.