The Allen Bradley 1786-RPA ControlNet Modular Repeater Adapter is a critical infrastructure component designed to extend, segment, and stabilize ControlNet industrial communication networks. It provides a robust foundation for building large-scale deterministic control systems where reliable high-speed data transmission is essential.
Used in distributed automation architectures, the 1786-RPA enables engineers to expand network distance, integrate fiber and coax media, and configure advanced topologies such as ring, star, and linear structures. It is widely deployed in manufacturing plants, process industries, and heavy automation systems requiring uninterrupted network performance.
Technical Specifications
| Specification Item | Details |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model Number | 1786-RPA |
| Product Series | ControlNet |
| Module Type | Modular Repeater Adapter |
| Network Type | ControlNet Communication System |
| Power Supply | 24 V DC (18–36 V DC range) |
| Power Consumption | Max approx. 16.8 W |
| Backplane Output Current | Up to 1.6 A @ 5 V DC |
| Communication Media | RG-6 Coaxial / Fiber via modules |
| Supported Topologies | Ring, Star, Linear, Point-to-Point |
| Mounting Type | DIN rail or panel mount |
| Operating Temperature | 0°C to 60°C |
| Function | Network extension & signal regeneration |
Physical Dimensions & Weight
| Mechanical Parameter | Specification |
|---|---|
| Overall Dimensions (L × W × H) | Approx. 69 × 102 × 127 mm |
| Weight | Approx. 0.2–2.0 kg (depending on configuration/packaging) |
Recommended Related Models
The 1786-RPA is typically deployed with ControlNet communication and repeater ecosystem components to build scalable industrial networks.
| Related Model | Description |
|---|---|
| 1786-RPCD | Dual Copper Repeater Module |
| 1786-RPFS | Short-Distance Fiber Repeater |
| 1786-RPFM | Medium-Distance Fiber Module |
| 1786-RPFRL | Fiber Ring Repeater (Long) |
| 1786-RPFRXL | Extended Fiber Ring Repeater |
| 1786-BNC | Coaxial BNC Connector |
| 1786-XT | ControlNet Terminator |
| 1786-TPS | ControlNet Tap Module |
| 1756-CN2 | ControlNet Communication Module |
| 1756-EN2TR | Ethernet/IP Communication Module |
Popular Allen Bradley Automation Ecosystem
Allen Bradley systems are widely adopted in global industrial automation for their reliability, scalability, and network integration capabilities.
| Popular Model | Product Category |
|---|---|
| 1756-L83E | ControlLogix Controller |
| 1769-L36ERM | CompactLogix Controller |
| 5069-IF8 | Compact I/O Module |
| 2711P-T12C4D8 | PanelView Plus HMI |
| 20G11NC072JA0NNNNN | PowerFlex 755 Drive |
| 1734-AENTR | POINT I/O Adapter |
| 1606-XLS240E | Industrial Power Supply |
| 1756-EN2TR | Ethernet/IP Communication Module |
| 1794-IE8 | FLEX I/O Analog Module |
| 25B-D013N114 | PowerFlex 525 Drive |
