The Allen Bradley 1786-RPA ControlNet Repeater Adapter is a core infrastructure component designed to power and coordinate ControlNet repeater modules, enabling reliable expansion of industrial communication networks. It serves as the central mounting and power distribution unit for fiber and copper repeater modules such as 1786-RPFM, 1786-RPCD, and related ControlNet communication devices.
Built for high-reliability industrial environments, the 1786-RPA ensures deterministic communication performance across distributed automation systems. It provides regulated backplane power, mechanical support, and system-level coordination for multi-segment ControlNet architectures used in manufacturing, energy, and process control industries.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model Number | 1786-RPA |
| Product Family | ControlNet |
| Module Type | Repeater Adapter / Power Base Unit |
| Network System | ControlNet Communication System |
| Input Power | 24 V DC (nominal) |
| Input Voltage Range | 18–36 V DC |
| Backplane Power Output | 5 V DC distribution |
| Max Backplane Current | Up to 1.6 A |
| Power Dissipation | Approx. 16.8 W |
| Supported Modules | 1786-RPCD, 1786-RPFM, 1786-RPFS, etc. |
| Mounting Type | DIN rail / panel mount |
| System Role | Power, mounting, and coordination hub |
| Operating Temperature | 0°C to 60°C |
| Protection Class | Industrial control enclosure required |
Physical Dimensions & Weight
| Mechanical Parameter | Specification |
|---|---|
| Overall Dimensions (L × W × H) | Approx. 69 × 102 × 127 mm |
| Weight | Approx. 0.2 kg |
Recommended Related Models
The 1786-RPA is used as the central base for a full ControlNet repeater system.
| Related Model | Description |
|---|---|
| 1786-RPCD | Dual Copper Repeater Module |
| 1786-RPFM | Medium-Distance Fiber Repeater Module |
| 1786-RPFS | Short-Distance Fiber Repeater |
| 1786-RPFRL | Long-Distance Fiber Ring Repeater |
| 1786-RPFRXL | Extended Fiber Repeater Module |
| 1786-BNC | Coaxial Connector |
| 1786-XT | ControlNet Terminator |
| 1786-TPS | ControlNet Tap Module |
| 1756-CN2 | ControlLogix ControlNet Module |
| 1756-EN2TR | Ethernet/IP Communication Module |
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|---|---|
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