The Allen-Bradley 1786-RPA/B is a ControlNet Modular Repeater Adapter. It is the base adapter for building a ControlNet repeater system with compatible repeater modules such as the 1786-RPCD, 1786-RPFS, and 1786-RPFM. It supplies power to the repeater modules and allows ControlNet network extension and media conversion between copper and fiber.
Features
- Provides the base/power adapter for ControlNet repeater assemblies.
- Supplies 24 V DC input power and up to 1.6 A at 5 V DC to attached repeater modules.
- Supports copper-to-fiber and fiber-to-copper media conversion when used with compatible fiber repeater modules.
- Can be used to extend ControlNet network distance.
- Supports star, ring, and point-to-point network configurations.
- Supports up to four compatible repeater modules, subject to the 1.6 A power limit.
- With 1786-RPFRL/RPFRXL modules, only two modules can be connected because each draws 570 mA.
- DIN-rail mounting and removable power connections simplify industrial installation.
Typical Applications
- ControlNet network extension
- ControlNet copper-to-fiber conversion
- Long-distance industrial communication
- Star and ring ControlNet networks
- Distributed ControlLogix systems
- Industrial automation networks
- Marine and offshore automation
- Process-control communication systems





























