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Allen-Bradley 1786-RPFS ControlNet Short-Distance Fiber Repeater Module – Technical Specifications and FAQ
Technical Specifications
| Item | Details |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Part Number | 1786-RPFS |
| Product Series | ControlNet |
| Product Type | Short-Distance Fiber Optic Repeater Module |
| Main Function | Extends ControlNet communication over fiber-optic cable and provides electrical isolation between network nodes |
| Network Protocol | ControlNet |
| Communication Rate | 5 Mbps |
| Fiber Type | 200/230 µm HCS (Hard-Clad Silica) |
| Maximum Fiber Distance | 300 m (984 ft) |
| Number of Fiber Channels | 2 |
| Connector Type | ST fiber-optic connectors |
| Operating Wavelength | 650 nm (red) |
| Compatible Adapter | 1786-RPA / 1786-RPA/B |
| Maximum Modules per Adapter | Up to 4, subject to the 1.6 A maximum backplane current |
| Backplane Current Consumption | 300 mA @ 5V DC maximum |
| Power Consumption | 1.5 W maximum |
| Mounting Type | Modular repeater adapter / DIN rail assembly |
| Enclosure Rating | Open-style; no enclosure rating |
| Operating Temperature | 0 to +60°C |
| Storage Temperature | -40 to +85°C |
| Dimensions | Approx. 111 × 96.8 × 69 mm |
| Weight | Approx. 0.35 kg (indicative estimate; not an official manufacturer figure) |
| Country of Origin | Multiple countries depending on manufacturing location; verify product label |
| Lifecycle Status |
Discontinued
Effective December 30, 2025 |
| UPC | 612598171118 |
FAQ
FAQ
Q1: What is the Allen-Bradley 1786-RPFS?
A: It is a ControlNet short-distance fiber-optic repeater module used to extend network communication between ControlNet devices.
Q2: What is the maximum communication distance?
A: It supports fiber-optic links up to 300 meters (984 feet), depending on fiber quality, connectors, and total optical signal loss.
Q3: Which fiber-optic cable is compatible with the 1786-RPFS?
A: It uses 200/230 µm HCS (Hard-Clad Silica) fiber-optic cable.
Q4: What type of fiber connectors does it use?
A: It uses ST-type fiber-optic connectors and provides two fiber channels.
Q5: Does the 1786-RPFS require a separate power supply?
A: It receives power through the backplane connection of the 1786-RPA/B repeater adapter. Its maximum current consumption is 300 mA at 5V DC.
Q6: What is the difference between 1786-RPFS and 1786-RPFM?
A: The 1786-RPFS is designed for short-distance fiber links up to 300 meters, while the 1786-RPFM supports medium-distance fiber links up to 3,000 meters.
Q7: What are the dimensions and weight?
A: The mounting dimensions are approximately 111 × 96.8 × 69 mm. The estimated module weight is around 0.35 kg; confirm the actual weight and packaging with the supplier.
Q8: Is the 1786-RPFS still available, and what is its country of origin?
A: Rockwell Automation announced its discontinuation effective December 30, 2025. The manufacturing country may vary, so check the product label or shipping documents before confirming origin.
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Packing & Delivery
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