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Allen Bradley 1786-RPFRXL Fiber Ring Repeater Module
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System Integration Overview
The Allen Bradley 1786-RPFRXL is an extra-long-distance fiber ring repeater module designed for ControlNet networks. It extends network reach via fiber optic links, supports ring topology for redundancy, and ensures reliable communication in high-noise industrial environments.
From a system integration perspective, this module is ideal for large-scale automation networks requiring long-distance connectivity, network resilience, and galvanic isolation. The 1786-RPFRXL integrates seamlessly into ControlNet systems, allowing engineers to implement robust communication rings with minimal signal loss.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 1786-RPFRXL |
| Module Type | Fiber Ring Repeater Module |
| Media Type | Fiber Optic (Dual Channel) |
| Topology Supported | Point-to-Point, Star, Ring |
| Maximum Segment Length | ~20 km (dependent on fiber type and attenuation) |
| Power Supply | +5 V DC via repeater adapter |
| Current Draw | 570 mA @ 5 V DC |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Environmental Rating | IP20, DIN rail mount |
| Dimensions (W × H × D) | 102 mm × 100 mm × 69 mm |
| Weight | 0.20 kg |
| Mounting | DIN rail (35 mm) |
| Indicators | LED status indicators for fiber channels; fault relay |
Applications / Use Scenarios
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Extending ControlNet networks across large facilities or multiple buildings.
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Implementing redundant ring topology for continuous communication.
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Deploying in high EMI industrial zones (mining, petrochemical, heavy machinery).
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Isolating network segments to prevent ground loops and interference.
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Long-haul communication between remote modules beyond standard copper limits.
Advantages / Key Features
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Extra-Long Distance Support: Fiber links up to ~20 km.
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Media Isolation: Protects against electrical noise and ground loops.
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Redundant Ring Topology: Network continuity maintained if a segment fails.
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Compact DIN-Rail Mounting: Easy panel integration.
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LED Indicators: Quick diagnostics for each fiber channel.
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Industrial-Grade: Suitable for harsh environments, certified for ControlNet applications.
Technical FAQs
-
Which network protocol is supported?
– ControlNet. -
What type of fiber media is required?
– Multimode or single-mode, depending on installation. -
Can it form a redundant ring?
– Yes, supports ring topology. -
Maximum distance between modules?
– Approximately 20 km. -
What is the power supply requirement?
– +5 V DC via repeater adapter; 570 mA. -
Operating temperature range?
– 0 °C to +60 °C. -
What is the enclosure rating?
– IP20. -
Are status LEDs provided?
– Yes, each channel has LEDs and a fault relay. -
Suitable for hazardous areas?
– Yes, with proper enclosures and certifications. -
Can multiple modules share one repeater adapter?
– Up to two per adapter, considering current limits.
Recommended Related Models
| Model Number | Description |
|---|---|
| 1786-RPA/B | ControlNet Repeater Adapter (hub & power) |
| 1786-RPFM | Medium-distance fiber repeater module |
| 1786-RPFS | Short-distance fiber repeater module |
| 1786-RPCD | Dual-copper repeater module |
Popular Allen Bradley Models
| Model Number | Description |
|---|---|
| 1786-RPA/B | Repeater Adapter for ControlNet |
| 1786-RPFRL | Long-distance Fiber Ring Repeater |
| 1786-RPFRXL | Extra-long-distance Fiber Ring Repeater (this model) |
| 1786-RPFM | Medium-distance Fiber Repeater |
| 1786-RPCD | Dual-copper Repeater Module |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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