Allen-Bradley 1786-RPFPXLB ControlNet Fiber Ring Extra Long Repeater Module

Brand Allen-Bradley

Model 1786-RPFPXLB

Alternative Model 1786-RPFRXL/B

Type ControlNet Fiber Repeater Module

Series ControlNet

Core Function Fiber Optic Network Extension & Redundant Communication

Country of Origin USA

Condition New / Refurbished / Surplus Available

Availability In Stock / Contact Us

Warranty 12 Months

Send E-mail Request Quote

Product Description

Product Overview

Allen-Bradley 1786-RPFPXLB is a ControlNet Fiber Ring Extra Long Repeater Module designed for extending ControlNet communication networks through fiber optic media. It provides long-distance communication capability while improving network reliability in industrial environments with electrical noise interference.

The module supports fiber ring topology and provides two fiber communication channels with status indicators for monitoring communication activity. It is commonly used in large industrial facilities where ControlNet networks need to connect remote automation areas while maintaining deterministic communication performance.

For existing Allen-Bradley ControlNet installations, the 1786-RPFPXLB / 1786-RPFRXL/B is mainly used as a maintenance spare to replace failed repeater modules without redesigning the complete network infrastructure. Rockwell Automation has listed related ControlNet repeater products as discontinued or lifecycle-ending products, increasing demand for available spare inventory.

Technical Specifications

Parameter	Specification
Manufacturer	Allen-Bradley / Rockwell Automation
Model Number	1786-RPFPXLB
Equivalent Model	1786-RPFRXL/B
Product Type	ControlNet Fiber Ring Repeater Module
Network Type	ControlNet
Communication Medium	Fiber Optic
Fiber Channels	2
Topology Support	Fiber Ring
Distance Capability	Extra Long Fiber Distance
Fiber Type	Multimode Fiber
Status Indicators	Power / Channel Status
Power Requirement	Supplied through 1786-RPA/B Adapter
Installation	ControlNet Repeater System
Protection Rating	IP20
HS Code	8517622990
Estimated Weight	Approx. 0.2 kg

System Compatibility & Technical Background

Allen-Bradley ControlNet Network Architecture

The 1786-RPFPXLB operates as a communication extension component inside ControlNet networks.

Typical architecture:

(1) ControlLogix / PLC Controller

↓

(2) ControlNet Scanner Module

↓

(3) ControlNet Coax Network

↓

(4) 1786-RPA/B Repeater Adapter

↓

(5) 1786-RPFPXLB Fiber Ring Repeater

↓

(6) Remote ControlNet Nodes

Main functions:

(1) Convert ControlNet signals between copper and fiber media

(2) Extend network transmission distance

(3) Support redundant fiber ring communication

(4) Reduce electromagnetic interference impact

(5) Maintain reliable communication between remote automation areas

The 1786-RPFRXL/B family provides two fiber channels and is designed for fiber ring applications requiring extended transmission distances.

Replacement Information

Allen-Bradley 1786-RPFPXLB is mainly used for maintenance replacement in existing ControlNet systems.

Before ordering, confirm:

(1) Exact catalog number:

1786-RPFPXLB / 1786-RPFRXL/B

(2) Existing ControlNet network structure

(3) Fiber cable type

(4) Repeater adapter model

(5) Ring or point-to-point configuration

Typical replacement situations:

(1) Fiber communication failure

(2) ControlNet node offline

(3) Repeater hardware fault

(4) Legacy ControlNet system maintenance

Applications

Typical industries:

(1) Manufacturing plants

(2) Automotive systems

(3) Energy facilities

(4) Chemical plants

(5) Industrial automation projects

Ordering Tips

For quotation, please provide:

(1) Part number

(2) Quantity

(3) Existing ControlNet system information

(4) Delivery country

(5) Required condition

A photo of the module label can help confirm compatibility.

Verification & Quality Control

Before shipment:

(1) Confirm Allen-Bradley identification

(2) Check fiber ports

(3) Inspect connectors

(4) Test communication function when available

(5) Package with anti-static protection