1786-RPFM | Allen-Bradley ControlNet Fiber Ring Medium Repeater 24 VDC, Dual Fiber-Optic Ports

Description The Allen-Bradley 1786-RPFM is a ControlNet fiber ring medium repeater designed to extend network communication across medium-distance fiber-optic installations. This module provides two fiber channels for robust redundant ring topologies and operates from a 24 VDC supply for reliable industrial use. Technical Specifications Condition New/Never Used Surplus Brand Allen-Bradley Category PLCs/Machine Control Part Number 1786-RPFM Subcategory Fiber Repeater Adapter Module Type ControlNet Fiber Ring Medium Repeater Voltage 24 VDC Power Supply 24 V DC external supply Number of Ports 2 fiber-optic ports Mounting Type DIN rail Fiber Type 62.5/125 µm multimode Maximum Distance Up to 300 m (984 ft) per segment (up to 3000 m depending on topology) Applications ControlNet media extension and ring redundancy Standards CE, CSA, GOST, KC, Marine, NRTL, RCM, UL Module Function Fiber-optic signal repeating and network distance expansion Use Case Medium-distance ControlNet applications Information About 1786-RPFM The 1786-RPFM is part of Allen-Bradley’s ControlNet communication infrastructure, engineered to support medium-distance fiber connections for industrial networks. Designed for ring topologies, it provides two fiber-optic channels that help create redundant communication paths, improving network resilience and uptime. The module operates on 24 VDC and mounts directly to a DIN rail, allowing straightforward integration into existing network enclosures and control panels. Supporting multimode 62.5/125 µm fiber, the repeater enables reliable data transmission for distances up to 300 meters—making it ideal for distributed equipment, remote control stations, and large manufacturing layouts. Key Features: Dual fiber-optic channels: supports redundant ControlNet ring architectures that maintain communication continuity during link failures or maintenance. Medium-distance communication support: extends ControlNet networks up to 300 meters per link using 62.5/125 µm multi