ABB UNITROL 3BHE012049R0101 UFD128A101 Optical Communication Module

Product Overview

The ABB 3BHE012049R0101, designated as model UFD128A101, is a high-precision optical communication module developed for the UNITROL® Excitation Systems. This component serves as a critical interface for fiber-optic data transmission within Distributed Control Systems (DCS). By utilizing light-based signaling, the module provides total galvanic isolation, which effectively eliminates electromagnetic interference (EMI) and ground loop issues common in high-voltage industrial environments.

Operating at a standard 1310 nm wavelength, this optical interface supports high-speed data rates up to 1 Gbps. Its primary function involves converting electrical control signals into optical pulses, allowing for long-distance communication between the controller and remote I/O or power conversion units without the signal degradation typically associated with copper cabling.

Key Technical Characteristics

• Optical Performance: Features a 1310 nm wavelength optimized for long-range transmission and minimal signal loss.
• Connectivity: Utilizes a standard LC connector interface to ensure secure, low-insertion-loss fiber connections.
• Compact Integration: The ultra-lightweight and small-form-factor design allows for high-density mounting on industrial motherboards or control racks.
• Ruggedized for Industry: Engineered to operate across a broad temperature range, making it suitable for both indoor control rooms and more demanding outdoor enclosures.
• Plug-and-Play Compatibility: While specifically optimized for ABB UNITROL systems, its standardized protocols allow for seamless integration with compatible third-party industrial automation hardware.

Technical Specifications

• Manufacturer: ABB
• Model Number: UFD128A101
• Order Code: 3BHE012049R0101
• System Category: UNITROL Excitation / DCS
• Module Type: Optical Fiber Interface
• Data Transfer Rate: 1 Gbps
• Wavelength: 1310 nm
• Connector Type: LC
• Physical Dimensions: 16.1cm x 4cm x 1.8cm
• Unit Weight: 0.06 kg (Net)
• Country of Origin: Sweden

Functional Advantages

Because the UFD128A101 utilizes fiber optic technology, it facilitates a significantly more secure data environment compared to traditional wiring. Transitioning to optical communication reduces the need for expensive signal repeaters and enhances the overall safety of the excitation system by isolating high-power electronic noise from the sensitive control logic. Furthermore, the module’s “Active” status ensures long-term availability and support for critical infrastructure upgrades and maintenance.