Description
The part number 086444-005 refers to an industrial automation component manufactured by ABB (historically associated with Accuray systems).
Key Overview & Specifications
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Product Type: MPRC Board / Direct Fiber Optic Module (PC Board / Add-On Board)
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Brand: ABB / Accuray
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Function: Serves as a direct fiber optics circuit board designed for high-speed, noise-immune data transmission and communication within legacy industrial control systems or measurement platforms.
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Common Applications: Used in heavy industrial processing, quality measurement, and control systems requiring optical isolation and robust data linkage.
086444-005
Product Overview
086444-005 (also referenced as MPRC086444-005) is a Multi-Purpose Remote Controller / Fiber Communication Processor Module manufactured by ABB, belonging to legacy ABB Advant / Master DCS rack hardware platform.
It is a VME-style plug-in processor board, deployed in control rack chassis. It undertakes distributed data processing, field signal preprocessing and optical fiber communication interface management, serving as intermediate data exchange node between local control rack and remote field stations.
The module integrates dual CPU architecture, on-board large-capacity memory and fiber transceiver circuit, widely used for power plant legacy DCS remote monitoring and interlock signal processing.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 086444-005 (MPRC086444-005) |
| Module Type | Remote Processor / Fiber Communication Module |
| Manufacturer | ABB |
| Form Factor | Single-slot VME plug-in board for Advant rack |
| Processor | Dual 32-bit real-time CPU |
| Memory | Onboard RAM + Flash firmware storage |
| Interfaces | Optical fiber port; Internal VME backplane bus; Serial communication terminals |
| Power Supply | Supplied by rack backplane, typical consumption 6 W |
| Supported Protocol | ABB proprietary fieldbus protocol |
| Core Functions | Field data collection, signal preprocessing, fiber long-distance communication, data forwarding, local logic buffering |
| Hot Swap | Supported under compatible rack configuration |
| Operating Temperature | -20 ℃ ~ +60 ℃ |
| Ambient Humidity | 5%–95% non-condensing |
| Protection Class | IP20 (must be installed inside control cabinet) |
| Front Panel Indicators | Power, Run, Fault, Fiber Link LED indicators |
| Spare Part Status | OEM production discontinued; surplus new & refurbished spare modules available |
Key Features
- Dual-processor redundant operation design, improves reliability for continuous process monitoring
- Built-in fiber transceiver, realizes long-distance galvanically isolated communication to suppress ground loop interference
- Independent local data buffering; maintains data collection temporarily when upper communication fails
- Comprehensive hardware self-diagnosis, records internal fault codes, bus and fiber link failure information
- Standard mechanical single-slot layout, compatible with full series Advant rack systems
- Electrical keyed slot design to prevent misplugging different types of modules
- Strict full part number verification required; different suffix hardware variants cannot be directly interchanged without firmware download
- Matches supporting accessories including fiber jumper cables and rack blank filler plates
Application Scope
Important Note: Many suppliers have inconsistent labeling; this is an electronic processor communication board, not passive terminal adapter or mechanical filler.
