Description
Technical Parameters & Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Series | Mark V Speedtronic |
| Full Model | DS200FCRLG1A |
| Board Type | Fiber Optic Communication Receiver / Link Board |
| Optical Interface | 2 fiber optic receiver ports (dual redundant) |
| Fiber Type | Multimode (62.5/125µm) |
| Connector Type | ST (bayonet) with improved retention |
| Maximum Cable Length | 3 km (per segment, increased) |
| Data Rate | 10 Mbps (full duplex) |
| Communication Protocol | GE proprietary (Mark V serial link) |
| VME Interface | VME backplane (parallel data transfer) |
| Redundancy | Dual redundant optical receivers with automatic selection and link health monitoring |
| Diagnostics | Link status, signal strength, error counters, and bit error rate (BER) monitoring |
| Diagnostic LEDs | Receive, link status, fault, redundancy active, signal quality |
| Operating Temp | -30°C to +65°C |
| Protection | Enhanced conformal coating + gold-plated edge connectors (30µin) |
| Physical Dimensions | 6U VME format (233mm × 160mm) |
| MTBF | > 125,000 hours |
Core Advantages & Key Features
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Fiber Optic Signal Reception – The DS200FCRLG1A provides noise-immune, reliable reception of optical signals from fiber optic communication links, eliminating the susceptibility to electromagnetic interference (EMI) and ground loops that affect copper-based communication.
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Extended Distance Capability – Supports fiber optic cable runs up to 3 km (increased from 2 km), enabling connection to remote equipment located farther from the main control rack.
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Dual Redundant Optical Receivers – Two independent fiber optic receiver ports provide redundant reception paths with automatic selection. If one path loses signal, the DS200FCRLG1A automatically switches to the backup path without interruption.
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Enhanced Diagnostics – The Revision A adds bit error rate (BER) monitoring and link health trending, enabling early detection of fiber degradation before complete failure.
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High-Speed Data Reception – 10 Mbps full-duplex reception provides fast data exchange between remote devices and the Mark V system.
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Electrical Isolation – Fiber optic communication provides complete electrical isolation between the Mark V system and remote equipment, eliminating ground loop issues and protecting against voltage transients.
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Improved Receiver Sensitivity – Enhanced optical receivers with better signal-to-noise ratio for more reliable reception over longer distances.
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Signal Quality Indicator – Dedicated LED shows receive signal quality for quick assessment of link health.
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Robust Environmental Protection – Enhanced conformal coating and 30µin gold-plated edge connectors ensure reliable operation in humid, dusty, or corrosive environments.
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Plug-and-Play Compatibility – The DS200FCRLG1A integrates seamlessly with all Mark V main processors, including DS200CPCAG1A, and works alongside fiber optic gateway boards such as DS200FCGDH1, DS200FCGDH1B, and DS200FCGDH1BAA without additional interface hardware.
Typical Applications
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Remote I/O Panels – Receives fiber optic signals from remote I/O panels located near field devices, with support for distances up to 3 km.
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Distributed Control Systems – Provides fiber optic signal reception for communication between Mark V racks and DCS platforms.
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Isolated Communication – Provides electrical isolation between the control system and field equipment in high-EMI environments.
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Long-Distance Communication – Enables signal reception over distances up to 3 km between control racks and remote monitoring stations.
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Redundant Communication – Dual optical receivers provide high-availability signal reception for critical turbine control systems.
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Offshore Platforms – Extended distance capability supports communication across large offshore installations.
Field Example: A North American power plant installed DS200FCRLG1A boards as receiver units for remote I/O panels located 2.5 km from the main control room. The extended distance capability eliminated the need for repeaters, and the BER monitoring enabled predictive replacement of aging fiber connectors before they caused communication failures.
Comparison: DS200FCRLG1A vs. Base Version vs. Other Communication Options
| Feature | DS200FCRLG1A | DS200FCRLG1 (Base) | Serial Communication (RS-485) | Ethernet Communication |
|---|---|---|---|---|
| Primary Function | Fiber optic receiver | Fiber optic receiver | Serial communication | Ethernet communication |
| Maximum Distance | 3 km | 2 km | 1.2 km | 100 m (copper) / 2 km (fiber) |
| EMI Susceptibility | None | None | High | Moderate |
| Electrical Isolation | Yes (complete) | Yes (complete) | No | No (unless fiber) |
| Redundancy | Dual receivers with auto-selection | Dual receivers with auto-selection | Requires external switch | Requires external switch |
| BER Monitoring | Yes | No | No | No |
| Signal Quality Indicator | Yes | No | No | No |
| Data Rate | 10 Mbps | 10 Mbps | Up to 115.2 kbps | 10/100/1000 Mbps |
| Hot-Swap Support | Yes | Yes | No | Yes |
| MTBF | > 125,000 hours | > 105,000 hours | 80,000 hours | 100,000 hours |
Selection Guidelines & Precautions
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Evaluate Communication Distance – The DS200FCRLG1A supports distances up to 3 km, making it ideal for large installations with widely distributed equipment.
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Verify Fiber Type and Connectors – Ensure the board’s ST connectors and 62.5/125µm multimode fiber match the existing or planned fiber infrastructure.
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Check Redundancy Requirements – The dual optical receivers provide automatic selection for critical communication links. BER monitoring enables proactive maintenance.
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Proper Fiber Handling – Follow proper fiber optic cable handling and installation practices to ensure reliable operation.
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Cable Quality – Use high-quality multimode fiber optic cables with proper connectors to minimize signal loss, especially for longer runs.
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Diagnostics – Monitor link status, BER, and signal strength periodically to detect degradation before failure. The BER monitoring feature provides early warning of fiber aging.
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Firmware Compatibility – The DS200FCRLG1A is compatible with all Mark V main processor firmware versions.
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Spare Parts Strategy – The DS200FCRLG1A is the preferred replacement for the base DS200FCRLG1 due to its extended distance capability, BER monitoring, and improved reliability. Maintain at least one unit and have spare fiber optic cables and connectors available for critical systems.
Summary
The DS200FCRLG1A is an enhanced fiber optic communication receiver/link board for GE Mark V systems, offering extended distance capability (up to 3 km), improved optical receivers, and advanced diagnostics including bit error rate (BER) monitoring and signal quality indication. It provides noise-immune, long-distance signal reception with dual redundant optical receivers and automatic selection, enabling reliable communication with remote I/O panels, distributed control systems, and field equipment in high-EMI environments. The board integrates seamlessly with DS200CPCAG1A processors and works alongside fiber optic gateway boards including DS200FCGDH1, DS200FCGDH1B, and DS200FCGDH1BAA. This revision is the recommended replacement for the base DS200FCRLG1. Selection requires evaluation of communication distance, fiber infrastructure, redundancy requirements, and diagnostic needs to ensure reliable fiber optic signal reception in critical turbine and compressor applications.

A-B 1756-L62
FOXBORO FBM214B P0927AH
IN PXI-8186
A-B 1771-NIV/B


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