Description
Technical Parameters & Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Series | Mark V Speedtronic |
| Full Model | DS200GSIAG1 |
| Board Type | General Purpose Serial Interface / Annunciator Gateway Board |
| Serial Ports | 4 configurable serial ports (RS-232/RS-422/RS-485) |
| Digital Inputs | 8 optically isolated digital inputs (24-250V DC/AC) for alarm acknowledgment |
| Digital Outputs | 8 optically isolated digital outputs (24-250V DC/AC) for annunciator drivers |
| VME Interface | VME backplane (parallel data transfer) |
| Communication Protocol | Modbus RTU, DNP3, GE proprietary protocols |
| Data Rate | Up to 115.2 kbps (per port) |
| Diagnostics | Link status, communication health, input/output status |
| Diagnostic LEDs | Board status, fault, communication active, input/output status |
| Operating Temp | -30°C to +65°C |
| Protection | Conformal coating + gold-plated edge connectors |
| Physical Dimensions | 6U VME format (233mm × 160mm) |
| MTBF | > 100,000 hours |
Core Advantages & Key Features
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Multi‑Port Serial Interface – The DS200GSIAG1 provides four configurable serial ports, enabling simultaneous communication with multiple serial devices such as protection relays, PLCs, and operator terminals.
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Annunciator Interface – Supports connection to annunciator panels for audible and visual alarm indication, with acknowledgment inputs for operator response.
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Configurable Serial Ports – Each serial port can be independently configured for RS-232, RS-422, or RS-485 operation via software.
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Protocol Support – Supports Modbus RTU, DNP3, and GE proprietary protocols for flexible integration with a wide range of devices.
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Alarm Management – Integrated annunciator functionality with alarm prioritization, acknowledgment, and logging.
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Digital I/O for Annunciation – 8 digital inputs for alarm acknowledgment and 8 digital outputs for driving annunciator lamps or horns.
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Electrical Isolation – 2500 VAC isolation between field signals and logic ensures operator and processor safety.
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Robust Environmental Protection – Conformal coating and gold-plated edge connectors ensure reliable operation.
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Plug-and-Play Compatibility – Integrates with DS200CPCAG1A processors and other Mark V boards.
Typical Applications
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Serial Device Integration – Connects Mark V system to serial devices such as protection relays, PLCs, and remote terminal units.
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Annunciator Panels – Drives alarm annunciation panels for visual and audible alerts.
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Data Acquisition – Collects data from serial field devices for monitoring and control.
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Alarm Management – Manages alarm prioritization, acknowledgment, and logging.
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Legacy System Integration – Interfaces with legacy serial devices in existing installations.
Comparison: DS200GSIAG1 vs. Standard Serial Communication Boards
| Feature | DS200GSIAG1 | Standard Serial Communication Board |
|---|---|---|
| Primary Function | Serial interface + annunciator | Serial communication only |
| Serial Ports | 4 (configurable) | 2-4 |
| Protocol Support | Modbus RTU, DNP3, GE proprietary | Modbus RTU only |
| Annunciator I/O | 8 inputs + 8 outputs | None |
| Alarm Management | Yes | No |
| Isolation Voltage | 2500 VAC | Varies |
Selection Guidelines & Precautions
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Verify Serial Requirements – Ensure the board supports the required number of ports, interface types (RS-232/RS-422/RS-485), and protocols (Modbus RTU, DNP3, or GE proprietary).
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Check Annunciator Needs – Ensure the board has sufficient digital I/O for annunciator panel connection.
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Proper Wiring – Follow all safety practices and local codes.
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Firmware Compatibility – Compatible with DS200CPCAG1A and other Mark V processors.
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Spare Parts Strategy – Maintain spares for critical serial interface and annunciation applications.
Summary
The DS200GSIAG1 is a general purpose serial interface and annunciator gateway board for GE Mark V systems, providing four configurable serial ports, annunciator I/O, and alarm management functionality. It enables serial communication with external devices and integrated alarm annunciation. The board integrates with DS200CPCAG1A processors. Selection requires evaluation of serial port requirements, protocol support, and annunciator needs.

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