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Core Function and System Role
The GE IS200DSPXH2B performs real-time signal processing for Mark VI systems. Specifically, this board handles fast control loops and data filtering. Moreover, it communicates directly with the main VME backplane. The IS200DSPXH2BEB variant includes extended temperature range components for harsh environments.
Technical Specifications Overview
This DSP control board features a 32-bit floating-point processor. The core runs at 200 MHz for high-speed calculations. Furthermore, the board includes 4 MB of SRAM and 8 MB of flash memory.
| Parameter | Specification |
|---|---|
| Part Number | IS200DSPXH2B / IS200DSPXH2BEB |
| Type | DSP Control Board / Digital Signal Processor |
| Processor | 32-bit Floating-Point DSP |
| Clock Speed | 200 MHz |
| SRAM | 4 MB |
| Flash Memory | 8 MB (16 MB for BEB variant) |
| Analog Inputs | 8 Channels, 16-bit, ±10 Vdc |
| Analog Outputs | 4 Channels, 16-bit, ±10 Vdc |
| Digital I/O | 16 Channels, 5 Vdc TTL |
| Backplane Interface | VME 96-pin Connector |
| Logic Power | 5 Vdc from Backplane |
| Temperature Range | -30°C to +65°C |
| Dimensions (W x H x D) | 233 x 160 x 20 mm |
| Weight | 0.52 kg |
| Onboard Energy Storage | 12 x 100 µF, 16V Capacitors |
Connector Layout and Component Count
The board uses one 96-pin VME connector for backplane communication. For instance, this interface carries data, address, and power lines. Meanwhile, two 50-pin D-sub connectors handle analog and digital I/O. The IS200DSPXH2BEB adds industrial-grade components rated from -40°C to +85°C.
Energy Storage and Processing Stability
This DSP control board includes local decoupling for stable operation. Specifically, twelve 100 µF capacitors filter the 5 Vdc backplane supply. Therefore, the board maintains reliable processing during transient loads. Additionally, onboard LED indicators show power and activity status. For example, a green LED confirms proper logic power. A yellow LED flashes with each DSP instruction cycle.
Diagnostic Features and Self-Testing
The board continuously runs background self-tests on all memory banks. Consequently, it detects ECC errors within one millisecond. Moreover, the GE IS200DSPXH2B IS200DSPXH2BEB includes a hardware watchdog timer. This feature resets the processor if the software execution stops. An onboard status register reports all diagnostic results to the main controller.
Maintenance and Firmware Updates
You can update the board firmware through the VME backplane. Thus, you avoid removing the board for software changes. The board stores its operating code in flash memory. Therefore, firmware persists through power cycles and board replacements.
Industrial Applications
This DSP control board works inside GE Mark VI control cabinets. For reliable GE digital signal processing, the IS200DSPXH2B and IS200DSPXH2BEB deliver exceptional performance. They provide high-speed control calculations for steam and gas turbine systems.