GE IS200DSPXH2D IS200DSPXH2DBD

Core Function and System Role

The GE IS200DSPXH2D 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 IS200DSPXH2DBD 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	IS200DSPXH2D / IS200DSPXH2DBD
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 DBD 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 IS200DSPXH2DBD 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 IS200DSPXH2D IS200DSPXH2DBD 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 IS200DSPXH2D and IS200DSPXH2DBD deliver exceptional performance. They provide high-speed control calculations for steam and gas turbine systems.