I/O modules

This DOS DUP processor board provides redundant processing for critical turbine control functions. It executes governor logic and protection algorithms in GE Mark V systems. You will find this board in high-availability applications for power generation.

Key Technical Specifications

Physical Layout and Rack Mounting

This processor board measures 300 mm in width and 200 mm in height. Its depth reaches 35 mm for standard Mark V racks. The unit weighs 1.3 kilograms due to the dual processors and heat sinks. Two edge connectors plug directly into the backplane for power and signals.

Internal Architecture and Energy Storage

Three hundred twenty-four components populate this high-density processor board. Six 1000 µF capacitors create a 6000 µF total energy storage bank. This bank provides clean power to both DSPs and memory circuits. Consequently, the board executes control loops without processor resets. Two 32-bit DSPs run at 60 MHz in hot-standby configuration.

Redundancy Operation and Failover

The primary processor handles all turbine control and monitoring functions. The secondary processor runs in lockstep and shadows all critical data. Upon detecting a primary fault, the standby takes over within 5 milliseconds. This automatic failover prevents turbine trips during processor hardware failures. Both processors share access to all I/O through the backplane.

Communication and Memory Resources

Two Genius LAN ports provide redundant communication with I/O modules. An RS-232 port connects to a laptop for diagnostics and tuning. The board holds 512 KB of RAM for real-time data and control tables. One megabyte of Flash stores application code and configuration parameters. Green LEDs indicate active processor status and communication activity.

Compatibility Note

Both DS200DMCBG2A DS200DMCBG2AKG share identical electrical and software specifications. The AKG suffix indicates a later hardware revision with enhanced thermal performance. You can use either version interchangeably in any Mark V redundant system.

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