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GE DS3820MAUD1A1A
Product Name: GE Speedtronic Mark V / Mark VI Mixed Analog & Digital I/O Module (MAUD)
Product Introduction: The GE DS3820MAUD1A1A is a hybrid I/O board developed by General Electric for the Speedtronic Mark V and Mark VI turbine control platforms. It acquires analog process signals and handles discrete logic for gas turbine, steam turbine, and generator auxiliary systems.
Detailed content
Technical Specifications:
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Analog Inputs: 4 channels, 4–20 mA / 0–10 V, 16-bit ADC, ±0.15% FS accuracy
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Digital Inputs: 8 channels, 24 V DC wet/dry contact
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Digital Outputs: 4 channels, relay output, 5 A @ 250 V AC
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Sampling: 10 ms per channel
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Backplane Bus: Genius Bus (Mark V) / Series One (Mark VI)
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Power: +5 V DC from backplane, ≤5 W
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Operating Temp: 0 °C to +60 °CFunctional Features: Combined AI/DI/DO on one PMC-style card; wire-break detection on analog; signal linearization; front-panel LEDs for AI/DI/DO/bus/fault; supports redundant pairing.Materials & Structure: 4-layer FR-4 glass-epoxy PCB; zinc-plated steel EMI shield; gold-plated military-style backplane pins; sealed latching relays.Working Principle: Field analog signals pass through burden resistors and 16-bit ADC; digital inputs are optically isolated; relay drivers close contacts on logic command from the controller.Installation Requirements: Insert into designated Mark V/VME or Mark VI I/O slot; align guide rails; seat backplane connector fully before tightening extractor levers.Precautions: Never hot-swap with backplane energized; verify jumper for 4–20 mA vs 0–10 V before wiring; do not exceed 5 A relay load.
