Digital guide
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GE DS3800HAIC1B1A
Product Name: Mark II/III Host Communication Adapter Card
Introduction: Legacy serial gateway letting a GE Mark I/II/III turbine controller talk to plant DCS/SCADA via RS-232/485.
Technical Specifications:
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Interfaces: 1 × RS-232 (config), 1 × RS-485 (Modbus RTU/ASCII)
Detailed content
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Baud Rate: 300–115.2 kbps software selectable
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Protocol: Modbus RTU, Modbus ASCII, GE proprietary point-to-point
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Bus: Mark III backplane, through-hole D-sub connectors
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Temperature: 0–60 °C (control-room class)
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Construction: FR-4 2-layer PCB, gold edge fingers, aluminum RF shield
Functional Features: On-board UART buffer, jumper-selectable node address, watchdog reset.
Application Scenarios: Retrofit comms for vintage gas turbines, historian polling, HMI linkage in older combined-cycle plants.
Notes: Static-sensitive; not for direct field-terminal wiring—always land field serial on isolated converter.
