GE DS3800HIOB I/O Interface Board

GE DS3800HIOB Full Product Specification
Basic Product Information
Brand: General Electric (GE)
Model / Order Part No.: DS3800HIOB
Product Name: Mark IV Speedtronic Turbine Main I/O Interface Board
Place of Origin: United States
HS Code: 8538909200
Compatible System: GE Speedtronic Mark IV Gas / Steam Turbine Control System
Mounting: Large-format rack plug-in circuit board, IP20 cabinet internal use

Physical Specifications
Overall Dimension: 420 mm (L) × 280 mm (W) × 25 mm (Thickness)
Net Weight: 1.15 KG
Board Material: Multi-layer industrial control PCB with conformal coating
Connectors: Multi-pin Augat edge connectors for rack backplane and field cable wiring
Adjustment Components: DIP configuration switches, signal trimming potentiometers
Status Indicator: Per-channel SMD LED input/output status lights
Electrical Input Specifications
1. Rack Logic Power Input: ±15 VDC, +5 VDC dual power supply from rack backplane
2. Field Analog Input Support: 4–20mA, 0–10VDC, magnetic pickup AC sine wave speed signal
3. Digital Discrete Input: 120VAC / 24VDC dry contact emergency stop and limit switch signals
4. Operating EnvironmentWorking Temperature: 0°C ~ +65°C
Storage Temperature: -40°C ~ +85°C
Humidity: 5%–95% non-condensing
5. Isolation Design: Optical isolation between field digital input and internal control circuit
Signal & Drive Output Interfaces
1. Analog Actuator Drive Output: 0–20mA proportional current signal for fuel hydraulic valves
2. Digital Relay Contact Output: Multi-channel Form C relay contacts for alarm, trip and auxiliary interlock
3. Mark IV Internal Bus Output: Parallel rack bus signal exchange with main turbine CPU board
4. Channel Diagnostic LED Output: Visual real-time feedback of input signal presence and output drive status
5. Trimming Calibration Output: Adjustable reference signal for on-site analog channel precision correction
Core Technical Parameters
Supported Signal Types: AC speed pickup, RTD temperature, 4–20mA analog, AC/DC discrete contact
Channel Configurability: DIP switch adjustable signal range and input type
On-board Adjustment: Trimming resistors for analog zero and span calibration
Protection: Input overvoltage transient suppression diode, output relay surge absorption circuit
System Compatibility: Full matching all GE Mark IV DS3800 series rack power and CPU boards