GE DS3800HCMC

Technical Specifications

• Product Type: High-Current Multiplexer Controller Board

• Part Number: DS3800HCMC

• Manufacturer: General Electric (GE)

• System Compatibility: GE Speedtronic Mark IV Turbine Control Systems

• Control Channels: Up to 64 multiplexer channels (expandable)

• Scan Control: Sequential, skip, or programmable priority scan

• Scan Speed: 100 to 1000 channels per second (jumper-selectable)

• Synchronization: External trigger input for synchronized scanning

• Output: Channel address and control signals to multiplexer boards

• Diagnostics: Individual channel fault detection and reporting

• Isolation: 1500Vrms opto-isolation (control-to-logic)

• Temperature Range: 0°C to +60°C

• MTBF: > 150,000 hours (MIL-HDBK-217F)

Key Features & Advantages

• Centralized Control: The GE DS3800HCMC manages all multiplexer boards in the system, ensuring synchronized scanning.

• Flexible Scan Modes: Sequential, skip, or priority scan modes.

• Adjustable Speed: Scan speed from 100 to 1000 channels per second.

• External Trigger: Allows synchronized scanning with external events.

• Diagnostic LEDs: Front-panel LEDs indicate scan status and fault conditions.

Typical Application Cases

• Multi-Board Multiplexing: Coordinates scanning across multiple multiplexer boards.

• Synchronized Data Acquisition: Synchronizes analog scanning with external events.

• Priority Scanning: Allocates more scan time to critical channels.

Competitive Comparison

The GE DS3800HCMC is the only Mark IV board for centralized multiplexer control.

Selection Guidelines & Precautions

1. Scan Speed: Configure scan speed to match your application’s requirements.

2. Synchronization: Use external trigger for synchronized scanning with other systems.

3. Wiring: Use shielded cables for trigger inputs.

4. ESD Handling: Use ESD-safe practices.

5. Sourcing: Obsolete. Request functional test report.

6. Spare Strategy: Keep one spare GE DS3800HCMC on-site for critical multiplexer systems.