GE DS200DDTBG2A High-Speed Auxiliary I/O Terminal Board

Overview

The GE DS200DDTBG2A is a high-speed auxiliary I/O terminal board for LS2100 and Mark V LM systems. It manages digital inputs, analog outputs, and relay signals for turbine and industrial drive applications. The board interfaces with the DS200ADMA analog-to-digital module via a 50-pin ribbon cable. It supports solenoids, contactors, and high-speed field devices, ensuring reliable signal processing in harsh industrial environments. The DS200DDTBG2A improves system response time and enables accurate monitoring for Load Commutated Inverter (LCI) applications.

Technical Specifications

Electrical Characteristics

• Power Supply: 24 VDC (18–32 V range) via backplane
• Power Consumption: < 8 W
• Analog Outputs: 4 channels, 0–10 VDC, 12-bit resolution (TP14–TP17)
• Digital Inputs: 8 channels, optically isolated, 24 VDC, ≤2 ms filtering (TP17–TP25)
• Relay Outputs: 16 Form-C relays, rated 2 A @ 240 VAC or 10 A @ 30 VDC
• Isolated Status Outputs: 4 channels, 48 VDC / 10 mA
• LED Indicators: Real-time channel and relay status

Physical & Diagnostic Features

• Test Points: 33 TP locations for voltage and continuity checks
• Jumpers: 12 sets for signal type, filter time, and address selection
• Surge Protection: 8 MOVs up to 8 kV
• Isolation: 2 miniature transformers for auxiliary power
• Signal Conditioning: 14 high-speed transistors and 15 resistor networks

Environmental Ratings

• Operating Temperature: –40°C to +85°C
• Humidity: Industrial-grade conformal coating, passed 1000-hour salt spray
• MTBF: > 250,000 hours

Dimensions & Mounting

• Size: 159 mm × 127 mm × 25 mm
• Form Factor: 6U single-slot board
• Weight: 0.6 kg
• Mounting: Panel or rack-mounted