GE DS200TCDAG1B DS200TCDAG1BDB Digital I/O Board

Key Technical Specifications

This GE DS200TCDAG1B DS200TCDAG1BDB board operates from a 24V DC power supply. It provides 32 digital I/O channels for turbine control systems. The unit measures 23 cm in length, 17 cm in width, and 4.5 cm in height. Its total weight reaches 0.75 kg without any packaging materials.

The GE DS200TCDAG1B DS200TCDAG1BDB includes 16 digital inputs and 16 digital outputs. Additionally, it features one backplane connector for host communication. A single 6-pin terminal block connects the DC power input. The board contains 1 FPGA, 16 optocouplers, 16 relay drivers, 16 status LEDs, 24 resistors, and 18 capacitors.

Parameter	Value
Power Supply	24V DC ±10%, 350mA
Digital Inputs	16 channels (24V, sinking)
Digital Outputs	16 channels (24V, 0.5A each)
Dimensions (L x W x H)	23 cm x 17 cm x 4.5 cm
Weight	0.75 kg
Input Response Time	< 1 ms
Output Switching Time	< 2 ms
Backplane Interface	50-pin DIN
Power Connector	6-pin terminal block
Field Connector	2x 25-pin D-sub
FPGA	1 unit
Optocouplers	16 units (input isolation)
Relay Drivers	16 units
Status LEDs	16 units (8 green, 8 yellow)
Resistors	24 units
Capacitors	18 units
Energy Storage	220 µF at 35V

GE DS200TCDAG1B DS200TCDAG1BDB stores energy using two electrolytic capacitors. Together, they provide 220 µF at 35V rating for output hold-up. This energy storage maintains digital outputs during 25 millisecond power interruptions. Therefore, the board prevents false switching in turbine control environments.

Design and Integration

Both the GE DS200TCDAG1B and DS200TCDAG1BDB versions share identical digital I/O circuitry. These boards use six-layer PCB construction with isolated I/O banks for noise immunity. Consequently, the GE DS200TCDAG1B DS200TCDAG1BDB operates reliably from -15°C to +60°C ambient temperature.

For installation, you need M3 screws for the four mounting holes. The board draws 300 mA typical current from the 24V DC supply. Each digital output includes overcurrent protection for field devices. We recommend using separate cable trays for input and output wiring.

Practical Application

This digital I/O board manages digital field signals for turbine control systems. It reads limit switches, push buttons, and relay status continuously. The GE DS200TCDAG1B DS200TCDAG1BDB then sends output commands to solenoids, contactors, and indicator lamps. Therefore, it provides reliable digital I/O for GE turbine control panels.