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The GE DS200DDTBG2A DS200DDTBG2ABB LCI auxiliary I/O terminal board expands input and output capacity for GE Mark V systems. This board connects field devices to the main LCI controller. You will find this terminal board in drive cabinets and turbine control panels. Its screw-type terminals provide reliable field wiring connections.
Board Function and I/O Architecture
This auxiliary I/O board supports sixteen discrete input channels. Consequently, it accepts signals from limit switches, push buttons, and sensors. The GE DS200DDTBG2A DS200DDTBG2ABB also provides sixteen discrete output channels. Moreover, each output channel includes an LED status indicator. You can monitor field device states directly from the board.
Technical Specifications
| Parameter | Value |
|---|---|
| Input Channels | 16, 24V DC sink/source |
| Output Channels | 16, 24V DC, 0.5A per channel |
| Input Voltage Range | 10-30V DC (24V DC nominal) |
| Output Voltage | 24V DC (same as supply) |
| Response Time | 1 ms typical (inputs and outputs) |
| Dimensions | 260mm x 180mm x 40mm |
| Weight | 0.85 kg (1.87 lbs) |
| PCB Layers | 4 |
| Onboard Components | 32 optocouplers, 16 relays, 32 LEDs |
| Connector Count | 3 (ribbon cable to controller, field I/O terminal blocks) |
| Terminal Type | Screw clamp, 12-22 AWG |
| Status Indicators | 32 LEDs (16 input, 16 output status) |
| Energy Storage | 1000 µF (input filtering capacitance) |
| Isolation Voltage | 1500V (field side to logic side) |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
Signal Isolation and Status Monitoring
The unit includes thirty-two optocouplers for channel isolation. Therefore, each input and output operates independently without crosstalk. This board replaces the DS200DDTBG2ABB version without any wiring changes. Simply disconnect the ribbon cable and terminal connections. GE designed this board for easy field replacement. Hence, you can swap it without reprogramming the main controller.
Four PCB layers separate field wiring from logic circuits effectively. Three connectors handle all signals between the board and controller. The GE DS200DDTBG2A DS200DDTBG2ABB also includes 1000 µF of input filtering capacitance. Accordingly, it rejects high-frequency noise from field wiring. This feature ensures reliable signal detection in industrial environments.
Installation and Field Wiring Guide
You can mount this terminal board on a DIN rail or backplate. Screw terminals accept wire sizes from 12 to 22 AWG. The GE DS200DDTBG2A DS200DDTBG2ABB requires a 24V DC external power supply. Always use shielded cable for input wiring longer than 30 meters. Thirty-two LEDs provide immediate visual feedback for every channel.
Each output channel can switch up to 0.5A continuously. The GE DS200DDTBG2A DS200DDTBG2ABB works with inductive loads like relays and solenoids. Always install flyback diodes across inductive loads. Proper strain relief on terminal blocks prevents wire breakage. This board operates reliably in non-condensing environments only.