GE DS200TBQDG1AFF TBQD RST Extended Digital Terminal Board

Technical Specifications

Model: DS200TBQDG1AFF

Brand: GE (GE Vernova)

Product Type: TBQD RST Extended Digital Terminal Board

Applicable System: Speedtronic Mark V gas & steam turbine control system

Signal Type: Discrete digital signal, support 24VDC,125VDC field circuit

Connector: High‑density terminal blocks, two 50‑pin ribbon connectors, configurable jumpers

Isolation: Optical isolation for digital input, suppress field surge noise

Indicator: Channel LED status indicator for troubleshooting

Power: Rack backplane control power supply

Operating Temperature:‑30℃ ~ +65℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20, cabinet‑mount only

Weight:0.48kg

Dimension:242mm ×191mm ×31mm

Application: Power plant turbine generator control cabinet

Product Function Description

DS200TBQDG1AFF TBQD terminal board is dedicated RST extension board for Mark V turbine system. It acts as wiring hub between field discrete devices and main I/O pack, collects signals from limit switches, valve position feedback and relay contacts, performs optical isolation and signal conditioning before sending data to controller.

On‑board jumpers adjust hardware configuration, channel LED gives direct status feedback during commissioning. AFF revision optimizes isolation circuit to eliminate ground loop and voltage surge, protecting main processor and ensuring stable transmission of unit interlock and protection signals.

Product Details

Rack‑mount PCB fits in Mark V I/O cabinet slot and must work with matched digital I/O control board. Conformal coating resists dust, moisture and electromagnetic interference for long‑term power‑plant service. Widely used for unit maintenance and spare‑part replacement. Please verify hardware revision before installation for system compatibility。