Description
The GE General Electric DS200TCQCG1A, also identified by the extended number DS200TCQCG1AHE, is an RST Overflow Board / Analog I/O Expander Board designed for the GE Mark V Speedtronic turbine control system. The TCQC board expands and processes analog I/O signals for the R, S, and T control cores. It supports signal conditioning and scaling for mA and pulse-rate inputs, provides LVDT/LVDR excitation, and interfaces with other Mark V boards through high-density connectors. The board includes 24 configuration jumpers, three 40-pin connectors, three 34-pin connectors, and one 16-pin connector. It is commonly associated with Mark V gas turbine control applications.
| Parameter | Specification |
|---|---|
| Brand | GE General Electric |
| Model | DS200TCQCG1A |
| Full Part Number | DS200TCQCG1AHE |
| Series | Mark V Speedtronic |
| Product Name | RST Overflow Board / Analog I/O Expander Board |
| Functional Acronym | TCQC |
| Functional Revision | A |
| PCB Coating | Normal Coating |
| Connectors | 3 × 40-pin, 3 × 34-pin, 1 × 16-pin |
| Configuration Jumpers | 24 |
| Product Status | Open Box – Unused |
| Place of Manufacture | USA |
| Discontinued | Legacy / no longer in standard production |
Key Features
• Designed for GE Mark V turbine control systems
• Functions as an RST Overflow / Analog I/O Expander Board
• Supports analog signal scaling and conditioning
• Handles mA current-loop and pulse-rate signal processing
• Provides LVDT/LVDR excitation for turbine control feedback applications
• Interfaces with related TCQA and TCQB boards
• Provides high-density board-to-board connections through multiple connectors
• Includes 24 hardware jumpers for application-specific configuration
• Used in gas, steam, and other turbine control applications supported by the Mark V platform
Common Questions & Answers
Q: What is the DS200TCQCG1A used for?
A: It is an RST Overflow Board and Analog I/O Expander used in GE Mark V turbine control systems for additional analog signal processing and interface functions.
Q: What does RST mean in this application?
A: RST refers to the R, S, and T control cores used in the Mark V turbine control architecture.
Q: How many jumpers are on the board?
A: The DS200TCQCG1A has 24 hardware configuration jumpers. Jumper positions should be matched to the original board and application configuration.
Q: Which boards are associated with the TCQC?
A: Published technical information identifies the TCQA and TCQB boards as required companion boards for proper TCQC operation in the applicable Mark V configuration.
Q: Does the board support LVDT applications?
A: Yes. The TCQC provides excitation associated with LVDT/LVDR feedback applications in the Mark V system.
Q: Is DS200TCQCG1AHE a different board?
A: It is an extended part-number designation associated with the DS200TCQCG1A assembly. Always compare the complete board number, revision, jumper configuration, and connector layout before replacement.
Q: What does Open Box mean for this listing?
A: The listed unit is open box and unused. Packaging may have been opened for inspection or storage purposes.
Safety & Troubleshooting
• Isolate and lock out the turbine control system before removing or installing the board.
• Record the jumper positions on the existing board before replacement.
• Verify every connector position and cable orientation before energizing the system.
• For abnormal analog readings, check the associated terminal board, signal wiring, scaling configuration, and TCQA/TCQB interfaces.
• For LVDT-related faults, inspect excitation wiring, sensor connections, and feedback signals.
• Do not change hardware jumpers while the control system is energized.
• Confirm the complete part number and revision before replacing a board in a safety- or control-critical application.
Recommended GE Models
- DS200TCQAG1A — Analog I/O Board
- DS200TCQAG1B — Mark V Analog I/O Board
- DS200TCQBG1A — RST Analog Extender Board
- DS200TCQBG1B — Extended Analog I/O Board
- DS200TCQBG1BBA — RST Overflow Card
- DS200TCQBG2A — Extended Analog Board
- DS200TCQBG2AEB — RST Extended Analog I/O Board
- DS200TCQCG1B — RST Overflow Board
- DS200TCQCG1BBA — Analog I/O Expander Board
- DS200TCQCG1BHF — Mark V Analog I/O Expander Board
- DS200TCQCG1BJF — RST Overflow Board
- DS200TCQCG1BKG — RST Overflow Board
- DS200TCQEG1A — LM6000 I/O Processor Board
- DS200STCAH2A — Mark V Signal Conditioning Board
- DS200TBQCG1A — Mark V Terminal Board
