Product Core Brief
- Part Number: DS200SI0CG1AEA
- Brand: GE (GE Energy / GE Digital / GE Industrial Systems)
- Series: GE Speedtronic Mark V / DS200
- Core Function: RST analog I/O (TCQA) board that scales and conditions analog signals read by terminal boards on Mark V I/O cores R1, R2, and R3.
- Product Type: Mark V RST Analog I/O (TCQA) Board
- Key Specs: TCQA function | LVDT, servo valve, thermocouple, 4–20 mA, vibration, pulse, voltage, relay driver, generator/line signal conditioning | 3PL, JE, JF, JG, JA, JB, JD connectors | legacy/obsolete product
- Condition: New Original / New Surplus
Product Introduction
GE DS200SI0CG1AEA is an RST analog I/O board for the GE Speedtronic Mark V control system family. It functions as a TCQA-type analog I/O board used in gas turbine control applications, scaling and conditioning analog signals read by terminal boards installed on I/O cores R1, R2, and R3.
The board handles multiple signal types including LVDT inputs, servo valve outputs, thermocouple inputs, 4–20 mA inputs and outputs, vibration inputs, relay driver outputs, pulse inputs, voltage inputs, and generator/line signals. Conditioned signals are transferred to the STCA board via the 3PL connector for COREBUS communication.
Documented connector functions include:
- 3PL: Data bus connecting STCA, TCQA, and TCQE boards in the core; conditioned signals pass through 3PL to COREBUS.
- JE: Sends/receives pulse signals, generator and line signals, relay driver outputs, and servo valve driver outputs to/from the TCQC board; carries power monitor inputs.
- JF: Receives LVDT/LVDR position inputs from TBQC terminal board connector JFR.
- JG: Carries ±10 VDC inputs and vibration inputs from TBQB terminal board connector JGR.
- JA: Carries thermocouple inputs and cold-junction compensation from TBQA board connectors JAR/S/T.
- JB: Transmits 4–20 mA inputs and outputs to/from TBQC terminal board connector JBR.
- JD: Sends trip signals from the core to the TCTG board; not used in certain configurations.
Power to TCPS boards is distributed through the 2PL connector to the core.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (GE Energy / GE Digital / GE Industrial Systems) |
| Part Number | |
| Product Type | RST Analog I/O Board (TCQA) |
| Series | GE Speedtronic Mark V / DS200 |
| Typical Application | Gas turbine control, analog signal conditioning for R1/R2/R3 cores |
| Signal Types | LVDT, servo valve, thermocouple, 4–20 mA, vibration, pulse, voltage, relay driver, generator/line |
| Key Connectors | 3PL, JE, JF, JG, JA, JB, JD, 2PL |
| Related Boards | STCA, TCQC, TCQE, TCTG, TBQA, TBQB, TBQC |
| Status | Legacy / Obsolete |
Note: The TCQA function, signal types, and connector descriptions are documented for the DS200SI0CG1AEA / DS200SIOCG1A family. The exact connector layout, jumper map, LED indicators, board revision, and AEA-specific configuration should be verified from the physical board label and GE Mark V manuals.
Quality Control Process (DYNAMIC GENERATION)
- Visual and label inspection. We check the part number, suffix, PCB surface, connectors, ICs, and mounting hardware for damage or corrosion.
- TCQA function verification. We confirm the board matches the DS200SI0CG1AEA TCQA analog I/O description and is not mislabeled as a different I/O type.
- Connector and continuity check. All board connectors (3PL, JE, JF, JG, JA, JB, JD, 2PL) are verified for correct pin continuity and no short circuits.
- Signal path inspection. LVDT, servo, thermocouple, 4–20 mA, and vibration signal paths are inspected for visible damage or thermal stress.
- Final packaging. After passing inspection, the board is anti-static bagged and foam-packed for shipment.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Confirm TCQA function before installation. DS200SI0CG1AEA is a TCQA-type analog I/O board; do not substitute it with TCQC, STCA, TCQE, or generic I/O boards.
❗ Label all connectors before removal. The board interfaces with multiple terminal boards and core boards; miswiring can cause incorrect signal conditioning or turbine trips.
❗ Record jumper and connector positions before removal. Document all jumper settings, connector labels, and board orientation for troubleshooting reference.
❗ Verify core compatibility. Confirm the board is used in the correct R1/R2/R3 I/O core before replacement.
❗ Check terminal board pairing. The TCQA board works with TBQA, TBQB, and TBQC terminal boards; verify terminal board compatibility.
❗ Observe ESD safety. The board contains sensitive analog conditioning circuitry; always use anti-static wrist straps and handling procedures.
❗ Handle as ESD-sensitive equipment. Always use anti-static wrist straps and handling procedures during removal, installation, and storage.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE | GE | Direct | Same part number; verify connector layout and core assignment. |
| GE | GE DS200SIOCG1A variants | Needs Adaptation | Same TCQA family; suffix differences may affect revision or configuration. |
| GE | GE DS200TCQA variants | Needs Adaptation | Same TCQA function; verify connector layout and core compatibility. |
| GE | GE DS200TCQC variants | Not Compatible | TCQC handles generator/line signals differently; not a direct replacement. |
| GE | Mark VIe / IS200/IS220 modules | Not Compatible | Different platform and architecture; not a direct replacement. |
Benchmark highlights
- GE Speedtronic Mark V RST analog I/O (TCQA) board.
- Scales and conditions analog signals for I/O cores R1, R2, and R3.
- Handles LVDT, servo valve, thermocouple, 4–20 mA, vibration, pulse, voltage, relay driver, and generator/line signals.
- Interfaces with STCA via 3PL, TCQC via JE, and terminal boards TBQA/TBQB/TBQC.
- Legacy product; best suited for existing Mark V gas turbine control system maintenance and like-for-like replacement.
