Description
🔹 Product Description
The GE General Electric IS200TSVCH1A, with the extended identification IS200TSVCH1AEC, is a Servo Input/Output Terminal Board used in GE Mark VIe turbine control systems. The TSVC board provides the field-side interface for electro-hydraulic servo valves, LVDT position feedback, and pulse-rate signals. It is designed to work with the PSVO I/O pack and WSVO servo driver and supports simplex, dual, and TMR control architectures. The board provides two servo output channels, LVDT feedback interfaces, and pulse-rate inputs for turbine control applications.
🔹 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | GE General Electric |
| Model | IS200TSVCH1A / IS200TSVCH1AEC |
| Series | Mark VI / Mark VIe |
| Product Name | Servo Input/Output Terminal Board |
| Functional Acronym | TSVC |
| Product Status | New / New Surplus |
| Dimensions | Approx. 33.02 × 17.8 cm |
| Weight | Approx. 0.45–0.96 kg, depending on packaging/configuration |
| Origin | USA |
| Power | 28 VDC nominal system supply |
| Discontinued | Yes, legacy product |
🔹 Common Questions & Answers
Q: What is the IS200TSVCH1A used for?
A: It provides the field-side interface for servo valves and position-feedback signals in GE Mark VIe turbine control systems.
Q: Which I/O pack is compatible with this board?
A: The TSVC terminal board is designed for use with the PSVO I/O pack and WSVO servo driver.
Q: How many servo valves can it interface with?
A: The board provides two bi-directional servo current output channels for servo valve control.
Q: Does it support LVDT feedback?
A: Yes. The board provides LVDT excitation and position-feedback interfaces used for monitoring servo-actuated valve position.
Q: Can it be used in a TMR system?
A: Yes. The IS200TSVCH1A supports simplex, dual, and TMR control configurations.
Q: What type of turbine applications use this board?
A: Typical applications include gas and steam turbine control systems where electro-hydraulic servo valves regulate fuel, steam, or related turbine control mechanisms.
Q: Is IS200TSVCH1AEC a different board?
A: IS200TSVCH1AEC is an extended identification associated with the IS200TSVCH1A assembly. Always match the complete board marking and revision before replacement.
Q: What should be checked before installation?
A: Verify the complete part number, functional revision, terminal wiring, PSVO/WSVO compatibility, jumper settings, power supply, and existing Mark VIe configuration.
🔹 Recommended GE Models
- IS200TSVCH1A — Servo Terminal Board
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- IS200TRTDH1D — RTD Terminal Board
- IS200TBTCH1C — Thermocouple Terminal Board
- IS200TBAIH1C — Analog Terminal Board
- IS200TBAOH1D — Analog Output Terminal Board
- IS200TBQBG1A — Discrete Terminal Board
- IS200STCIH6A — Contact Input Terminal Board
- IS200STAIH2A — Simplex Analog Input Terminal Board
- IS200SSCAH2A — Serial Communication Terminal Board
- IS210WSVOH1A — WSVO Servo Driver Assembly
- IS220PSVOH1B — Servo I/O Module
- IS220PTURH1B — Turbine I/O Module
- IS220PTCCH1A — Thermocouple Input Module
- IS220PRTDH1A — RTD Input Module



