Description
🔹 Product Description
The GE IS200STTCH2A, also identified as IS200STTCH2ABA, is a Simplex Thermocouple Input Terminal Board used in GE Mark VI turbine control systems. The STTC provides the field termination and signal-conditioning interface for thermocouple temperature measurements and can interface with the VTCC thermocouple processor in Mark VI systems or the PTCC processor in Mark VIe applications. The board supports up to 12 thermocouple inputs and includes cold-junction reference circuitry for temperature measurement.
The board is designed for DIN-rail mounting and provides a compact field-wiring interface. GE documentation indicates that there are no jumpers or hardware settings on the terminal board. Its terminal-board identification device allows the connected I/O processor to verify the board type, revision, serial number, and connector location.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200STTCH2A / IS200STTCH2ABA |
| Series | Mark VI / Mark VIe |
| Product Name | Simplex Thermocouple Input Terminal Board |
| Functional Acronym | STTC |
| Board Type | Thermocouple Input / Terminal Board |
| Thermocouple Channels | 12 |
| Compatible Processor | VTCC / PTCC |
| Mounting | DIN Rail |
| Place of Manufacture | USA |
| Product Status | Legacy / Replacement Spare |
| Original Country | United States |
| Power | Supplied through the connected I/O interface |
| Configuration | No jumpers or hardware settings |
| Discontinued | Legacy Mark VI component |
⚙️ Main Functions
• Provides field termination for thermocouple sensors
• Supports up to 12 thermocouple input channels
• Provides onboard thermocouple signal conditioning
• Provides cold-junction reference compensation
• Interfaces with VTCC or PTCC thermocouple processing hardware
• Uses a board identification device for automatic hardware identification
• Supports DIN-rail installation inside the control cabinet
• Provides open-circuit detection through the connected I/O processor
• Designed for turbine temperature monitoring applications
❓ Q&A
Q: What is the IS200STTCH2A?
A: It is a GE STTC Simplex Thermocouple Input Terminal Board for the Mark VI/Mark VIe control architecture.
Q: How many thermocouple inputs are available?
A: The STTC terminal board supports up to 12 thermocouple signals.
Q: What type of thermocouples can it support?
A: Available technical documentation identifies support for common thermocouple types including E, J, K, S, and T, with the exact supported range depending on the associated processing hardware and system configuration.
Q: Does the board require jumper configuration?
A: No. GE documentation states that the terminal board has no jumpers or hardware settings.
Q: What processor does the STTC connect to?
A: The board can interface with the VTCC thermocouple processor in Mark VI systems and PTCC thermocouple processing hardware in Mark VIe applications.
Q: What should be checked before replacement?
A: Verify the complete part number, board revision, terminal arrangement, connected VTCC/PTCC hardware, thermocouple wiring, and existing Mark VI/Mark VIe configuration before installation.
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