Description
The GE IS200TDBTH2A (often found as IS200TDBTH2ABC) is a Discrete Terminal Board (TDBT) designed for use within the GE Mark VI control system. This board serves as an essential bridge between the high-density digital I/O modules and the field wiring of the turbine or compressor control system. It facilitates the termination of digital inputs and outputs, providing necessary signal conditioning, transient suppression, and isolation to protect the delicate control electronics from harsh field environments.
📋 Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Discrete Terminal Board (TDBT) |
| Model Number | IS200TDBTH2A (IS200TDBTH2ABC) |
| Board Type | Discrete I/O Terminal Board |
| Core Function | Termination and conditioning of digital signals |
| System Compatibility | GE Mark VI Control System |
| Input/Output | Supports multiple digital points (contacts/logic) |
| Protection | On-board surge suppression and signal isolation |
| Mounting Style | Cabinet-mounted terminal assembly |
| Compatibility | Mates with DTBA or DTBD I/O packs |
| Dimensions | Standard Mark VI board footprint |
🚀 Recommended Series Models & Integration
The TDBT board is typically paired with specific I/O packs and mounting hardware to complete the Mark VI signal path:
- IS200DTBAH1A – Digital Terminal Board (Alternative)
- IS200DTBDH1A – Digital Terminal Board (High-density)
- IS220PDIAH1A – Discrete I/O Pack (Mates with TDBT)
- IS220PDOAH1A – Digital Output Pack
- IS200TRLYH1A – Relay Output Terminal Board
- IS200STAIH1A – Analog Input Terminal Board
- IS200TBCIH1A – Contact Input Terminal Board
- IS410KNWEH1A – Mark VIe Network Switch
- IS200PSVOH1A – Servo Valve Control Board
- IS200VPROH1A – VPRO Processor Board
⚠️ Integration & Maintenance Note
The “H2A” suffix indicates the specific hardware revision. When replacing or commissioning this board, ensure that the I/O Pack (e.g., PDIA) that connects to the TDBT board is configured correctly in the Mark VI Toolbox software. A mismatch between the terminal board hardware revision and the I/O pack configuration can result in “I/O Communication Loss” or incorrect discrete state detection.
