IS200TBAIH1C — GE Speedtronic Mark VI Terminal Board

The IS200TBAIH1C is a terminal board from GE's Speedtronic Mark VI turbine control system, belonging to the IS200 board family. It is a TBAI-type module — a rack-mounted terminal board that provides the field-wiring termination and interface for analogue input signals within the turbine control cabinet.

The Mark VI platform is one of GE's turbine control systems, used to govern gas and steam turbines in power generation and industrial drive applications. In the Mark VI/VIe architecture, IS200 terminal boards provide the physical connection point for field cabling and interface the control system's input/output signals, often pairing with the associated I/O pack. The IS200TBAIH1C carries the "H1" board designation and a "C" revision suffix — note that this part number uses a single-letter revision suffix, which is normal for IS200 boards. The "AI" component of the designation is associated with analogue input signal handling.

Key Specifications

Important: Channel count, input range (e.g. 4–20 mA / voltage), voltage ratings, dimensions, and connector details for the IS200TBAIH1C are not consistently documented across public sources. Please confirm these against the board label, GE documentation, or your system manual before ordering, and verify the correct paired I/O pack where applicable.

Product Functions

• Analogue input termination: Provides the field-wiring termination point for analogue input signals connected to the turbine control system.
• Signal interfacing: Routes analogue field signals from instrumentation into the Mark VI/VIe system for processing and monitoring.
• I/O pack support: Where applicable, mates with the corresponding I/O pack to provide channel-level analogue input for the control system.
• Signal integrity: Supports accurate measurement of process variables by providing a clean, dedicated signal path for analogue inputs.
• System integration: Operates as part of the modular IS200 board set, coordinating with other boards and I/O packs within the cabinet.
• Rack-mounted modular design: Slots into the control cabinet rack, allowing board-level replacement during maintenance without full system rewiring.
• System lifecycle support: Keeps existing Mark VI/VIe installations operational, supporting spares strategies for ageing turbine control systems.

Application Scenarios

• Gas turbine control: Analogue input signal termination within Mark VI/VIe cabinets for gas turbine monitoring and control.
• Steam turbine control: Analogue input interfacing in steam turbine control applications.
• Process measurement: Supports analogue measurement of pressure, flow, temperature, and other process variables used by the turbine control loop.
• Power generation plants: Keeps legacy Mark VI/VIe turbine controls serviceable in utilities managing long-life assets.
• Oil & gas facilities: Support for turbine-driven compressors and mechanical drive applications under Mark VI/VIe control.
• Maintenance & overhaul: Sourced as a spare during scheduled outages to minimise downtime and rewiring effort.
• Legacy system lifecycle support: Supports spares and phased modernization strategies for plants still running Mark VI/VIe controls.

Frequently Asked Questions