IS200STAIH2A GE Mark VI 20-Channel Analog Terminal Board

Product Overview

The GE IS200STAIH2A (including revision IS200STAIH2ACB) functions as a high-density Simplex Analog Input Terminal Board within the Mark VI Speedtronic control architecture. This module provides the critical hardware interface for up to 20 field analog signals, including 4-20 mA current loops and ±5 V DC inputs. By consolidating inputs from temperature, pressure, and flow transmitters into a single hardened interface, the IS200STAIH2A ensures the turbine control processor receives precise, noise-filtered data for real-time decision-making. We deliver this unit as 100% Brand New in Box (NIB), guaranteeing factory-original calibration and component integrity.

Technical Specifications

The IS200STAIH2A utilizes professional-grade galvanic isolation and surge protection to maintain signal purity in high-EMF power plant environments.

Engineering Advantages

• High-Density Signal Consolidation: The IS200STAIH2A supports 20 independent analog channels on a single board. This high density reduces the number of terminal blocks required in the control cabinet, saving valuable panel space and simplifying cable management for complex turbine subsystems.

• Advanced Galvanic Isolation: This board features comprehensive isolation barriers between power and signal circuits. This design prevents ground loops and electrical transients from damaging the central Mark VI processor, ensuring the safety of the entire Distributed Control System (DCS).

• Industrial-Grade Noise Rejection: GE engineered the IS200STAIH2A with robust EMI shielding. This prevents high-frequency interference from nearby motors or switchgear from distorting sensitive analog signals, maintaining the high precision required for process monitoring.

• Streamlined Maintenance Workflow: The modular, hot-swappable design allows for rapid hardware replacement. Technicians swap the board without de-energizing the entire control rack, which prevents unnecessary turbine trips and significantly lowers the Mean Time to Repair (MTTR).

• Rugged Environmental Tolerance: Built to withstand the thermal stresses of power generation facilities, the board maintains accuracy from -20°C to +65°C. The robust construction resists vibration and dust, ensuring long-term reliability in non-climate-controlled instrument rooms.

FAQs

• What is the difference between the IS200STAIH2A and the "H2ACB" version?

  The "H2ACB" suffix indicates the specific hardware revision and assembly group. The IS200STAIH2ACB remains fully backward compatible with the base IS200STAIH2A model, providing the same form factor and electrical specifications for the Mark VI system.

• Does this board support both current and voltage inputs simultaneously?

  Yes. The IS200STAIH2A handles both 4-20 mA current loops and ±5 V DC voltage signals. Engineers configure individual channels via the Mark VI software (ToolboxST) to match the specific requirements of the connected field transmitter.

• Is this board suitable for TMR (Triple Modular Redundant) systems?

  The IS200STAIH2A is a "Simplex" terminal board, typically used in applications where a single interface is sufficient. For TMR configurations requiring triple redundancy, GE offers specific TAIH terminal boards designed for voting logic.

• How do I ensure the board is 100% Brand New?

  Every IS200STAIH2A we supply is New in Box (NIB), featuring the original manufacturer's seal and anti-static packaging. This ensures the board has never been installed or exposed to field contaminants.