GE IS200STAIH2A – Simplex Analog Input Terminal Board for Mark VI Control Systems

The GE IS200STAIH2A is a simplex analog input terminal board designed for GE Mark VI turbine and balance‑of‑plant control cabinets. It brings multiple field analog signals—typically 4–20 mA current loops and low‑voltage analog sensors—safely into the controller with robust conditioning and dependable wiring. One thing I appreciate is the H2 variant uses Euro‑style pluggable terminal blocks, which, in many cases, makes panel maintenance faster than fixed barrier strips.

From my experience, STAI boards are a solid choice when you need straightforward, stable analog measurement into a Mark VI VME rack without the overhead of TMR hardware. You might notice that it pairs neatly with the VME analog interface card in the rack, keeping the wiring tidy and diagnostics predictable in day‑to‑day operations.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery time: 1 week for in‑stock items; no more than one month at the latest
• Payment terms: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• Simplex analog input collection – Brings multiple field analog signals into the Mark VI, ideal for gas/steam turbine auxiliaries and BOP loops where TMR is not required.
• Designed for 4–20 mA and low‑voltage analog – Suited to common industrial transmitters; onboard filtering helps reduce noise in electrically busy cabinets.
• H2 Euro‑style pluggable terminals – The H2A variant uses pluggable terminal blocks for faster swap‑outs and cleaner service access.
• 24 VDC transmitter excitation – Supports current‑loop instruments using cabinet 24 VDC; simplifies field wiring and power distribution.
• Direct ribbon connection to the controller – Mates via ribbon cable(s) to the associated Mark VI VME I/O card for reliable, low‑latency acquisition.
• Panel‑mountable with clear shield/ground points – Built for clean terminations and proper cable shielding practices in turbine control cabinets.

Technical Specifications

Related or Supporting Products

• IS200STAIH1A – Similar STAI analog input board with barrier‑type terminals (ring‑lug friendly); choose H1 where fixed screw barriers are preferred.
• IS200TBAI… – TMR analog input terminal board used in triple‑redundant Mark VI applications; selected when high availability is mandatory.
• IS200VAIC… – VME analog interface card that mates to STAI via ribbon cables; required for signal acquisition into the rack.
• IS220PAIC… – Mark VIe analog input pack; a practical path when migrating to Mark VIe while keeping similar signal ranges.

Installation & Maintenance

• Cabinet & environment – Install in a clean, dry, ventilated enclosure meeting industrial panel standards (typically NEMA or IEC). Keep ambient within the stated cabinet limits and avoid high‑EMI cable routes where possible.
• Wiring & shielding – Use twisted‑pair shielded cable for 4–20 mA loops; terminate shields at the board/cabinet ground as per site grounding policy to minimize noise. The H2 Euro plugs help achieve neat strain relief and quick removal.
• Power & loops – Provide stable 24 VDC for transmitter excitation. Verify each loop’s polarity and burden; most issues I see in the field are simple loop wiring reversals.
• Commissioning – After wiring, run a loop check from the controller, confirm scaling in the Mark VI software, and document channel tags. A customer at a refinery mentioned they cut loop‑check time by using color‑coded Euro plugs per skid.
• Routine maintenance – Periodically re‑torque terminal screws, inspect for oxidation, and clean dust with dry air. There’s no firmware on the terminal board; any calibration or filtering changes are typically handled in the controller configuration.
• Safety – De‑energize loops before servicing. Observe ESD handling when removing ribbon cables or Euro plugs. Keep spare fuses (if used in your loop design) available in the cabinet.

Quality & Certifications

• Manufactured under ISO 9001 quality systems (typical for GE production)
• CE‑compliant assembly for industrial control environments
• UL/CSA considerations apply at the system/cabinet level; components are UL‑recognized in many cases
• RoHS status can vary by vintage/revision; H‑series Mark VI boards are often non‑RoHS—verify per lot if required
• Standard manufacturer’s warranty support, with our 365‑day coverage on supply