GE IS200DTAOH1ABA | Mark VI Speedtronic Terminal I/O Board

GE IS200DTAOH1ABA | Mark VI Speedtronic Terminal I/O Board

IS200DTAOH1ABA is a factory‑original terminal I/O board manufactured by General Electric for the GE Speedtronic Mark VI turbine control system. It serves as a critical field‑signal interface card between the Mark VI control processor and on‑site field devices, widely deployed in gas turbine, steam turbine, power generation and heavy‑duty industrial control applications. This printed circuit board handles digital signal termination, signal conditioning and wiring conversion for plant‑floor contactors, relays, solenoids and discrete status feedback signals, supporting simplex and redundant Mark VI system configurations.

Many power plant maintenance teams source IS200DTAOH1ABA as replacement spare parts for system overhaul, retrofit, breakdown repair and preventative maintenance of GE Mark VI control racks. It is commonly stocked as surplus, new‑old‑stock and fully refurbished industrial automation spare part across global MRO supply chains.

Key Features

• Designed exclusively for GE Speedtronic Mark VI platform, direct backplane connection with Mark VI I/O rack, no extra adapter required
• Multi‑channel discrete signal termination interface, processes contact status input / output signals for field switchgear, contactors and actuators
• Built‑in surge suppression and EMC noise filtering circuitry, improves anti‑interference performance in high‑noise power‑plant environments
• Industrial‑grade PCB with SMD components, stable long‑term operation under harsh plant operating conditions
• Equipped with standard D‑sub connector and barrier terminal blocks for convenient field wiring, fast troubleshooting and module swap‑out
• Supports system diagnostic feedback via backplane communication, assists technicians in quick fault location
• Compact rack‑mount form factor, fits standard Mark VI I/O cabinet slots, easy installation and replacement during outage windows

Technical Specifications

• Part Number：IS200DTAOH1ABA
• Manufacturer：General Electric (GE)
• Product Type：Terminal I/O Board
• Compatible System：GE Speedtronic Mark VI Turbine Control System
• Application：Gas Turbine Control, Steam Turbine Control, Power Generation Plant DCS, Industrial MRO spare replacement
• Mounting：Rack‑mount inside Mark VI control cabinet
• Operating Temperature：‑20 °C ~ +60 °C
• Storage Temperature：‑40 °C ~ +85 °C
• Protection Class：IP20 (for cabinet‑only installation)
• Interface：Backplane bus for Mark VI, D‑sub connector, field terminal blocks
• Function：Discrete signal termination, signal conditioning, field device interface

Typical Applications

1. Gas‑fired power plant GE Mark VI turbine control system I/O signal termination
2. Steam turbine governing and protection control loops
3. Combined‑cycle power generation unit control rack replacement & maintenance
4. Industrial heavy‑duty turbine automation retrofits and upgrade projects
5. MRO spare part for plant emergency repair, scheduled outage component swap

Compatibility Notes

IS200DTAOH1ABA works within the Mark VI Speedtronic control architecture. Please double‑check your rack firmware revision, backplane model and signal definition before ordering replacement units. Cross‑reference against your original BOM list to avoid model mismatch. Related similar part numbers in the same series include IS200DTAIH1ACC, IS200DTAIH1ABB, do not mix different part numbers directly.

Product Condition & Supply Information

IS200DTAOH1ABA is an older generation GE turbine control component, OEM original production is discontinued. Available supply forms include surplus new‑old‑stock, tested refurbished units. All units should undergo full functional testing before delivery, including continuity test, communication test and signal‑channel verification.

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We maintain ample stock, offer fast lead times and deliver products with stable, reliable quality.

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