Description
GE IS200AEADH4ADA | Mark VI Circuit Board Assembly | Turbine Control
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric |
| Model | IS200AEADH4ADA |
| Series | Mark VI / IS200 |
| Functional Code | AEAD |
| Product Type | Circuit board assembly |
| Primary Application | GE Speedtronic turbine control |
| Board Construction | Rectangular printed circuit board |
| Terminal Strips | 3 vertical strips, 12 pins each |
| Relays | 8 reported onboard relays |
| Heat Sinks | 2 reported assemblies |
| Mounting | Board-level installation in the associated Mark VI architecture |
| OEM Status | Legacy / no longer manufactured |
Available technical descriptions consistently show the IS200AEADH4ADA as a GE Mark VI board assembly and describe a rectangular PCB with three 12-pin terminal strips, multiple plug-in connectors, eight relays, resistive/capacitive components, and two heat-sink assemblies.
Important specification note: Several current reseller pages describe this same part as a 16-channel analog input board, an analog I/O board, or a Mark VIe HART module. Those descriptions conflict with one another and are not supported by a sufficiently authoritative GE source in the material I could verify. For procurement, the board artwork, full GE part number, terminal arrangement, host rack, and original system drawing should take precedence.
Product Introduction
The GE IS200AEADH4ADA is a legacy GE Mark VI Speedtronic circuit-board assembly used within turbine control equipment. Mark VI systems were developed for gas and steam turbine control and can also support balance-of-plant functions. The IS200 board format is part of the hardware architecture used to interface control electronics with turbine field equipment.
From a maintenance perspective, the IS200AEADH4ADA should be treated as a system-specific PCB rather than a generic PLC analog card. The exact function depends on the host cabinet and associated terminal/interface hardware, so replacing it by description alone is risky. Matching the complete part number and board revision is more important than relying on a reseller’s generic “analog input” label.
IS200AEADH4ADA
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
The main replacement risk with an IS200AEADH4ADA is misidentification. Several online descriptions assign different I/O functions to the same part number, which can lead to an incorrect replacement being installed in a turbine control cabinet.
Typical Applications
- GE Mark VI Speedtronic turbine control systems
- Gas turbine control and monitoring
- Steam turbine control installations
- Balance-of-plant control applications
- Legacy GE turbine-control spare-part maintenance
Mark VI is specifically associated with gas and steam turbine control as well as balance-of-plant applications.
Technical Pitfalls to Avoid
- Do not assume the board is a generic 16-channel analog input module.
Several reseller descriptions make this claim, but the available evidence is inconsistent. Verify the cabinet drawing and GE documentation before assigning channel count or signal type. - Do not confuse Mark VI and Mark VIe terminology.
Some current listings place the under Mark VIe and describe VME/backplane or HART functionality. Other sources identify it simply as a Mark VI IS200 board. The host controller and rack generation should be verified from the installed system. - Match the complete board suffix.
should not automatically be substituted with IS200AEADH4A or another AEAD-family board. Hardware revision, connector arrangement, firmware-dependent configuration, and system compatibility can differ. - Inspect the physical board before approving a used replacement.
The reported eight-relay arrangement, terminal-strip layout, connector population, and heat-sink configuration provide useful visual checks. A board with a different component population deserves further investigation before installation.
Related Products
- GE IS200AEADH4A — Closely associated AEAD board designation; verify suffix and hardware revision before substitution.
- GE IS200DTAIH1ABB — Mark VI DTAI terminal board used for analog signal interfacing; functionally different from the AEAD board.
- GE IS200DTAOH1ABA — Mark VI DTAO analog output terminal board; intended for analog output termination rather than general AEAD replacement.
- GE IS200TBAIH1C — Mark VI analog input terminal-board family; useful when tracing field wiring and terminal interfaces.
- GE IS200TBAOH1C — Mark VI analog output terminal board associated with analog output signal termination.
- GE IS200DSPXH1D — Mark VI digital signal-processing/control board family; substantially different architecture from the AEAD board.
- GE IS200ISBEH1ABB — Mark VI interface-board family used elsewhere in the turbine control architecture.
- GE IS200TRLYH1B — Mark VI relay-interface board family, relevant when tracing relay/control circuits.
- GE IS220-series I/O modules — Later GE turbine-control hardware family; not automatically interchangeable with an IS200 board.
Procurement & Replacement Check
Before purchasing a , verify:
- Exact part number:
- GE board artwork and revision
- Serial number and manufacturing label
- Host system: Mark VI or another documented GE architecture
- Rack/backplane location
- Associated terminal board
- Connector and terminal-strip arrangement
- Onboard relay population
- Existing system drawings and I/O database
- Controller and application configuration
- Condition of connectors, relays, capacitors, and heat sinks
- Whether the replacement has been electrically tested
Recommended procurement description:
GE Mark VI Speedtronic Circuit Board Assembly, AEAD Series PCB, GE Turbine Control System Replacement Board — Verify Exact Host Cabinet and Functional Configuration Before Installation.
The safest technical description is GE Mark VI IS200-series circuit board assembly. I would not advertise it as a verified 16-channel HART analog-input module or assign specific voltage/current ranges without the original GE documentation or a clear photo of the board nameplate and artwork.
