Product Core Brief
- Model: IS200AEADH1A
- Brand: GE
- Series: Mark VI Speedtronic
- Core Function: Interfaces discrete I/O signals and relay drivers for gas/steam turbine management.
- Product Type: Turbine Control I/O Board
- Key Specs: 8 Relays | 3x 12-Pin Terminal Strips | VME Rack
- Condition: New Original / New Surplus
IS200AEADH1A
Product Introduction
GE is a discrete I/O board for the Mark VI Speedtronic system. It manages relay drivers and terminal inputs for gas and steam turbine control.
This industrial automation unit mounts in 13 or 21-slot VME racks. It features eight onboard relays and three vertical 12-pin terminal strips for field wiring.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE |
| System Platform | Mark VI Speedtronic |
| Relay Count | 8 Onboard Relays |
| Terminal Strips | 3x Vertical 12-Pin |
| Rack Type | 13 or 21-Slot VME |
| Connectors | Insertable & Right-Angle |
| Heat Management | 2x Heatsink Assemblies |
| Components | Wirewound Resistors, Caps, ICs |
| Application | Gas/Steam Turbine & BOP |
| Mounting | Corner-Mount PCB Holes |
Quality Control Process
Relay boards need mechanical and electrical validation. We start by inspecting all eight relays for contact pitting or coil discoloration under magnification. Next, the replacement module goes on a VME test rack. We energize each relay coil and verify contact continuity with a Fluke multimeter. Then, we inject 24VDC into the terminal strips to confirm signal conditioning with an oscilloscope. Finally, we check the heatsink mounting torque and pack it in anti-static shielding.
IS200AEADH1A
Replacement Pitfall Guide
❗ VME Slot Assignment: This board is not plug-and-play across all slots. The VME backplane assigns specific I/O addresses per slot. Installing in the wrong slot will cause a system configuration fault.
❗ Relay Coil Suppression: The onboard relays have internal suppression circuits. If you bypass this board with generic relays, you risk EMI corrupting the Mark VI controller. Always use the OEM assembly.
❗ Terminal Strip Torque: The three vertical terminal strips require precise torque. Over-tightening cracks the PCB laminate; under-tightening causes arc faults under load. Use a calibrated inch-pound driver.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level (Direct/Needs Adaptation) | Migration Notes |
|---|---|---|---|
| Direct Drop-In | Verify VME slot address matches | ||
| IS200AEADH1B | Needs Adaptation | Check relay coil voltage revision |
- Relay Response: < 10 ms coil-to-contact actuation
- VME Throughput: 10Base2 Ethernet data transfer
Need the VME slot assignment chart for this board? I can pull up the backplane address map.
