The GE IS200STCIH2AED is a simplex contact input terminal board used in GE Mark VI and Mark VIe turbine control systems. It is designed to collect and condition multiple dry contact signals from field devices and transmit them to the control processor through the PAIC I/O pack interface.
This module is widely used in industrial automation and turbine protection architectures where reliable digital signal acquisition is required for status monitoring, permissives, and interlocks.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS200STCIH2AED |
| Series | Mark VI / Mark VIe Speedtronic |
| Module Type | Contact Input Terminal Board |
| System Configuration | Simplex (single-channel only) |
| Input Channels | 24 dry contact inputs |
| Input Voltage Range | 16–145 V DC (multiple ranges supported) |
| Nominal Excitation | 24 V DC (floating) |
| Input Current | ~2.5 mA (typical channels) |
| Signal Filtering | 4 ms hardware debounce filtering |
| Isolation | Up to 1500 V DC |
| Communication Interface | PAIC I/O pack via D-type connector |
| Controller Interface | Ethernet-based Mark VI system communication |
| Mounting | DIN rail or cabinet-mounted |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5%–95% non-condensing |
| Weight | ~0.2–0.8 kg (variant dependent) |
| Dimensions | ~15.8 × 10.8 × 3.3 cm |
The board is engineered for high-density digital input acquisition with strong electrical isolation and industrial-grade noise suppression.
System Role & Functional Behavior
The IS200STCIH2AED functions as a digital signal acquisition layer within GE turbine control systems:
- Collects dry contact signals from field devices (switches, relays, interlocks)
- Conditions and filters input signals to eliminate electrical noise
- Transmits processed signals to PAIC I/O pack modules
- Supports turbine permissives, alarms, and shutdown interlocks
- Provides electrical isolation between field wiring and control system
It is typically used in simplex configurations where a single-channel input path is sufficient for monitoring and control logic.
Recommended Related Modules
For a complete Mark VI I/O architecture, this board is commonly paired with:
- IS200VAICH1C Analog Input Module
- IS200TBAIH1C Analog I/O Terminal Board
- IS200TRLYH1B Relay Output Module
- IS200TVIBH2B Vibration Monitoring Board
- IS215UCVEM06A Control Processor Module
Together, these modules form a full digital + analog + protection signal ecosystem.
Common GE Mark VI System Modules
Frequently used alongside this board:
- IS200TTURH1B Turbine Protection Board
- IS200TSVOH1B Servo Control Module
- IS200TBCIH1C Discrete Input Board variants
- IS220PDIOH1A Distributed I/O Pack
- IS200EGDM Ground Detection Module
Each contributes to turbine monitoring, safety, and actuator control.
