The GE IS200ISBEH2ABC is an InSync Bus Extender (ISBE) board used in the GE Speedtronic Mark VI turbine control system. It functions as a communication and signal extension module for the ISBus (control backplane communication network), enabling reliable data transfer between control modules and distributed turbine control components.
In simple terms, it acts as a high-speed communication bridge inside the Mark VI control rack, supporting signal routing, isolation, and bus extension between critical control electronics.
Technical Specifications
The IS200ISBEH2ABC is a communication-oriented interface board designed for industrial turbine control environments.
| Parameter | Specification |
|---|---|
| Module Type | ISBus Extender / InSync Bus Interface Board |
| Series | GE Speedtronic Mark VI |
| Function | ISBus communication extension and signal routing |
| System Role | Backplane communication interface |
| Power Input | 18–36 VDC via onboard DC/DC converter |
| Output Supply | 5 VDC regulated output (~1A) |
| Connectors | P1A / P1B plugs, fiber-optic ports |
| Communication | ISBus transmit/receive interface |
| Jumper Settings | Interlock bypass (1-2 normal / 2-3 bypass) |
| Indicators | 3 onboard LEDs (status monitoring) |
| Sensors | 4 conduction sensors (system detection points) |
| Components | ICs, resistors, capacitors, opto components |
| Protection | EMI shielding + industrial conformal coating |
| PCB Type | Multilayer industrial communication board |
| Operating Temperature | Industrial range (typically 0°C to 60°C) |
This module is designed to ensure stable and noise-resistant communication in high-interference turbine environments.
Physical Dimensions & Weight
| Item | Value |
|---|---|
| Dimensions (H × W × D) | ~160 × 160 × 120 mm |
| Weight | ~0.8–1.0 kg |
System Role
The IS200ISBEH2ABC operates as a communication backbone extension module:
- Extends ISBus communication inside Mark VI rack
- Transmits and receives high-speed control signals
- Provides electrical isolation between subsystems
- Supports fiber-optic and backplane communication links
- Maintains system synchronization between control modules
It is not a processor or control logic unit, but a critical communication infrastructure component.
Recommended Related Models
- IS200ISBEH2A / IS200ISBEH2ABB – earlier ISBus extender variants
- IS200BICIH1ACA – bridge interface controller board
- IS200BPIBG1AEB – IGBT bridge interface module
- IS200DSPXH1CAA – DSP control processor board
- IS200CABP backplane assembly modules
