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The GE IS200TBCIH1BBC is a Contact Terminal Board used in GE Mark VI Speedtronic turbine control systems. It provides a high-density interface between field wiring and the turbine control system, serving as a key termination point for digital and analog input signals.

This module is widely deployed in gas and steam turbine applications, where it ensures reliable signal collection, stable electrical interfacing, and accurate transmission of field data to the control processors. It plays a critical role in maintaining safe turbine operation by organizing and isolating large volumes of field signals within industrial environments.

Technical Specifications

Parameter	Details
Manufacturer	General Electric (GE)
Model Number	IS200TBCIH1BBC
System Series	Mark VI Speedtronic
Module Type	Contact Terminal / I/O Interface Board
Function	Field signal termination and routing
Input Capacity	48 terminal points (24 per block)
Signal Type	Dry contact inputs / system I/O signals
Connector Interface	VME backplane + external terminal blocks
Board Structure	Multi-layer PCB with passive and active components
Diagnostics	System fault string support + LED indicators
Operating Environment	Industrial turbine control cabinet

Applications

Gas turbine control and monitoring systems
Steam turbine sequencing and protection
Combined-cycle power plant control systems
Industrial distributed control systems (DCS)
Power generation signal termination and wiring management

Advantages

High-density 48-point terminal design for complex wiring
Reliable signal termination for turbine control environments
Strong compatibility with GE Mark VI architecture
Designed for harsh industrial conditions (vibration, heat, EMI)
Improves cabinet wiring organization and maintenance efficiency
Supports stable long-term operation in power plants

Technical FAQs

What is the main function of IS200TBCIH1BBC?
It serves as a terminal interface board for connecting field signals to the control system.
Which system uses it?
GE Mark VI Speedtronic turbine control system.
How many terminals does it have?
48 terminals split into two blocks.
What type of signals does it handle?
Mainly dry contact and system I/O signals.
Is it an active control board?
No, it is primarily a passive interface/termination board.
What are its dimensions?
330 mm × 101.6 mm × 48 mm
What is its weight?
Typically around 0.5–1.5 kg depending on revision.
Where is it installed?
Inside GE Mark VI turbine control racks.
What industries use it most?
Power generation, oil & gas, and heavy industrial automation.
Why is it important in the system?
It ensures reliable field signal organization and safe communication with control processors.