GE IS200TDBTH8A IS200TDBTH8APR2 TMR I/O Board

The GE IS200TDBTH8A and GE IS200TDBTH8APR2 provide robust TMR contact I/O termination. These boards belong to the Mark VI series from General Electric. They directly manage critical contact inputs and outputs for turbine control systems. Consequently, these boards ensure reliable operation in heavy-duty power generation.

Technical Specifications

The table below lists the key parameters for the GE IS200TDBTH8A and IS200TDBTH8APR2 .

Parameter	Specification
Manufacturer	General Electric (GE)
Full Model Numbers	GE IS200TDBTH8A , GE IS200TDBTH8APR2
Product Category	TMR Contact I/O Terminal Board
Dimensions (H x W x D)	3.0 cm x 18.0 cm x 28.0 cm
Weight	0.45 kg (0.99 lbs)
Primary Interface	Two 50-pin ribbon cable connectors
Contact Channels	24 digital input and 16 digital output channels
Component Count	Approximately 150 resistors and 55 capacitors
Energy Storage	Multiple 22 µF electrolytic capacitors
Operating Temperature	-30°C to +65°C

Functional Design and Signal Integrity

The GE IS200TDBTH8APR2 connects directly to the TMR controller backplane. It processes triple-modular redundant signals for fault-tolerant operation. This board uses surface-mount components to save valuable cabinet space. Many capacitors provide local energy storage for contact debouncing. Therefore, the IS200TDBTH8A eliminates false triggering in noisy industrial environments.

Installation and Compatibility

You must verify firmware compatibility before installing this terminal board. The GE IS200TDBTH8A fits exclusively into Mark VI series turbine cabinets. Always replace faulty units with identical GE board revisions. Additionally, check the terminal assignments against your system wiring diagram. This practice prevents I/O mapping errors with the main turbine controller.