GE IS200TTURH1CEC Terminal Board | 80 I/O Channels Mark VI

This terminal board interfaces field devices with the Mark VI turbine control system. It handles discrete inputs and outputs for valve position feedback. You will mount this board in standard turbine terminal cabinets.

Key Technical Specifications

The IS200TTURH1CEC provides forty discrete input channels for status monitoring. Another forty discrete output channels drive relay coils and solenoids. Each channel features optical isolation for electrical noise rejection.

Parameter	Technical Data
Product Type	Industrial Turbine Terminal Board
Discrete Inputs	40 channels, 24V DC
Discrete Outputs	40 channels, 24V DC @ 0.5A
Isolation Method	Optical couplers per channel
Dimensions (W x H)	30.5 cm x 22.9 cm (12 x 9 inches)
Total Weight	1.1 kg (2.43 lbs)
Terminal Blocks	10 x 10-position barrier strips
Output Connector	2 x 50-pin ribbon cables
Onboard Resistors	240 surface-mount resistors
Optocouplers	80 individual components
Energy Storage	680 µF decoupling capacitance
Operating Temperature	-30°C to 65°C

Hardware Architecture and Component Layout

Eighty optocouplers provide complete electrical separation between field and logic circuits. The IS200TTURH1CEC distributes its 240 resistors across input and output paths. Sixty-eight decoupling capacitors stabilize the 24V supply for each channel group. A total of 680 µF of capacitance handles transient current demands.

Interface and Connectivity

Ten 10-position barrier strips accept field wiring from sensors and actuators. Each barrier strip includes clearly labeled channel numbers for easy identification. Two 50-pin ribbon cables carry logic signals to the main controller board. The board also features LED indicators for each output channel’s on-off status.

Practical Installation Notes

Mount this terminal board vertically inside the turbine control cabinet. The IS200TTURH1CEC requires no external power for its passive components. Always verify the field wiring polarity matches the board’s terminal markings. Use the built-in test points to troubleshoot input signals without disconnecting wires.