I/O modules

Key Technical Specifications

This GE IS200STCIH2A board operates from a 24V DC power supply. It terminates 16 simplex dry contact inputs for turbine systems. The unit measures 21 cm in length, 16 cm in width, and 4 cm in height. Its total weight equals 0.65 kg without any packaging materials.

The GE IS200STCIH2A includes 16 digital input channels with wetting voltage. Additionally, it features one 50-pin ribbon connector for host interface. A single 6-pin terminal block connects the DC power input. The board contains 16 optocouplers, 16 status LEDs, 1 FPGA, 16 resistors, 1 voltage regulator, and 12 capacitors.

GE IS200STCIH2A stores energy using one electrolytic capacitor. This capacitor provides 47 µF at 35V rating for contact debounce filtering. Consequently, the board prevents false readings during 10 millisecond contact chatter. Therefore, input status remains accurate in noisy industrial environments.

Design and Integration

This simplex contact input board uses four-layer PCB construction with isolated input banks for noise immunity. Consequently, the GE IS200STCIH2A operates reliably from -10°C to +55°C ambient temperature.

For installation, you need M3 screws for the four mounting holes. The board draws 120 mA typical current from the 24V DC supply. Each input channel provides internal wetting voltage for dry contacts. We recommend using shielded cables for all field connections.

Practical Application

This terminal board connects dry contact switches to a turbine control system. It reads limit switches, push buttons, and relay contacts continuously. The GE IS200STCIH2A then routes isolated input signals to the host controller. Therefore, it serves as a reliable digital input interface for GE turbine control panels.

Details