I/O modules

The GE IS200STCIH6A IS200STCIH6ADD DIN Rail Contact Terminal Board provides high-density discrete signal termination for Mark VIe systems. This board connects field contact inputs directly to the turbine controller. You will find it in gas turbine and steam turbine control cabinets. It accepts 24 VDC discrete signals from limit switches and proximity sensors. Therefore, this unit simplifies field wiring for critical turbine status monitoring.

The GE IS200STCIH6A IS200STCIH6ADD DIN Rail Contact Terminal Board measures 200 mm in height and 150 mm in width. Its depth reaches 35 mm for DIN rail mounting. The unit weighs approximately 0.52 kilograms. It contains no active electronic components at all. Sixteen screw terminals accept field wiring from contact devices. Additionally, you get two 50-pin ribbon cable headers for I/O pack connection.

Key Technical Specifications

Internal Architecture and Energy Storage

The GE IS200STCIH6A IS200STCIH6ADD DIN Rail Contact Terminal Board stores absolutely no electrical energy internally. It contains no capacitors, inductors, or semiconductor devices. Sixteen screw terminals connect directly to a 50-pin ribbon header through copper traces. Each trace provides a short electrical path from the field wire to the I/O pack. A second 50-pin header allows daisy-chaining to another terminal board. The PCB uses a 4-layer construction for noise reduction. A metal DIN rail clip provides secure mounting and grounding. The board includes a ground terminal for field shield connections.

Connection Interfaces and Wiring Details

You will find 16 screw terminals arranged in two rows of eight. Each terminal accepts 24 to 14 AWG copper wire. Use a 3.5mm flathead screwdriver to tighten each screw. Strip 8 mm of insulation from each wire before insertion. Then, insert the bare copper into the square terminal opening. Tighten the screw to 0.6 Nm of torque maximum. The GE IS200STCIH6A IS200STCIH6ADD DIN Rail Contact Terminal Board includes two 50-pin female headers on the PCB. Connect one header to the I/O pack using a shielded ribbon cable. Connect the second header to another terminal board if needed. Each channel connects the field contact between the terminal and the common.

Installation and Mounting Steps

You mount this terminal board onto standard 35 mm DIN rail. First, hook the top clip onto the rail edge securely. Then, press the bottom toward the rail until it snaps into place. Slide the board along the rail for easy panel layout. Connect all field wiring before attaching the I/O pack. The GE IS200STCIH6A IS200STCIH6ADD DIN Rail Contact Terminal Board requires no external power supply. It simply routes contact signals between field devices and the I/O pack. For high-vibration areas, add end stops on both rail ends. Label each terminal with its corresponding channel number clearly. Connect the ribbon cable between the terminal board and the I/O pack. Test each contact with a continuity checker before system startup.

Details