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The IS200STCIH2A is a Simplex Contact Input terminal board from the GE Mark VI series, built for DIN-rail or flat surface mounting. This compact board handles 24 contact inputs, utilizing external nominal DC excitation voltages of 24, 48, or 125 V. It features built-in noise suppression to safeguard the system against electrical surges and high-frequency interference. The terminal board operates exclusively in simplex systems and works with the PAIC I/O Pack, which connects directly to the D-type plug and routes data to the controller over an Ethernet network.
The board automatically detects excitation voltage loss at the contact input side
The board integrates over 80 on-board components, including resistors, capacitors, and diodes
One side of the board features a single 37-pin female D-type connector, supporting direct plug-and-play connection with the I/O pack
To maintain high signal integrity in severe electromagnetic environments, the IS200STCIH2A relies on dense passive filtration. The circuit layout incorporates over 80 discrete components, including a precise network of resistors, capacitors, and diodes, clustered alongside a single integrated circuit. This hardware matrix provides aggressive high-frequency noise suppression and voltage surge absorption at the terminal boundary. Every incoming pulse undergoes a mandatory 4 ms hardware filter debounce time, filtering out contact bounce and inductive transient interference before the logic is processed.
External wiring connects via heavy-duty terminal strips, with distinct E1 and E2 labels identifying the terminal ring connections on either side of the board layout. On the opposite side of the terminal strips sits a single 37-pin female D-type connector alongside a single three-position female plug. The 37-pin connector enables direct, toolless plug-and-play mating with a compatible PAIC I/O Pack. This configuration bridges the physical terminal pins directly to the I/O processor, which then relays digitized channel data back to the primary controller over a standard Ethernet network interface.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
General Electric IS200STCIH2A Simplex Contact Input Terminal Board Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Gas Turbine Power Generation
Connects low fuel pressure switches, anti-surge valve limit switches, and turning gear status signals around the gas turbine unit.
Steam Turbine Power Generation
Monitors the closed status switches of the main steam valves, the low vacuum main pressure relays of the condenser, and the high-pressure shaft seal steam leakage physical alarms.
Petroleum Refining Industry
Connects interlock safety explosion-proof limit control contacts of large flue gas turbine units in refinery heavy oil fluid catalytic cracking units.
Iron, Steel, and Metallurgy Industry
Collects high oil level switches and lubrication oil pressure sudden change contacts in the bearing chambers of large turbine-driven blast furnace blower units.
Nuclear Power
Receives contact signals from auxiliary oil pumps and turning gears of giant steam turbines that drive main generators in the non-nuclear zone (conventional island) of nuclear power plants.
Seawater Desalination Industry
Receives steam pipeline valve contacts supplying steam to low-pressure auxiliary turbines in cogeneration multi-effect distillation seawater desalination plants.
When using this terminal board, you must strictly adhere to the wire cross-section limits of the screw terminals, ensure correct input loop wiring to prevent any short circuits of the 24 VDC excitation voltage, fully isolate the control system power before mounting or dismounting the PDIA I/O pack from the 37-pin physical socket, and implement on-site dust-proof and moisture-proof measures to compensate for the limitations of its IP00 open-frame architecture.
Alternative Names
Alternative Names
1S200STCIH2AIS200STC1H2AIS2OOSTCIH2A1S2OOSTC1H2A
Technical notes
Technical notes
The GE IS200STCIH2A is a 24-channel dry contact input terminal board engineered for simplex systems, featuring external excitation support and advanced high-frequency noise suppression. It connects to the PAIC module via a single 37-pin D-type interface, utilizing an onboard 4 ms hardware filter while executing comprehensive hardware-level self-diagnostics.
It is a simplex dry contact signal input terminal board developed by General Electric (GE) for its Mark VI turbine control system, serving as an electrical isolation and signal transition interface between field switches and the control system.
How to install the IS200STCIH2A module?
This product supports two mounting methods: it can be snapped directly onto a standard DIN rail inside the control cabinet using its built-in slots, or it can be securely fixed onto a flat surface using the symmetric round anchoring apertures on both short edges.
How many channels does the IS200STCIH2A support?
It provides a total of 24 independent dry contact voltage input channels, allowing the simultaneous connection of 24 status signals from field pushbuttons, limit switches, or relay contacts.
How is the hardware anti-interference capability of the IS200STCIH2A?
It is exceptionally robust. The board integrates over 80 discrete resistors, capacitors, and diodes, providing aggressive high-frequency noise suppression and voltage surge protection for each input loop.
How to connect the IS200STCIH2A to the main controller?
It connects to a compatible I/O pack (such as the PAIC module) via its on-board 37-pin female D-type connector. The I/O pack then transmits the digitized data to the Mark VI controller over an Ethernet network.
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