GE IS200STCIH2A（IS230SNCIH2A) Simplex Contact Input Module

The GE IS230SNCIH2A, also cataloged as the IS200STCIH2A Simplex Contact Input Board, operates as a dedicated hardware component for discrete contact signal acquisition within Mark VIe and Mark VIeS platforms. This assembly accepts external binary transitions and processes them into synchronized input memory structures for validation by a paired host controller.

Suffix Breakdown & Model Matrix

• IS230SNCIH2A (Full Module Assembly): Standard designation for the complete, physical device configuration enclosed in a protective housing frame. It comes equipped with integrated mounting mechanisms optimized for straight deployment onto terminal cabinet rails.
• IS200STCIH2A (Terminal Board PCBA): Designates the internal base printed circuit board assembly (PCBA) element. It houses the primary 24-position contact tracing circuitry, isolation optocouplers, and a large female port designed to mate with a single PDIA I/O pack.

Hardware Specifications

Industrial Control and Drive Dynamics

• Backplane Bus Communication Velocity Licences: The hardware terminal board maps state alterations from the 24 contact circuits directly across a single large female port to the companion PDIA pack. This path maximizes communication velocity, serialization, and register logging performance, pushing time-stamped status flags directly across the controller network without software polling overhead.
• I/O Density Scaling and Isolation: The card condenses 24 separate contact tracing channels into a singular base board footprint. Each input line features internal passive filtering and onboard galvanic isolation barriers to withstand inductive spikes from external 125 VDC wetting sources, allowing scaling of discrete points while preventing field transients from migrating into sensitive logic tracks.

Frequently Asked Questions

Q: What is the significance of the A-rated revision assigned to the IS200STCIH2A board?

A: The A-rated suffix represents the baseline manufacturing code configuration released for this series. This revision code designates standard hardware layout compliance with the majority of Group 2 GE Mark VIe and Mark VIeS safety and control frames.

Q: Can the board tolerate varying loop potentials across the 24 input channels simultaneously?

A: No. While the internal optoelectronic components are electrically rated to accept external wetting potentials of 24 VDC, 48 VDC, or 125 VDC, the inputs on a single simplex board share common return rails, requiring uniform voltage scaling across all active points within that specific node.

Field Installation Guidelines

• Chassis Layout Alignment, Clearance Constraints, and Mechanical Seating: Fasten the assembly onto a standard industrial DIN rail or flat mount it against the internal cabinet backplane grid using the two large base mounting holes. Maintain a 50 mm clearance perimeter around the perimeter housing to promote unrestricted convective airflow and access to the terminal blocks.
• Conductor Separation, Wireway Constraints, and Shield Grounding: Route all high-potential discrete wetting lines inside panel conduits separated from high-speed data connections or sensitive low-voltage analog cables. Connect the terminal block ground paths to the central copper earth bus bar of the cabinet panel structure to ensure adequate dissipation of electromagnetic transients.