Overview
Configured for monitoring discrete contact signals in the Mark VI control system, the General Electric IS200STCIH4A (IS200STCIH4A Contact Input Card) provides direct physical and electrical termination for field contact circuits. The board uses DIN-rail mounting and includes a terminal strip with fifty-one screw connections, E1 and E2 terminal identifiers, one 37-pin female D-type connector, and one three-position female plug. It also contains passive components and one integrated circuit for contact input signal processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200STCIH4A |
| Brand | General Electric |
| Series | Mark VI |
| Product Type | Contact Input Cards |
| Function | Terminal board for contact input signal termination and monitoring |
| Mounting | DIN-rail mounting |
| Field Connections | Fifty-one screw terminal connections |
| Terminal Identification | E1 and E2 |
| Main Interface Connector | One 37-pin female D-type connector |
| Auxiliary Connector | One three-position female plug |
| Circuit Components | Resistors, capacitors, diodes, and one integrated circuit |
Mark VI I/O Density and Hardware Integration
The IS200STCIH4A supports the General Electric Mark VI hardware architecture by concentrating multiple field contact terminations on a compact terminal board assembly. The terminal strip provides organized physical connection points for monitored contact circuits, while the 37-pin D-type connector provides the interface to associated control hardware.
In addition, the board layout separates field wiring connections from interface connectors. This arrangement supports structured cabinet wiring and simplifies signal tracing during installation and maintenance. The board does not include documented network communication parameters or firmware requirements in the provided technical data.
Frequently Asked Questions
Q: What is the primary function of the IS200STCIH4A?
A: The IS200STCIH4A functions as a DIN-rail contact input card and terminal board for connecting and monitoring discrete contact signals within a General Electric Mark VI control system.
Q: What physical connectors are installed on the IS200STCIH4A?
A: The board includes fifty-one screw terminal connections, one 37-pin female D-type connector, and one three-position female plug. E1 and E2 identify terminal positions adjacent to the terminal board.
Q: Does the provided data specify the operating temperature or power consumption?
A: No. The provided technical information does not define operating temperature limits, power consumption, dimensions, or weight. These values should be verified against the applicable General Electric documentation before system design or replacement.
Field Installation Guidelines
- Disconnect system power before installing or removing the IS200STCIH4A.
- Mount the board securely on the specified DIN rail and verify mechanical retention.
- Identify each field contact conductor before connecting it to the screw terminal strip.
- Tighten terminal screws according to the applicable installation documentation to prevent loose field connections.
- Keep contact input wiring separated from high-voltage and high-current conductors where practical.
- Use appropriate shielding and grounding practices when field cables operate near sources of electrical interference.
- Inspect the 37-pin D-type connector for bent pins or mechanical damage before connection.
- Verify E1 and E2 terminal identification against the applicable Mark VI wiring documentation.
- Do not apply field voltages or signal levels that exceed the associated Mark VI input circuit specifications.
- Perform continuity and signal-state verification after installation before returning the control system to service.
