Description
The GE IS215AEPAH1CA is an analog expansion and protection input module designed for the General Electric Mark VI and Mark VIe distributed control systems. It acts as an interface layer for processing high-integrity analog inputs and safety-related sensor signals, routing critical instrumentation data back to the primary controller over the internal VME or IONet backplane architecture.
Supply Status and Commercial Terms
- Condition: New Surplus / Factory Sealed
- Availability: In stock for immediate dispatch
- Standard Warranty: 12 months from date of shipment
- Lead Time: 1 to 2 business days for standard dispatch
- Pricing Note: Listed price is indicative. Price subject to market conditions; contact us for a firm quote.
Technical Specifications
| Parameter | Value |
| Manufacturer | General Electric (GE) / Alstom / Bently Nevada |
| Product Type | Analog Expansion and Protection Module |
| Catalog Designation | IS215AEPAH1CA (also referenced as AEPA) |
| System Compatibility | Mark VI / Mark VIe Distributed Control Systems |
| Processor Architecture | Texas Instruments DSP / On-board micro-controller (verify with OEM datasheet) |
| Input Channels | Multiple differential analog input channels (supports voltage and current inputs) |
| Terminal Board Compatibility | Pairs with STAEE or similar termination boards (verify with system manual) |
| Power Requirements | Powered via rack backplane (typically 28 V DC bus) |
| Operating Temperature | -30 to +65 °C |
| Enclosure Protection | IP20 (intended for rack mounting inside vented control cabinets) |
| Conformity / Standards | CE, UL, API 670 guidelines for machinery protection (verify with OEM datasheet) |
Engineering and Field Deployment Notes
In gas turbine and steam turbine control retrofits utilizing Mark VIe architecture, the IS215AEPAH1CA handles precision analog inputs such as vibration, bearing temperatures, and servo-valve feedback loops.
Integration and Compatibility
- Firmware and Hardware Revisions: Ensure the hardware suffix (H1CA) matches the configuration requirements defined in the ToolboxST application software. Mixing incompatible revision levels can cause diagnostic alarms on the IONet.
- Terminal Board Alignment: The module must be installed on the correct slot corresponding to its dedicated termination board (e.g., STAEE). Incorrect slot assignment leads to open-circuit faults or mismatched channel scaling.
- Shielding and Grounding: Terminate all analog signal cable shields at the designated chassis ground studs on the termination board to prevent common-mode noise from corrupting high-resolution measurements.
Frequently Asked Questions
Can the IS215AEPAH1CA be hot-swapped during operation?
Yes, Mark VIe distributed I/O modules support online replacement, provided the system is configured for redundancy and safety procedures for live-circuit maintenance are observed. Verify your specific panel safety guidelines before extraction.
What software is used to configure this module?
Configuration, hardware diagnostics, and channel scaling are performed using GE ToolboxST application software.
What is the function of the “A” suffix in the catalog number?
The letter codes within the GE part numbering system (such as AEPA vs. base board identifiers) denote specific conformal coating levels, hardware feature enhancements, or manufacturing revision tiers. Check the hardware tag on the physical unit for exact configuration details.
