Description
⚙️ Product Description
The GE IS420UCSCH2A is a UCSC controller module for the GE Mark VIe control platform. It is identified as a dual-core high-performance MarkStat controller and uses a 1600 MHz dual-core AMD G-Series processor architecture with 2 GB memory. The controller provides real-time control processing and communication for Mark VIe turbine and industrial control applications. It communicates with distributed I/O through GE’s IONet architecture and provides multiple Ethernet interfaces together with USB connectivity. The controller is designed for compact installation and can be deployed in simplex, dual, or redundant control architectures depending on the overall system configuration. GE documentation also identifies the IS420UCSCH2A among approved Mark VIe controller models for power-generation control applications. The supplied condition is New Surplus / NSFP, subject to the actual condition of the unit in stock.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS420UCSCH2A |
| Series | Mark VIe / Mark VIeS |
| Controller Family | UCSC |
| Product Name | Dual-Core High-Performance MarkStat Controller |
| Product Type | Controller Module |
| Processor | 1600 MHz Dual-Core AMD G-Series |
| Memory | 2 GB |
| Communication | Ethernet / IONet |
| Ethernet Ports | 5 |
| USB Ports | 2 |
| Operating System | QNX Neutrino real-time operating system |
| Configuration | Simplex / Dual / Redundant architectures, system dependent |
| Power | Verify system-specific DC supply requirements before installation |
| Place of Origin | USA / GE manufacturing supply chain |
| Product Status | New Surplus / NSFP |
| Dimensions | Compact Mark VIe controller format; verify installation dimensions |
| Weight | Approx. 1 kg reference value; verify packed weight |
| Discontinued | Legacy/active-support status should be confirmed against the installed Mark VIe revision |
🔧 Functional Features
• Dual-core 1600 MHz AMD G-Series processing architecture
• 2 GB onboard memory
• Designed for GE Mark VIe control systems
• Supports real-time control processing
• Multiple Ethernet interfaces for control and IONet communication
• USB interfaces for service and system functions
• QNX Neutrino real-time operating environment
• Suitable for turbine, generator, compressor, and other industrial control applications
• Can be incorporated into simplex, dual, or redundant control architectures according to system design
❓ Frequently Asked Questions
Q1: What is the IS420UCSCH2A used for?
A: It is a GE Mark VIe UCSC controller module used for real-time control processing and network communication in industrial and power-generation control systems.
Q2: Is the IS420UCSCH2A a MarkStat controller?
A: Yes. The model is associated with GE’s high-performance MarkStat controller family within the Mark VIe platform.
Q3: What processor does this controller use?
A: The IS420UCSCH2A is identified with a 1600 MHz dual-core AMD G-Series processor.
Q4: How much memory does it have?
A: The commonly specified configuration has 2 GB memory.
Q5: How does the controller communicate with Mark VIe I/O?
A: It uses Ethernet-based communication and GE’s IONet architecture to exchange control and I/O data.
Q6: Is this controller compatible with every Mark VIe system?
A: Compatibility depends on the controller revision, application software, firmware, I/O architecture, and system configuration. Verify the complete part number and installed system documentation before replacement.
Q7: What should be checked before installation?
A: Confirm the controller part number, hardware revision, firmware/software requirements, network configuration, power requirements, and redundancy architecture. Backup and verify the existing configuration before replacing a running controller.
🛠️ Troubleshooting & Safety
If the controller fails to start, check the DC power supply, status LEDs, Ethernet/IONet connections, network configuration, and system diagnostics. Communication problems may result from incorrect network addressing, damaged cables, incompatible firmware, or an I/O network configuration issue. For replacement work, isolate power according to the site’s electrical procedures and use appropriate ESD protection. Do not connect or disconnect controller/network wiring while energized unless the system documentation specifically permits that operation.
⭐ Recommended Same-Brand GE Models
- GE IS420UCSCH1A — Mark VIe Controller Module
- GE IS420UCSCH1B — Mark VIe Controller Module
- GE IS420UCSCH1C — Mark VIe Quad-Core Controller
- GE IS420UCSCH2B — Mark VIe MarkStat Controller
- GE IS420UCSCH2C — Mark VIe MarkStat Controller
- GE IS420UCSEH2A — Mark VIe Controller Module
- GE IS420UCSEH2B — Mark VIe Controller Module
- GE IS420UCSEH2C — Mark VIe Controller Module
- GE IS420UCSEH2E — Mark VIe Standalone Controller Module
- GE IS420UCSBH1A — Mark VIe Controller Module
- GE IS420UCSBH3A — Mark VIe High-Performance Controller
- GE IS420UCSBH4A — Mark VIe Controller Module
- GE IS420UCSBS1A — Mark VIe Safety Controller
- GE IS420UCPAH1A — Mark VIe Control Processor Module
- GE IS220UCSAH1A — Mark VIe Controller Module



