Description
The part number IS220UCSAH1A specifies an Embedded Controller Module (UCSA) for the GE / General Electric Speedtronic Mark VIe distributed control system.
Technical Specifications
| Feature | Specification |
| Manufacturer | General Electric (GE) / Emerson Automation / Baker Hughes |
| Product Series | Mark VIe / Speedtronic Control Systems |
| Module Type | Stand-Alone Embedded Controller (UCSA) |
| Microprocessor | Freescale PowerPC (PowerQUICC II PRO @ 667 MHz) |
| Memory | 256 MB DDR SDRAM |
| Operating System | QNX Neutrino (Real-time multitasking OS) |
| Power Requirements | 18 VDC to 32 VDC (Typical consumption: ~12.5 W) |
| Communication Interfaces | Onboard I/O Network (IONet) via dedicated Ethernet ports |
| Storage Medium | CompactFlash storage |
| Operating Temperature | 0°C to 65°C (32°F to 149°F) |
| Hazardous Environment Rating | NFPA Class 1, Division 2 compatible (Zone 2 options) |
Product Overview
The IS220UCSAH1A functions as a primary standalone computer module in heavy industrial environments. It is widely deployed to manage gas, steam, and wind turbines, as well as balance-of-plant (BOP) architectures. Running application code under the deterministic QNX Neutrino operating system, it communicates securely with distributed I/O packs via private Ethernet networks (IONet).
Key Features:
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High-Reliability Architecture: Designed with a rugged, fanless footprint optimized for long-term industrial reliability and durability in harsh ambient conditions.
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Real-Time Processing: Powered by a 667 MHz PowerPC processor to deliver prompt instruction execution and rapid control loop handling.
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Diagnostic & Status Indicators: Equipped with front-panel LED indicators (including Power, Boot, Online, Flash, DC power status, and Diag health checks) to facilitate straightforward local troubleshooting.

IS220UCSAH1A
Core Functional Features
• Freescale PowerQUICC II Pro 667 MHz industrial processor, running QNX Neutrino real-time operating system for deterministic control cycles
• Memory configuration: 256 MB DDR SDRAM + 1 GB Flash storage for control application, trend and fault records
• Rich front-panel communication ports: 6 × 10/100/1000 Mbps Ethernet, USB maintenance port, RS232 serial console
• Independent IONet network links to distributed I/O packs, sampling process signals and output control commands
• Built-in comprehensive hardware self-diagnosis; LED indicators display link activity, module fault and running status
• Fanless passive heat sink design, eliminates fan failure risk, suitable for turbine cabinet environments with vibration and temperature variation
• Supports Time Synchronization (IRIG-B) for millisecond accurate SOE event timestamping
• Compatible with ToolboxST configuration software for programming, trending, protection calibration and troubleshooting
• PCB conformal coating option available, enhances resistance to humidity, dust and temperature cycling
