GE IS420UCSDH1A-PR2
GE IS420UCSDH1A-PR2 Overview
The GE IS420UCSDH1A-PR2 is a U-C-S-D-H (Universal Control System Digital Hub) module used in GE’s Mark VIe/Mark VIe S series safety control systems. It belongs to the IS420 family of high-reliability I/O and communication units. This model is often labeled as UCSDH1 in product codes, while the suffix -PR2 indicates Revision 2 of the product batch, designed mainly to enhance compatibility and reliability.

Key Technical Parameters
| Parameter | Description |
|---|---|
| Model | GE IS420UCSDH1A-PR2 (also written as IS420UCSDH1) |
| Power Supply Voltage | 24 V DC (supports 18 V–30 V DC range) |
| Maximum Output Current | 2 A (single channel) |
| Operating Temperature | –40 °C to +70 °C |
| Storage/Operating Temperature | –40 °C to +85 °C (storage) |
| Dimensions | Approx. 30 mm × 90 mm × 60 mm (UCSCH1A spec) |
| Weight | Approx. 1 kg (UCSBH1A spec) |
| Processor | 32-bit Intel 600 MHz EP80579 |
| Memory / Flash | 1 MB RAM, 2 MB Flash (UCSBH1A spec) |
| I/O Points | 32 digital I/O, 16 analog I/O (UCSBH1A spec) |
| Communication Interfaces | 1 × RS-232, 1 × RS-485, 1 × 10/100 Mbps Ethernet |
| Protection Rating | IP20 (suitable for standard industrial control cabinets) |
Main Functions
- Multiple digital and analog I/O support
- Over-voltage, over-current, and short-circuit protection
- Supports remote monitoring and RS-485/Ethernet communication
- Reliable operation in harsh environments (–40 °C to +70 °C)
Typical Application Scenarios
- Safety control and monitoring for steam turbines and generator sets
- Real-time I/O acquisition for robotics and CNC machinery
- Safety interlocking for process control systems (chemical, petrochemical, etc.)
- Networked control cabinets for smart buildings and industrial automation

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GE Company Introduction
General Electric Company (GE) is a renowned multinational conglomerate with diversified businesses spanning energy, aviation, healthcare, renewable energy, and digital industries. Below are its key details:
1. Company Overview
- Founded: 1892 (merger of Edison Electric Light Company and Thomson-Houston Electric Company)
- Headquarters: Boston, Massachusetts, USA
- Founders: Thomas Edison (technical pioneer), Charles Coffin (business integrator)
- Current CEO: Larry Culp (since 2018)
- Market Cap: ~$120 billion (2023 data, adjusted after spin-offs)
2. Core Business Segments
After strategic restructuring, GE now focuses on three main sectors:
- Aviation (GE Aerospace)
A global leader in aircraft engines and systems, including CFM International’s (joint venture with Safran) LEAP engines. - Healthcare (GE HealthCare)
Spun off in 2023, specializing in medical imaging, ultrasound, and life care equipment (e.g., CT, MRI machines). - Energy Transition (GE Vernova)
Launched in 2024, combining renewable energy (wind, hydro), gas power, and grid solutions.
3. Historical Milestones
- Early 1900s: Pioneered electrification, inventing the first commercial incandescent lamp and X-ray machine.
- 1970s: Entered aviation with the GE90 jet engine.
- Post-2008: Restructured after the financial crisis, divesting GE Capital.
- 2015-2020: Pushed digital transformation with the Predix industrial IoT platform.
- 2020s: Spun off non-core assets (e.g., appliances, biopharma) to focus on advanced manufacturing.
4. Presence in China
Since 1906, GE has contributed to projects like the Three Gorges Dam and COMAC C919, with multiple R&D and manufacturing sites (e.g., Beijing, Shanghai, Wuxi).
5. Recent Developments (2023-2024)
- Completed spin-offs of GE HealthCare and GE Vernova, leaving GE Aerospace as the remaining public entity.
- Accelerated sustainable tech R&D, including hydrogen-powered turbines and hybrid-electric aircraft engines.
6. Corporate Culture & Legacy
- Slogan: “Imagination at Work”
- Achievements: Holds numerous Nobel-level innovations and consistently ranks in the Fortune Global 500.
Through continuous transformation, GE aims to lead in low-carbon and high-tech industrial solutions.











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