The GE IS420ESWBH3A is an industrial-grade Ethernet switch module (IONet Switch) used in the GE Mark VIe Control System.
It belongs to the ESWB series (Ethernet Switch Board) and provides reliable, high-speed network communication between controllers, I/O modules, and operator interfaces (HMIs).
The IS420ESWBH3A plays a critical role in the IONet communication network of the Mark VIe/Mark VIeS system, ensuring robust data transfer and redundancy across turbine and process control environments.
Technical Specifications
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Item
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Description
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Model Number
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IS420ESWBH3A
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Product Name
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Industrial Ethernet Switch (IONet Switch Module)
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Manufacturer
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General Electric (GE)
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Series
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Mark VIe / Mark VIeS Control System
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Function Type
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Industrial Ethernet communication switch
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Copper Ports
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8 × 10/100Base-TX RJ-45
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Fiber Ports
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2 × 100Base-FX LC (multimode fiber)
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Power Supply
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24 VDC (operating range: 18–32 VDC)
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Power Consumption
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Typical 10 W
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Mounting Type
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DIN-rail installation
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Cooling Method
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Fanless, natural convection
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Key Features
1. Supports redundant ring network architecture for improved system reliability
2. Enables full-duplex communication, auto-negotiation, and flow control
3. Offers hybrid copper and fiber connectivity to suit various network layouts
4. Designed for high-temperature and 24/7 continuous operation environments
5. Fully compatible with GE Mark VIe I/O packs such as EPDM, EPBP, and EPMC
Difference Between IS420ESWAH3A and IS420ESWBH3A
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Specification
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IS420ESWAH3A
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IS420ESWBH3A
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Copper Ports
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8 × RJ-45
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8 × RJ-45
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Fiber Ports
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1 × LC fiber
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2 × LC fiber
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Port Type
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Single fiber port
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Dual fiber ports (enhanced redundancy)
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System Compatibility
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Mark VIe / Mark VIeS
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Mark VIe / Mark VIeS
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Network Reliability
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Standard level
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Enhanced reliability
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Typical Use Case
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Standard IONet node communication
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High-speed, redundant control network link
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✅ Conclusion:
The IS420ESWBH3A is an enhanced version of the IS420ESWAH3A.
With dual fiber ports, it provides greater network redundancy and data reliability, making it ideal for mission-critical industrial control systems that require high uptime and robust communication.
What happens next?
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Your quote
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