GE IS420ESWBH3A Ethernet Switch Module for Mark VIe Control Systems

Features and Highlights

The GE IS420ESWBH3A is a managed industrial Ethernet switch module designed specifically for GE Mark VIe and Mark VIeS control systems. It provides high-speed data communication, network redundancy, and robust environmental durability, making it ideal for mission-critical turbine and process control applications.

Main advantages include:

• 8-Port Managed Ethernet Switch: Supports both copper and fiber connections for flexible network configurations.

• Redundant Power Inputs: Ensures continuous operation in case of power supply failure.

• Industrial-Grade Reliability: Engineered to withstand extreme temperature, vibration, and electrical interference.

• Gigabit Ethernet Support: Enables fast data transfer and system synchronization.

• Built-in Diagnostics: Network monitoring and status LEDs simplify troubleshooting.

• Optimized for GE Control Systems: Seamlessly integrates into the Mark VIe IONet communication network.

• VLAN & SNMP Support: Provides network segmentation, traffic management, and remote diagnostics.

  
  

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Overview

The GE IS420ESWBH3A serves as a key networking component within GE’s Mark VIe control system architecture, ensuring reliable data exchange between control modules, HMIs, and field devices. This switch module enables deterministic and redundant Ethernet communication, a critical feature for maintaining system integrity in turbine control and power generation applications.

Designed to deliver real-time, fault-tolerant communication, it plays a central role in the I/O Network (IONet) of Mark VIe systems, where precise synchronization and continuous data availability are essential.

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Technical Specifications

Parameter	Description
Model Number	IS420ESWBH3A
Manufacturer	General Electric (GE)
Product Type	Managed Ethernet Switch
Series	Mark VIe / Mark VIeS Control Systems
Ports	8 × 10/100/1000Base-T Ethernet Ports (RJ45)
Network Standard	IEEE 802.3, 802.3u, 802.3ab
Data Transfer Rate	Up to 1 Gbps full duplex
Protocols Supported	SNMP, VLAN, Modbus TCP/IP, RSTP
Power Supply	Dual 24 V DC redundant inputs
Power Consumption	Approx. 12 W typical
Operating Temperature	–40°C to +70°C
Storage Temperature	–40°C to +85°C
Humidity	5–95% non-condensing
Mounting Type	DIN-rail or panel mount
Enclosure Protection	IP40 industrial-grade housing
LED Indicators	Power, Link/Activity, Speed, and Fault status LEDs
Certifications	CE, UL, CSA, RoHS, and IEC 61850 compliant

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Structure & Composition

The IS420ESWBH3A is built on a rugged industrial PCB enclosed in a metallic protective housing. The module features:

• Eight Ethernet ports positioned on the front panel for easy access.

• Dual redundant power inputs on the top side to maintain uptime.

• Status LEDs to monitor port connectivity and device health.

• Integrated processor and memory for managing network traffic and configurations.

• Heat-dissipating enclosure that ensures reliable performance in high-temperature environments.

The compact design allows it to be easily installed in Mark VIe control panels or network racks, saving space while maintaining accessibility.

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Applications

The GE IS420ESWBH3A is a vital component in industrial automation and energy systems, ensuring seamless and secure data communication in the following areas:

• Gas and Steam Turbine Control Systems

• Power Generation Plants

• Oil and Gas Facilities

• Petrochemical and Refinery Automation

• Water and Wastewater Management Systems

• Manufacturing Process Control Networks

Its managed switch functionality allows plant operators to prioritize traffic, segment networks, and monitor data flow, improving reliability and cybersecurity across distributed control systems.

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Installation & Maintenance

Installation Steps:

1. Mount the switch on a DIN rail or suitable panel using standard brackets.

2. Connect the dual 24 V DC power supplies for redundancy.

3. Plug in Ethernet cables (Cat5e/Cat6) into the appropriate ports.

4. Configure network settings (IP address, VLAN, RSTP) using GE’s configuration tools.

5. Verify status LEDs for proper power and communication.

Maintenance Tips:

• Regularly inspect cable connections for tightness and corrosion.

• Clean the exterior using a dry cloth to avoid dust buildup.

• Periodically back up switch configuration data.

• Replace network cables showing wear or damage.

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Reliability & Compliance

The IS420ESWBH3A meets IEC 61850 standards for substation and power control communication, ensuring electromagnetic compatibility and operational safety. It is fully tested for vibration, temperature, and surge protection, guaranteeing consistent operation even in the harshest industrial environments.

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Conclusion

The GE IS420ESWBH3A Ethernet Switch Module combines industrial-grade durability, redundant networking, and intelligent management features to provide a dependable communication backbone for GE Mark VIe control systems. Its rugged design, high throughput, and ease of configuration make it an essential choice for reliable data exchange and network integrity in critical automation environments.