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The GE IS420ESWAH3A is an 8-port IONet switch designed for the Mark VIe control system. Unlike other models, it does not have fiber optic ports, relying instead on standard copper Ethernet connections. This switch is a critical component for managing high-speed, real-time communication between the main controller and various I/O modules, but is best suited for shorter distances within a control cabinet or a local area.
Key Features and Applications
The IS420ESWAH3A is a core part of the Mark VIe’s communication network, offering a cost-effective solution for local data traffic.
- 8-Port IONet Switch: The switch acts as a central hub for the IONet (I/O Network), routing data traffic efficiently between connected devices. Its 8 ports allow it to connect to numerous I/O modules and other network devices, enabling the control system to collect data from and send commands to a wide array of field devices.
- Copper-Based Connectivity: The lack of fiber optic ports means this model uses standard Ethernet cables (copper) for all its connections. This makes it a more affordable and straightforward option for applications where long-distance, EMI-resistant communication isn’t a primary concern. It’s ideal for interconnecting modules within the same control panel.
- IONet Protocol: The switch operates on the IONet protocol, a proprietary GE network designed for high-speed, real-time control. This protocol ensures that critical data is delivered with minimal latency, which is essential for the fast response times required in turbine and generator control.
- System Redundancy: In critical applications, the IS420ESWAH3A is often deployed in redundant pairs. This configuration ensures that if one switch fails, the other can take over seamlessly, preventing communication loss and maintaining continuous control of the system.
The GE IS420ESWAH3A is commonly used in:
- Power Generation: To link turbine and generator control modules to the main processor, particularly within a single control cabinet.
- Oil & Gas: For connecting I/O modules in local control rooms or non-hazardous areas.
- Industrial Plants: In various process control systems where high-speed, reliable communication is required over short to medium distances.
