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The GE IS421ESWAH1A is an 8-port Ethernet switch from the ESW Series for the Mark VIe control system. It features one multi-mode fiber optic port, which is designed for reliable, medium-distance communication. This switch is crucial for providing a robust network connection between the main controller and various I/O modules in a plant.
Key Features and Applications
This switch is a core component of the Mark VIe’s communication network, offering both flexibility and reliability.
- 8-Port Ethernet Switch: The switch serves as a data hub, managing the flow of information between various devices connected to it. With 8 ports, it can support a significant number of I/O modules, enabling the system to collect a large amount of data from and send commands to field devices in real time.
- One Multi-Mode Fiber Port: The inclusion of a multi-mode fiber optic port is a key feature for industrial environments. Fiber optic cables are immune to electromagnetic interference (EMI), which is common in power plants and industrial facilities. This immunity ensures reliable data transfer over distances up to a few kilometers without signal degradation.
- IONet Protocol: This switch operates on the IONet protocol, a proprietary GE network designed for real-time, low-latency control. This ensures that critical data is delivered quickly and reliably, which is vital for the fast response times required in turbine and generator control.
- System Redundancy: In critical applications, these switches can be 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.
Common Applications
The GE IS421ESWAH1A is commonly used in:
- Power Generation: To link turbine and generator control modules to the main processor, particularly when control panels are located a medium distance from the equipment.
- Oil & Gas: For connecting I/O modules in remote or hazardous areas where EMI resistance is necessary.
- Industrial Plants: In various process control systems where reliable, high-speed communication is required over medium distances.
