Industrial Ethernet switches are built to endure extreme temperature variations, typically ranging from -20°C to 70°C. Their robust design ensures resistance to external disturbances and often allows for natural cooling of sensitive internal components, maintaining optimal performance even under high thermal stress.
These devices are constructed using high-quality, reliable components. Unlike commercial switches that may use fans or electrolytic capacitors—components with limited lifespans and potential reliability issues—industrial switches avoid such elements to ensure long-term stability and performance in demanding environments.
Who needs an industrial Ethernet switch? Many critical applications benefit from the use of Industrial Ethernet. Here are some examples:
One key advantage of Industrial Ethernet is its ability to isolate the plant floor's equipment layer from office computers, acting as a "leveling" network. This setup makes it feel as though all devices—PCs, servers, PLCs, sensors, actuators, and more—are on the same network level. This is due to strict control over data transfer and the first-come, first-served nature of Ethernet communication. By connecting both plant computers and equipment to the same LAN, engineers can access the internet while enabling seamless communication between factories and offices via email. It also allows business offices and MIS teams to monitor the health of the plant floor network. However, one downside of full connectivity is the risk of non-essential traffic like emails, ICQ, or web browsing interfering with critical control signals. Industrial Ethernet switches help prevent this by isolating important control devices within their own collision domains, ensuring that only necessary data flows freely within those segments.
Another common application involves standalone devices connected individually to a switch port, isolating each device into its own collision domain. For instance, a control engineer might connect a PLC and a sensor/actuator through a multi-port Ethernet switch. In this configuration, the switch largely isolates the control activities from other parts of the network, allowing engineers to access devices remotely without compromising the integrity of the control system. This setup also enables high-speed communication between two separate collision domains, improving overall network efficiency and reliability.
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