Ex Ethernet modules are special devices that enable data transmission in Ethernet networks in explosion-hazardous zones. They comply with ATEX and IECEx standards, which specify requirements for electrical and electronic equipment operating in explosive atmospheres.

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Why are ATEX certified Ethernet modules needed?
Ethernet networks are increasingly used in industry because they offer many advantages, such as:
- high speed and reliability of data transmission;
- possibility of integrating various systems and devices;
- flexibility and scalability;
- saving costs and time for installation and maintenance.
However, Ethernet networks are not safe in hazardous areas because they can create a spark or excessive heat that could ignite a flammable gas, steam or dust-air mixture. Therefore, ordinary network devices such as switches, routers, network cards or cables cannot be used in such conditions.
To ensure safe and uninterrupted communication in Ethernet networks in potentially explosive atmospheres, Ex Ethernet modules are needed. These are devices that meet stringent explosion resistance criteria and prevent sparks or excessive heating. Ex Ethernet modules are typically powered by a safe voltage that does not exceed 50 V and have a limited output power that cannot ignite a flammable atmosphere.
What are the types and applications of Ex Ethernet modules?
Ex Ethernet modules can be divided into two main categories:
Ex Ethernet modules for mounting on a DIN rail – these are devices that are mounted on a special metal rail inside a control or distribution cabinet. They are used to connect various devices in an Ethernet network, such as computers, controllers, sensors, cameras, etc. An example of such a module is the Atex Certified Ethernet Ex switch module, which offers 4 Ethernet Ex ports and 2 standard Ethernet ports.
Ex Ethernet modules for wall mounting – these are devices that are mounted directly on a wall or other structural element in an explosion hazard zone. They are used to connect devices in the Ethernet network with external devices such as antennas, modems, routers, etc. An example of such a module is the Ethernet Ex converter module from Atex Certified, which offers 1 Ethernet Ex port and 1 fiber optic port.
Ex Ethernet modules are used in many industries and sectors with potentially explosive atmospheres, such as:
- chemical and petrochemical industry;
- pharmaceutical and biotechnology industry;
- food and beverage industry;
- wood and paper industry;
- mining and metallurgy industry;
- energy and renewable industries;
- transport and logistics;
- environmental protection and emissions monitoring.
ATEX certified Ethernet modules enable the implementation of various functions and tasks in Ethernet networks, such as:
- remote access and control;
- monitoring and diagnostics;
- visualization and alarming;
- data and image transmission;
- integration of systems and devices.
Ex Ethernet modules are essential devices for building safe and reliable Ethernet networks in explosion-hazardous zones. They comply with ATEX and IECEx standards, which guarantee their resistance to explosions and prevent sparks or excessive heating. Ex Ethernet modules are divided into DIN rail modules and wall-mount modules, depending on the location and method of installation. Ex Ethernet modules are used in many industries and sectors with potentially explosive atmospheres and enable the implementation of various functions and tasks in Ethernet networks.