Introduction of Hirschmann MM20 – T1T1T1EBHH Managed Ethernet Switch
Hirschmann has rich experience in industrial networking, MM20-T1T1T1EBHH managed Ethernet switch is designed for harsh industrial environments, providing network communication security for complex scenarios.

Brand Background
Founded in 1924 in Esslingen, Germany, Hirschmann built the world’s first fibre-optic Ethernet in 1984 and introduced ring-redundant Ethernet in 1990, which significantly improved network stability, and continued to expand its business and introduce new products after it was incorporated into Biotronik in 2007. Today, the company’s products are used in a wide range of industries, with a strong presence in the power and transport sectors, making it a leading brand in industrial networking solutions.

Performance Characteristics
High reliability: Adopting redundant power supply design, when the main power supply fails, the backup power supply can be quickly switched to prevent the industrial network from being paralysed due to power failure. Supports link aggregation, increasing bandwidth while providing redundancy, and automatic data switching and transmission in case of link failure. The switch is equipped with self-diagnostic function, which can monitor the hardware status in real time and notify the operation and maintenance personnel through indicators and alarms when problems are found, thus facilitating rapid investigation and repair.

Flexible management: Supporting web interface management, you can input IP address to set port, VLAN, QoS and other parameters conveniently. Professional engineers can also use CLI for in-depth configuration and troubleshooting. In large-scale industrial networks, multiple switches can be centrally managed by dedicated software to achieve comprehensive control; VLAN delineation can isolate different production networks, optimise traffic, reduce broadcast storms, and safeguard the transmission of business-critical data; and the QoS function can set the priority according to the importance of the data to ensure that critical data is transmitted first.

Strong adaptability: The operating temperature range is from – 40℃ to + 70℃, which can be stably operated in hot or cold environments. Special shielding and filtering technologies effectively resist electromagnetic interference in industrial environments, ensuring accurate data transmission. Supports DIN rail, wall mounting, rack mounting and other installation methods, suitable for different application scenarios.

Specification
Port Configuration: Equipped with Ethernet electrical port (RJ45) to connect twisted pair equipment, suitable for short distance, low interference scenarios; with Ethernet optical port (such as SC, ST), for long distance, anti-interference transmission. The port rate supports 10Mbps, 100Mbps, 1Gbps, which can meet the transmission requirements of different devices.
Protocol support: Comprehensive support for TCP/IP, UDP, ICMP and other common network protocols, which can be seamlessly connected with devices and systems of different ages and standards, and integrated into complex industrial networks.

Protection level: It may have a high protection level, such as IP65, which can prevent dust and resist low-pressure water jet; and IP67, which can work normally when submerged in water for a certain period of time, and can adapt to dusty, humid and other harsh industrial environments.
Supplementary Models and Comparison
The MM20-M4M4T1T1SAHH switches of the same series have unique port configurations and are suitable for industrial automation and transport scenarios. In contrast, the MM20 – T1T1T1EBHH varies in port type, number, or rate combinations to meet specific scenarios. of the RS series, the RS20 – 0400 is suitable for small industrial networks, and the RS30 series is suitable for high-speed transmission of large data volumes. The modular MS20 series is highly flexible, allowing port densities and configurations to be adjusted as required. the MM20 – T1T1T1EBHH offers a competitive advantage in specific industrial scenarios due to its features.

Scenario Applications
Industrial automation: connecting PLCs, sensors, actuators, industrial robots and other equipment, ensuring efficient data transmission in production lines, realising automation control and remote monitoring, and improving production efficiency and quality.
Intelligent Transportation: Ensure stable communication between train and ground signal system in rail transit, and use it for video monitoring transmission in carriages. Connecting related equipment in intelligent car parks to improve management efficiency.
Energy and Power: Ensure the data transmission of power equipment in substations and power plants, help the construction of smart grid, and realise remote meter reading and power consumption data analysis.
Intelligent building: connect lighting, air conditioning, security, access control and other systems to achieve intelligent management and create a comfortable and safe environment.
Mining industry: connect ventilation, transport, safety monitoring and other equipment in the harsh environment of mines to ensure stable communication and enhance mining safety and efficiency.
Offshore platform: designed with special protection to withstand salt spray corrosion, connecting all kinds of equipment on the platform to ensure smooth data communication.