Port Configuration and Connectivity
Multiple Port Types: The switch is equipped with a wide variety of ports to suit various connectivity needs. Among them, 4 Ethernet electrical ports (RJ45 connector) make it easy to connect to twisted-pair devices, such as industrial computers and programmable logic controllers (PLCs) in the workshop. This is a cost-effective connection for short distances and weak electromagnetic interference. It also has 4 Ethernet optical ports (may be SC, ST, etc.). Fibre optic ports have significant advantages in terms of long distance data transmission and resistance to electromagnetic interference. In large-scale factories, where different areas are far apart and there are many sources of electromagnetic interference, the fibre-optic ports with fibre-optic cables ensure stable, high-speed data transmission, effectively avoid signal attenuation and interference, and effectively guarantee the reliability of data transmission.

Flexible Port Expansion: The MM20-M4M49999SAHH switch is designed with future expansion needs in mind. Its architecture allows for a certain degree of port expansion through the addition of modules or the use of cascading. For example, when an organisation expands its production scale and needs to connect more devices, it can easily cascade another switch of the same type or compatible to increase the number of available ports to meet the growing demand for network connectivity without a major redesign of the entire network architecture.

Powerful Network Management
Multiple management paths: The switch supports management through a web interface, where users simply enter the IP address of the switch into a browser to access an intuitive management interface. Here, users can conveniently set various parameters of the switch, such as port configuration, VLAN delineation, QoS policy, etc. It also supports command line interface. Meanwhile, it also supports command line interface (CLI) management, which provides more accurate and efficient configuration means for professional network engineers who are familiar with command operations, and is suitable for in-depth configuration and troubleshooting in complex network environments. In addition, the switch may also support centralised management through dedicated network management software. In large industrial networks, administrators can use this software to monitor and manage multiple switches in different areas, significantly improving management efficiency.

Fine VLAN Delineation: VLAN (Virtual Local Area Network) function is one of the highlights of the switch. Through VLAN segmentation, users can divide a physical network into multiple logically independent virtual LANs. In industrial environments, different production processes, departments, or devices may need to be isolated from each other to enhance network security and management efficiency. For example, dividing the network where the production equipment is located and the network in the office area into different VLANs can prevent viruses or unauthorised access in the office network from affecting the normal operation of the production network.

At the same time, VLAN delineation can also optimise network traffic, reduce interference from broadcast storms, and improve overall network performance.
QoS Quality of Service Assurance: MM20 – M4M49999SAHH switches support QoS (Quality of Service) settings. In industrial networks, different types of data traffic have different requirements on network bandwidth and transmission delay. For example, real-time equipment control data is extremely sensitive to transmission delay and needs to be prioritised, while some non-critical data, such as periodic inspection reports of equipment, requires relatively low transmission speed. With the QoS function, administrators can set different priorities for different traffic according to the type and importance of the data, ensuring that business-critical data is transmitted first, and ensuring the stable operation of industrial production processes.

Excellent Adaptability to Industrial Environments
Highly Reliable Design: The switch adopts a redundant design to address various challenges in industrial environments. In terms of power supply, it is usually equipped with redundant power modules or supports dual power inputs. When the main power supply fails, the backup power supply can be seamlessly switched over in a very short time to guarantee the continuous and stable operation of the switch and avoid network paralysis due to power interruption, which is crucial for some critical industrial production processes that cannot be easily shut down. In terms of link redundancy, it supports link aggregation technology, which bundles multiple physical links into one logical link, not only increasing link bandwidth but also providing link redundancy. When one of the physical links fails, data can be automatically switched to other normal links for transmission, ensuring the continuity of network communication.

Wide Temperature Operating Range: The temperature environment in industrial sites is complex and variable, ranging from high-temperature metallurgical workshops to cold storage environments, the MM20 – M4M49999SAHH managed Ethernet switches have a wide operating temperature range and are able to operate in a wide temperature range, generally from – 40°C to + 70°C or even more severe temperature conditions. This enables it to operate stably in a variety of extreme temperature environments, guaranteeing reliable communication in industrial networks.

Strong anti-electromagnetic interference capability: There are a large number of electromagnetic interference sources in industrial environments, such as motors, inverters and other equipment. To cope with this challenge, the switch adopts special shielding and filtering technologies in its hardware design, which can effectively resist electromagnetic interference and ensure the accuracy and stability of data transmission. Even in a strong electromagnetic interference environment, such as near a power substation or a large-scale machining workshop, the switch can still work normally, avoiding data loss or incorrect transmission due to electromagnetic interference.

Wide range of application scenarios
Industrial automation production line: In the field of industrial automation, the switch is used to connect all kinds of equipments in the production line, such as PLC, sensors, actuators, industrial robots, etc., to build a stable and reliable industrial control network. With the help of the switch, the devices can exchange data quickly and accurately, realising the automated control and cooperative operation of the production process. For example, in the automated assembly line of an automobile manufacturing factory, many robots, sensors and control systems frequently interact with each other, and MM20 – M4M49999SAHH switches can ensure the efficient transmission of these data, avoiding production stagnation or errors due to delays in data transmission, and dramatically improving production efficiency and product quality.

Intelligent transport systems: In the field of intelligent transport, especially rail transport, the switch undertakes key data transmission tasks. During train operation, the train control system needs to communicate with the signal system on the ground in real time to obtain important information such as line signals, speed limits, turnout status, etc., in order to ensure the safety and efficiency of train operation.MM20 – M4M49999SAHH switch can ensure the fast and stable transmission of these key data between the train and the ground, so as to achieve the precise control and scheduling of the train.

Meanwhile, in the train compartment, the real-time video data collected by the video surveillance system also needs to be transmitted to the monitoring centre through this switch, so as to discover and deal with abnormal situations in the compartment in time. In addition, in the intelligent car park management system, the switch can be connected to the vehicle detection equipment, gate controller and management server, etc., to achieve rapid transmission and processing of vehicle access information, to enhance the management efficiency and intelligent level of the car park.

Energy and Power Industry: In the energy and power industry, the switch is widely used in substations, power plants and all aspects of the smart grid. In substations and power plants, various power equipments, such as transformers, circuit breakers, generators, etc., their operation status data and power parameters need to be transmitted to the monitoring centre in real time.MM20 – M4M49999SAHH switches can guarantee the stable and high-speed transmission of these data in the complex electromagnetic environment, and the operation and maintenance personnel can grasp the operation of equipments in real time through the system in the monitoring centre, carry out fault warning and equipment maintenance, and ensure that the power system can be maintained in real time. early warning and equipment maintenance to ensure the reliable operation of the power system.

In the construction of smart grid, a large number of smart meters upload users’ electricity consumption data to the management system of the power company through this switch, so as to achieve remote meter reading and electricity consumption data analysis. Based on these data, the power company can carry out operations such as load forecasting, electricity billing and optimal dispatching of the power grid, which improves the intelligent management level of the power system, reduces operating costs and improves the quality and reliability of power supply.

Intelligent building field: In intelligent buildings, the switch becomes a key component in realising intelligent building management. It can connect the lighting system, air conditioning system, security system, access control system and other sub-systems in the building. By connecting with the lighting system, it can realise intelligent control of the lighting equipment according to the ambient light and personnel activities by using the data transmitted by the switch to automatically adjust the brightness of the light and the switching status, so as to achieve the dual goals of energy saving and comfort.

When connected with the air conditioning system, the switch can transmit real-time indoor temperature, humidity and other environmental parameters, and the air conditioning system automatically adjusts the operation mode according to these data to provide users with a comfortable indoor environment and achieve energy saving and emission reduction at the same time. In terms of security system, the switch quickly transmits video data collected by cameras and card swipe information from the access control system to the monitoring room to safeguard the safety of people and property in the building. Through the integrated control of each subsystem by the switch, it realises the comprehensive intelligent management of the building and creates a more convenient, comfortable and safe living and working environment for users.