Description
The Hirschmann MM20-M4M4T1T1SBH is a high-performance, managed Layer 2 industrial Ethernet switch belonging to Hirschmann’s premium MICE MM20 series. Developed by Belden Hirschmann, a leading brand in industrial networking solutions, this compact switch is purpose-built for harsh industrial environments where stable data transmission, flexible port expansion and long-term operational reliability are indispensable. Featuring a hybrid port configuration combining copper Ethernet ports, fiber SFP slots and a serial communication port, it seamlessly integrates modern Ethernet devices and legacy serial equipment. With ruggedized mechanical design, wide-temperature adaptability and redundant power supply design, this switch is widely applicable to industrial automation, rail transportation, new energy, and remote monitoring systems, delivering consistent and efficient network operation under extreme working conditions.
Hirschmann MM20-M4M4T1T1SBH
Core Product Features
2.1 Rugged Industrial-Grade Construction
The switch adopts a high-strength metal housing with an IP30 ingress protection rating for the main body (IP20 for connectors), effectively resisting dust accumulation and minor mechanical impact. It passes strict industrial vibration and shock tests, supporting 5g vibration resistance (compliant with IEC 60068-2-6) and 15g shock resistance (compliant with IEC 60068-2-27), ensuring stable operation in vibrating industrial scenarios such as production lines and rail transit equipment.
2.2 Flexible Hybrid Port Layout
Equipped with a diversified port combination, the device realizes multi-type signal access: 4 gigabit copper ports for conventional Ethernet device connection, 4 SFP fiber slots for long-distance anti-interference fiber transmission, and 1 RS232/TTL serial port for compatibility with traditional serial communication equipment. This integrated design simplifies network architecture and reduces additional wiring costs for equipment upgrading.
2.3 Advanced Network Redundancy & Management
Supports mainstream industrial network redundancy protocols including MRP (Media Redundancy Protocol) and RSTP, achieving rapid network fault recovery to avoid communication interruption. It is embedded with complete network management functions such as VLAN division, QoS traffic optimization and port mirroring. Users can conduct remote monitoring and configuration through web interface (HTTP/HTTPS), CLI command line (SSH/Telnet) and Hirschmann HiVision™ management suite, realizing intelligent network operation and maintenance.
2.4 Reliable Power Supply Design
Designed with dual redundant DC power input interfaces to prevent power failure caused by single power supply damage. It integrates multiple protection mechanisms including reverse polarity protection, overvoltage protection and surge protection (EN 61000-4-5), which can effectively resist voltage fluctuation and electromagnetic interference in complex industrial power supply environments.
2.5 Wide Environmental Adaptability
It has an ultra-wide operating temperature range from -40°C to +75°C, and the storage temperature ranges from -40°C to +85°C. It can maintain stable working performance in high-temperature workshops, low-temperature outdoor stations and other extreme environments. The applicable humidity is 5% to 95% (non-condensing), adapting to humid industrial working conditions.
Hirschmann MM20-M4M4T1T1SBH
Detailed Technical Specifications
3.1 Basic Performance Parameters
| Parameter Item | Technical Data |
|---|---|
| Product Model | MM20-M4M4T1T1SBH |
| Switching Layer | Layer 2 Managed Switch |
| Switching Capacity | 12 Gbps |
| Packet Forwarding Rate | 8.9 Mpps |
| MAC Address Table Capacity | 8,000 Entries |
| Maximum Jumbo Frame | 9,216 Bytes |
| Communication Standards | IEEE 802.3, 802.1Q, 802.1p, 802.1D, 802.1w |
3.2 Port Configuration Parameters
| Port Type | Quantity & Detailed Parameters |
|---|---|
| Copper Ethernet Port | 4 × 10/100/1000Base-T(X) RJ45 ports; support auto-negotiation and auto-MDI/MDI-X |
| Fiber SFP Slot | 4 × 100/1000Base-X SFP slots (LC connector); compatible with single-mode/multimode optical modules |
| Serial Communication Port | 1 × RS232/TTL port (DB9 connector); maximum baud rate 115.2 kbps |
3.3 Power Supply Parameters
| Power Parameter | Specification |
|---|---|
| Input Voltage Range | 12 – 48 V DC (dual redundant inputs) |
| Maximum Power Consumption | 8 W (without SFP optical modules) |
| Protection Grade | Reverse polarity, overvoltage, surge protection |
3.4 Environmental & Mechanical Parameters
| Item | Technical Specification |
|---|---|
| Operating Temperature | -40°C ~ +75°C |
| Storage Temperature | -40°C ~ +85°C |
| Ambient Humidity | 5% – 95% (Non-condensing) |
| Ingress Protection Rating | IP30 (Housing), IP20 (Connectors) |
| Installation Method | DIN-Rail mounting / Wall mounting |
| Weight | Approx. 0.65 kg |
| Dimensions (L × W × H) | 120 mm × 85 mm × 45 mm |
Hirschmann MM20-M4M4T1T1SBH
Certification Compliance
This industrial switch has passed multiple authoritative industry certifications to meet global industrial safety and electromagnetic compatibility standards. The main certifications include safety certifications UL 60950-1 and EN 62368-1, EMC certifications FCC Part 15 and CE certification. In addition, it complies with industrial professional standards IEC 61850-3 and IEEE 1613, which can meet the strict networking requirements of power industry and industrial automation engineering, ensuring product safety, stability and compatibility in global application scenarios.
Application Scenarios
- Industrial Automation: Connect PLCs, HMIs, sensors and industrial robots to build stable on-site industrial control networks, supporting real-time data transmission of production lines.
- Rail Transportation: Applied to vehicle-mounted communication and track signaling systems, adapting to vibration and temperature changes in rail transit operation.
- New Energy Industry: Deployed in wind turbines, photovoltaic power stations and energy storage systems to realize remote monitoring and data collection of power equipment.
- SCADA Remote Monitoring: Compatible with legacy serial monitoring equipment, realizing serial-to-Ethernet protocol conversion for remote data transmission of unattended stations.
- Smart Machinery & Equipment: Used in packaging machinery, mining equipment and other industrial machinery to build compact and reliable on-board network systems.
Product Advantages & After-sales Support
The MM20-M4M4T1T1SBH stands out among industrial switches with its compact size, hybrid multi-port design and ultra-high environmental adaptability. Compared with ordinary commercial switches, it has stronger anti-interference ability and longer service life, eliminating frequent equipment maintenance caused by harsh environments. The embedded intelligent management function simplifies network deployment and fault diagnosis, reducing enterprise operation and maintenance costs.
In terms of after-sales service, this product is equipped with a 5-year official manufacturer warranty. Hirschmann provides global 24/7 professional technical support and free firmware upgrade services. Users can obtain detailed operation manuals, technical documents and compatibility consultation through the official platform to ensure long-term stable operation of the equipment.
Conclusion
As a high-quality industrial managed switch, the Hirschmann MM20-M4M4T1T1SBH integrates gigabit copper ports, fiber expansion slots and serial ports, combining rugged industrial performance, flexible networking capabilities and intelligent management functions. Its compact structure, wide temperature resistance and redundant power supply design make it perfectly adapt to various complex and harsh industrial scenarios. Whether it is industrial automation upgrading, transportation communication construction or new energy monitoring system deployment, this switch can provide reliable, efficient and low-latency network connection solutions, which is an ideal networking device for medium and small-scale industrial network systems.
