Industrial Gigabit Ethernet Switch 3-Port 1000M RJ45 to 1000M SFP Fiber DIN Rail

Mini Industrial 3-Port 10/100/1000T + 1-Port 100/1000X SFP Gigabit Ethernet Switch

Product Overview:

The LNK-IMC103G-SFP Series is a compact industrial-grade Gigabit Ethernet switch engineered for robust performance in demanding environments. Featuring three auto-negotiation 10/100/1000BASE-T copper ports and one versatile 100/1000BASE-X SFP fiber slot, it enables seamless media conversion and network integration. The SFP interface supports flexible deployment with various pluggable modules, including both single-mode and multi-mode fiber types (single or dual core), for customized long-distance connectivity.

Housed in an IP40-rated rugged metal enclosure, this hardened switch operates reliably across an extended temperature range of -40°C to +75°C, ensuring stable performance in harsh conditions including industrial automation, outdoor surveillance, and transportation systems. It supports both half and full-duplex transmission modes with auto-negotiation for optimal network flexibility and compatibility.

Ideal for network integration between remote locations, this switch provides reliable connectivity for IP cameras, wireless access points, and other network devices. Its compact design allows for easy installation in space-constrained applications while maintaining industrial-grade durability and performance standards, making it perfect for smart city infrastructure, power utility networks, and mobile deployment scenarios.

Features Description:

• Triple Gigabit Copper Ports with Auto-Sensing: Three 10/100/1000BASE-T RJ45 interfaces feature auto MDI/MDI-X detection, enabling plug-and-play deployment without manual cable configuration in mixed-network environments

• Multi-Rate SFP Fiber Slot with Intelligent Detection: Equipped with one auto-sensing SFP port that seamlessly兼容 100Base-FX and 1000Base-X fiber modules, supporting both single-mode and multi-mode transceivers for scalable fiber connectivity

• Adaptive Duplex Operation & Auto-Negotiation: Automatically configures full/half-duplex modes and negotiates optimal transmission speeds (10/100/1000Mbps) for efficient bandwidth utilization across diverse network architectures

• Energy Efficient Ethernet (EEE) Compliance: Reduces power consumption by up to 80% during low-data activity periods while maintaining full compatibility with IEEE 802.3az standards for sustainable operations

• Wide-Range Terminal Block Power Input (12-48VDC): Accepts broad spectrum DC power through industrial-grade screw-terminal connections, ensuring stable operation in environments with voltage fluctuations and power instability

• Rugged IP40 Aluminum Housing: Features industrial-grade metal casing providing electromagnetic shielding, physical protection, and heat dissipation in harsh environments

• Versatile Mounting Options: Supports both DIN-rail and wall-mount installation for flexible deployment in control cabinets, server racks, and space-constrained industrial enclosures

• Extended Temperature Hardened Construction: Operates reliably in extreme environments from -40°C to 75°C (-40°F to 167°F), making it suitable for unheated warehouses, outdoor cabinets, and harsh industrial settings

Application Scenarios

• Industrial Automation and Control Systems: Provides reliable connectivity for PLCs, HMIs, motor drives, and industrial IoT devices in high-EMI manufacturing environments with real-time data transmission requirements

• IP Surveillance and Security Networks: Supports high-resolution IP cameras, NVR systems, and access control devices with fiber backbone connectivity for extended distance monitoring

• Intelligent Transportation Systems (ITS): Enables traffic monitoring, vehicle detection, and roadside communication networks in wide-temperature environments (-40°C to 75°C)

• Outdoor Wireless Deployments: Facilitates WLAN access points, 4G/5G small cells, and microwave links with reliable fiber uplink capabilities in harsh weather conditions

• Power Utility and Energy Infrastructure: Suitable for substation automation, grid monitoring, and renewable energy systems requiring electrical isolation and surge protection

• Building Automation Systems: Supports network integration for environmental controls, smart lighting, and building management applications with flexible SFP connectivity

• Marine and Offshore Applications: Provides corrosion-resistant network connectivity for vessel communication systems and offshore platform monitoring equipment

• Mining and Heavy Industry: Operates reliably in vibration-intensive environments for mining equipment connectivity and remote monitoring systems with industrial-grade durability

Technical Indexes

Ordring Information

Application Display Diagram

Established in 2001 & headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading manufacturer of fiber optic communication and video transmission products in China.

Our main products include:

• Fiber Media Converters
• Industrial Ethernet PoE switchs
•  PoE Injectors & Splitters
• PoE Extenders
• Serial Fiber Converters
• SFP Transceivers
• HDMI Fiber Converters
• DVI Fiber Converters
• HD/3G/6G/12G Fiber Extenders
• CCTV Fiber Optic Converters
• HDMI/ DVI/ VGA/ SDI Ethernet Extenders

With rich experience in providing high quality products in the
telecom and CCTV business, E-link has a large manufacturing factory
in Shenzhen, able to provide cost-effective solutions 

to serve our customers successfully.



   

   

                                                                   
                                                                  
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Since the launch of our products in domestic and international
markets, we have won a good reputation for our high-quality
products and sincere services. Our products are widely applied to

• System of Telecom
• Public Security
• Bank
• Smart City
• Public transportation
• New Energy Developing
• CCTV Monitoring Transmission

We also provide ODM & OEM services and we have cooperated with some famous companies all
over the world. Our own brand "E-link" is also well known in many countries and have distributors there.





   





















































                                                                   
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E-Link quality:

• ISO9001 Quality System
• CE, RoHS, FCC certified 
• 48 hours of weathering test before delivery
• Conduct full-spectrum environmental and electrical testing on all product designs

   





Our knowledgeable sales, technical support and engineering
personnel are dedicated to understanding your needs and designing
products and solutions to meet your needs. We would be happy to
provide you with the best price, quality products and fast
delivery.