Industrial PoE Switch 4 x 802.3at PoE + SFP Fiber 12~48VDC Input Voltage Booster

Mini Industrial 4-Port 10/100/1000T 802.3at PoE + 1-Port 100/1000X SFP Ethernet Switch with 12~48VDC Input and Voltage Booster

Product Overview:

The LNK-IMC104GP-SFP Series is a compact industrial-grade Gigabit Ethernet switch engineered for high-performance networking in demanding environments. Featuring four 10/100/1000BASE-T ports with IEEE 802.3at PoE+ support, it delivers up to 30W per port to power devices such as IP cameras, wireless access points, and industrial sensors. The integrated 100/1000Base-X SFP slot supports flexible fiber connectivity using single-mode or multi-mode transceivers for long-distance, noise-immune network expansion.

Equipped with wide-range 12~48VDC input and advanced voltage booster technology, this switch ensures stable operation in solar-powered systems, renewable energy applications, and mobile deployments with fluctuating power sources. Its hardened design features an IP40-rated metal housing that withstands extreme temperatures (-40°C to 75°C), vibration, and shock, making it suitable for harsh outdoor and industrial environments.

This unmanaged switch offers plug-and-play operation while meeting CE, FCC, and industrial standards. It undergoes rigorous 100% burn-in testing to guarantee reliability in critical applications including intelligent transportation systems, smart grid networks, and remote monitoring installations. The compact form factor supports both DIN-rail and wall-mount installation, providing a cost-effective solution for industrial Ethernet connectivity in space-constrained applications.

Features Description:

• Auto-Detecting SFP Fiber Slot: Features 100/1000BASE-X SFP interface with automatic module detection, supporting both single-mode and multi-mode fiber transceivers for flexible network expansion

• Quad Gigabit PoE+ Ports with Auto-Sensing: Four 10/100/1000BASE-T RJ45 ports with auto MDI/MDI-X and IEEE 802.3at PoE+ support, delivering up to 30W per port for connected PDs

• Wide Voltage Input with Power Boosting: Accepts 12-48VDC input with integrated voltage booster technology, ensuring stable operation in solar, vehicular, and unstable power environments

• Advanced Flow Control Support: Implements 802.3x flow control mechanism to prevent data packet loss and optimize network traffic management

• Dual Mounting Flexibility: Supports both DIN-rail and wall-mount installation for versatile deployment in control cabinets and space-constrained industrial settings

• Dynamic PoE Power Management: Provides intelligent power allocation with 120W total budget at 48VDC, 90W at 24VDC, and 60W at 12VDC input voltage

• Industrial-Grade IP40 Protection: Features dustproof, rugged high-strength metal casing with EMI shielding and enhanced durability for harsh environments

• Extended Temperature Resilience: Operates reliably in extreme conditions from -40°C to 80°C (-40°F to 176°F), suitable for outdoor and unregulated environments

Application Scenarios

• Solar-Powered and Renewable Energy Systems: Provides reliable connectivity for solar monitoring stations, wind farm controls, and remote power installations utilizing wide voltage input (12-48VDC) and booster functionality

• Outdoor Wireless and Surveillance Networks: Supports high-power IP cameras, wireless access points, and security devices in ITS, perimeter protection, and smart city infrastructure with PoE+ power and SFP fiber uplink

• Industrial Automation and Control Systems: Delivers connectivity for PLCs, HMIs, and motor drives in manufacturing environments requiring vibration resistance and extended temperature operation (-40°C to 80°C)

• Transportation and Mobile Applications: Enables network connectivity in rolling stock, traffic management systems, and vehicle deployments with stable operation under power fluctuations

• Remote and Rugged Environment Deployments: Operates reliably in mining, oil and gas, and agricultural applications with IP40 protection and wide-temperature tolerance

• Network Extension and Backbone Connectivity: Facilitates fiber optic connectivity for campus networks, industrial parks, and utility substations with 100/1000Base-X SFP compatibility

• Temporary and Emergency Installations: Supports rapid deployment in construction sites, event networks, and emergency response systems with flexible DC power options

• High-Density PoE+ Deployments: Powers multiple high-demand devices simultaneously with 120W total power budget, ideal for multi-camera setups and wireless systems

Technical Indexes

Ordering information

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.