Industrial Managed Ethernet Switch 1000M 4xGigabit + 4xSFP DIN-Rail -40°C to 80°C

Industrial Managed Ethernet Switch 1000M 4xGigabit + 4xSFP DIN-Rail -40°C to 80°C

Product Overview:
The LNK-GYM7404G-SFP Series represents E-link's advanced industrial-grade managed Ethernet switch, featuring 4× 10/100/1000Base-TX RJ45 ports and 4× 100/1000Base-X SFP fiber slots. This ruggedized network switch delivers high-speed data transmission, flexible media options, and reliable performance for demanding industrial environments.

Key Features & Benefits:

1. Hybrid Port Configuration

   • 4× Gigabit copper ports for local device connectivity

   • 4× SFP fiber slots supporting long-distance optical transmission (up to 120km)

   • Auto-negotiation on all ports for plug-and-play operation

2. Industrial-Grade Reliability

   • Wide temperature operation (-40°C to +80°C)

   • Dual power inputs (12-48V DC) with polarity protection

   • Fanless, metal housing with IP40 protection rating

3. Advanced Networking Capabilities

   • Layer 2 management (VLAN, QoS, RSTP)

   • 16K jumbo frame support for data-intensive applications

   • 8K MAC address table for high-density deployments

Technical Specifications:

• Switching capacity: 16Gbps

• Power consumption: <12W typical

• Surge protection: 4KV on power/Ethernet

• Certifications: CE, FCC, RoHS, IEC 61850-3

Product Features

1. High-Speed Fiber Optic Connectivity
✔ Quad 100/1000BASE-X SFP Slots - Auto-detects SC/FC/ST/LC fiber modules with single/dual fiber transmission support
✔ Flexible Media Options - Supports both multi-mode (2km) and single-mode (120km) fiber connections

2. Advanced Networking Performance
✔ 10K Jumbo Frame Support - Optimizes throughput for industrial video surveillance and data-intensive IIoT applications
✔ IPv6/IPv4 Dual Protocol Stack - Ensures future-proof network compatibility
✔ 8K MAC Address Capacity - Handles high-density industrial device deployments

3. Industrial-Grade Protection & Reliability
✔ 8KV Surge Protection - Superior defense against power surges on both Ethernet and power interfaces
✔ Reverse Polarity Protection - Safeguards against incorrect DC power connections (12-48V)
✔ Rugged Metal Enclosure - Fanless, IP40-rated design for harsh environment operation

4. Energy Efficiency & Smart Management
✔ IEEE 802.3az Energy Efficient Ethernet - Reduces power consumption by up to 70% during idle periods
✔ Comprehensive LED Indicators - Provides real-time monitoring of port status, power, and fiber links
✔ DHCP Support (RFC 1541/1542) - Simplifies network configuration in large-scale deployments

5. Flexible Installation Options
✔ DIN-Rail or Wall Mountable - Space-saving industrial mounting solutions
✔ Extended Temperature Range - Reliable operation from -40°C to +80°C (-40°F to +176°F)

6. Layer 2 Management Features
✔ VLAN Support - Enables secure network segmentation
✔ QoS Prioritization - Ensures mission-critical data transmission
✔ RSTP Protocol - Provides network redundancy (sub-50ms failover)

Application Scenarios

1. Industrial Automation & Smart Manufacturing
• Deploys as mission-critical network infrastructure in Industry 4.0 environments, connecting PLCs, HMIs, and robotic controllers through hybrid copper-fiber backbone
• Enables deterministic data transmission for SCADA systems in petrochemical plants, water treatment facilities, and automated production lines
• Supports real-time machine vision systems with low-latency 10K jumbo frames for quality inspection applications

2. Intelligent Transportation Systems (ITS)
• Provides ruggedized networking for roadside communication units (RSUs), traffic signal controllers, and electronic toll collection (ETC) systems
• Facilitates long-haul fiber connectivity (up to 120km) for tunnel surveillance networks and bridge monitoring systems
• Delivers 8KV surge-protected connectivity for harsh roadside environments with extended temperature tolerance (-40°C to +80°C)

3. Smart City & Critical Infrastructure
• Powers urban surveillance networks with Gigabit copper ports for 4K IP cameras and ANPR systems
• Enables fiber-optic backhaul through quad SFP slots (SC/FC/ST/LC compatible)
• Supports DHCP-enabled network expansion for municipal WiFi hotspots and IoT edge devices

4. Energy & Utility Sector Deployments
• Complies with IEC 61850-3 standards for substation automation and smart grid communications
• Provides dual power input redundancy for 24/7 operation in power distribution stations
• Withstands extreme environmental conditions in oil field operations and renewable energy plants

5. Military & Defense Communications
• Meets MIL-STD-810G specifications for field-deployable networking in mobile command centers
• DIN-rail mounted in armored vehicles and border surveillance systems
• EMC/EMI protected for electronic warfare environments

Technical Compliance & Certifications:
✓ IEEE 802.3/3u/3z compliant Ethernet transmission
✓ CE/FCC/RoHS certified for global deployments
✓ IP40-rated enclosure protects against dust and particulate ingress
✓ VLAN/QoS/RSTP enabled for network traffic optimization

Technical Indexes

Ordering Information

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Application Diagram Display

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.