4-port 10/100/1000BASE-T PoE + 1-port 1000BASE-X SFP + 1-port 1000BASE-T Industrial 250m PoE Switch

4-port 10/100/1000BASE-T PoE + 1-port 1000BASE-X SFP + 1-port 1000BASE-T Industrial 250m PoE Switch

Product Overview

The LNK-GYT411GP-SFP Industrial Ethernet Switch delivers high-performance networking with extended reach for demanding environments:

Key Features & Benefits:

✅ Extended-Range PoE+ Power (250m)

• 4× Gigabit PoE+ ports provide 30W IEEE 802.3at power up to 250 meters

• Supports high-power devices including PTZ cameras, WiFi 6 APs, and industrial sensors

• 10Mbps guaranteed speed at maximum 250m distance

✅ Flexible Uplink Options

• 1× 1000BASE-X SFP slot for fiber optic connectivity (single-mode/multi-mode)

• 1× Gigabit copper uplink port for network expansion

• Enables hybrid copper-fiber network architectures

✅ Industrial-Grade Reliability

• 6kV surge protection and static shielding for harsh environments

• Wide temperature range (-40°C to 75°C) operation

• DIN-rail or wall-mountable rugged metal housing

✅ Advanced Network Management

• One-key VLAN mode simplifies network segmentation

• QoS prioritization ensures smooth video transmission

• Storm control prevents network congestion

• Fast packet forwarding for uninterrupted 4K video streams

Technical Specifications:

• Compliance: IEEE 802.3at/af, 802.3, 802.3u, 802.3ab

• PoE Budget: 120W total

• Backplane Bandwidth: 12Gbps

• Jumbo Frame: 9KB

Product Features:

1. Extended-Range PoE+ Power Delivery (250m)

• 250m Long-Distance Transmission: Ideal for large-area surveillance and outdoor wireless AP deployments

• Guaranteed 10Mbps Speed at 250m: Ensures stable connectivity for IP cameras at maximum range

• 4× Gigabit PoE+ Ports: Deliver IEEE 802.3at (30W) & 802.3af (15.4W) power to PTZ cameras, WiFi 6 APs, and industrial sensors

2. High-Speed Hybrid Uplink Connectivity

• 1× 1000BASE-X SFP Slot: Supports single-mode (120km) or multi-mode fiber (550m) for noise-immune backbone links

• 1× Gigabit Copper Uplink Port: Enables flexible network expansion without fiber optics

• Auto MDI/MDIX & Auto-Negotiation: Simplifies installation with plug-and-play operation

3. Industrial-Grade Reliability

• 6KV Lightning & Surge Protection: Safeguards against power surges in harsh environments

• Redundant Dual Power Inputs (12~48VDC): Ensures 24/7 uptime for critical applications

• Wide Temperature Range (-40°C to 80°C): Operates reliably in extreme outdoor/industrial conditions

4. Advanced Traffic Management

• 802.3x Flow Control: Prevents data loss in high-traffic surveillance networks

• Non-Blocking Switching Architecture: 12Gbps backplane ensures wire-speed performance

• DIN-Rail or Wall-Mount Installation: Compact IP40 metal housing for space-constrained deployments

Application Scenarios

1. Large-Scale Surveillance Networks

• Powers long-range IP camera deployments (4×30W PoE+ ports) across extended distances (250m)

• Provides fiber-optic backhaul (1000BASE-X SFP) for multi-site video aggregation in perimeter security systems

• Maintains 10Mbps stable transmission at maximum range for critical surveillance feeds

2. Industrial Automation Systems

• Connects PLC arrays and HMI stations across extended factory floors

• DIN-rail mounting facilitates installation in control cabinets for manufacturing plants

• Withstands extreme temperatures (-40°C to 80°C) in foundry and mining environments

3. Transportation Infrastructure

• Enables tunnel/bridge monitoring systems with 250m PoE reach

• Dual power inputs ensure reliability for railway signaling equipment

• 6kV surge protection safeguards against electromagnetic interference near high-voltage areas

4. Outdoor Wireless Deployments

• Delivers PoE+ power and data to outdoor WiFi 6 APs at 250m range

• SFP uplink connects to carrier-grade fiber backbones

• Wall-mountable design suits telecom cabinet installations

5. Energy Sector Applications

• Provides substation communication with fiber-optic isolation (1000BASE-LX)

• 120W total PoE budget supports multiple thermal imaging cameras

• Complies with industrial protection standards for power utility networks

Technical Advantages Summary:

• Protocol-transparent switching (<1μs latency) for industrial control protocols

• Auto-sensing 10/100/1000Mbps ports enable gradual network modernization

• Non-blocking architecture (12Gbps) ensures zero packet loss at full load

• Redundant PSU support meets industrial reliability requirements

Technical Indexes

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.