E-link China Technology Co.,LTD
| Payment Terms | L/C,T/T,Western Union,MoneyGram,PayPal |
| Supply Ability | 1000000PCS/Month |
| Delivery Time | 7-10 working days |
| Packaging Details | Industrial PoE Switch Standard Carton Packaging |
| Connector Type | 4x10/100/1000Base-T PoE ports + 2x Gigabit SFP slots + 1 x 10/100/1000Base-T port |
| PoE Ports | 4 ports support PoE (Port 1-4 support UPoE Power Output: 60W. Total power is 240W) |
| PoE Standard | Both IEEE 802.3af / IEEE 802.3at |
| Bandwidth | 128Gbps (non-blocking） |
| Operating Temperature | -40°C ~ +85°C |
| Warranty | 5 years |
| Brand Name | E-link |
| Model Number | LNK-GYH204GP-SFP |
| Certification | CE |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C,T/T,Western Union,MoneyGram,PayPal | Supply Ability | 1000000PCS/Month |
| Delivery Time | 7-10 working days | Packaging Details | Industrial PoE Switch Standard Carton Packaging |
| Connector Type | 4x10/100/1000Base-T PoE ports + 2x Gigabit SFP slots + 1 x 10/100/1000Base-T port | PoE Ports | 4 ports support PoE (Port 1-4 support UPoE Power Output: 60W. Total power is 240W) |
| PoE Standard | Both IEEE 802.3af / IEEE 802.3at | Bandwidth | 128Gbps (non-blocking） |
| Operating Temperature | -40°C ~ +85°C | Warranty | 5 years |
| Brand Name | E-link | Model Number | LNK-GYH204GP-SFP |
| Certification | CE | Place of Origin | China |
Unmanaged Industrial PoE Switch 4×60W UPoE + 2 SFP DIN-Rail Gigabit
Product Overview
The LNK-GYH204GP-SFP Industrial Gigabit PoE+ Switch delivers high-power 60W UPoE (Universal Power over Ethernet) across 4 ports, combined with 2 1000BASE-X SFP fiber slots for robust industrial network deployments. This unmanaged Ethernet switch complies with IEEE 802.3af/at/bt (PoE++) standards, automatically detecting and powering compliant PDs (Powered Devices) up to 250W total PoE budget.
Key Features & Benefits
✅ High-Density PoE++ Power Delivery
4× Gigabit UPoE ports (60W per port) for power-hungry devices
250W total PoE budget supports multiple PTZ cameras, WiFi 6 APs, industrial PCs
Auto-sensing 802.3af/at/bt compatibility protects non-PoE equipment
✅ Hybrid Copper/Fiber Connectivity
2× 1000BASE-X SFP slots for multi-mode/single-mode fiber uplinks
1× additional Gigabit RJ45 port for network expansion
Extends networks up to 120km via fiber in harsh environments
✅ Industrial-Grade Reliability
-40°C to 75°C operating range for extreme conditions
DIN-rail or wall mountable for flexible installation
Surge protection (6kV) and EMI shielding for electrical noise immunity
4× Gigabit PoE+ Ports (60W UPoE per port): Delivers IEEE 802.3af/at/bt-compliant power to high-demand devices like PTZ cameras, WiFi 6 APs, and industrial sensors.
1× Gigabit RJ45 Uplink Port: Expands network connectivity for non-PoE devices.
2× 1000BASE-X SFP Slots: Supports single-mode/multi-mode fiber for long-distance (up to 120km) and noise-immune data transmission.
240W Total PoE Budget: Powers multiple high-wattage endpoints simultaneously.
Redundant Dual Power Inputs (12~48VDC): Ensures 24/7 uptime in critical applications.
-40°C to 80°C Operating Range: Withstands extreme temperatures in outdoor/industrial environments.
DIN-Rail or Wall-Mountable: Flexible installation in control cabinets, traffic cabinets, or harsh industrial settings.
6kV Surge Protection & EMI Shielding: Protects against electrical noise and voltage spikes.
Fanless, Low-Power Design: Silent operation with minimal energy consumption.
Auto-Sensing PoE Detection: Safely powers 802.3af/at/bt devices without manual configuration.
Non-Blocking Switching Architecture: Ensures full wire-speed throughput for latency-sensitive applications.
Application Scenarios
Industrial Automation Networks
Powers and connects high-wattage industrial devices (PLCs, HMIs, vision systems) with 60W UPoE per port
Provides noise-immune fiber uplinks (1000BASE-X) for factory floor communication backbones
Withstands harsh environments (-40°C to 80°C) in automotive plants, chemical facilities
Outdoor Surveillance Systems
Delivers 60W PoE++ to PTZ cameras, thermal imaging devices and AI surveillance terminals
SFP fiber ports enable long-distance video transmission (120km) for metro surveillance networks
DIN-rail mounting suits traffic cabinet installations in ITS applications
Smart City Infrastructure
Powers IoT edge devices (environmental sensors, smart lighting controllers)
Redundant power inputs ensure reliability for critical municipal networks
6kV surge protection safeguards against lightning strikes in outdoor deployments
Energy & Utility Communications
Connects remote substation equipment via fiber-optic backbone links
240W total PoE budget supports multiple field devices in solar/wind farms
Industrial-grade components prevent failures in extreme temperature environments
Transportation Networks
Provides power+data for railway signaling systems and tunnel monitoring devices
Fanless operation prevents dust accumulation in underground rail environments
IEEE 802.3at/af compliance ensures interoperability with transportation authority standards
Technical Advantages Summary
Protocol-transparent switching maintains <1μs latency for industrial control protocols
Auto-sensing 60W UPoE eliminates separate power cables for high-power endpoints
Dual-fiber options (MMF/SMF) support both short-range (550m) and long-haul (120km) links
Industrial certifications include IEC 61850-3 for power substations
Technical Indexes
| Product Name | 4-Port 10/100/1000T UPoE + 1-Port 10/100/1000T Console + 2-Port 1000X SFP Managed Switch (Port 1-4 support 60W PoE++) |
| Connector Type | 4x10/100/1000Base-T PoE ports + 2x Gigabit SFP slots + 1 x 10/100/1000Base-T port |
| Network Media | 10BASE-T: Cat3/ 4/ 5 UTP (≤100m) 100BASE-TX: Cat5 or more UTP (≤100m) 1000BASE-TX: Cat5 or more UTP (≤100m) |
| Bandwidth | 128Gbps (non-blocking) |
| Packet forwarding rate | 8.93Mbps@64byts |
| MAC Address Table | 8K |
| MTBF | 539608 hours |
| Forwarding Mode | Store-and-Forward |
| Buffer Memory | 4M |
| Network Protocol | IEEE 802.3i 10BASET IEEE 802.3u 100BASETX IEEE 802.3x Flow Control IEEE802.3ab IEEE802.3z IEEE 802.3af /at |
| LED Display | Running Light: SYS, Interface Light: LINK, PoE, Fiber: L/A |
| PoE Ports | 4 ports support PoE (Port 1-4 support UPoE Power Output: 60W. Total power is 240W) |
| PoE Standard | Both IEEE 802.3af / IEEE 802.3at |
| Dimension | 165 x 148 x 54mm (WxDxH) |
| Transmission Distance | Depending on SFP |
| Working Environment | Operating Temperature: -40°C ~ +85°C; Storage Temperature: -40°C ~ +85°C; Relative Humidity: 5 ~ 95%, non-condensing |
| Warranty | 5 years warranty |
Application Display Diagram
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2001
Total Annual:
>10000000
Employee Number:
21~200
Ecer Certification：
Verified Supplier
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 P... 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 P...
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