Industrial 4-port 10/100/1000T 802.3bt PoE + 4-port 10/100/1000T
802.3at PoE + 2-port 100/1000X SFP Managed Ethernet Switch
Overview
The LNK-GYM7208GHP-SFP Series is an advanced industrial-grade managed Ethernet switch designed for demanding networking environments. Featuring 4x 802.3bt PoE+ ports (90W), 4x 802.3at PoE ports (30W), and 2x 100/1000Base-X SFP fiber slots, this ruggedized switch delivers high-speed, stable data transmission for industrial and
outdoor applications. Manufactured by E-link, this Gigabit PoE switch combines high reliability, compact design, and energy efficiency, making it ideal for smart city deployments, industrial automation, and mission-critical
networks.
Key Features & Benefits
High-Power PoE++ & PoE+ Support: 4x 802.3bt PoE ports (90W each) + 4x 802.3at PoE ports (30W each) for powering IP cameras, wireless APs, and IoT devices without extra wiring.
Dual Fiber Uplinks: 2x 100/1000M SFP slots enable long-distance fiber optic connectivity, enhancing network scalability.
Industrial-Grade Durability: Operates in -40°C to 80°C extremes with fanless, low-power design, ensuring reliability in harsh conditions.
Redundant Power Inputs: Dual DC power supply (12-48V) supports failover protection for uninterrupted operation.
Compact & Versatile Mounting: DIN-rail or wall-mountable (IP40) for easy installation in factory automation, ITS, and utility networks.
Layer 2 Managed Features: VLAN, QoS, STP/RSTP, and advanced security protocols for optimized traffic control.
Product Features
1. High-Speed Fiber Connectivity
✔ Dual 100/1000BASE-X SFP Slots – Supports auto-detection for flexible fiber or copper SFP modules, enabling long-distance optical network transmission (up to 120km with single-mode fiber).
2. High-Power PoE++ & PoE+ Support
✔ 4x 802.3bt PoE+ Ports (90W each) + 4x 802.3at PoE Ports (30W each) – Delivers 480W total PoE budget for powering high-demand devices like PTZ cameras, WiFi 6 APs, and industrial sensors without extra power supplies.
3. Advanced Data Handling & Efficiency
✔ Jumbo Frame Support (16K bytes) – Enhances throughput for large data packets, ideal for video surveillance & industrial automation.
✔ IEEE 802.3az Energy-Efficient Ethernet (EEE) – Reduces power consumption during low traffic, cutting operational costs.
✔ 8K MAC Address Table – Ensures stable network performance in high-density deployments.
4. Robust Protection & Reliability
✔ 4KV Surge Protection (Power & Ethernet) – Guards against lightning strikes & voltage spikes in harsh environments.
✔ Polarity Protection (12-48V DC Input) – Prevents damage from reverse power connections, improving fail-safe operation.
5. Industrial-Grade Durability
✔ Fanless Metal Housing (IP40 Rated) – Dust-resistant & vibration-proof for extreme-temperature conditions (-40°C to 80°C).
✔ DIN-Rail or Wall Mounting – Flexible installation in control cabinets, traffic cabinets, or outdoor enclosures.
6. User-Friendly Monitoring
✔ LED Status Indicators (Port, PoE, Power, SFP) – Provides real-time diagnostics for quick troubleshooting.
Application Scenarios
The LNK-GYM7208GHP-SFP industrial-grade managed PoE switch is engineered for mission-critical networking in harsh environments, delivering high-speed data transmission, power-over-Ethernet (PoE) support,
and fiber-optic connectivity. Below are its key industrial and commercial applications:
1. Industrial Automation & Smart Manufacturing
✔ Industry 4.0 & IIoT (Industrial IoT) Networks – Provides reliable Gigabit backbone connectivity for PLCs, HMIs, and robotic systems in smart factories.
✔ SCADA & Process Control Systems – Ensures low-latency communication for real-time monitoring in oil & gas, water treatment, and power plants.
✔ Machine Vision & Automated Production Lines – Supports high-bandwidth data transfer for industrial cameras and inspection systems.
2. Intelligent Transportation Systems (ITS) & Traffic Management
✔ Roadside & Tunnel Communication Networks – Enables high-power PoE++ for IP cameras, VMS, and license plate recognition
(LPR) systems.
✔ Traffic Signal Control & Electronic Toll Collection (ETC) – Delivers fiber-optic uplinks (SFP) for long-distance data transmission in high-EMI environments.
✔ Vehicle-to-Infrastructure (V2I) Connectivity – Facilitates real-time data exchange for smart highways and connected traffic systems.
3. Smart City & Public Safety Infrastructure
✔ Urban Surveillance & Security Networks – Powers 4K PTZ cameras, ANPR systems, and access control devices via 802.3bt PoE++ (90W per port).
✔ Public WiFi & Wireless Backhaul – Supports high-density WiFi 6/6E access points with Gigabit Ethernet and fiber redundancy.
✔ Emergency Communication & Disaster Recovery – Dual power inputs (12-48V DC) ensure uninterrupted operation in critical situations.
4. Military, Defense & Utility Networks
✔ Ruggedized Field Communications – IP40 metal housing & -40°C to 80°C operating range make it ideal for military mobile command centers and border surveillance.
✔ Smart Grid & Substation Automation – Complies with IEC 61850-3 & IEEE 1613 for power utility Ethernet networks.
✔ Oilfield & Mining Operations – 4KV surge protection & DIN-rail mounting withstand high vibration and extreme weather.
5. Enterprise & Data Center Edge Networking
✔ PoE Lighting & Building Automation – Centralizes power and data for smart LED lighting, HVAC controls, and occupancy sensors.
✔ Fiber-to-the-Edge (FTTE) Deployments – SFP slots extend Gigabit fiber links to remote offices and distributed IT equipment.
Technical Indexes
Physical Port |
RJ45 port and speed | 4x10/100/1000Base-T 802.3bt PoE++ 4x10/100/1000Base-T 802.3at PoE+ |
Fiber port and speed | 2x100/1000Base-FX SFP (Dual Mode, Auto Detection) |
Parameters |
Ethernet standards | IEEE 802.1x authentication IEEE 802.1q-Tagging IEEE 802.1p-Qeueing Layer 2 QoS/CoS with min. 4 Queues per Port IEEE 802.1w RSTP rapid spanning tree IEEE 802.3ad Trunking IEEE 802.3x flow control IEEE 802.1D Spanning Tree IEEE802.1ab LLDP |
Packet buffer | 4Mbits |
Maximum packet length | Up to 1532Bytes |
MAC address table | 16K |
Transmission mode | Store and Forward (full/half duplex mode) |
Exchange property | Delay time: < 7μs
Backplane bandwidth: 20Gbps
Packet forwarding rate: 14.88Mpps |
PoE |
PoE Standard | 4 x IEEE 802.3af/at/bt PoE 4 x IEEE 802.3af/at PoE |
Power budget | Max. PoE output power budget 90W for single PoE port
Total PoE Power Budget up to 480 watts maximum |
Lightning protection | The Industrial Switch provides contact discharge of ±8KV DC and air
discharge of ±15KV DC for Ethernet ESD protection. It also supports
±4KV surge immunity to improve product stability and protects
users’ networks from devastating ESD attacks, making sure the flow
of operation does not fluctuate. |
Ordering Information
| Model | Description |
| LNK-GYM7208GHP-SFP | Industrial 4-port 10/100/1000T 802.3bt PoE + 4-port 10/100/1000T
802.3at PoE + 2-port 100/1000X SFP Managed Ethernet Switch |
| SFP Options | ► SFP option. Please select your SFP on our SFP Options Page
(Industrial SFP). |
| ► SFP module is to be purchased separately. |
| Mounting Options | ► Default DIN-Rail Bracket installed; Wall Mount Bracket is
included. |
| Power Options | ►480W 48VDC DIN-Rail Power Supply. Open Wire for Terminal Block. |
| ► Power Supply is to be purchased separately. |
Application Display Diagram
