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| Brand Name : | E-link | 
| Model Number : | LNK-GYM4FE4RS-2SC | 
| Certification : | ROHS,FCC,CE | 
| Price : | $19.9-399 | 
| Payment Terms : | L/C,T/T,Western Union,MoneyGram,Paypal | 
| Supply Ability : | 1000 pcs/month | 
| Delivery Time : | 5-12 working days | 
L2+ Industrial 4-Port 10/100TX + 4-Port RS485 + 2-Port 100FX Ring
Managed Ethernet Switch
Product Overview:
The LNK-GYM4FE4RS-2SC Industrial Managed Switch is a multi-protocol networking solution combining 4×10/100BASE-TX ports, 4×RS485 serial interfaces, and 2×100BASE-FX fiber ports for mission-critical industrial applications. This L2+ managed switch delivers reliable data transmission in harsh environments with advanced redundancy and protocol conversion capabilities.
Key Features & Benefits:
✅ Multi-Protocol Industrial Connectivity
4×10/100BASE-TX Ports: Enable Ethernet device integration with auto-negotiation
4×RS485 Serial Ports: Support Modbus TCP/RTU conversion for legacy industrial devices
2×100BASE-FX Fiber Ports: Create redundant optical rings with <20ms recovery
✅ Advanced Network Management (L2+)
Ring Network Redundancy: Ensures continuous operation in mission-critical systems
Serial Port Server Functionality: Enables remote serial device management
VLAN/QoS/ACL Support: Prioritizes critical industrial traffic
✅ Industrial-Grade Reliability
-40°C to +85°C Operation: Withstands extreme temperature environments
Dual DC Power Inputs (7-28V): Provides power redundancy for 24/7 operation
IP40 Protection: Resists dust, vibration, and EMI interference
4×10/100BASE-TX Ports: Enable Ethernet device integration with auto-negotiation
4×RS485 Serial Ports: Support Modbus TCP/RTU conversion and custom protocol translation
2×100BASE-FX Fiber Ports: Create redundant optical rings with <20ms recovery
Flexible Operation Modes: Transparent transmission, Modbus TCP↔RTU, UDP, multicast
Custom Protocol Conversion: Adapts to legacy industrial device communication
2K MAC Address Table: Supports unicast/multicast allocation for efficient traffic management
IEEE 802.3/u/ab/z/x Compliant: Ensures standards-based interoperability
Store-and-Forward Mode: Guarantees error-free data transmission
Large Backplane Bandwidth: Delivers wire-speed forwarding for all ports
Dual DC Power Inputs (7-28V): Reverse-polarity & over-current protected for 24/7 operation
-40°C to +80°C Operating Range: Withstands extreme outdoor/industrial environments
DIN-Rail/Wall-Mount (IP40): Compact design for space-constrained installations
Application Scenarios
Industrial Automation Networks
Integrates Ethernet-enabled PLCs with legacy RS485 devices (Modbus RTU) via protocol conversion
Enables deterministic communication (<1ms latency) for real-time control systems
Supports device-to-cloud connectivity in Industry 4.0 smart factories
Power Utility Automation
Complies with IEC 61850-3 standards for substation communication networks
Facilitates serial-to-Ethernet migration of protective relays and meters
Provides fiber-optic redundancy for GOOSE/SMV message delivery
Intelligent Transportation Systems
Meets EN 50155 requirements for railway onboard networks
Connects trackside sensors via RS485 and Ethernet simultaneously
Withstands vibration (IEC 61373) and extreme temperatures (-40°C to +80°C)
Oil & Gas Field Monitoring
Implements explosion-proof networks in Class I Div 2 hazardous areas
Transmits SCADA data through fiber-optic links (up to 2km)
Features dual 7-28V DC inputs for uninterrupted operation
Military & Defense Systems
Provides EMI-shielded communication for mobile command units
Supports custom serial protocols for specialized military equipment
Delivers IP40 protection in dusty/sandy environments
Technical Superiority:
Protocol-transparent operation for multi-vendor device integration
Conformal coated PCBs resist humidity and chemical corrosion
35,000-hour MTBF certified for mission-critical deployments
Jumbo frame support optimizes SCADA/telemetry data throughput
Technical Indexes
| Copper Ports | 4 × 10/100BASE-TX, RJ45 | 
| Fiber Ports | 2 x 100BASE-SC (ST/FC Optional) | 
| Serial Ports | 4 x RS485, Industrial Terminal Block | 
| Transmission mode | Store and Forward (full/half duplex mode) | 
| Serial port mode | Supports multiple modes: server, terminal, UDP, multicast | 
| Serial port type | Support transparent transmission mode, MODBUS TCP to RTU, special frame mode | 
| Redundant power input | 7-28V DC | 
| Power Consumption | <3W | 
| Casing | IP40 Aluminum | 
| Dimensions (L x W x H) | 128mm x 105mm x 40mm | 
| Weight | 350g | 
| Mounting Options | DIN-Rail / Wall-mount | 
| Operating Temperature | -40℃~80℃ | 
| Operating Humidity | 5%~90% non-condensing | 
| MTBF | 500,000 hours | 
| Defects Liability Period | 5-year warranty, lifetime technical support | 
Ordering Information
| Model | Description | 
| LNK-GYM4FE4RS-2SC | L2+ Industrial 4-Port 10/100TX + 4-Port RS485 + 2-Port 100FX (Single Mode, Dual Fiber, SC 20KM) Ring Managed Ethernet Switch | 
| Mounting Options | ► Default DIN-Rail Bracket installed; Wall Mount Bracket is included. | 
| Power Options | ►12W/1A 12VDC DIN-Rail Power Supply. Open Wire for Terminal Block. | 
| ► Power Supply is to be purchased separately. | 


|   | 
| Company Info. | 
| E-link China Technology Co.,LTD | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
 
                                 
                                 
                                 
                                