E-link China Technology Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram, paypal, Credit Card |
| Supply Ability | 1000pcs/month |
| Delivery Time | 5-8 working days |
| Packaging Details | Gigabit Switch Standard Export Package |
| Fiber Ports | 4 x SFP ports (1000Base-SFP) |
| Operating Temperature | -40°C to 80°C (-40°F to 176°F) |
| Input Power | 24VDC(18~36V DC) |
| Dimensions (WxDxH) | 138 x 112 x 60 mm |
| Weight | 0.64Kg |
| Installation | DIN-Rail or wall mounting |
| Brand Name | E-link |
| Model Number | LNK-GY404G-SFP |
| Certification | CE, RoHS, FCC, ISO9001 |
| Place of Origin | Guangdong, China |
View Detail Information
Explore similar products
Mini Industrial 2-Port Gigabit Copper + 2-Port Fiber Ethernet Switch -40~75°C
Mini Industrial 2-Port Gigabit PoE+ + 2-Port Fiber Ethernet Switch -40~80°C
Gigabit Ethernetfiber Optic Network Switch With 4 SFP Port 10 / 100 / 1000Mbps
24 Ports Fiber Optic Patch Panel Industrial DIN - Rail With SC/PC SM Duplex
Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram, paypal, Credit Card | Supply Ability | 1000pcs/month |
| Delivery Time | 5-8 working days | Packaging Details | Gigabit Switch Standard Export Package |
| Fiber Ports | 4 x SFP ports (1000Base-SFP) | Operating Temperature | -40°C to 80°C (-40°F to 176°F) |
| Input Power | 24VDC(18~36V DC) | Dimensions (WxDxH) | 138 x 112 x 60 mm |
| Weight | 0.64Kg | Installation | DIN-Rail or wall mounting |
| Brand Name | E-link | Model Number | LNK-GY404G-SFP |
| Certification | CE, RoHS, FCC, ISO9001 | Place of Origin | Guangdong, China |
| High Light | 4G industrial Ethernet switch ，4 SFP Gigabit fiber switch ，industrial fiber optic switch | ||
Industrial 8-Port Gigabit Switch with 4 RJ45 + 4 SFP DIN-Rail IP40
Overview
The LNK-GY404G-SFP is a high-performance industrial Gigabit Ethernet switch featuring 4 RJ45
copper ports and 4 SFP fiber slots, providing maximum flexibility for mixed media networking.
Designed for harsh industrial environments, it operates reliably in a -40°C to +80°C temperature
range with IP40-rated aluminum housing.
With its redundant ring protocol, this switch ensures network recovery within 20ms, maintaining
continuous communication in critical applications such as intelligent transportation, power automation,
and security monitoring. It supports IEEE 802.3 standards, auto MDI/MDI-X, and plug-and-play
setup—ideal for stable, maintenance-free operation in field deployments.
Features
8 Gigabit ports: 4 × RJ45 + 4 × SFP for flexible fiber/copper deployment
Full Gigabit throughput (10/100/1000Mbps) with auto-negotiation
Redundant ring network support with recovery <20ms
Supports IEEE 802.3, 802.3u, 802.3z, 802.3x, 802.1Q VLAN, and QoS
Wide 24VDC (18–36V) power input, reverse polarity protection
Industrial-grade IP40 aluminum alloy enclosure
-40°C to +80°C operating temperature for extreme conditions
Supports DIN-Rail or wall-mount installation
EMI/EMS protection: ESD, surge, vibration, and shock resistant
Compact size, fanless design, and low power consumption
Technical Indexes
| Parameter | Specifications |
| Standard |
IEEE802.3 (10BASE-T), IEEE802.3u 100BASE-TX/FX (Fast-Ethernet), IEE802.3z 1000BASE-SX/LX(Gigabit-Ethernet), IEEE802.3x (Flow Control), IEEE802.1q, IEEE802.1p QoS, IEEE802.1d Spanning Tree |
| RJ45 port rate | 4 x RJ45 Ports: 10/100/1000BaseT(X) auto connection, Full/Half duplex or force work mode, and support MDI/MDI-X connection |
| Fiber Ports | 4 x SFP ports (1000Base-SFP) |
| Transmission |
Twisted pair: 100m (Standard CAT5/CAT5e cable) Fiber: Depending on SFP Module |
| Power Input options |
Input Voltage: 24VDC(18~36V DC) Opposite connection protection |
| Environmental Limits |
Operating Temperature: -40℃ to +80℃ Storage Temperature: -45℃ to +85℃ Relative Humidity: 5% to 95% (non-condensing) |
| Mechanical Dimension |
Dimensions:138 x 112 x 60 mm House Protection: IP40 protection, Aluminium Alloy Installation: DIN-Rail or wall mounting Weight: 640g |
| Approvals |
EMI: FCC Part 15 Subpart B Class A,EN 55022 Class A EMS: • EN61000-4-2 (ESD),Level 3 • EN61000-4-3 (RS),Level 3 • EN61000-4-4 (EFT),Level 3 • EN61000-4-5 (Surge),Level 3 • EN61000-4-6 (CS),Level 3 • EN61000-4-8,Level 3 Shock: IEC 60068-2-27 Free Fall: IEC 60068-2-32 Vibration: IEC 60068-2-6 |
Company Details
Business Type:
Manufacturer
Year Established:
2001
Total Annual:
10000000-20000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Established in 2001& headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading Fiber Optic Communication and CCTV Security Transmission product manufacturer in China. Our main products include active equipments including fiber media converters, CCTV fiber converters... Established in 2001& headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading Fiber Optic Communication and CCTV Security Transmission product manufacturer in China. Our main products include active equipments including fiber media converters, CCTV fiber converters...
Get in touch with us
Leave a Message, we will call you back quickly!