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E-link China Technology Co.,LTD
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E-link China Technology Co.,LTD

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 ConvertersIndustrial Ethernet PoE switchsPoE Injectors & SplittersPoE ExtendersSerial Fiber ConvertersSFP TransceiversHDMI Fiber ConvertersDVI Fiber ConvertersHD/3G/6G/12G Fiber ExtendersCCTV Fiber Optic ConvertersHDMI/ DVI/ VGA/ SDI Ethernet Extenders(Industrial PoE Actual ...
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China E-link China Technology Co.,LTD

2001

Year Established

>10000000 +

Annual Sales

1w +

customers served

200 +

Employees

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New Year’s Opening: Embrace a Fresh Start in Your Journey
2026-02-26
The holiday balance has been cleared, the hard work mode has been activated! With a bag full of happiness and full battery, we are back to the familiar battlefield. As we embrace the new year, say goodbye to internal conflicts and focus on the goals; no empty talk, only practical actions. May our inspiration burst out like bamboo shoots. The time has come, bringing about a fresh start. After the holiday rest, we return to our posts with enthusiasm and a brand-new attitude to embark on our journey. A new chapter requires new actions. May we steer with our original aspiration and paddle with our hard work, not fearing challenges and persevering without slackening. In work, we ride the waves and break through obstacles; in life, we experience warmth and smoothness. Every effort has its echo, and every persistence brings rewards. With unity and cooperation, let’s achieve great success and rise step by step, together reaching the lush paths and creating a brilliant future! May the work begin with great success and full energy! To welcome our colleagues back to their posts, the company has specially prepared a warm lunch to soothe the body and mind with delicious food and to ignite a new journey with enthusiasm. In the new year, may everyone eat well, drink well, have great enthusiasm, concentrate and unite as one, and move forward together. I wish everyone a smooth work, everything goes well, and in the new year, work hand in hand and achieve even greater success together!
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How to Choose the Right PoE Injector
2026-03-04
What is a PoE Injector A PoE Injector is a device that can simultaneously provide data transmission and power supply through an Ethernet cable. It can connect non-PoE network devices to PoE terminals, solving the problem of separate wiring for power supply. The E-link LNK-INJ301-90 is a typical industrial gigabit 95W PoE++ power supply, supporting a wide input voltage range of 12 to 48VDC. With the power boost function, it can provide stable power to PoE terminals within 100 meters, making it an excellent choice for industrial and commercial scenarios. Importance and Key Characteristics of Selecting a PoE Injector The core of choosing the right PoE Injector lies in matching the device power and adapting to the usage environment. Its key characteristics directly determine the user experience. Firstly, the power specification must be compatible with the IEEE802.3af/at/bt standards. For example, the LNK-INJ301-90 can provide 95W PoE power under 48/24VDC input, and 60W under 12VDC, meeting the power requirements of high-power devices; Secondly, the network performance must support gigabit transmission. This product is compatible with 10/100/1000Base-TX and has a forwarding rate of 1488000pps, ensuring data transmission efficiency; Thirdly, the environmental and hardware characteristics. For industrial scenarios, a product with a wide temperature range of -40℃ to 80℃, IP40 protection, and an aluminum shell should be selected. Moreover, this device has an MTBF of over 200,000 hours and is equipped with LED diagnostic indicator lights, facilitating fault troubleshooting. Working Principle of PoE Injector The working principle of the PoE Injector is a series connection type. One end is connected to the non-PoE switch through the RJ45 port to receive data, and the other end is connected to the terminal through the RJ45 PoE output port. Data is transmitted through the 1,2TX and 3,6RX pairs, while power is output through the 1,2,4,5 (+) and 3,6,7,8 (-) backup pairs. This enables the simultaneous transmission of data and power over the same line. The LNK-INJ301-90 also supports end-to-end / mid-to-end PSE standards, with wide voltage input and power boosting function. It can stably convert and supply power under an input range of 12 to 48VDC, suitable for different power supply environments. Installation Techniques for PoE Injectors When installing a PoE Injector, it is necessary to follow simple and practical principles. The LNK-INJ301-90 supports both DIN rail and wall-mounted installation methods. It is equipped with a DIN rail bracket by default, and the wall-mount kit is a standard accessory. It can be flexibly adapted for installation in industrial cabinets or on the wall. Wiring should use Category 5 or higher unshielded twisted pair cables. The maximum transmission distance is 100 meters. For gigabit transmission, it is recommended to use Category 5 or higher specification cables. When wiring, distinguish between the data input and PoE output ports. The power is connected through the terminal block to 12-48VDC. An optional 48VDC/2.5A power supply can be selected separately. After installation, quickly determine the working status of the equipment by checking the Power and PoE indicator lights. Typical Application Scenarios of PoE Injector The application scenarios of PoE Injector revolve around those that require simplified wiring and stable power supply. The LNK-INJ301-90, with its industrial characteristics, can be widely used in scenarios such as PoE network cameras in security monitoring centers, wireless APs in data centers and office areas, IP telephones in industrial and commercial environments, etc. It can adapt to harsh industrial environments and meet the power supply requirements for long-distance and high-power PoE terminals. It is an ideal power supply solution for fields such as security, network communication, and industrial monitoring.
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The advantages of industrial converters in practical applications
2026-02-03
In the current era of accelerated digital transformation, hybrid network architectures have become the choice for most organizations. Enterprises rely on both local deployment and cloud applications to achieve collaborative office work, and they need to integrate new technologies on top of traditional infrastructure. The compatibility and adaptation of different transmission media have become key challenges. industrial converters, as the core device of network connections, with their unique performance, effectively bridge the gap between different transmission media, and demonstrate significant advantages in practical applications across various industries. The E-link LNK-IMC1200GP90-SFP industrial media converter is a typical representative among them. Its function design tailored for industrial scenarios fully showcases its advantages in practical applications. Adapt to harsh environments and ensure stable operation The core difference between industrial converters and ordinary indoor standard converters lies in their strong adaptability to complex and harsh environments. The LNK-IMC1200GP90-SFP adopts a reinforced aluminum casing, featuring excellent shock resistance, vibration resistance, dustproof, and moisture-proof properties. It can easily handle complex environments in industrial workshops, outdoor deployment points, and remote areas. Its operating temperature range covers -40°C to 75°C, and the storage temperature can reach -40°C to 85°C. Even in scenarios with alternating high and low temperatures or drastic humidity changes, it can operate stably. Additionally, this device complies with electromagnetic compatibility standards such as EN55022, effectively resisting electromagnetic interference and strong electrical surges. Combined with the anti-interference design of the IEC 61000 series standards, it can avoid signal transmission being affected by electrical noise in complex electromagnetic environments such as manufacturing workshops and transportation hubs, ensuring the continuity of data transmission. Enhance functional configuration and improve transmission efficiency In terms of functional configuration, industrial converters balance compatibility, efficiency, and reliability to provide comprehensive protection for network transmission. The LNK-IMC1200GP90-SFP is equipped with 2 10/100/1000BASE-T RJ45 ports and 1 SFP port. It supports automatic detection of 100Base-FX or 1000Base-X dual modes and can flexibly achieve bidirectional conversion between copper wire and optical fiber signals, perfectly adapting to enterprise hybrid network architectures. It supports IEEE 802.3af/at/bt standard PoE power supply, with a maximum of 90W PoE++ power, capable of directly powering IP cameras, wireless APs, and other terminal devices, simplifying wiring processes. In terms of transmission performance, this device adopts the store-and-forward mode, with 1Mbit data packet cache and 2K MAC address table, maximum data packet length support of 9K bytes, and a maximum forwarding rate of 1,488,000pps (1000Mbps), ensuring efficient and non-delayed transmission of large data volumes. At the same time, the redundant power input design and over 200,000 hours of average downtime, further enhance the reliability of equipment operation and reduce maintenance costs. Expand application scenarios and facilitate efficient collaboration The high adaptability and strong stability of industrial converters enable them to play a key role in multiple industry scenarios, becoming an important support for promoting industry digitalization upgrades. In manufacturing, after upgrading the factory’s fiber network connection to warehouses and headquarters, the internal copper wire network can be seamlessly connected to the fiber network through LNK-IMC1200GP90-SFP, resisting power fluctuations and temperature/humidity changes in the workshop, ensuring stable transmission of production data and inventory information, and improving investment returns. In the transportation sector, this device can be installed in airports, railway stations, road sensors, etc., thanks to its anti-vibration and anti-surge characteristics, enabling real-time data exchange between different transportation systems, helping management optimize traffic routes and alleviate congestion. Additionally, it supports DIN rail and wall-mounted installation, with a small size (95x70x30mm) and a weight of only 0.25Kg, allowing for flexible deployment beside industrial equipment or in outdoor enclosures, suitable for more complex installation environments.
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Redefining Visual Boundaries | E-link China Launches 4K 60Hz All-in-One HDMI KVM Fiber Extender
2026-01-29
One Cable, Infinite Possibilities: World's First 4K KVM Fiber Extender with 10 Integrated Functions Launches Single-Fiber 4K@60Hz Lossless Video, KVM/Audio/Serial/Network/IR/EDID Support. Breaks the 80km Ultra-Long-Distance Visual Control Barrier In professional scenarios such as command and control centers, medical operating rooms, large-scale live events, and high-end simulation training, extending ultra-high-resolution video signals along with rich control interfaces over tens or even hundreds of meters has been a core challenge for system integration. Traditional solutions often require deploying multiple cables for different functions, leading to complex wiring, signal interference, and high costs. E-link China officially introduces the revolutionary LNK-4KH-1D1U1E1A1R All-in-One Fiber Extender. This device can simultaneously transmit lossless 4K@60Hz video, KVM keyboard/mouse control, audio, bidirectional RS232/485 serial data, TCP/IP network, and infrared control signals over a single fiber optic cable, truly achieving "one cable for all, zero latency in sight and control," redefining the integration standard for professional AV transmission. Ten Functions Integrated, One Cable Carries All Ultra-HD Visual Experience Supports 4096×2160@60Hz 4:4:4 full chroma sampling for uncompressed, zero-latency visuals. Compliant with HDMI 2.0b and HDCP 2.2 standards, perfectly compatible with Blu-ray players, gaming consoles, and professional video sources. Built-in EDID management for intelligent adaptation to the display's optimal resolution. Full-Featured Control Integration KVM Function: Extends control distance to 80km for precise remote keyboard/mouse operation. Bidirectional Serial: Supports RS232/RS485 for controlling devices like projector screens and camera PTZs. Network Passthrough: Integrated 10/100M Ethernet port provides network access for remote devices. Bidirectional IR: Supports two-way transmission of infrared remote control signals for AV equipment. Professional Audio Processing Supports HDMI embedded audio and independent 3.5mm analog audio output. One-touch audio/video separation via DIP switch for professional sound system integration. Key Technical Specifications Max Video Resolution: 4K2K@60Hz (4096×2160) Color Depth: 12-bit (HDR compatible) Transmission Distance: Up to 80km on single-mode fiber, 2km on multi-mode fiber. Fiber Interface: Single-Fiber Bidirectional (LC) Control Interfaces: USB 2.0 (KVM), RS232/485, 10/100M RJ45 Audio Interface: 3.5mm AUX (Input/Output) IR Interface: Bidirectional transmission, carrier frequency 20-60KHz Power Input: DC 5V/2A Operating Temp: 0°C~40°C (Tx), -10°C~60°C (Rx) Dimensions: 100×80×25mm (both Tx & Rx)                                                      
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What Did They Say
Chris Carter from United State
Chris Carter from United State
Extremely fast US shipping. Excellent product which functions as described. I would highly recommend this seller and will buy again if needed.
Extremely fast US shipping. Excellent product which functions as described. I would highly recommend this seller and will buy again if needed.
Amin Aboud from Venezuela
Amin Aboud from Venezuela
Excellent person, very concerned, product delivered in good time and as requested.
Excellent person, very concerned, product delivered in good time and as requested.
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