E-link China Technology Co.,LTD

Traditional network cables have a transmission distance of only 100 meters, and electromagnetic interference and wiring distance limitations have long plagued network setups in security, parks, and small computer rooms. The E-link LNK-M3011 series of miniature gigabit optical converters, with their compact design, Type-C portable power supply, and adaptive capabilities for both hundred-megabit and gigabit optical ports, connect the network cable and fiber optic transmission links, enabling cost-effective long-distance network extension. This SC micro fiber converter is a lightweight optical-electrical conversion solution for small-scale weak current projects and mobile networking. What is the product? LNK-M3011 is a miniature 10/100/1000Base-T to 100/1000Base-FX Ethernet media converter, also known as an SC optical Converter. The overall size of the device is only 62×44×18mm. It is equipped with 1 adaptive RJ45 electrical port and 1 SC optical port. The SC micro fiber converter is compatible with three optical fiber schemes: multi-mode dual-fiber, single-mode dual-fiber, and single-mode single-fiber WDM. This SC micro fiber converter uniformly adopts 5V Type-C power supply. The overall power consumption is 3W. It supports 9K large frame forwarding and complies with the complete IEEE Ethernet standards. It can automatically identify 100M/1000M optical signals and is compatible with mainstream network terminals such as switches, network cameras, and NVRs. Working Principle The SC micro fiber converter is equipped with a switched photoelectric conversion chip, enabling bidirectional lossless conversion between electrical signals and optical signals. The RJ45 port receives the Ethernet electrical signals transmitted by the network cable, and the internal circuit completes signal shaping before driving the optical module to convert into optical signals. These signals are then transmitted via optical fibers to the opposite device. The optical detector at the opposite end receives the optical signals and restores them to standard electrical signals, which are then output through the network port to the terminal. The SC micro fiber converter automatically matches full/half duplex and MDI/MDI-X wiring orders, eliminating the need for manual configuration of rate and wiring order. The optical ports automatically identify 100Base-FX or 1000Base-X signals, ensuring seamless communication between 100-megabit and 1-gigabit devices. The transmission bit error rate is lower than 10⁻⁹, and the MTBF (Mean Time Between Failures) is 100,000 hours, ensuring long-term stable and reliable operation. Installation and Usage Steps Power Supply Connection: Connect the Type-C data cable between the device and a 5V power adapter or mobile power bank. The PWR indicator light remaining on indicates normal power supply. Network Cable Connection: Use Category 5/6 network cables. One end connects to the RJ45 port of the device, and the other end connects to a switch, NVR, or IP camera. The TX light being on indicates a normal link at the electrical port. Fiber Optic Connection: Insert the SC fiber optic jumper into the device’s optical port. When deploying single-fiber models in pairs, distinguish between A and B ends for pairing use. The FX/ACT flashing indicates normal data forwarding. Status Check: When there is no link, check the fiber optic end faces and network cable connectors. Replace with a fiber module of the matching wavelength and distance to restore the connection. Importance and Key Features This SC micro fiber converter addresses the bottleneck of copper cable transmission over 100 meters, and the optical fiber link is immune to electromagnetic interference. The single-mode can achieve the farthest transmission distance of up to 80 km, significantly reducing the cost of wiring across buildings and over long distances. The compact design can be embedded in cabinets for integration, and is portable for on-site debugging. USB Type-C power supply frees it from the constraints of fixed power sources, making it suitable for temporary networking and outdoor inspections. This SC micro fiber converter supports full-rate adaptive, large frame, and operates within a wide temperature range of 0 to 45°C, suitable for various environments such as monitoring, office work, and industrial applications. Multiple fiber optic specifications are available, and the single-fiber model can save half of the fiber optic wiring resources, reducing engineering material costs. The entire SC micro fiber converter does not require software debugging; it is plug-and-play, significantly reducing the construction and debugging time. Application Scenarios The core application scenario is security monitoring, where high-definition cameras in parks and construction sites can transmit video footage over long distances to the NVR storage room for storage; enterprises and campuses can establish cross-building networks to connect different building switches to achieve gigabit internal network interconnection; small data centers, mobile operation and maintenance temporary fiber optic links can be set up quickly by relying on portable power supply to test the network; industrial weak current workshops and intelligent traffic points can avoid electromagnetic interference from motors and equipment to ensure stable data transmission. The multi-mode short-range solution is suitable for indoor wiring in parks, while the single-mode single-fiber solution is suitable for long-distance point expansion and is adaptable to various small and medium-sized fiber optic networking projects. The LNK-M3011 SC micro fiber converter combines portability, compatibility and transmission stability. With an extremely small size, it can cover the optical conversion needs for both 100Mbps and 1000Mbps in various scenarios, effectively addressing the pain points of long-distance network transmission. It is a cost-effective preferred device for high-performance fiber networking in security, office, and industrial applications, promoting lightweight fiber networking.

In industrial communication scenarios, traditional serial port signals are often affected by electromagnetic interference and have limited transmission distances, which have long hindered the stable operation of equipment. The E-link LNK-IRS93-SC series industrial serial port fiber optic modems (serial port optical network units) convert RS232, RS485, and RS422 serial port signals into optical fiber signals for transmission. This effectively overcomes the shortcomings of traditional communication methods. With high stability and long transmission distances, they have become core communication components in industrial control, stage lighting, and other fields. Product Definition LNK-IRS93-SC is an industrial three-in-one serial port optical conversion device that complies with EIA/TIA standards for RS232, RS485, and RS422, and is a plug-and-play type serial port optical modem. The fiber optic modem integrates multiple serial port interfaces, with a maximum transmission rate of 2 Mbps, capable of achieving bidirectional conversion between serial port signals and optical signals. It is specifically designed to extend the communication distance of serial ports and is suitable for the networking of various industrial serial devices. Working Principle The core principle of this device is the mutual conversion of optical and electrical signals. The front-end receives RS232, RS485 or RS422 electrical signals from the terminal device. The internal circuit modulates the electrical signals into optical signals and transmits them over a long distance through an optical fiber medium. The receiving end device then demodulates the optical signals back into standard serial port electrical signals for the subsequent device to read. The entire data transmission process is transparent. The fiber optic modem can adapt to different baud rates on its own without the need for additional parameter settings. Moreover, the optical transmission characteristics can isolate electromagnetic interference, ground loop interference and lightning damage, ensuring the complete transmission of data. Installation and Usage Hardware Installation: The equipment supports two installation methods: DIN rail mounting and wall mounting. The factory default comes with a rail bracket, and the packaging includes wall mounting accessories. Simply fix the equipment according to the on-site environment and it supports hot-swapping operation. Wiring Connection: Connect the serial port device using industrial terminals, distinguishing the TxD, RxD, D+, D-, GND interfaces; for the optical fiber interface, the default standard is SC interface, but ST, FC, LC connectors can also be selected. Connect the two ends of the optical fiber to the optical ports of the two optical modems respectively. Power Supply Connection: Connect to a DC 12V – 48V direct current power supply. The equipment’s power consumption is less than 5W. Once the power is turned on, the indicator light will light up normally, indicating successful power connection. Debugging and Operation: The equipment does not require parameter configuration. After wiring is completed, it can automatically match the baud rate and communication protocol, and directly achieve two-way data transmission. Core Features and Importance This serial port fiber optic modem has extremely strong adaptability to industrial environments. Its operating temperature range is from -25℃ to 75℃, and the storage temperature range can reach -40℃ to 85℃. It can operate stably in both high and low temperature environments. The fiber optic modem is equipped with 15KV static protection and 1500W/second surge protection, significantly enhancing the risk-resistance capability of industrial sites. The transmission distance is outstanding. For multimode fiber, the maximum transmission distance is 5 kilometers, and for single-mode fiber, it can reach up to 80 kilometers, completely solving the transmission limitations of traditional RS232 (only 15 meters) and RS485/422 (only 1000 meters). This fiber optic modem not only improves the reliability and confidentiality of industrial data communication, but also reduces the probability of equipment failure, making it a key device for ensuring the continuous operation of industrial systems. Application Scenarios The fiber optic modem has a wide range of applications. It is mainly used in various industrial automation control and process control systems. It is also compatible with scenarios such as stage lighting DMX512 communication and traffic signal control. In scenarios like data center monitoring and remote equipment operation, long-distance serial communication links can be established to achieve data exchange between the monitoring room and remote serial devices. Currently, this fiber optic modem has been widely implemented in various industry scenarios that require long-distance and highly stable serial transmission. The LNK-IRS93-SC series industrial serial port optical modem, with its solid hardware protection, flexible installation method, extremely long transmission distance and no-debugging usage advantages, perfectly compensates for the shortcomings of traditional serial communication. As a basic conversion device for industrial communication, it meets the needs of multiple industries and is an ideal choice for building a secure, stable and long-distance serial communication network.

In the field of industrial communication, problems such as electromagnetic interference, long-distance signal attenuation, and lightning damage often affect the stability of serial port data transmission. The E-link LNK-IRS93-SFP industrial serial port optical SFP fiber modem is specifically designed to address these pain points. It is a serial port-to-fiber conversion device suitable for narrow spaces and harsh conditions. With its outstanding compatibility and protection capabilities, it has become the preferred equipment for industrial data transmission. Product Definition and Working Principle The LNK-IRS93-SFP is an industrial RS232/RS485/RS422 to fiber optic converter, also known as an industrial serial SFP fiber modem. The core working principle of this SFP fiber modem is signal conversion and transmission. It can modulate standard serial port signals into optical signals, and then complete long-distance transmission via the optical fiber link. The receiving end can then demodulate the optical signals and restore them to serial port signals. This SFP fiber modem supports bidirectional transparent data transmission and has self-adaptive baud rate capability. No additional parameter settings are required. By matching different SFP modules, the transmission distance can be flexibly adjusted, completely avoiding the electromagnetic interference and ground loop interference problems in traditional cable transmission. Installation and Usage This SFP fiber modem supports the disassembly and assembly of SFP modules, DIN rail installation, and wall-mounted installation. The operation is simple and it supports hot swapping. The specific steps are as follows: Installation and removal of SFP module: Align the SFP module with the interface on the device side and insert it until it is locked. Then connect the fiber optic cable to the LC interface of the SFP; when removing, first press the lock catch of the fiber optic connector to pull out the fiber optic cable, then turn down the SFP lever, and remove the module. Installation of DIN rail: First, tighten the accessory screws to fix the rail bracket, insert the upper part of the bracket into the DIN rail, press it until it is fully locked, and complete the equipment fixation. Wall-mounted installation: Tighten the L-shaped installation bracket screws, use the reserved hole positions of the bracket, and use screws to fix the equipment on the wall or a flat surface. Equipment wiring and debugging: Connect the serial port of the equipment to the serial port of the terminal device, connect the two ends of the fiber optic cable; connect the 12-48V DC power supply, and the power indicator light is constantly on, indicating normal power supply, and the indicator lights of each serial port and fiber optic cable light up simultaneously, indicating normal link communication. Core Features and Product Value This SFP fiber modem integrates multiple practical features, highlighting its significant practical value. In terms of transmission capacity, multi-mode fiber can achieve the farthest transmission distance of 2 kilometers, while single-mode fiber can reach up to 80 kilometers. The serial port has a maximum speed of 2 Mbps and is compatible with standard EIA/TIA serial port protocols. In terms of hardware protection, it is equipped with surge and static protection, and the operating temperature range is from -40°C to 75°C. It can withstand various extreme industrial environments. The structure is compact, supporting two mainstream installation methods, and is suitable for narrow spaces such as distribution boxes and industrial cabinets. At the same time, the SFP fiber modem is plug-and-play, equipped with complete status indicator lights, facilitating maintenance personnel to quickly identify and troubleshoot faults, significantly reducing usage and maintenance costs. Application Scenarios With stable transmission performance and strong environmental adaptability, this SFP fiber modem has a wide range of applications. In industrial control and process control scenarios, it is used for data interaction between sensors and controllers on the production line; in stage lighting control systems, it can be adapted to the DMX512 communication protocol to ensure stable transmission of lighting control signals; in the field of traffic control, it realizes long-distance transmission of traffic signals and monitoring data. Moreover, in scenarios such as factory areas with complex electromagnetic environments or outdoor industrial control sites, it can also ensure the security and confidentiality of data communication by leveraging the advantages of fiber optic transmission. Overall, the LNK-IRS93-SFP industrial serial optical SFP fiber modem combines multiple advantages such as long-distance transmission, strong anti-interference ability, and easy installation. It perfectly meets the diverse industrial communication needs of the present era. In the current era of continuous advancement in industrial intelligence, this device can continuously safeguard the serial communication links of various industries, and is a reliable choice for improving industrial communication quality and enhancing system stability.

In industrial security, IoT and commercial network construction, achieving data transmission and power supply through network cables simultaneously can significantly reduce wiring costs and construction difficulties. E-link LNK-SPL01 is an industrial PoE splitter that integrates dual-port switching functionality. This PoE Splitter is compatible with mainstream PoE standards and can separate the power and data signals in the network cable, providing stable power supply for non-PoE devices and expanding network ports. With its powerful industrial attributes, it becomes the preferred accessory in complex network environments. Product Definition and Working Principle The LNK-SPL01 is a gigabit industrial PoE splitter that also has switch functionality. It complies with the IEEE 802.3af/at PoE standard. When connected to a PoE switch or PoE power supply, the device can automatically separate the power and network data integrated in a single network cable. One path outputs a 12V DC power supply through the terminal, while the other path transmits pure network signals through two RJ45 network ports, achieving network splitting. This PoE Splitter supports dual power supply of PoE and 12V DC, and can automatically switch the power mode. When the PoE input is interrupted, it seamlessly switches to an external 12V power supply, ensuring continuous network and power supply for the device throughout the process. The gigabit transmission rate can meet the requirements for high-definition data transmission, and the maximum transmission distance can reach up to 100 meters. Installation and Usage This PoE Splitter is a plug-and-play device. No software debugging is required. The installation method is flexible and the operation steps are simple: Fixing the device: According to the on-site requirements, use the standard accessories to install the device on the DIN rail or the wall. The metal shell structure is stable and is suitable for scenarios such as cabinets and outdoor enclosures. Wiring connection: Connect the PoE network cable to the PoE input port of the device; connect the non-PoE devices to be powered to the 5-pin terminal, and connect two network terminals to two data output ports respectively. Backup power supply (optional): In scenarios where PoE power supply is unstable, connect a 12V DC power supply to the terminal, and the device will automatically identify and switch the power supply source. Status check: Determine the operating status through the LED indicators on the device body. Indicators such as PWR, POE/12V can directly reflect the power supply and network conditions. Core Features and Application Value This PoE splitter is equipped with an IP40 metal casing and a fanless design. It can operate stably in a wide temperature range of -40℃ to 80℃ and is suitable for both high and low temperature industrial environments. The product has a maximum output power of 20W and is equipped with output short-circuit protection, surge protection, and static protection functions, effectively protecting the downstream terminal devices. It integrates dual-port switching functionality, eliminating the need for additional switches, simplifying the network architecture, and ensuring an average downtime of 24 hours to guarantee long-term continuous operation. By using this product, the process of separately laying power cables can be omitted, reducing wire and labor costs, simplifying line management, and significantly improving the efficiency of network setup and operation. Main Application Scenarios The PoE splitter is compatible with various commercial and industrial scenarios. In the security monitoring system, it can be paired with network cameras, completing power supply and video transmission through a single network cable, and is widely used in parks and road monitoring. In the field of industrial automation, it provides power and network for industrial sensors, cash registers, and small industrial control devices. It is also applicable for the deployment of outdoor wireless APs and IoT terminals, and can be used normally in harsh outdoor environments. The LNK-SPL01 industrial PoE splitter integrates multiple functions such as power supply, signal separation, and network switching. It takes into account practicality, stability, and compatibility, and is compatible with the vast majority of non-PoE network terminals. Whether it is for industrial plants, outdoor security, or commercial network renovations, it can simplify wiring, reduce costs, and is a core component for building efficient and reliable network systems.