#car #hud <br> <br>Lens automotive products cover front view, surround view, rear view, side view, in-cabin(for gesture recognition/DMS/OMC) and CMS. As one of the professional auto lenses manufacturers, Sunny automotive lens shipment has been over 400 million and these lens are applied in well-known automobile brands including BMW, Mercedes-Benz, Audi, and Ford. Contact us for more information of automobile lens . <br> <br>Types of Automotive Lens <br>Front View Lens <br>The global pioneer in automotive front view lens field. <br>Perfectly match front machine vision application needs and greatly support ADAS (Advanced Driver Assistance Systems) and AV (Autonomous Vehicles) application. <br> <br>Rear View Lens <br>Strong waterproof and excellent weather resistance. <br>Guarantee the high definition all day. <br>Parking is more convenient. <br> <br>Surround View Lens <br>Large angle, Large view. <br>Present a complete car body in a 360-degree view and provide better environment identification. <br> <br>In-Cabin Lens <br>Intelligent gesture recognition, better man-machine interaction. <br>DMS(driver monitoring system) OMS(occupant monitoring system) greatly reduce the risk of fatigue driving and make driving safer. <br>Miniaturization. <br> <br>Camera Monitoring System <br>FDM (full display mirror) CMS (camera monitoring system) reduce the blind area of traditional rearview mirror. <br>Expand the driver&#039;s field of view and provide superior visual experience. <br> <br>Automotive Lens FAQ <br>Automotive Lens Applications <br>Meet the demands of various ADAS applications: Lane Departure Warning, Lane Departure Warning, Forward Collision Warning/Avoidance, Traffic Sign Recognition); <br>Meet the demands of in-cabin applications: Intelligent gesture recognition, driver monitoring system (DMS), occupant monitoring system (OMS); <br>Parking is more convenient: Automatic Parking, Parking Assistant; <br>Reduce blind spots: Intelligent CMS. <br> <br>If you want to know more kinds of car camera lens, achromatic lens and projector lens, please visit our website. <br> <br>As one of automotive lens manufacturers, we will do our best to meet all the needs of customers. <br> <br> <br> <br>[a]https%3A%2F%2Fwww.sunny-automotive.com%2Fproducts%2Fautomotive-lens%2F[/a]

#automotive #lens <br> <br> <br>HUD car hud head up display can project the current speed, navigation and other information in front of the drivers, the drivers can see information without turning their heads or bowing their heads, which make driving safer. With mass production experience of automotive HUD, Sunny Automotive Optech provides optical solutions of different HUD(CHUD/WHUD/AR-HUD) and core optical components for the world&#039;s major makers including BMW, Mercedes-Benz, Audi, Toyota, Ford, GM, Volvo, etc. <br> <br>HUD PGU <br>PGU (Picture Generation Unit): as a module for providing raw imaging, it is an important part of HUD. <br> <br>Sunny Automotive Optech provides different PGU solutions and core optical components (such as projection lens) with mass production experience. <br> <br> <br>Core Components and Assembly <br> <br>Projection Lens <br>The projection lens is a crucial part of PGU, and will directly affect the projection effect of HUD. <br> <br>Sunny Automotive Optech can provide kinds of projection lens for customers needs. <br> <br>Freeform Mirror <br>Freeform mirror/Concave mirror can not only improve the use of light energy but also satisfy the system&#039;s requirement of lighting directivity in imaging systems. <br> <br>Sunny Automotive Optech can provide freeform mirror/concave mirror with different sizes and materials to match different needs <br> <br>Diffuser <br>HUD diffuser is the core device of HUD for beam shaping, which directly affects the imaging performance. Sunny Automotive Optech can provide a variety of sizes and materials (plastic/glass) diffuser products. <br> <br>HUD FAQ <br>Automobile HUD Advantage <br>Stable Projection Imaging; <br>Vehicle hud can project driving information such as speed, fuel consumption, navigation, and ADAS onto the front windshield of a car, and can overlay virtual prompts on top of real vision, and then enhance the driver&#039;s perception of the actual driving environment so that the driver can get the high resolution, low distortion and clear vehicle information image without lowering his head while keeping the line of sight unchanged, avoid distracted driving, effectively improve driving safety. <br> <br>For HUD, the most important thing is the clarity of the image. Sunny can accurately simulate the core parts changes under different extreme temperature conditions, and optimize from the design side to ensure the stability of the projection resolution in the range of -40~105℃. <br> <br>How Automobile HUD Works <br>The HUD is essentially an optical device that works in much the same way as a projector, projecting the information it needs to display onto a transparent medium in front of the driver. <br> <br>HUD consists of two parts: PGU (image generating unit) and optical display system. <br> <br>The PGU is the core component of the HUD. It generates the HUD output image (speed, distance, weather, indication, etc.), which is then transmitted to the car windshield by the optical display system, and finally be seen by the human eye. <br> <br>If you want to buy car windscreen projector, car windscreen display and windshield dashboard display, please contact us. <br> <br> <br> <br> <br>[a]https%3A%2F%2Fwww.sunny-automotive.com%2Fproducts%2Fhud%2F[/a]

#sunny #automotive <br> <br>Automotive Lens <br>Sunny Automotive Optech is the world&#039;s largest automotive lens provider with outstanding quality. Since 2012, Sunny shipments rank TOP 1 in the world for 11 years. Currently, Sunny lenses cover front-view, surround-view, rear-view, side-view, in-cabin(for gesturing recognition/DMS/OMC), and CMS. Cooperating with well-renowed Tier1 enterprises, Sunny lens covers the global mainstream cars. <br> <br>LiDAR <br>Sunny Automotive Optech is mastering LiDAR market trends and the most advanced product technologies and provides optical solutions of different LiDAR <br>(Mechanical LiDAR, MEMS LiDAR, 3D Flash LiDAR)and core optical engine components with mass production experience. Sunny Automotive Optech is supporting the global leading LiDAR players and supplying international auto brands to accelerate LiDAR lens deployment for advanced driver assistance systems and autonomous driving applications. <br> <br>HUD <br>Sunny Automotive Optech has a professional HUD R&amp;D team and strong independent design and processing capabilities. Sunny Automotive Optech provides optical solutions of different HUD(CHUD/WHUD/AR-HUD) and core optical components with mass production experience. Sunny Automotive Optech is accelerating the layout of car HUD products to make driving safer. <br> <br>Lighting <br>Sunny Automotive Optech is mastering the most advanced product technologies and has strong independent design and processing capabilities. Sunny Automotive Optech provides various optical high pixel projection solutions(hundred-thousand-ten thousand - million) and core optical component. Sunny Automotive Optech also provides different optical solutions for ground projection lamp including static projection lamp (SGP) and dynamic projection lamp (DGP) to achieve intelligent environment interaction. <br> <br>Optical Elements <br>Sunny Automotive Optech has strong and stable supply chain to support lens quality and capacity. High precision injection machines, coating machines and testing equipment can ensure high quality lens elements for supply. <br> <br>Advantages of Sunny Automotive Optech Products <br>Your best partner <br>Leading research and development capabilities in the industry; <br>World-class manufacturing capabilities; <br>Highly efficient workforce; <br> <br>If you want to know more about flat window, freeform mirror, lidar window, please visit our website. <br> <br> <br>[a]https%3A%2F%2Fwww.sunny-automotive.com%2Fproducts%2F[/a]

In the fast-evolving landscape of data centers and high-speed networking, the qsfp28 module stands out as a critical component for ensuring efficient data transmission. QSFP28, which stands for Quad Small Form-factor Pluggable 28, is designed to support 100Gbps data rates, making it an ideal choice for modern networks requiring high bandwidth and low latency. This transceiver module combines four 25Gbps lanes into a single interface, facilitating high-speed connections while minimizing the physical footprint of network cabling. As a result, QSFP28 modules are widely adopted in data centers and telecommunication networks, where they enhance overall network performance and scalability. <br>One of the most significant advancements in fiber optic cabling is the development of the qsfp28 active optical cable. These cables integrate electrical-to-optical conversion within the cable assembly, providing several advantages over traditional passive cables. QSFP28 active optical cables are designed to extend the reach of high-speed data transmissions over longer distances, up to 100 meters or more, while maintaining signal integrity and minimizing latency. The active components within the cable help to amplify and clean the signal, reducing the risk of data errors and improving overall network reliability. This makes them particularly useful in large-scale data center deployments where devices need to be connected across considerable distances. <br>Another essential component in high-speed networking is the qsfp28 aoc cable. These cables are essentially another form of active optical cables, specifically designed for use with QSFP28 transceivers. QSFP28 AOC cables offer a plug-and-play solution for high-speed data connections, eliminating the need for additional transceivers or complex configurations. Their lightweight and flexible design make them easier to install and manage compared to traditional copper cables, which can be bulky and prone to signal degradation over long distances. Additionally, QSFP28 AOC cables consume less power than copper alternatives, contributing to more energy-efficient data center operations.

In the realm of high-density fiber optic networks, the mpo to mpo connection is a cornerstone technology. These multi-fiber push-on connectors are designed to streamline the process of managing large volumes of fiber cables, making them ideal for data centers and telecommunications environments where space and efficiency are critical. An MPO (Multi-Fiber Push On) connector typically consolidates 12 to 24 fibers into a single connector, reducing the complexity and potential for errors compared to using individual fiber connectors. This efficiency is especially valuable in environments that demand high data throughput and low latency. <br>When evaluating mpo vs mtp cable, it’s essential to understand the subtle yet significant differences between these two technologies. While both MPO and MTP (Multi-fiber Termination Push-on) cables serve similar purposes in connecting high-density fiber optic networks, MTP connectors are an enhanced version of MPO connectors. The MTP design includes features such as removable housing for easier connector re-polishing, improved alignment through tightly controlled guide pin dimensions, and a higher spring force for better performance. These enhancements result in better performance and reliability, making MTP cables a preferred choice in critical applications where network performance cannot be compromised. <br>The mpo-12 connector is a specific type of MPO connector that is widely used due to its ability to accommodate 12 fibers in a single interface. This connector is particularly popular in applications that require efficient space utilization without sacrificing performance. The MPO-12 connector is often used in trunk cables that connect network devices to patch panels, making it a key component in structured cabling systems. Its design ensures low insertion loss and high return loss, which are crucial for maintaining the integrity of high-speed data transmissions over long distances.

Fiber optic cables are crucial components in modern telecommunications and data transfer systems. One of the most common types used in these systems is the lc lc duplex connector. This type of connector is designed to join two fiber optic cables, providing a reliable and efficient connection. The duplex format allows for simultaneous two-way communication, which is essential in network environments where speed and reliability are paramount. The LC connector, known for its small form factor, is particularly useful in high-density network environments, such as data centers and telecommunication rooms, where space is at a premium. <br>Another essential component in fiber optic networking is the lc sc patch cable. This type of cable is used to connect devices with different types of connectors, specifically LC and SC connectors. The LC to SC configuration is widely used in various applications, including telecommunications and data networks, due to its versatility and ease of use. The patch cable typically features high-quality fiber, which ensures low signal loss and high data transfer rates. The robust construction of these cables makes them suitable for both indoor and outdoor installations, providing flexibility and durability in different environments. <br>For those needing to connect LC and SC connectors over longer distances, the lc to sc fiber cable is an ideal solution. These cables are designed to maintain high performance over extended lengths, making them suitable for applications that require long-distance data transmission. The fiber used in these cables is engineered to minimize signal attenuation and maintain high bandwidth, ensuring reliable communication even over several kilometers. Additionally, these cables often come with protective coatings that safeguard the delicate fibers from environmental factors such as moisture and physical damage, ensuring longevity and consistent performance.

[a]https%3A%2F%2Fwww.china-tscom.com%2Fis-200g-active-optic-cable-good-what-are-the-advantages.html[/a] <br>#fiber #optic #accessories <br>In recent years, optical networks have developed rapidly. In order to ensure the stability and flexibility of transmission, users and manufacturers require a newer type of transmission product to achieve higher-performance signal transmission. To meet this need, active optical cable (AOC) appeared. <br> <br>Active optical cable refers to a communication cable that needs to use external energy to convert electrical signals into optical signals or convert optical signals into electrical signals in the communication process. The optical transceivers at both ends of the 200g mpo cable provide photoelectric conversion and optical transmission functions. AOC uses one optical cable to connect two high-density connectors. <br> <br>At present, the active optical cable products on the market include 10G SFP + AOC, 25G SFP28 AOC, 28G SFP28 AOC, 40G QSFP + AOC, 56G QSFP + AOC, 100G QSFP28 AOC, 120G CXP AOC, 200G-SR4 QSFP DD AOC. <br> <br>Now, what we are introducing is 200G-SR4 QSFP DD AOC. <br> <br>1. What is QSFP 200G AOC? <br>The concept of active optical cable has been described in detail above. In a nutshell, 200G AOC is an active optical cable with a transmission rate of 200G. <br> <br>2. Overview of 200G AOC <br>It is a pluggable and parallel optical fiber QSFP with eight channel and dual density, which is used for 2x100g Ethernet applications. This optical transceiver is high performance for short-distance multi-channel data communication and interconnection applications. <br> <br>It integrates 8 data channels in each direction with a bandwidth of 8x25.78125Gbps. Each channel can use OM3 fiber to transmit 70m or OM4 fiber to transmit 100m. These transceivers are designed to use a multimode fiber optical system with a nominal wavelength of 850nm. <br> <br>The electrical interface uses 76 contact edge type connectors. The optical interface uses a 24-fiber MTP (MPO) connector. The module integrates technology-proven circuits and VCSEL technology to provide reliable services which is long-life, high-performance and consistent. <br> <br>3. Advantages of 200G AOC <br>Facing the trend of the data center which is featured by high speed, low cost, and high density, 200G AOC provides a better solution. <br> <br>Compared with active optical cables of other speeds, 200G active optical cables have greater advantages in link and data. In terms of transmission distance, AOC can achieve a longer transmission distance than copper cable. Moreover, it also has better aerodynamic heat dissipation in the cabling system. <br> <br>Summary: 200G AOC has a higher transmission data rate and a higher density layout and it can achieve the same transmission rate with a relatively low cabling cost under the same conditions. <br> <br>There are many fiber optic accessories suppliers, but we are one of the best choices for you.

[a]https%3A%2F%2Fwww.china-tscom.com%2Fwhy-use-active-fiber-optic-cable.html[/a] <br>#Passive #optical #cables <br>active optical cable, also known as AOC, AOC is the abbreviation of Active Optical Fiber. At one end of the active optical cable, the data is input into an electrical signal, and the electrical signal is converted into an optical signal of a specific wavelength through a photoelectric conversion device. The optical signal is modulated and coupled and then input into the transmission optical cable. After the optical signal reaches the other end, the photoelectric detection device detects, amplifies, and processes the signals, and then the corresponding electrical signal is output. The reverse transmission principle is the same. Passive optical cables have obvious price advantages over active optical components, so why use active optical cables? <br> <br>1. Features of active optical cable <br> <br>With the advent of the era of big data, optical network communications are developing at a high speed, and passive optical cables or copper-based cable systems have been unable to keep up with the pace, appearing stretched, and slowly failing to meet the needs of users and data transmission. As the demand for new products as the main transmission medium for high-performance computing and data centers continues to grow, active optical cable (AOC) products have emerged. <br> <br>Active optical cables are used mainly because their components can replace copper technology in data centers and high-performance computing (HPC) applications. As far as we know, passive optical cables are heavy and bulky, and do not meet the high-density requirements of data centers. Moreover, due to the nature of electrical signals, electromagnetic interference (EMI) limits the performance and reliability of copper. However, active optical cables break through the limitations of passive optical cables and play an important role in high-speed data transmission. <br> <br>Passive optical cables provide direct transmission between corresponding optical cables. active optical cables have the same effect, but some limitations of passive optical cables can be overcome by embedding optical or electronic components in the connector. <br> <br>2. Advantages of active optical cable: <br> <br>(1) Greater bandwidth: no equipment upgrade is required. <br>(2) Lightweight: much lighter than high-speed cables. <br>(3) Low electromagnetic interference: Since optical fiber is a kind of dielectric, it is not easy to be affected by electromagnetic interference. <br>(4) High transmission rate, long transmission distance, low energy consumption, convenient use, etc. <br> <br>There are many fiber optic transceiver manufacturers, but we are one of the best choices for you.

[a]https%3A%2F%2Fwww.china-tscom.com%2Fwhy-is-the-threshold-of-optical-transceiveraocdac-technology-low.html[/a] <br>#AOC #DAC <br>1. The statement that low technical threshold of optical transceiver/AOC and active optical cable/DAC is not rigorous <br> <br>Some high-end products can be only produced by a few manufacturers in the world, such as 400G optical transceivers. In addition, for the same product, such as 100G single-mode optical transceivers, when most optical transceiver manufacturers can only achieve 10 kilometers, a few manufacturers can already achieve 40 kilometers. But for the vast majority of mature products, the threshold in this field is indeed too low, which leads to a large number of small workshops, and dozens of people can start an optical transceiver company. <br> <br>2. Reasons for the low threshold of optical transceiver/AOC DAC technology <br>The reason for the low threshold is that the optical transceiver/AOC active optic cable/DAC can basically be regarded as a pure hardware product. Although the driver is also running on the MCU controller, they are relatively simple and standard things (Of course, there are still differences between manufacturers, and many compatibility problems come from this difference). <br> <br>The core components used in this hardware product are available to everyone, and everyone can easily get the hardware solutions of major manufacturers for reference and imitation, and even some optical transceiver suppliers will directly provide coupled boards to downstream manufacturers. . <br> <br>This means that for optical transceiver manufacturers, in terms of many mature products, the technical solutions used by everyone are highly similar, and there are not too many thresholds. <br> <br>There are many fiber optic component manufacturers, but we are one of the best choices for you.

[a]https%3A%2F%2Fwww.china-tscom.com%2Fwhy-do-400g-optical-transceiver-prefer-qsfpdd.html[/a] <br>#optical #transceiver <br>QSFP optical transceiver has developed to 400G optical transceiver, and manufacturers are stepping up research and development to seize the hot spot. Many mainstream manufacturers choose QSFP-DD as the package of 400g transceivers, but why do 400G optical transceivers prefer QSFP-DD? Does it mean that QSFP-DD will be the main package of 400G optical transceivers in the future? <br> <br>A good packaging must first support the types of transmission media and optical transceivers that are widely used in the networking industry. The transmission media include passive direct connection copper cable (DAC), multimode fiber (MMF) and single-mode fiber (SMF). Optical transceivers, active copper cables, and qsfp+ patch cable include the 100Gb /s, 200Gb/s, and 400Gb/s series defined by Ethernet, Fibre Channel, and InfiniBand standards. Furthermore, the port density of the new package should be the same as that of the already deployed network. Finally, the backward compatibility of the new package with the already widely used QSFP package is critical for industry adoption. The 400g QSFP-DD optical transceiver is a package that meets all the above conditions. <br> <br>I. The development history of QSFP+ patch cord <br> <br>On March 21, 2016, the plan to develop QSFP-DD high-speed interface was started. <br> <br>On September 19, 2016, version 1.0 of the QSFP-DD hardware specification containing the drawings was released. <br> <br>On March 13, 2017, version 2.0 of the QSFP-DD hardware specification and QSFP-DD white paper were released. <br> <br>On September 19, 2017, version 3.0 of the QSFP-DD hardware specification was released, along with the CS Connector specification. <br> <br>On March 13, 2018, the QSFP-DD Thermal Design White Paper was released, addressing the issue of how to evaluate the thermal performance of the QSFP-DD module in a high-performance data center environment. <br> <br>On August 30, 2018, it was announced that the QSFP-DD package had successfully passed the equipment interoperability test, and the QSFP-DD package optical transceiver was now ready for official use. <br> <br>On 18 September 2018, version 4.0 of the QSFP-DD hardware specification and version 3.0 of the General Management Interface Specification for 8/16 Channel Placable Optical Modular were released. <br> <br>So far, QSFP-DD MSA is relatively completed, and qsfp+ patch cord of leading optical transceiver manufacturers were also listed in that period. <br> <br>II. The application in the research and development of 400G optical transceiver <br> <br>The QSFP-DD dual-density four-channel small pluggable package is a high-speed pluggable module package defined by the QSFP-DD MSA team as the preferred package for 400G optical transceivers, enabling data centers to effectively grow and expand cloud capacity as needed. <br> <br>III. Characteristics of 400G QSFP-DD optical transceiver <br> <br>The compatibility of the 400G QSFP-DD optical transceiver with the QSFP solution is one of its main advantages. The original QSFP28 module can still be used; you just need to insert another module. <br> <br>In conclusion, the characteristics of the QSFP-DD optical transceiver package have unparalleled advantages in 400G applications (such as data center interconnection). It is expected that the world&#039;s leading ultra-large data center will soon deploy 400G, and QSFP-DD may become the mainstream package. <br> <br>If you are looking for a reliable optical transceiver supplier, don&#039;t hesitate to contact us!

[a]https%3A%2F%2Fwww.china-tscom.com%2Fwhat-is-the-difference-between-aoc-and-optical-transceiver.html[/a] <br>#optical #communications <br>AOC active optical cable is an optical fiber with a module attached to each end, which is equivalent to a cable and a module. <br> <br>AOC active optical cable is also widely used by many customers, because its cost is cheaper than that of two separate modules plus one optical fiber. <br> <br>1. From a technical point of view, what is the difference between AOC and optical transceiver + optical fiber? <br> <br>Like optical transceiver, AOC active optical cable is still optically driven with the same core components inside. Their difference is mainly referring to the process difficulty. <br> <br>For optical transceiver, when the internal components are coupled, the situation of the opposite end may be very different, so it needs to adopt different situations, which requires high level lasers with high manual operation complexity. <br> <br>As for AOC fiber cable, the opposite end is fixed, so there is no need to consider various situations. It sets low requirements for the laser with relatively simple peripheral components and simple manual operation. This can reduce some costs and is why the price of AOC active optical cable is lower than that of two modules + one optical fiber. <br> <br>However, since none of the most costly core components is saved, the difference in cost is not very significant (note: cost is not equal to selling price). <br> <br>Of course, even for the same manufacturer, their optical module transceiver and AOC fiber active optical cable may have different chip solutions and coupling methods. This is why the optical transceivers and AOC active optical cables of the same manufacturer may perform differently on the same third-party equipment, but in general, they are all driven by light, so the difference will not be too great. <br> <br>2. The cost of AOC active optical cable and optical transceiver is different <br> <br>Although the cost of AOC active optical module is lower, compared with transceivers, the AOC active optical cable also has disadvantages. <br> <br>For example, in the AOC cable, if a module or optical fiber has a problem, all parts need to be replaced, but the fiber optical transceiver does not require the same; especially in some environments where the wiring is completed, the AOC active optical cable needs to be pulled out, which is a very troublesome task. <br> <br>In addition, if the equipment at both ends are from different aoc company, for the optical transceiver solution, transceivers from different manufacturers can be purchased separately to avoid compatibility issues. If the AOC active optical cable solution is used, you can only ask the AOC active optical cable supplier to write the code in advance, and it may even need to be marked on the AOC cables, like which end corresponds to which manufacturer. <br> <br>For more information about optical communications products, please feel free to contact us!

[a]https%3A%2F%2Fwww.china-tscom.com%2Fwhat-is-the-difference-between-100g-active-optic-cable-and-100g-direct-attach-cable.html[/a] <br>#dac #cable <br>We know that both 100G active optical cables (AOC) and 100g fibre cable (DAC) are used to transmit data. However, there are some differences between 100G active optical cable and 100G direct attach cables. Next, we will introduce the difference between these two types of cables in detail. <br> <br>1. What is 100G active optical cable? <br>100G active optical cable refers to the communication cable that needs to use external energy to convert electrical signals into optical signals or convert optical signals into electrical signals during the communication process. The optical transceivers at both ends of the optical cable provide photoelectric conversion and optical transmission functions, and the transmission rate reaches 100Gb/s. <br> <br>2. What is 100G direct attach cable? <br>100G direct attach cable adopts silver-plated conductor and foamed insulated core wire, which has excellent low attenuation performance and low delay performance, so that the signal transmission is accurate and precise, and the transmission speed can be improved. It is a short-distance connection solution that replaces the optical transceiver. Moreover, the price of this cable is much cheaper than that of the same type of optical transceivers, and it is widely welcomed in short-distance connection applications. <br> <br>3. Structure of dac cable 100g <br>Simply put, the active optical cable is composed of two optical transceivers and an optical cable jumper. The optical fiber transceiver at both ends consists of OM3 or OM4 multimode fibers of different lengths. <br> <br>4. Structure of 100g cable <br>Direct attach cable is abbreviated as DAC. Its both ends are connected to switches or servers to realize short-distance transmission. High-speed cables can be divided into passive direct attach cables and active direct attach cables. Active direct attach cables has only one more driving chip than passive high speed cables. The &quot;optical transceivers&quot; on direct attach cables are not optical transceivers in the true sense. They have no components and can only transmit electrical signals. Therefore, direct attach cables are cheaper than other ordinary optical devices. Even if the same port is used as interfaces of optical transceivers, direct attach cables can also effectively save costs and reduce power consumption in short-distance applications. This is the reason why people choose direct attach cables. <br> <br>5. Classification of 100g dac cable <br>100G AOC active optical cable has two types: 100G QSFP28 active optical cable and 100G QSFP28 to 4X 25G SFP28 active optical cable. The former has an optical transceiver receiver at both ends to realize one-to-one transmission, and the latter has a 100G QSFP28 interface at one end, and four 25GSFP28 ports at the other end, which can provide customers with 100G data transmission. <br> <br>6. Classification of 100G direct attach cables <br>There are two types of 100G direct attach cables: 100G QSFP28 DAC and 100G QSFP28 to 25G SFP28 DAC. The former has an optical transceiver receiver at both ends to realizes one-to-one transmission, and the latter has a 100G QSFP28 at one end of interface and four 25GSFP28 interfaces at the other end, which can provide customers with 100G data transmission. <br> <br>It should be noted here that although the classification of the two is much the same, the optical transceiver of the active optical cable has a built-in laser, while there is no laser inside the direct attach cable. <br> <br>For more information about optical communications products, please feel free to contact us!