Understanding AOC, DAC, ACC, and AEC Cables in Data Centers

Previously, we wrote an article about the NVL72 interconnection scheme. Some users in the community requested a further explanation of what these different cables in data centers mean. Let’s review where optical connections and copper connections are used in the GB200 standard. The abandoned NVL72 optical interconnection scheme regarding the GB200 architecture and interconnections has … Read more

Confused by AOC, ACC, DAC, and AEC? Understand High-Speed Transmission Cables for AI Computing Power

Confused by AOC, ACC, DAC, and AEC? Understand High-Speed Transmission Cables for AI Computing Power

This year, the AI computing hardware sector is booming — leading companies like Cambricon and Foxconn Industrial Internet are frequently hitting new highs, with daily transaction volumes in sub-sectors like optical modules and liquid cooling exceeding 10 billion. The underlying “blood vessels” supporting this computing power revolution — high-speed transmission cables such as AOC, DAC, … Read more

800G Data Center High-Speed Cable DAC and Active Optical Cable AOC Solutions

800G Data Center High-Speed Cable DAC and Active Optical Cable AOC Solutions

High-speed cables (DAC, Direct Attach Cable) include passive copper cables, active copper cables (ACC), and active cables (AEC). They are significantly cheaper than fiber optics, which can greatly reduce the costs of data centers. Compared to DAC, active optical cables (AOC) offer advantages such as being lighter, smaller, having lower error rates, and supporting longer … Read more

Understanding AOC, DAC, ACC, and AEC Cables in Data Centers

Understanding AOC, DAC, ACC, and AEC Cables in Data Centers

Previously, we wrote an article about the NVL72 interconnection scheme, and some users in the community asked for an introduction to the meanings of these different cables in data centers. Let’s review where optical and copper interconnections are used in GB200. The Abandoned NVL72 Optical Interconnection Scheme There has been much discussion about the architecture … Read more

Overview of DAC, AEC, AOC, and ACC in Data Communication

Overview of DAC, AEC, AOC, and ACC in Data Communication

The materials shared by this public account are collected and organized from the internet. All text and images are copyrighted by the original authors and represent their personal views, unrelated to this public account. The article is for readers’ learning and exchange purposes only, and please verify the relevant content yourself. If the article content … Read more

Echo Optimization Issues in Voice Calls with ESP32-S3-WROOM-1U Module

Echo Optimization Issues in Voice Calls with ESP32-S3-WROOM-1U Module

Qiming Cloud/ 01 Have you ever encountered this? When using the ESP32-S3-WROOM-1U module, ESP-ADF version release/v2.4, developed based on ADF + Agora SDK, have you experienced significant echo during two-way voice calls via the mobile APP? Qiming Cloud/ 02 What’s going on here? The input data for AEC processing is divided into left and right … Read more