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What is the difference between a cable and an optical cable?
Aug 12 , 2021
The cable is used to transmit electrical signals, and the inside is a copper core wire, usually a rope-like cable that is twisted by several or several groups of wires [each group of at least two]. The core wire diameter is divided into 0.32mm, 0.4mm and 0.5mm. The larger the diameter, the stronger the communication ability; and the number of core wires is divided into: 5 pairs, 10 pairs, 20 pairs...
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What is the difference between AOC optical cable and DAC cable
Feb 20 , 2023
What is DAC? DAC is a high-speed direct connection cable, also known as direct copper cable. This type of cable port cannot be replaced, and the module head cannot be separated from the copper cable. Copper cable is the most common direct cable connecting servers and storage area networks in data centers. Direct copper cable is divided into passive copper cable and active copper cable. Passive cop...
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What is a switch in a data center?
Jun 20 , 2023
A switch in a data center is a network device that connects multiple devices within a local area network (LAN). It is a crucial component for data communication and plays a significant role in routing network traffic efficiently. Network Switches operate at the data link layer (Layer 2) or the network layer (Layer 3) of the OSI model. Layer 2 switches are commonly used in data centers to create lo...
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Analysis of Fiber Optic Cables: A Comprehensive Guide from Principles to Practice
Jul 25 , 2025
In the field of modern communications, fiber optic cables have become the core carrier of information transmission due to their excellent performance. Compared with traditional copper cables, their advantages in speed, bandwidth, and reliability are irreplaceable, profoundly changing people's communication and lifestyle. This article will elaborate on key aspects of fiber optic cables, including t...
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Data Center DAC & AOC: Key Differences & Uses
Jul 31 , 2025
In data centers, DAC (Direct Attach Copper) and AOC (Active Optical Cable) are two commonly used high-speed connectivity cables. They may look similar in appearance but differ significantly in functionality and application scenarios. Understanding the differences between them helps make more appropriate choices when building or upgrading data centers. What is a DAC Cable? A DAC cable is a c...
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