Solution de système de sécurité et de surveillance MCCTV Actualités de CCTUNG — POE UPS

Whether it's network cameras (IPCs) in security surveillance or wireless access points, access control devices, and VoIP phones in smart offices, they're increasingly relying on PoE technology to meet the dual needs of "data and power." However, in actual deployments, a core question often arises: 👉 What is the maximum transmission distance of PoE power? Is it 100 meters? 200 meters? Or indefinitely? Will the equipment still operate stably beyond this distance? Today, we'll explore the reasons. What is PoE?PoE, short for Power over Ethernet, refers to the simultaneous transmission of data and power over a network cable (typically a...

The Fun Day Without Power If the whole world stopped using electricity for 24 hours, it could be really fun!First, we wouldn’t have to do homework because there wouldn’t be any computers or lights.We could go outside and play games like tag or hide and seek.Without phones, we would talk to our family and friends more.We could tell funny stories or play board games.At night, we could look at the stars because there would be no city lights.It would be an adventure, and I think we could all have fun together! The Outdoor Fun If there was no electricity for...

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    The Chinese knot / is a type of / national handicraft / with a long history./ It developed / in the Tang and Song dynasties / and became popular / in the Ming and Qing dynasties./ The Chinese knot / has now become / a kind of colorful craft / and stayed away from / its original practical use.     The Chinese knot / is totally hand-made,/ made of a single rope / and named by its form and meaning./ By connecting / different knots / or other auspicious decorations / skillfully,/ a special auspicious decoration / which represents beauty, wisdom, and wishes / is formed./ For...

In today's world, where portable power is essential, the need for reliable and versatile battery solutions has never been greater. The 18650 battery, known for its large capacity and long service life, has become a popular choice for various digital products. At Eleshine, we are proud to introduce our latest innovation, a compact and powerful 18650 battery holder designed to meet your portable power needs. Understanding the 18650 Battery and Its Holder The 18650 battery is a type of lithium-ion battery commonly used in a variety of electronic devices. Its name is derived from its dimensions: 18mm in diameter and 65mm in...