ព័ត៌មានឧស្សាហកម្ម

តើធ្វើដូចម្តេចដើម្បីជ្រើសរើសខ្សែកាបអេធើរណេសដែលមានខ្សែរនៅក្នុងគម្រោងតំឡើងកាមេរ៉ាឃ្លាំមើលបណ្តាញ?

2021-03-03

តើធ្វើដូចម្តេចដើម្បីជ្រើសរើសគូស្រស់ អ៊ីសឺរណិត Cអាចនៅក្នុងគម្រោងតំឡើងកាមេរ៉ាសំរាប់ត្រួតពិនិត្យបណ្តាញ?

 

Nowadays, most of the installed network cameras still use the network cអាច for transmission, and the most commonly used are the super five and six cអាចs. If the 100M network we usually use the super five twisted pair, the gigabit network uses the sixគូស្រស់។

 

 

Here we talk about the national standard super five and six wire diameters, because the wire diameter of the network cអាច is availអាច in all kinds of markets, and there are many non-standard ones. The national standard super five wire diameter is 0.5, and the six national standard wire diameter is 0.56. In theory, the thicker the wire diameter, the longer the transmission distance. But the transmission distance is also closely related to the material of the network cអាច.

 

សំភារៈរបស់ អ៊ីសឺរណិត Cអាច :

វត្ថុធាតុដើមទូទៅនៅលើទីផ្សារ: យ៉ាន់ស្ព័រ; អាលុយមីញ៉ូមដែលមានចរិតខ្ពស់។ ប្រាក់ខ្ពស់ការប្រព្រឹត្ដ; ស្ពាន់សុទ្ធ; ស្ពាន់គ្មានអុកស៊ីសែន។

តម្លៃទាបបំផុតនៃយ៉ាន់ស្ព័រគឺដែកហើយគុណភាពក៏អាក្រក់បំផុតដែរ។

High-conductivity aluminum is commonly known as copper-clad aluminum, which is mainly aluminum, easy to oxidize, and the resistance will increase after oxidation. This is why the copper clad aluminum network cអាច is used to install the monitoring, there is no problem when it is newly installed, and there will be occasional signal problems after a while.

សម្ភារៈនៃប្រាក់ដែលមានចរន្តខ្ពស់ក៏ជាអាលុយមីញ៉ូមផងដែរហើយគុណភាពគឺល្អជាងអាលុយមីញ៉ូមដែលធ្វើពីស្ពាន់។ នេះគឺជាឈ្មោះហើយមិនមានប្រាក់នៅក្នុងសម្ភារៈទេ។

 

គុណភាពនៃទង់ដែងសុទ្ធល្អជាងអាលុយមីញ៉ូមប៉ុន្តែភាពធន់នៅតែធំ។

Oxygen-free copper, also called red copper. At present, the best network cអាច of the national standard, it is recommended that you choose this network cអាច for monitoring.

 

ដឹងពីរបៀបជ្រើសរើសឬកំណត់អត្តសញ្ញាណសម្ភារៈ?

បន្ថែមពីលើការទិញយីហោប្រសើរជាងមុនក្នុងតម្លៃខ្ពស់ប្រសិនបើអ្នកជួបឈ្មួញដែលមិនសប្បុរសអ្នកត្រូវសាកល្បងដោយខ្លួនឯង។ វិធីសាស្រ្តរាវរកដែលត្រូវបានប្រើជាទូទៅគឺវាស់ភាពធន់ទ្រាំជាមួយពហុម៉ែត្រ។

A box of network cអាចs is normally 300 meters (in fact, it should be about 305), the resistance of the whole box is tested, the resistance value of the super five should be 27-30 ohms, and the six types of cអាចs should be about 21-24 ohms.

 

The reliអាច transmission distance of the network cអាច is about 100 meters. Do not hear on the Internet that others transmit 120 meters, 150 meters is no problem. The transmission distance of the signal on the network cអាច will be attenuated and data packets will be lost. There may be an image after 100 meters, but there will be problems in the future and maintenance will be very troublesome.