Pramonės naujienos

Kaip pasirinkti vytos poros Ethernet kabelį tinklo stebėjimo kameros diegimo projekte?

2021-02-01

Kaip pasirinkti susuktą porą „„Ethernet““ Csugebatinklo stebėjimo kamerų įrengimo projekte?

 

Nowadays, most of the installed network cameras still use the network csugeba for transmission, and the most commonly used are the super five and six csugebas. If the 100M network we usually use the super five twisted pair, the gigabit network uses the sixvytos poros.

 

 

Here we talk about the national standard super five and six wire diameters, because the wire diameter of the network csugeba is availsugeba 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 csugeba.

 

Medžiaga „„Ethernet““ Csugeba :

Paprastos medžiagos rinkoje: lydinys; didelio laidumo aliuminis; didelio laidumo sidabras; grynas varis; be deguonies varis.

Mažiausia lydinio kaina yra geležis, o kokybė taip pat blogiausia.

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 csugeba 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.

Aukšto laidumo sidabro medžiaga taip pat yra aliuminis, o kokybė yra geresnė nei variu plakiruoto aliuminio. Tai vardas, o medžiagoje nėra sidabro.

 

Gryno vario kokybė yra geresnė nei aliuminio, tačiau atsparumas vis tiek yra gana didelis.

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

 

Žinote, kaip pasirinkti ar identifikuoti medžiagą?

Be geresnio prekės ženklo pirkimo už didesnę kainą, jei susiduriate su ne maloniu prekybininku, turite tai išbandyti patys. Dažniausiai naudojamas aptikimo metodas yra pasipriešinimo matavimas keliais metrais.

A box of network csugebas 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 csugebas should be about 21-24 ohms.

 

The relisugeba transmission distance of the network csugeba 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 csugeba 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.