Nowadays, most of the installed network cameras still use the network cmuaj peev xwm for transmission, and the most commonly used are the super five and six cmuaj peev xwms. If the 100M network we usually use the super five twisted pair, the gigabit network uses the sixtwisted khub.
Here we talk about the national standard super five and six wire diameters, because the wire diameter of the network cmuaj peev xwm is availmuaj peev xwm 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 cmuaj peev xwm.
Cov khoom siv ntawm lub Ethernet Cmuaj peev xwm :
Cov khoom siv dav dav hauv khw: alloy; high-conductivity aluminium; high-conductivity nyiaj; tooj liab ntshiab; oxygen-free tooj liab.
Tus nqi qis tshaj ntawm cov hlau yog hlau, thiab qhov zoo kuj tseem phem.
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 cmuaj peev xwm 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.
Cov khoom siv ntawm high-conductivity nyiaj kuj yog txhuas, thiab qhov tsis zoo yog zoo dua tooj-clad txhuas. Nov yog lub npe, thiab tsis muaj nyiaj hauv cov khoom.
Qhov zoo ntawm cov tooj liab ntshiab yog qhov zoo dua li ntawm aluminium, tab sis qhov tsis kam kuj tseem loj.
Oxygen-free copper, also called red copper. At present, the best network cmuaj peev xwm of the national standard, it is recommended that you choose this network cmuaj peev xwm for monitoring.
Paub xaiv xaiv lossis txheeb xyuas cov khoom siv li cas?
Ntxiv rau kev yuav khoom zoo dua ntawm tus nqi siab dua, yog tias koj ntsib ib tus tub lag luam uas tsis ua siab zoo, koj yuav tsum sim nws tus kheej. Cov txheej txheem nquag siv yog ntsuas ntsuas tsis kam nrog ntau-ntau-meter.
A box of network cmuaj peev xwms 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 cmuaj peev xwms should be about 21-24 ohms.
The relimuaj peev xwm transmission distance of the network cmuaj peev xwm 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 cmuaj peev xwm 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.