Nowadays, most of the installed network cameras still use the network cuwezo for transmission, and the most commonly used are the super five and six cuwezos. If the 100M network we usually use the super five twisted pair, the gigabit network uses the sixjozi zilizopotoka.
Here we talk about the national standard super five and six wire diameters, because the wire diameter of the network cuwezo is availuwezo 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 cuwezo.
Vifaa vya Ethernet Cuwezo :
Vifaa vya kawaida kwenye soko: alloy; high-conductivity aluminium; fedha ya hali ya juu; shaba safi; shaba isiyo na oksijeni.
Bei ya chini kabisa ya aloi ni chuma, na ubora pia ni mbaya zaidi.
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 cuwezo 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.
Vifaa vya fedha ya hali ya juu pia ni alumini, na ubora ni bora kuliko alumini iliyofunikwa na shaba. Hili ndilo jina, na hakuna fedha katika nyenzo hiyo.
Ubora wa shaba safi ni bora kuliko ile ya aluminium, lakini upinzani bado ni mkubwa.
Oxygen-free copper, also called red copper. At present, the best network cuwezo of the national standard, it is recommended that you choose this network cuwezo for monitoring.
Unajua jinsi ya kuchagua au kutambua nyenzo?
Mbali na kununua chapa bora kwa bei ya juu, ikiwa utakutana na mfanyabiashara ambaye sio mkarimu, lazima ujaribu mwenyewe. Njia ya kugundua inayotumiwa kawaida ni kupima upinzani na mita nyingi.
A box of network cuwezos 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 cuwezos should be about 21-24 ohms.
The reliuwezo transmission distance of the network cuwezo 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 cuwezo 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.