A cikin tsarin kamara na IP da tsarin kebul na cibiyar sadarwa na 100Mbps, galibi muna amfani da kebul na cibiyar sadarwa na Cat5e don watsa sigina da samar da wutar lantarki.Elzoneta zai bayyana muku wasu mahimman bayanai kamar yadda ke ƙasa:
Yadda ake amfani da wutar lantarki ta PoE?
Don samar da wutar lantarki, yakamata mu sami ra'ayin PoE da farko.PoE (Power over Ethernet), yana nufin cewa wutar lantarki ta fito daga PoE canzawa zuwa tashoshin tushen IP (kamar wayar IP, wlan access point da IP kyamarori) ta hanyar kebul na cibiyar sadarwa na Cat5e.Tabbas, duka sauyawa da tashoshi na tushen IP sun gina tsarin PoE;Idan tashoshi na tushen IP ba su da tsarin PoE, yana buƙatar amfani da Standard PoE splitter.
A al'ada, mun zaɓi yin amfani da ma'aunin PoE na duniya, wanda ke goyan bayan 48V-52V, yana bin IEEE802.3af/802.3at.Domin wannan PoE canza yana da aikin ganowa na PoE.Idan muka yi amfani da PoE ba daidai ba, 12V ko 24V, ba tare da aikin ganowa na PoE ba, lokacin da aka fitar da wutar lantarki zuwa tashoshi na tushen IP kai tsaye ba tare da la'akari da tsarin PoE na ciki ba ko a'a, yana da sauƙi don ƙona tashoshin tashoshin IP na tushen IP. , har ma lalata tsarin wutar lantarki.
Yaya nisa watsa siginar?
Nisan watsawa na kebul na cibiyar sadarwa ya dogara da kayan kebul.A al'ada, yana buƙatar amfani da jan ƙarfe mara iskar oxygen, saboda juriyar jan ƙarfe mara isashshen iskar oxygen ya fi ƙanƙanta, a cikin 30 ohms na mita 300, kuma girman tushen jan ƙarfe gabaɗaya 0.45-0.51mm.A cikin kalma, mafi girman girman ginshiƙi na jan ƙarfe, ƙarami da juriya, ƙarin nisan watsawa shine.
Dangane da ma'auni na Ethernet, max siginar watsa siginar ta hanyar sauya PoE shine mita 100, wanda ke nufin sauya POE yana amfani da madaidaitan igiyoyin hanyar sadarwa na duniya don samar da wutar lantarki a cikin mita 100 kuma.Fiye da mita 100, bayanai na iya jinkirta da rasa.Domin tabbatar da ingancin aikin, yawanci muna ɗaukar mita 80-90 don cabling.
Wasu manyan na'urori na POE suna da'awar cewa za su iya watsa sigina har zuwa mita 250 a cikin hanyar sadarwar 100Mbps, shin gaskiya ne?
Ee, amma ana rage siginar siginar daga 100Mbps zuwa 10Mbps (bandwidth), sannan za a iya mika nisan watsa siginar zuwa mita 250 (kebul tare da tushen jan ƙarfe mara iskar oxygen).Wannan fasaha ba zai iya samar da babban bandwidth;Akasin haka, bandwidth ɗin yana matsawa daga 100Mbps zuwa 10Mbps, kuma wanda ba shi da kyau don watsa babban ma'anar hotunan sa ido.10Mbps yana nufin guda 2 ko 3 na kyamarorin IP na 4MP kawai za a iya isa ga wannan kebul na Cat5e, kowane bandwidth na kyamarar IP na 4MP shine Max 2-3Mbps a yanayin Dynamic.A cikin kalma, kebul na cibiyar sadarwa na Cat5e bai wuce mita 100 a cikin cabling ba.
Kebul na cibiyar sadarwa na ELZONETA Cat5e yana amfani da babban tsantsa mai ƙarancin iskar oxygen tare da diamita na 0.47mm jan ƙarfe, don dacewa da kyamarar PoE IP da ingantaccen madaidaicin madaidaicin PoE.Irin wannan yana tabbatar da watsa sigina da kwanciyar hankali na samar da wutar lantarki ga dukkan tsarin sa ido na CCTV.
Lokacin aikawa: Maris-10-2023