【https://www.cffiberlink.com/poe-switch/】
Kwiminyaka yakutshanje, uphuhliso lwetekhnoloji yobonelelo lwamandla e-PoE, ukusuka kwi-100M ukuya kwi-Gigabit, ukuya kwi-Gigabit epheleleyo, ukuqhubela phambili kophuhliso lobuchwepheshe bokubonelela ngombane we-PoE uya uqina kwaye unamandla. Ngothotho lweenzuzo ezinjengokwenza lula ukufakela kunye nokusasazwa kwezixhobo zombane, ukonga amandla, kunye nokhuseleko, unikezelo lwamandla lwe-PoE luye lwaba yintandokazi entsha kwiimeko ezinje ngokhuseleko olungenazingcingo, ukujonga ukhuseleko, kunye neegridi ezihlakaniphile.
Nangona kunjalo, uninzi lwabasebenzisi basenemibuzo emininzi malunga nonikezelo lwamandla lwe-PoE. Makhe sijonge kwiingxaki ezisixhenxe eziqhelekileyo zobonelelo lombane lwe-POE.
1. Unokukhetha njani ukutshintshela kwe-PoE yokubeka iliso kukhuseleko kunye ne-wireless coverage
Kukho iintlobo ezininzi zokutshintsha kwe-PoE, ukusuka kwi-100M ukuya kwi-1000M, ukuya kwi-gigabit epheleleyo, kunye nokwahlukana phakathi kweentlobo ezingalawulwayo nezilawulwayo, kunye nokwahlukana kwinani lamachweba ahlukeneyo. Ukuba ufuna ukukhetha utshintsho olufanelekileyo, kufuneka uqwalaselwe ngokubanzi kunye nolubanzi. . Thatha iprojekthi efuna ukubeka iliso kwinkcazo ephezulu njengomzekelo.
Inyathelo 1: Khetha iswitshi esemgangathweni yePoE (jonga umbuzo 2 ngesizathu)
Inyathelo 2: Khetha Fast okanye Gigabit Switch
Kwisisombululo sangempela, kuyimfuneko ukudibanisa inani leekhamera, kwaye ukhethe iiparameters ezifana nesisombululo sekhamera, i-bit rate, kunye nenombolo yefreyimu. Abavelisi bezixhobo zokubeka iliso eziphambili ezifana ne-Hikvision kunye ne-Dahua babonelela ngezixhobo zokubala ze-bandwidth. Abasebenzisi banokusebenzisa izixhobo zokubala i-bandwidth efunekayo kwaye ukhethe i-switch ye-PoE efanelekileyo.
Inyathelo lesi-3: Khetha af okanye kwiswitshi yePoE eqhelekileyo
Ngokutsho isixhobo esweni ukhetho amandla. Ngokomzekelo, ukuba ikhamera ye-brand eyaziwayo isetyenzisiweyo, amandla yi-12W max. Kule meko, ukutshintshwa komgangatho we-af kufuneka kukhethwe. Amandla ekhamera yedome enenkcazo ephezulu yi-30W max. Kule meko, kuyimfuneko ukusebenzisa i-switch esemgangathweni.
Inyathelo 4: Khetha inani lezibuko kwiswitshi
Ukutshintsha kwe-PoE kunokohlulwa kube ngamazibuko angama-4, amazibuko ayi-8, amazibuko angama-16 kunye namazibuko angama-24 ngokwenani lamazibuko, anokubeka iliso ngokubanzi amandla, ubungakanani, indawo yezixhobo, unikezelo lwamandla lokutshintsha kunye nokukhethwa kwexabiso.
2. Kutheni kufuneka kusetyenziswe iswitshi esemgangathweni yePoE kubonelelo lombane?
Okokuqala, kuyimfuneko ukucacisa umahluko phakathi kokutshintsha kwe-PoE okusemgangathweni kunye nokutshintsha kwe-PoE okungaqhelekanga. Ukutshintshwa kombane oqhelekileyo we-PoE une-chip yokulawula i-PoE ngaphakathi, enomsebenzi wokufumanisa ngaphambi kokunikezelwa kwamandla. Xa isixhobo sidityanisiwe, i-injector ye-PoE iya kuthumela isignali kwinethiwekhi ukuze ibone ukuba i-terminal kwinethiwekhi sisixhobo sePD esixhasa unikezelo lwamandla lwe-PoE.
Imveliso ye-PoE engekho mgangathweni sisixhobo esinamandla sonikezelo lwamandla enethiwekhi yentambo yombane. Inika amandla ngokukhawuleza yakuba ilayitiwe. Akukho nyathelo lokufumanisa. Kungakhathaliseki ukuba i-terminal sisixhobo esinikwe amandla se-PoE okanye hayi, siya kunika amandla, kwaye kulula kakhulu ukutshisa isixhobo sokufikelela.
Thatha iWangyue Technology MS uthotho lweeswitshi ezisemgangathweni zePoE njengomzekelo. Emva kokukhanya kombane, iswitshi iya kubona ngokuzenzekelayo isixhobo esiqhutywayo. Ukuba ifumanisa ukuba isixhobo esingenalo i-PoE sixhunyiwe, siya kumisa ngokuzenzekelayo unikezelo lwamandla ukukhusela isixhobo esinamandla kwaye siphephe ukutshiswa. Imeko yezixhobo zenzeke, okwenza inkqubo yokunikezelwa kwamandla ikhuseleke ngakumbi. Inkqubo yokufumanisa imi ngolu hlobo lulandelayo. Ke ngoko, kufuneka kusetyenziswe iswitshi esemgangathweni yePoE ukubonelela ngombane.
3. Indlela yokwahlula phakathi kwe-PoE esemgangathweni kunye ne-PoE engekho-standard ilula kakhulu, sebenzisa nje i-multimeter ukulinganisa. Iindlela ezingezantsi:
Qala isixhobo, lungisa i-multimeter kwindawo yokulinganisa umbane, kwaye usebenzise iipeni zovavanyo ezimbini ze-multimeter ukuze uchukumise izikhonkwane zombane zesixhobo se-PSE (ngokuqhelekileyo 1/2, 3/6 okanye 4/5, 7/8 izibuko le-RJ45). ), ukuba isixhobo esinemveliso ezinzileyo ye-48V okanye amanye amaxabiso ombane (12V, 24V, njl.) silinganiswa, yimveliso engeyiyo eqhelekileyo. Kuba kule nkqubo, i-PSE ayiboni isixhobo sokufumana amandla (apha, i-multimeter), kwaye isebenzisa ngokuthe ngqo i-48V okanye amanye amaxabiso ombane ukunika amandla.
Ngokwahlukileyo, ukuba i-voltage ayinakulinganiswa kwaye inaliti ye-multimeter igxuma phakathi kwe-2 kunye ne-10V, yi-POE eqhelekileyo. Ngenxa yokuba ngeli nqanaba, i-PSE ivavanya icala lePD (nantsi i-multimeter), kwaye i-multimeter ayiyona iPD yomthetho, i-PSE ayiyi kunika amandla, kwaye akukho mbane ozinzile uya kuveliswa.
4. Ingaba umbane we-PoE uzinzile?
Kulwakhiwo lwangempela kunye nesicelo, kuya kuhlala kukho iimeko apho utshintsho lwe-PoE alukwazi ukubonelela umbane okanye unikezelo lwamandla aluzinzile. Ngaba unikezelo lwamandla lwe-PoE luzinzile ngokwenene?
Ngapha koko, itekhnoloji ye-PoE iphuhliswe iminyaka emininzi, kwaye ngoku ikwinqanaba eliqolileyo kakhulu. Umbane osemgangathweni we-PoE uzinzile kwaye ukhuselekile ngokwaneleyo. Uninzi lweemeko zibangelwa ukutshintshwa kwe-PoE engeyiyo eyomgangatho okhethiweyo okanye umgangatho wocingo uphantsi kakhulu, okanye uyilo lwesisombululo ngokwalo alunangqiqo, umgama wokubonelela ngombane awucwangciswanga kakuhle, okanye izixhobo ezininzi zamandla aphezulu zixhunyiwe, kwaye ukunikezelwa kwamandla akwanelanga (ngokukodwa xa isixhobo sokubeka iliso sivula imodi yokufudumala ebusuku). Ixesha). Ngoko ke, ekuhanjisweni kwangempela, ukuba ukunikezelwa kwamandla kufunyenwe ukungazinzi, kuyimfuneko ukuphanda izizathu zangaphandle kuqala.
5. Ngaba aphezulu amandla ombane we-PoE, ngcono?
Ngenxa yokuvela kwezixhobo zamandla aphezulu njengeekhamera zedome ezinenkcazo ephezulu kunye neefowuni zevidiyo zexesha lokwenyani, abavelisi bezixhobo zenethiwekhi bayagxalathelana ukuphuhlisa iiswitshi zePoE ngamandla apheleleyo. Nangona kunjalo, iimveliso ezininzi zilandela kuphela ukuphuculwa kwamandla apheleleyo, ukungahoywa ubudlelwane phakathi kwamandla kunye nenani lamachweba. Xa amandla aphezulu, ngokuqinisekileyo kuya kwandisa ixabiso elipheleleyo lesixhobo. Ngenxa yoko, utshintsho lwe-PoE olukhethwe ngumsebenzisi alusebenzi kakhulu kwaye luyindleko.
Ngoko ke, ekuhanjisweni kwangempela, misela amandla kunye nobuninzi bezixhobo zePD ngokwamanyathelo okumbuzo 1, kwaye ukhethe i-PoE efanelekileyo kakhulu yokutshintsha.
6. Umgama wobonelelo lwamandla we-PoE unokuba li-100 leemitha kuphela?
Umda othe ngqo unokuhanjiswa kude kakhulu ngeentambo ze-Ethernet eziqhelekileyo, kutheni ke ukuba umgama wothumelo ukhawulelwe kwiimitha ezili-100?
Inyaniso kukuba umgama ophezulu wothumelo we-PoE switch ngokuyinhloko uxhomekeke kumgama wothumelo lwedatha. Xa umgama wothumelo udlula iimitha ezili-100, ukulibaziseka kwedatha kunye nokulahleka kwepakethi kunokwenzeka. Ngoko ke, kwinkqubo yokwakhiwa kwangempela, umgama wothumelo kufuneka ungabi ngaphezu kweemitha ezili-100. Nangona kunjalo, sele kukho ezinye iiswitshi ze-PoE ezinokufikelela kumgama wothumelo lweemitha ezingama-250. Ngokomzekelo, i-Wangyue MS i-switch standard ye-PoE ye-switch switch isebenzisa umsebenzi we-L-PoE, onokundisa umgama wokuhanjiswa kwe-PoE ukuya kwiimitha ezingama-250 ukuhlangabezana nokunikezelwa kwamandla omde. Kukwakholelwa ukuba ngophuhliso lwetekhnoloji yobonelelo lwamandla e-PoE kungekudala, umgama wothumelo uya kwandiswa ngakumbi.
Okwesibini yintambo yenethiwekhi. Intambo yenethiwekhi ikwamisela umgama wonikezelo lwamandla. Intambo yothungelwano enomgangatho kazwelonke odlula iCandelo 5 no-6 inokwenzeka, ngakumbi intambo yenethiwekhi esemgangathweni kazwelonke edlula iCandelo 6 ngokuqinisekileyo inokwenzeka. Abanye abathengi basebenzisa iintambo zothungelwano ezinexabiso eliphantsi nezikumgangatho ophantsi, ezingenako ukukhawulelana neemfuno zomgama wonikezelo lwamandla, kwaye ngokuchaseneyo bathi kukho ingxaki ngokutshintsha kwethu i-Fengrunda PoE okanye i-PoE splitter, kodwa xa sithumela iinjineli zobugcisa ngaphezulu, ukufumana kuphela ingxaki. ngaphandle Asizange sibe nayo nayiphi na imiba kunye neenguqu zethu ze-PoE kwaye umcimbi wasonjululwa emva kokubuyisela intambo yenethiwekhi.
Kukho abantu abaninzi abangakwaziyo ukwahlula ukuba intambo yenethiwekhi yintambo eqhelekileyo yenethiwekhi okanye hayi. Zininzi kakhulu iintambo zenethiwekhi zomgunyathi kwimarike. Ndiza kukunika iindlela ezimbalwa zokumisela ubunyani bentambo yenethiwekhi, ngereferensi kuphela:
a. Kwintambo yenethiwekhi eqhelekileyo yelizwe jikelele, ixabiso lokumelana kumgama weemitha ezili-10 ukuya kwi-100 yeemitha lingaphantsi kwe-10 ohms. Oku kunokulinganiswa ngokuthe ngqo nge-multimeter. Xa kukhulu kune-10 ohms, njengexabiso lokumelana lifikelela kwi-30 ohms, ke le ntambo yenethiwekhi kufuneka ibe yinkohliso;
b. Intambo yenethiwekhi eqhelekileyo eqhelekileyo yesizwe, ibhokisi emalunga neemitha ezingama-305, ixabiso lemarike limalunga ne-450-500 yuan (ixabiso elithengwe kumazwe angaphandle liya kuba phezulu), abahlobo abaqhelekileyo banokuyithenga nge-yuan engama-430, kodwa ukuba ingaphantsi kweli xabiso. , ngokusisiseko ayiyonyani.
c. Iintambo zothungelwano eziqhelekileyo ezisemgangathweni wesizwe zonke zikopolo olusulungekileyo, okanye ubhedu olungenayo ioksijini, kunye nezinye izinto ezifana nentsimbi ehonjiswe ngobhedu, i-aluminiyam ene-copper-clad, njl.
Ixesha lokuposa: Oct-26-2022