【https://www.cffiberlink.com/poe-switch/】
Eminyakeni yamuva nje, ukuthuthukiswa kobuchwepheshe bokuphakelwa kukagesi kwe-PoE, kusukela ku-100M kuya ku-Gigabit, kuya ku-Gigabit ephelele, umfutho wokuthuthukiswa kobuchwepheshe bokuphakelwa kukagesi we-PoE uya uqina futhi uqina. Ngochungechunge lwezinzuzo ezinjengokwenza lula ukufakwa nokusetshenziswa kwezinto zikagesi, ukonga amandla, nokuphepha, ukunikezwa kwamandla kwe-PoE sekuphenduke intandokazi entsha ezimeni ezifana nokufakwa okungenantambo, ukuqapha ezokuphepha, namagridi ahlakaniphile.
Kodwa-ke, abasebenzisi abaningi basenemibuzo eminingi mayelana nokunikezwa kwamandla we-PoE. Ake sibheke izinkinga eziyisikhombisa ezivamile zokuhlinzekwa kwamandla ka-POE.
1. Ungakhetha kanjani iswishi ye-PoE yokuqapha ukuphepha kanye nokufakwa okungenantambo
Kunezinhlobo eziningi zokushintshwa kwe-PoE, kusukela ku-100M kuya ku-1000M, kuya ku-gigabit egcwele, kanye nomehluko phakathi kwezinhlobo ezingalawulwa neziphethwe, kanye nomehluko enanini lamachweba ahlukene. Uma ufuna ukukhetha ukushintshwa okufanelekile, udinga ukucatshangelwa okubanzi nokuphelele. . Thatha iphrojekthi edinga ukuqapha okunencazelo ephezulu njengesibonelo.
Isinyathelo 1: Khetha inkinobho ye-PoE ejwayelekile (bheka umbuzo 2 ngesizathu)
Isinyathelo sesi-2: Khetha okuthi Fast or Gigabit Switch
Esixazululweni sangempela, kuyadingeka ukuhlanganisa inombolo yamakhamera, futhi ukhethe imingcele efana nokulungiswa kwekhamera, isilinganiso sebhithi, nenombolo yozimele. Abakhiqizi bemishini yokuqapha ejwayelekile njenge-Hikvision ne-Dahua bahlinzeka ngamathuluzi okubala komkhawulokudonsa ochwepheshe. Abasebenzisi bangasebenzisa amathuluzi ukubala umkhawulokudonsa odingekayo bese bekhetha iswishi ye-PoE efanelekile.
Isinyathelo sesi-3: Khetha af noma ekushintsheni okujwayelekile kwe-PoE
Ngokusho kokukhethwa kwamandla kwemishini yokuqapha. Isibonelo, uma kusetshenziswa ikhamera yomkhiqizo owaziwayo, amandla angu-12W max. Kulokhu, ukushintsha kwezinga le-af lidinga ukukhethwa. Amandla ekhamera yedome enencazelo ephezulu angu-30W max. Kulokhu, kuyadingeka ukusebenzisa inkinobho esezingeni.
Isinyathelo sesi-4: Khetha inombolo yezimbobo ekushintsheni
Ukushintsha kwe-PoE kungahlukaniswa ngezimbobo ezingu-4, izimbobo ezingu-8, izimbobo ezingu-16 nezimbobo ezingu-24 ngokuya ngenani lezimbobo, ezingaqapha ngokugcwele amandla, inani, indawo yesisetshenziswa, ukunikezwa kwamandla kweswishi nokukhethwa kwentengo.
2. Kungani kufanele kusetshenziselwe iswiwi ye-PoE evamile ekunikezeni amandla?
Okokuqala, kuyadingeka ukucacisa umehluko phakathi kokushintsha kwe-PoE okujwayelekile kanye nokushintshwa kwe-PoE okungajwayelekile. Iswishi evamile ye-PoE ine-chip yokulawula ye-PoE ngaphakathi, enomsebenzi wokuthola ngaphambi kokunikezwa kwamandla. Uma idivayisi ixhunyiwe, umjovo we-PoE uzothumela isignali kunethiwekhi ukuze kutholwe ukuthi itheminali kunethiwekhi iyidivayisi ye-PD esekela ukunikezwa kwamandla kwe-PoE.
Umkhiqizo we-PoE ongajwayelekile uyithuluzi elinamandla lentambo yenethiwekhi yokuphakela amandla. Inikeza amandla ngokushesha nje lapho ikhanya. Asikho isinyathelo sokutholwa. Kungakhathaliseki ukuthi itheminali iyidivayisi enikwe amandla ye-PoE noma cha, izohlinzeka ngamandla, futhi kulula kakhulu ukushisa idivayisi yokufinyelela.
Thatha i-Wangyue Technology MS uchungechunge lwamaswishi ajwayelekile e-PoE njengesibonelo. Ngemva kokukhanyisa, iswishi izothola ngokuzenzakalelayo idivayisi enikwe amandla. Uma ithola ukuthi idivayisi enamandla okungeyona i-PoE ixhunyiwe, izomisa ngokuzenzakalelayo ukunikezwa kwamandla ukuze ivikele idivayisi enikwe amandla futhi igweme ukutubeka. Isimo sezinto zokusebenza senzeka, okwenza inqubo yokunikezwa kwamandla ivikeleke kakhulu. Inqubo yokuthola imi kanje. Ngakho-ke, ukushintshwa okujwayelekile kwe-PoE kufanele kusetshenziselwe ukunikezwa kwamandla.
3. Indlela yokuhlukanisa phakathi kwe-PoE evamile kanye ne-PoE engeyona ejwayelekile ilula kakhulu, vele usebenzise i-multimeter ukuze ulinganise. Izindlela ezingezansi:
Qala idivayisi, lungisa i-multimeter ibe indawo yokukala i-voltage, bese usebenzisa amapeni amabili okuhlola e-multimeter ukuze uthinte izikhonkwane zokuphakela amandla zedivayisi ye-PSE (imvamisa 1/2, 3/6 noma 4/5, 7/8 of ichweba le-RJ45). ), uma idivayisi enokukhishwa okuzinzile kwe-48V noma amanye amanani kagesi (12V, 24V, njll.) ikalwa, iwumkhiqizo ongajwayelekile. Ngoba kule nqubo, i-PSE ayiboni idivayisi yokwamukela amandla (lapha, i-multimeter), futhi isebenzisa ngokuqondile i-48V noma amanye amanani we-voltage ukunikeza amandla.
Ngakolunye uhlangothi, uma i-voltage ingenakulinganiswa futhi inaliti ye-multimeter igxuma phakathi kuka-2 no-10V, i-POE evamile. Ngoba kulesi sigaba, i-PSE ihlola uhlangothi lwe-PD (nansi i-multimeter), futhi i-multimeter ayiyona i-PD esemthethweni, i-PSE ngeke inikeze amandla, futhi akukho voltage ezinzile ezokhiqizwa.
4. Ingabe ukunikezwa kwamandla kwe-PoE kuzinzile?
Ekwakhiweni kwangempela nasekusetshenzisweni, kusazoba nezimo lapho ukushintshwa kwe-PoE kungakwazi ukuhlinzeka ngogesi noma ukunikezwa kwamandla kagesi kuzinzile. Ingabe ukunikezwa kwamandla kwe-PoE kuzinzile ngempela?
Eqinisweni, ubuchwepheshe be-PoE buye bathuthukiswa iminyaka eminingi, futhi manje busezingeni eliphezulu kakhulu. Ukunikezwa kwamandla okujwayelekile kwe-PoE kuzinzile futhi kuphephe ngokwanele. Izimo eziningi zibangelwa ukushintsha kwe-PoE okungeyona evamile noma ikhwalithi yocingo iphansi kakhulu, noma idizayini yesixazululo ngokwayo ayinangqondo, ibanga lokunikezwa kwamandla kagesi alihlelwanga kahle, noma kuxhunywe amadivayisi amaningi anamandla aphezulu, futhi ukunikezwa kwamandla akwanele (ikakhulukazi lapho idivayisi yokuqapha ivula imodi yokushisa ebusuku). Isikhathi). Ngakho-ke, ekuthunyelweni kwangempela, uma ukunikezwa kwamandla kutholakala ukuthi akuzinzile, kuyadingeka ukuphenya izizathu zangaphandle kuqala.
5. Ingabe ukuphakama kwamandla okushintsha kwamandla e-PoE, kungcono?
Ngenxa yokuvela kwamadivayisi anamandla amakhulu njengamakhamera edome anencazelo ephezulu kanye namafoni evidiyo esikhathi sangempela, abakhiqizi bemishini yenethiwekhi bayaphithizela ukuthuthukisa amaswishi e-PoE ngamandla amakhulu. Kodwa-ke, imikhiqizo eminingi iphishekela kuphela ukuthuthukiswa kwamandla aphelele, indiva ubudlelwano phakathi kwamandla kanye nenani lezimbobo. Uma amandla ephezulu, nakanjani azokhuphula izindleko zizonke zedivayisi. Ngenxa yalokho, ukushintsha kwe-PoE okukhethwe umsebenzisi akusebenzi kakhulu futhi akubizi kakhulu.
Ngakho-ke, ekusetshenzisweni kwangempela, nquma amandla nenani lamadivayisi e-PD ngokwezinyathelo ezisembuzweni 1, bese ukhetha iswishi ye-PoE efaneleke kakhulu.
6. Ibanga lokuphakelwa kukagesi le-PoE lingaba amamitha ayi-100 kuphela?
I-Direct current ingadluliselwa kude kakhulu ngezintambo ezijwayelekile ze-Ethernet, kungani-ke ibanga lokudlulisela lilinganiselwe kumamitha ayi-100?
Iqiniso liwukuthi ibanga eliphezulu lokudlulisa le-switch ye-PoE lincike kakhulu ebangeni lokudluliswa kwedatha. Uma ibanga lokudlulisela lingaphezu kwamamitha ayi-100, ukulibaziseka kwedatha nokulahlekelwa kwephakethe kungase kwenzeke. Ngakho-ke, ohlelweni lwangempela lokwakha, ibanga lokudlulisela akufanele lidlule amamitha ayi-100. Kodwa-ke, sekuvele kukhona amaswishi e-PoE angafinyelela ibanga lokudlulisela elingamamitha angama-250. Isibonelo, amaswishi e-PoE ajwayelekile ochungechunge lwe-Wangyue MS asebenzisa umsebenzi we-L-PoE, onganweba ibanga lokudlulisela le-PoE libe ngamamitha angu-250 ukuhlangabezana nokuphakelwa kukagesi ebangeni elide. Kukholakala futhi ukuthi ngokuthuthukiswa kobuchwepheshe bokuhlinzeka ngogesi we-PoE esikhathini esizayo esiseduze, ibanga lokudlulisela lizonwetshwa ngokuqhubekayo.
Eyesibili intambo yenethiwekhi. Ikhebuli yenethiwekhi iphinde inqume ibanga lokuphakelwa kwamandla. Intambo yenethiwekhi enendinganiso kazwelonke eyedlula iSigaba 5 no-6 ingenzeka, ikakhulukazi ikhebula lenethiwekhi elijwayelekile likazwelonke elidlula iSigaba 6 nakanjani ingenzeka. Amanye amakhasimende asebenzisa izintambo zenethiwekhi ezishibhile nezisezingeni eliphansi, ezingakwazi ukuhlangabezana nezidingo zebanga lokuphakelwa kukagesi, futhi ngokuphambene zithi kunenkinga nge-switch yethu ye-Fengrunda PoE noma isihlukanisi se-PoE, kodwa lapho sithumela onjiniyela bezobuchwepheshe, kuphela ukuthola. out Asizange sibe nezinkinga ngokushintsha kwethu kwe-PoE futhi inkinga yaxazululwa ngemva kokufaka ikhebula lenethiwekhi.
Kunabantu abaningi abangakwazi ukuhlukanisa ukuthi ikhebula lenethiwekhi iyikhebuli yenethiwekhi evamile noma cha. Kunamakhebula enethiwekhi omgunyathi amaningi kakhulu emakethe. Ngizokunikeza izindlela ezimbalwa zokunquma ubuqiniso bekhebula lenethiwekhi, ngereferensi kuphela:
a. Ngekhebula lenethiwekhi elijwayelekile kazwelonke elijwayelekile, inani lokumelana ebangeni elingamamitha ayi-10 ukuya kumamitha ayi-100 lingaphansi kuka-10 ohms. Lokhu kungalinganiswa ngokuqondile nge-multimeter. Uma ingaphezu kuka-10 ohms, njengenani lokumelana lifinyelela ku-30 ohms, khona-ke le ntambo yenethiwekhi kufanele ibe inkohliso;
b. Ikhebula lenethiwekhi elijwayelekile likazwelonke elijwayelekile, ibhokisi elingamamitha angu-305, intengo yemakethe ilinganiselwa ku-450-500 yuan (intengo engenisiwe izoba phezulu), abangani abajwayelekile bangase bayithenge ngama-yuan angu-430, kodwa uma iphansi kunale ntengo. , empeleni kuwumbumbulu.
c. Izintambo ezijwayelekile zenethiwekhi kazwelonke zonke ziyithusi elimsulwa, noma ithusi elingenawo umoya-mpilo, kanye nezinye izinto ezifana nensimbi egqize ngethusi, i-aluminiyamu egqize nge-copper, njll. ziyinkohliso.
Isikhathi sokuthumela: Oct-26-2022