【https://www.cffiberlink.com/poe-switch/】
M'zaka zaposachedwa, chitukuko chaukadaulo wamagetsi a PoE, kuchokera ku 100M kupita ku Gigabit, kupita ku Gigabit yathunthu, kukwera kwaukadaulo waukadaulo wa PoE kukukulirakulira. Ndi maubwino angapo monga kuphweka kuyika ndi kuyika zida zamagetsi, kupulumutsa mphamvu, ndi chitetezo, magetsi a PoE asanduka chokondedwa chatsopano muzochitika monga kuphimba opanda zingwe, kuyang'anira chitetezo, ndi ma gridi anzeru.
Komabe, ogwiritsa ntchito ambiri akadali ndi mafunso ambiri okhudza magetsi a PoE. Tiyeni tiwone mavuto asanu ndi awiri omwe amapezeka pamagetsi a POE.
1. Momwe mungasankhire chosinthira cha PoE chowunikira chitetezo komanso kulumikizidwa opanda zingwe
Pali mitundu yambiri ya ma switch a PoE, kuyambira 100M mpaka 1000M, mpaka gigabit yodzaza, komanso kusiyana pakati pa mitundu yosayendetsedwa ndi yoyendetsedwa, komanso kusiyana kwa madoko osiyanasiyana. Ngati mukufuna kusankha chosinthira choyenera, muyenera kuganizira mozama komanso mozama. . Tengani pulojekiti yomwe imafuna kuyang'anitsitsa kwapamwamba monga chitsanzo.
Khwerero 1: Sankhani chosinthira cha PoE (onani funso 2 pazifukwa zake)
Khwerero 2: Sankhani Fast kapena Gigabit Switch
Mu yankho lenileni, m'pofunika kuphatikiza chiwerengero cha makamera, ndi kusankha magawo monga kamera kusamvana, pang'ono mlingo, ndi chimango nambala. Opanga zida zazikulu zowunikira monga Hikvision ndi Dahua amapereka zida zowerengera za bandwidth. Ogwiritsa ntchito amatha kugwiritsa ntchito zida kuwerengera bandwidth yomwe ikufunika ndikusankha chosinthira choyenera cha PoE.
Khwerero 3: Sankhani af kapena pakusintha kokhazikika kwa PoE
Malinga ndi polojekiti zida kusankha mphamvu. Mwachitsanzo, ngati kamera yamtundu wodziwika bwino imagwiritsidwa ntchito, mphamvuyo ndi 12W max. Pankhaniyi, kusintha kwa af standard kuyenera kusankhidwa. Mphamvu ya kamera yodziwika bwino kwambiri ndi 30W max. Pankhaniyi, ndikofunikira kugwiritsa ntchito switch pa-standard.
Khwerero 4: Sankhani chiwerengero cha madoko pa switch
Kusintha kwa PoE kumatha kugawidwa m'madoko 4, madoko 8, madoko 16 ndi madoko 24 malinga ndi kuchuluka kwa madoko, omwe amatha kuyang'anira bwino mphamvu, kuchuluka, malo a zida, mphamvu yosinthira ndi kusankha kwamitengo.
2. Chifukwa chiyani switch yokhazikika ya PoE iyenera kugwiritsidwa ntchito popereka magetsi?
Choyamba, ndikofunikira kumveketsa bwino kusiyana pakati pa masiwichi a PoE ndi ma switch omwe si a PoE. Kusintha kwamagetsi kwa PoE kokhazikika kumakhala ndi chipangizo chowongolera cha PoE mkati, chomwe chimakhala ndi ntchito yozindikira mphamvu isanaperekedwe. Chipangizocho chikalumikizidwa, jekeseni ya PoE imatumiza chizindikiro ku netiweki kuti izindikire ngati cholumikizira mu netiweki ndi chipangizo cha PD chomwe chimathandizira magetsi a PoE.
Chogulitsa chomwe sichili wamba cha PoE ndi chida champhamvu chamagetsi chamagetsi chamagetsi. Imapereka mphamvu ikangoyatsidwa. Palibe njira yodziwira. Ziribe kanthu kaya terminal ndi chipangizo choyendetsedwa ndi PoE kapena ayi, ipereka mphamvu, ndipo ndikosavuta kuwotcha chipangizocho.
Tengani Wangyue Technology MS mndandanda wosinthira wa PoE monga chitsanzo. Mukatha kuyatsa, chosinthiracho chimangozindikira chipangizo choyendetsedwa. Ikazindikira kuti chipangizo chopanda mphamvu cha PoE chalumikizidwa, chimangoyimitsa magetsiwo kuti chiteteze chipangizocho ndikupewa kutopa. Chikhalidwe cha zipangizo zimachitika, kupanga njira yoperekera magetsi kukhala yotetezeka. Njira yodziwikiratu ili motere. Chifukwa chake, chosinthira cha PoE chokhazikika chiyenera kugwiritsidwa ntchito popereka mphamvu.
3. Momwe mungasiyanitsire pakati pa PoE yokhazikika ndi PoE yosavomerezeka ndi yosavuta, ingogwiritsani ntchito multimeter kuti muyese. Njira monga pansipa:
Yambitsani chipangizocho, sinthani ma multimeter kuti akhale momwe amayezera voteji, ndikugwiritsa ntchito zolembera ziwiri zoyesa za multimeter kuti mugwire mapini amagetsi a chipangizo cha PSE (nthawi zambiri 1/2, 3/6 kapena 4/5, 7/8 ya doko la RJ45). ), ngati chipangizo chokhala ndi mphamvu yokhazikika ya 48V kapena ma voliyumu ena (12V, 24V, etc.) chikuyezedwa, ndi chinthu chosavomerezeka. Chifukwa pochita izi, PSE sichizindikira chida cholandirira mphamvu (pano, multimeter), ndipo imagwiritsa ntchito 48V kapena ma voliyumu ena kuti apereke mphamvu.
Mosiyana ndi zimenezi, ngati voteji sangathe kuyeza ndi singano multimeter kulumpha pakati 2 ndi 10V, ndi muyezo POE. Chifukwa panthawiyi, PSE ikuyesa mbali ya PD (pano pali multimeter), ndipo multimeter si PD yovomerezeka, PSE sidzapereka mphamvu, ndipo palibe magetsi okhazikika omwe adzapangidwe.
4. Kodi magetsi a PoE ndi okhazikika?
Pakumanga kwenikweni ndi kugwiritsa ntchito, padzakhalabe nthawi pomwe kusintha kwa PoE sikungathe kupereka mphamvu kapena magetsi sakhazikika. Kodi magetsi a PoE ndi okhazikika?
M'malo mwake, ukadaulo wa PoE wapangidwa kwa zaka zambiri, ndipo tsopano uli pamlingo wokhwima kwambiri. Mphamvu ya PoE yokhazikika ndi yokhazikika komanso yotetezeka mokwanira. Nthawi zambiri zimachitika chifukwa chakusintha kwa PoE komwe sikunali koyenera kapena mtundu wa waya ndi wotsika kwambiri, kapena njira yothetsera vutoli ndiyopanda nzeru, mtunda wamagetsi sunakonzedwe bwino, kapena zida zambiri zamphamvu kwambiri zimalumikizidwa, ndipo mphamvu yamagetsi ndi yosakwanira (makamaka pamene chipangizo chowunikira chimayatsa njira yowotchera usiku). Nthawi). Choncho, pakutumizidwa kwenikweni, ngati magetsi akupezeka kuti sali okhazikika, m'pofunika kufufuza zifukwa zakunja poyamba.
5. Kodi kukwezeka kwamphamvu kwa switch yamagetsi ya PoE, ndikwabwinoko?
Chifukwa cha kuwonekera kwa zida zamphamvu kwambiri monga makamera a dome odziwika bwino komanso mafoni apakanema anthawi yeniyeni, opanga zida zapaintaneti akuthamangira kupanga ma switch a PoE okhala ndi mphamvu zambiri. Komabe, zinthu zambiri zimangotsatira kuwongolera mphamvu zonse, kunyalanyaza ubale pakati pa mphamvu ndi kuchuluka kwa madoko. Mphamvu ikakhala yokwera, idzawonjezera mtengo wonse wa chipangizocho. Zotsatira zake, kusintha kwa PoE kosankhidwa ndi wogwiritsa ntchito sikothandiza kwambiri komanso kopanda ndalama.
Chifukwa chake, pakutumiza kwenikweni, dziwani mphamvu ndi kuchuluka kwa zida za PD molingana ndi masitepe omwe akufunsidwa 1, ndikusankha chosinthira choyenera kwambiri cha PoE.
6. Kutalika kwa magetsi a PoE kungakhale mamita 100 okha?
Direct current imatha kufalikira patali kwambiri ndi zingwe zokhazikika za Efaneti, ndiye chifukwa chiyani mtunda wotumizira umakhala wochepera mamita 100?
Chowonadi ndi chakuti mtunda wautali wotumizira wosinthira wa PoE makamaka umadalira mtunda wotumizira deta. Pamene mtunda wotumizira uposa mamita 100, kuchedwa kwa deta ndi kutayika kwa paketi kumatha kuchitika. Choncho, pakumanga kwenikweni, mtunda wotumizira suyenera kupitirira mamita 100. Komabe, pali kale masiwichi a PoE omwe amatha kufikira mtunda wamamita 250. Mwachitsanzo, masiwichi a Wangyue MS okhazikika a PoE amagwiritsa ntchito ntchito ya L-PoE, yomwe imatha kukulitsa mtunda wotumizira ku PoE mpaka mita 250 kuti ikwaniritse magetsi akutali. Akukhulupiriranso kuti ndi chitukuko chaukadaulo wamagetsi a PoE posachedwa, mtunda wotumizira udzakulitsidwa.
Yachiwiri ndi chingwe cha netiweki. Chingwe cha netiweki chimatsimikiziranso mtunda wamagetsi. Chingwe cha netiweki chokhala ndi mulingo wapadziko lonse wopitilira Gawo 5 ndi 6 ndizotheka, makamaka chingwe chamtundu wamtundu wapadziko lonse lapansi chopitilira Gawo 6 ndichotheka. Makasitomala ena amagwiritsa ntchito zingwe zotsika mtengo komanso zotsika mtengo, zomwe sizingakwaniritse mtunda wofunikira pamagetsi, ndipo kunenanso kuti pali vuto ndi kusintha kwathu kwa Fengrunda PoE kapena poE splitter, koma titatumiza akatswiri aukadaulo, kungopeza. out Sitinakhale ndi vuto lililonse ndi ma switch athu a PoE ndipo nkhaniyi idathetsedwa titasintha chingwe cha netiweki.
Pali anthu ambiri omwe sangathe kusiyanitsa ngati chingwe cha netiweki ndi chingwe chokhazikika kapena ayi. Pali zingwe zambiri zabodza zapamsika pamsika. Ndikupatsani njira zingapo zodziwira zowona za chingwe cha netiweki, kuti mungotchula:
a. Kwa chingwe chokhazikika chapadziko lonse lapansi, kukana kwa mtunda wa 10 metres mpaka 100 metres ndikochepera 10 ohms. Izi zitha kuyezedwa mwachindunji ndi multimeter. Zikakhala zazikulu kuposa 10 ohms, monga kukana mtengo kumafika 30 ohms, ndiye kuti chingwe cha netiweki chiyenera kukhala chabodza;
b. Chingwe chokhazikika chamtundu wamtundu wanthawi zonse, bokosi la pafupifupi 305 metres, mtengo wamsika ndi pafupifupi 450-500 yuan (mtengo wobwereketsa udzakhala wokwera), abwenzi odziwika atha kugulanso 430 yuan, koma ngati ndi wotsika kuposa mtengo uwu. , kwenikweni ndi zabodza.
c. Zingwe zokhazikika zapadziko lonse lapansi ndi zamkuwa wangwiro, kapena mkuwa wopanda okosijeni, ndi zida zina monga chitsulo chovekedwa ndi mkuwa, aluminiyamu yovala zamkuwa, ndi zina.
Nthawi yotumiza: Oct-26-2022