Mphamvu pa Efaneti (PoE) ndi ukadaulo wamagetsi ozikidwa pa netiweki yapafupi (LAN), yomwe imatha kutumiza mphamvu ndi data ku chipangizocho kudzera pa chingwe cha netiweki mu Efaneti. Kugwiritsa ntchito ukadaulo uwu kungachepetse kwambiri ndalama zogwirira ntchito ndikupulumutsa nthawi yogwira ntchito. Pakalipano, pali masiwichi osiyanasiyana otengera luso la PoE pamsika, makamaka ma switch a PoE, ma switch a PoE +, ndi ma switch a PoE ++.Chonde tsatirani.Chithunzi cha JHA TECHkuti mumvetsetse kusiyana pakati pa masiwichi awa.

Kodi PoE ndi chiyani? Kusintha kwa PoE ndi chiyani?

PoE (yomwe imatchedwanso IEEE 802.3af standard) ndi muyeso watsopano wozikidwa pa Power over Ethernet system yomwe inalengezedwa ndi gulu la ogwira ntchito la IEEE 802.3 mu 2003. Mulingo umanena kuti chipangizo cholandirira mphamvu (PD), monga foni ya VoIP. , imangofunika kugwiritsa ntchito mawiri awiri opotoka a chingwe chimodzi cha netiweki kuti chiziyendetsedwa panthawi yolandila mphamvu, ndipo kugwiritsa ntchito kwake mphamvu ya PoE kumatha kufikira 12.95W.

PoE switch, yomwe imatchedwanso PoE power supply switch, ndi ntchito yotengera ukadaulo wa PoE. Ndi chosinthira chomwe chingapereke mphamvu ndi kutumizira deta ku malo olandirira panthawi imodzimodzi kudzera pa chingwe cha netiweki, ndipo ndi cha zida zopangira magetsi (PSE). Nthawi zambiri, chosinthira cha PoE chogwirizana ndi muyezo wa 802.3af chingathe kuthandizira magetsi opitilira 15.4W padoko lililonse, ndipo voteji yamagetsi ndi 44V-57V. Mphamvu yolowera ya chipangizo cha PoE cholumikizidwa ndi switch ya PoE iyi ndi 37V-57V.

JHA-P10208CBM 8 PORT POE SITCH

Kodi PoE+ ndi chiyani? Kodi switch ya PoE+ ndi chiyani?

PoE + (yomwe imatchedwanso IEEE 802.3af standard), monga kukweza kwaukadaulo wa PoE, ndi njira yaukadaulo ya PoE yomwe idatulutsidwa mu 2009. Pogwiritsa ntchito ukadaulo wa PoE, zida zina zolandila mphamvu monga ma AP opanda zingwe zimafunikira mphamvu zambiri. kuposa 12.95W. Pofuna kuthetsa vutoli, gulu logwira ntchito la IEEE 802.3 linatulutsa luso la PoE + lopangidwa kuti lipereke mphamvu zapamwamba pazida.

Kusintha kwa PoE + kuli kofanana ndi kusintha kwa PoE komwe tatchula pamwambapa, ndipo kumaperekanso mphamvu ku chipangizo cha PoE kudzera pa chingwe cha netiweki. Kusiyana kwake ndikuti mphamvu yayikulu kwambiri padoko lililonse la switch ya PoE + ndi 30W, ndipo voteji yamagetsi ndi 50V-57V. Mphamvu yayikulu yolandilidwa ndi chipangizo cholandirira mphamvu imatha kukulitsidwa mpaka 25.5W, ndipo voteji imatha kuonjezedwa mpaka 42.5V-57V.

Kodi PoE++ ndi chiyani? Kodi kusintha kwa PoE ++ ndi chiyani?

Ndikukula kosalekeza kwa msika wa ntchito za PoE, muyezo wa IEEE 802.3 wawonjezera mulingo wa IEEE 802.3bt. Pakadali pano, ukadaulo wa PoE ++ wawonekeranso. Pansi pa IEEE 802.3bt, teknoloji ya PoE ++ ili ndi mitundu iwiri ya nthambi. Ukadaulo umodzi wa PoE ++ wotchedwa Type3 ukhoza kuyendetsedwa ndi mawiri awiri kapena anayi opindika a chingwe cha netiweki womwewo, ndipo ukhoza kupereka mpaka 51W ya mphamvu yolowera pa chipangizo cholandirira mphamvu. Wina ndi ukadaulo wa Type4PoE ++, womwe umayenera kupereka mphamvu ku PoE. Chipangizo chotsiriza kudzera pamagulu onse a chingwe cha netiweki, ndipo mphamvu yolowera imatha kufikira 71W. Kuphatikiza apo, pali ukadaulo wa PoE wozikidwa pa mulingo wa IEEE 802.3bt wotchedwa UPOE (mphamvu zonse pa Ethernet). Tekinoloje iyi ndi ya Cisco, ndipo njira yogwirira ntchito ikufanana ndi ukadaulo wa Type3PoE (PoE ++), ndipo mphamvu yolowera yomwe ingaperekedwe ku chipangizo cholandirira ndi 51W. Chifukwa chake, anthu ena ogulitsa nawonso aziwona UPOE ngati PoE ++.

Monga kukweza kwa ma switch a PoE ndi ma switch a PoE +, masiwichi a PoE ++ amatha kupereka magetsi ofikira 60W padoko lililonse la masiwichi a Type3PoE ++, ndi 100W ya Type4. Onani pa tebulo ili m'munsimu kuti muwone magawo enieni a ma switch a PoE ++ ndi mitundu ina iwiri yosinthira.

JHA-P420024B 24 PORTS POE++ SITCH