Za mtunda wamagetsi aKusintha kwa POE
Kutalika kwa mphamvu ya PoE kumatsimikiziridwa ndi chizindikiro cha deta ndi mtunda wotumizira, ndipo mtunda wotumizira wa chizindikiro cha deta umatsimikiziridwa ndi chingwe cha intaneti.

1. Zofunikira za chingwe cha netiweki Kuchepetsa kutsekeka kwa chingwe cha netiweki, kutalika kwa mtunda wotumizira, kotero choyamba, mtundu wa chingwe cha netiweki uyenera kutsimikiziridwa, ndipo mtundu wa chingwe cha netiweki uyenera kugulidwa.Ndi bwino kugwiritsa ntchito wapamwamba-gulu 5 maukonde chingwe.Mtunda wotumizira wamtundu wamba 5 ma siginecha a data ndi pafupifupi 100 metres.
Popeza pali miyezo iwiri ya PoE: miyezo ya IEEE802.af ndi IEEE802.3at, ali ndi zofunikira zosiyana pazingwe zapaintaneti za Cat5e, ndipo kusiyana kwake kumawonekera makamaka pakulepheretsa kofananako.Mwachitsanzo, pa chingwe cha netiweki cha mita 100 cha Gawo 5e, kutsekereza kofanana kwa IEEE802.3at kuyenera kukhala kosakwana 12.5 ohms, ndipo kwa IEEE802.3af kuyenera kukhala kosakwana 20 ohms.Zitha kuwoneka kuti chocheperako chofanana ndi impedance, ndipatali mtunda wopatsirana.

2. PoE muyezo
Kuti muwonetsetse mtunda wotumizira wosinthira wa PoE, zimatengera mphamvu yotulutsa mphamvu ya PoE.Iyenera kukhala yokwera momwe ingathere mkati mwa muyezo (44-57VDC).Mphamvu yamagetsi ya PoE switch port iyenera kutsatira IEEE802.3af/at standard.

Zowopsa zobisika za masiwichi a POE omwe si anthawi zonse
Mphamvu yamagetsi ya PoE yosagwirizana ndi mphamvu ya PoE yokhazikika.Ilibe chipangizo chowongolera cha PoE mkati, ndipo palibe njira yodziwira.Idzapereka mphamvu ku terminal ya IP mosasamala kanthu kuti imathandizira PoE.Ngati IP terminal ilibe magetsi a PoE, ndizotheka Kuwotcha doko la netiweki.

1. Sankhani PoE yocheperako "yosagwirizana".
Posankha kusintha kwa PoE, yesani kusankha yokhazikika, yomwe ili ndi zabwino izi:
Mapeto amagetsi (PSE) ndi mapeto olandila mphamvu (PD) amatha kumva ndikuwongolera mphamvu yamagetsi.
Tetezani bwino mbali yolandirira (nthawi zambiri IPC) kuti isawotchedwe ndi kugwedezeka kwamagetsi (zina zimaphatikizapo kuzungulira kwachidule, chitetezo cha opaleshoni, ndi zina).
Imatha kuzindikira mwanzeru ngati terminal imathandizira PoE, ndipo sichidzapereka mphamvu polumikizana ndi terminal yosakhala ya PoE.

Osakhala-masiwichi okhazikika a PoEnthawi zambiri alibe njira zotetezera zomwe zili pamwambazi kuti apulumutse ndalama, kotero pali zoopsa zina zachitetezo.Komabe, sizikutanthauza kuti PoE yosakhala yokhazikika singagwiritsidwe ntchito.Mphamvu yamagetsi ya PoE yosagwirizana ndi mphamvu yamagetsi yamagetsi, imatha kugwiritsidwanso ntchito ndikuchepetsa mtengo.

2. Osagwiritsa ntchito PoE "yabodza".Zida zabodza za PoE zimangophatikiza mphamvu ya DC mu chingwe cha netiweki kudzera pa chophatikizira cha PoE.Sangathe kuyendetsedwa ndi chosinthira cha PoE chokhazikika, apo ayi chipangizocho chidzayaka, chifukwa chake musagwiritse ntchito zida zabodza za PoE.Mu ntchito zauinjiniya, sikofunikira kokha kusankha masiwichi a PoE, komanso ma terminals a PoE.

Za vuto la kuchepa kwa switch
Kuchuluka kwa zigawo za masiwichi osinthika kumaphatikizapo kuwerengera kwa bandwidth, chitsanzo chosavuta:
Ngati chosinthira chokhala ndi doko la 100Mbps chikutsitsidwa pakatikati, bandwidth yothandiza ndi 45Mbps (magwiritsidwe a bandwidth ≈ 45%).Ngati chosinthira chilichonse chilumikizidwa ndi chipangizo chowunikira chomwe chili ndi kuchuluka kwa 15M, komwe kumakhala 15M ya bandwidth ya switch imodzi, ndiye kuti 45/15≈3, masiwichi atatu amatha kutsika.
Chifukwa chiyani kugwiritsa ntchito bandwidth kuli pafupifupi 45%?Mutu weniweni wa paketi ya Ethernet IP umakhala pafupifupi 25% ya kuchuluka kwa magalimoto, zomwe zilipo zenizeni zogwirizanitsa ndi 75%, ndipo bandwidth yosungidwa imatengedwa kuti ndi 30% muzogwiritsira ntchito, kotero kuti chiwerengero chogwiritsira ntchito bandwidth chikuyembekezeka kukhala 45% .

Za chizindikiritso cha doko
1. Kufikira ndi uplink madoko
Kusintha madoko amagawidwa kukhala madoko olowera ndi uplink kuti asiyanitse bwino ntchito ndikuchepetsa kukonza, potero kuwonetsa maudindo osiyanasiyana.
Doko lolowera: Monga momwe dzinalo limatanthawuzira, ndi mawonekedwe olumikizidwa mwachindunji ku terminal (IPC, opanda zingwe AP, PC, ndi zina).
Doko la Uplink: Doko lolumikizidwa ndi netiweki yophatikizira kapena pakatikati, nthawi zambiri yokhala ndi mawonekedwe apamwamba, siligwirizana ndi ntchito ya PoE.