IShintshanisa amasheya PoEyin ashintshaesekela ukunikezwa kwamandla kukhebuli yenethiwekhi. Uma kuqhathaniswa nokujwayelekileshintsha, itheminali eyamukela amandla (efana ne-AP, ikhamera yedijithali, njll.) ayidingi ukuxhunywa ngentambo ukuze kunikezwe amandla, futhi ukwethembeka kwayo yonke inethiwekhi kuphakeme.
Umehluko phakathi kokushintsha kwe-PoE namaswishi ajwayelekile
I-PoEshintshayehlukile kokujwayelekileshintsha, POEshintshaayikwazi ukunikeza kuphela umsebenzi wokudlulisela ojwayelekileshintsha, kodwa futhi unikeze umsebenzi wokuphakelwa kwamandla kwenye indawo yekhebula yenethiwekhi.Isibonelo, kunekhamera yokugada yedijithali (idinga ukunikezwa kwamandla ukuze isebenze ngokujwayelekile), kodwa ayixhumekile kugesi, kodwa ixhunywe endaweni evamile.shintshangentambo yenethiwekhi. Kulokhu, ikhamera ayisebenzi. Uma ikhamera ingaxhumekile kumandla kagesi, kodwa ikhebula lenethiwekhi yokudlulisela ixhunywe ku-PoEshintsha, ikhamera ingasebenza ngokujwayelekile.
I-PoE ihlukaniswe yaba indinganiso nengajwayelekile. Okujwayelekile kuzothola ukuthi isisetshenziswa senethiwekhi esixhunyiwe sinendawo yokwamukela amandla e-PoE. Uma kukhona, izonikwa amandla, uma kungenjalo, ngeke inikwe amandla futhi inikeze kuphela ukudluliswa kwedatha. Ezingezona ezijwayelekile zizonikezwa amandla ngqo. Uma lesi sixhumanisi singatholwa, okokusebenza kungase kushe.
I-POEshintshaubuchwepheshe kanye nezinzuzo
Kunamazinga amabili okushintsha kwe-PoE okujwayelekile emakethe, i-IEEE802.3af kanye ne-802.3at, echaza ngokulandelana amandla okunikezwa kwamandla angu-15.4W kanye nama-30W, kodwa ngenxa yokulahleka kwenqubo yokudlulisa, ugesi wangempela ungu-12.95W. kanye no-25．5W, i-voltage elinganiselwe ingu-DC 48v.
Lapho usebenzisa i-PoEshintshaesekela izinga le-IEEE802.3af, amandla edivayisi enikwe amandla awakwazi ukudlula u-12.95W; ngokufanayo, lapho usebenzisa i-PoEshintshakwezinga elijwayelekile le-IEEE802.3, amandla edivayisi enikwe amandla awakwazi ukudlula u-25.5W.
Ngokuvamile, i-PoEshintshaesekela i-IEEE802.3af/at standard ngesikhathi esifanayo, ukunikezwa kwamandla kuyavumelana. Isibonelo, uma ixhunywe kudivayisi ye-5W, inikeza amandla angu-5W; uma ixhunywe kudivayisi engu-20W, khona-ke inikeza amandla angu-20W.
Amaswishi e-PoE amaswishi asekela ukunikezwa kwamandla kuzintambo zenethiwekhi. Uma kuqhathaniswa namaswishi avamile, amatheminali (afana nama-AP, amakhamera edijithali, njll.) awadingi ukuxhunywa ngentambo ukuze kunikezwe amandla, futhi athembeke kakhulu kuyo yonke inethiwekhi. IShintshanisa amasheya PoEayikwazi ukunikeza kuphela umsebenzi wokudlulisela ojwayelekileshintsha, kodwa futhi unikeze umsebenzi wokuphakelwa kwamandla komunye umkhawulo wekhebula lenethiwekhi.
Idivayisi ye-PoE engemuva idinga kuphela ikhebuli yenethiwekhi eyodwa, elondoloza isikhala futhi ingahanjiswa ngokuthanda kwayo (elula futhi elula), ukonga izindleko.
Inqobo nje uma i-PoEshintshaixhunywe ku-UPS, inganikeza amandla kuwo wonke amadivayisi ahlobene ne-POE angemuva uma ugesi uvaliwe. Abasebenzisi bangaxuba ngokuzenzakalelayo nangokuphephile okokusebenza kwangempela kanye nemishini ye-PoE kunethiwekhi, futhi lezi zisetshenziswa zingahlala kanye nezintambo ezikhona ze-Ethernet.