IShintshanisa amasheya PoEiyiswishi esekela ukunikezwa kwamandla kukhebuli yenethiwekhi.Uma kuqhathaniswa neswishi evamile, itheminali yokwamukela amandla (njenge-AP, ikhamera yedijithali, njll.) ayidingi ukuxhunywa ngentambo ukuze kunikezwe amandla, futhi ukwethembeka kwayo yonke inethiwekhi kuphakeme.
Umehluko phakathi kokushintsha kwe-PoE namaswishi ajwayelekile
Iswishi ye-PoE ihlukile ekushintsheni okuvamile, ukushintshwa kwe-PoE akukwazi nje ukunikeza umsebenzi wokudlulisela weswishi evamile, kodwa futhi kunikeze umsebenzi wokuphakela amandla komunye umkhawulo wentambo yenethiwekhi.Isibonelo, kunekhamera yokugada yedijithali (idinga ukunikezwa kwamandla ukuze isebenza ngokujwayelekile), kodwa ayixhumekile kumandla kagesi, kodwa ixhunywe kusishintshi esivamile ngentambo yenethiwekhi.Kulokhu, ikhamera ayisebenzi.Uma ikhamera ingaxhumekile kumandla kagesi, kodwa ikhebula layo lenethiwekhi yokudlulisela lixhunywe kusishintshi se-PoE, 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.
POE shintsha ubuchwepheshe 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.
Uma usebenzisa inkinobho ye-PoE esekela izinga le-IEEE802.3af, amandla edivayisi enikwe amandla awakwazi ukudlula u-12.95W;ngokufanayo, uma usebenzisa inkinobho ye-PoE yezinga le-IEEE802.3at, amandla edivayisi enikwe amandla awakwazi ukudlula ama-25.5W.
Ngokuvamile, ukushintsha kwe-PoE okusekela i-IEEE802.3af/ngokwezinga 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 ajwayelekile, 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 weswishi evamile, kodwa futhi inikeze umsebenzi wokuphakela amandla 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 iswishi ye-PoE ixhumeke ku-UPS, inganikeza amandla kuwo wonke amadivayisi ahlobene ne-POE asemuva lapho ugesi ucishiwe.Abasebenzisi bangaxuba ngokuzenzakalelayo nangokuphephile okokusebenza kwangempela kanye nemishini ye-PoE kunethiwekhi, futhi lezi zisetshenziswa zingahlala kanye nezintambo ezikhona ze-Ethernet.