Iswishi ye-PoE iyiswishi esekela ukunikezwa kwamandla kukhebuli yenethiwekhi. Uma kuqhathaniswa namaswishi avamile, itheminali eyamukela amandla (efana ne-AP, ikhamera yedijithali, njll.) ayidingi ukuxhunywa ngentambo ukuze kunikezwe amandla, okuthembeke kakhulu kuyo yonke inethiwekhi.Namuhla,I-JHA Technologyizokwethula ubuchwepheshe kanye nezinzuzo zokushintshwa kwe-POE ngokuningiliziwe lapha.

Umehluko phakathi kokushintsha kwe-PoE namaswishi ajwayelekile

Ukushintsha kwe-PoE akukwazi ukunikeza kuphela umsebenzi wokudlulisela we-switch evamile, kodwa futhi inikeze umsebenzi wokunikezwa kwamandla komunye umkhawulo wekhebula lenethiwekhi. Isibonelo, kunekhamera yokugada yedijithali (edinga ukunikezwa kwamandla ukuze isebenze ngokujwayelekile), kodwa ayixhunyiwe kumthombo wamandla, 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 idivayisi yenethiwekhi exhunyiwe inomkhawulo wokwamukela amandla we-PoE. Uma kukhona, izonikwa amandla, uma kungenjalo, ngeke inikwe amandla futhi inikeze kuphela ukudluliswa kwedatha. Uma ingajwayelekile, izohlinzeka ngamandla 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-802.3 at, echaza ngokulandelana amandla okunikezwa kwamandla angu-15.4W kanye no-30W, kodwa ngenxa yokulahleka kwenqubo yokudlulisa, ukunikezwa kwamandla kwangempela kungu-12.95W futhi 25.5W, i-voltage elinganiselwe I-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, inikeza amandla angu-20W.Iswishi ye-PoE iyiswishi esekela ukunikezwa kwamandla kukhebula lenethiwekhi. Uma kuqhathaniswa namaswishi avamile, amatheminali (njengama-AP, amakhamera edijithali, njll.) awadingi ukuxhunywa ngentambo ukuze kunikezwe amandla, okuthembeke kakhulu kuyo yonke inethiwekhi. Ukushintsha kwe-PoE akukwazi ukunikeza kuphela umsebenzi wokudlulisela we-switch evamile, kodwa futhi inikeze umsebenzi wokunikezwa kwamandla komunye umkhawulo wekhebula lenethiwekhi. Idivayisi ye-PoE engemuva idinga kuphela ikhebuli yenethiwekhi eyodwa, elondoloza isikhala, ingahanjiswa ngokuthanda kwayo (elula futhi elula), futhi yonga izindleko.

Uma nje 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.