Emkhakheni wokuqapha ukuphepha, amadivayisi amaningi enethiwekhi asetshenziswayo njengamanje asekela ukunikezwa kwamandla kwe-PoE. Ekwakhiweni kokuqapha kwenethiwekhi, ukuze kuncishiswe izindleko zezintambo futhi kwenze kube lula futhi kusheshe, izinkampani eziningi zobunjiniyela zizocabangela ukusebenzisa amandla e-PoE, okungukuthi, ukusebenzisa ukushintshwa kwe-PoE kumakhamera okuqapha amandla. Ngakho-ke, mangaki amadivaysi amandla okushintshwa kwezimboni ze-PoE?

1. I-PoE ishintsha izinga lokunikezwa kwamandla

Ukuze ubone ukuthi mangaki amakhamera anganikwa amandla yi-switch ye-PoE ngesikhathi esifanayo, izici ezimbili kufanele zicatshangelwe: izinga lokunikezwa kwamandla kwe-switch ye-PoE kanye nokunikezwa kwamandla okuphelele kwe-switch ye-PoE. Ukunikezwa kwamandla kweswishi ye-PoE kungaqondwa njengokunikezwa kwamandla kwembobo eyodwa yeswishi ye-PoE. Kunamazinga amabili okushintshwa kwe-PoE adumile emakethe, IEEE802.3af kanye ne-IEEE802.3at. Izinga le-IEEE802.3af lichaza ukunikezwa kwamandla okungu-15.4W, futhi izinga le-IEEE802.3at lichaza ukunikezwa kwamandla okungafika ku-30W. Ngenxa yamazinga ahlukene okunikezwa kwamandla, ukunikezwa kwamandla kwembobo eyodwa nakho kuhlukile. Isibonelo, amandla ekhamera angu-9W, futhi ukushintsha kwe-PoE okujwayelekile kungasetshenziswa; Uma amandla ekhamera engu-20W, udinga ukusebenzisa iswishi ye-PoE ejwayelekile; uma amandla ekhamera engaphezulu kuka-30W, udinga ukusebenzisa imojula yokunikezela amandla ye-PoE ukuze unikeze amandla.

Ngokuvamile, ukushintsha kwe-PoE okusekela kokubili i-af kanye namazinga okunikezwa kwamandla kunokunikezwa kwamandla okuzijwayeza. Isibonelo, uma ixhunywe kudivayisi ye-5W, inikeza amandla angu-5W; uma ixhunywe kudivayisi engu-20W, khona-ke inikeza amandla angu-20W.

2. Amandla aphelele amaswishi e-PoE yezimboni

Amandla aphelele we-switch ye-PoE yezimboni iyinkomba ebaluleke kakhulu, ehlobene ngokuqondile nokuthi mangaki amakhamera angalethwa. Ukuthatha iswishi ye-PoE enezimbobo ezingama-24 nesiphakeli samandla esingu-400W, amandla aphelele weswishi ye-PoE cishe angu-370W ngemva kokukhipha ukulahlekelwa.

Ngaphansi kwezinga le-IEEE802.3af, inganikeza izimbobo ezingama-24 (370/15.4=24), okungukuthi, inganikeza amandla kumakhamera angama-24 ngesikhathi esifanayo, okungukuthi, amandla aphelele. Kodwa uma ibalwa ngokwezinga le-IEEE802.3at lokunikezwa kwamandla okukhulu kwembobo eyodwa okungu-30W, ngesikhathi esifanayo, inganikeza amandla kuphela ezimbobeni eziyi-12 kakhulu (370/30=12).

Ekusetshenzisweni kwangempela, ukusetshenziswa kwamandla okuphezulu kwamakhamera ewebhu amaningi avamile kuphansi, ngokuyisisekelo aweqi ku-15W. Uma imbobo ye-PoE ngayinye igcina amandla ngokuya ngamandla amakhulu (isibonelo, ama-30W) ngalesi sikhathi, ezinye izimbobo zizosebenzisa amandla e-PoE. Akupheli, kodwa ezinye izimbobo azikwazi ukusabalalisa amandla. Isibonelo, ezinye izinguquko ze-PoE zisekela ukwabiwa kwamandla ashukumisayo, okungagwema lesi simo. Lapho uthenga iswishi ye-PoE, kuncike ekutheni iswishi iyakusekela yini ukwabiwa kwamandla aguquguqukayo, ukuze imbobo ngayinye yabe kuphela amandla asetshenziswa ngempela, ukuze ukunikezwa kwamandla kweswishi ye-PoE kusetshenziswe kahle kakhulu.

3. Ukwabelana ngolwazi lokusebenzisa amaswishi emboni ye-PoE

a. Ukusetshenziswa kwamaswishi asekela ukusatshalaliswa kwamandla ashukumisayo kungakhulisa ukusebenza kahle kokunikezwa kwamandla;
b. Okokuqala qonda ukusetshenziswa kwamandla okuphezulu kwedivayisi enikwe amandla, bese uhlukanisa amandla aphelele weswishi ye-PoE ngokusebenzisa amandla aphezulu ukuze uthole ukuthi mangaki amadivaysi eshintshwayo ye-PoE enganikezela.