Ibanga eliphephile lokudlulisa amandla e-POE lingamamitha angu-100, futhi kuyanconywa ukusebenzisa intambo yenethiwekhi yethusi ye-Cat 5e. Kungenzeka ukudlulisa amandla e-DC ngentambo evamile ye-Ethernet ibanga elide, kungani-ke ibanga lokudlulisela lilinganiselwe kumamitha ayi-100? Okulandelayo, sizolandela i-JHA TECH ukuze sifunde kabanzi mayelana nebanga eliphephile lokudlulisela ugesi we-POE.

Iqiniso liwukuthi ibanga eliphezulu lokudlulisa le-POE switch lincike kakhulu ebangeni lokudluliswa kwedatha. Uma ibanga lokudlulisela lingaphezu kwamamitha ayi-100, ukulibaziseka kwedatha nokulahlekelwa kwephakethe kungase kwenzeke. Ngakho-ke, ibanga lokudlulisela akufanele lidlule amamitha angu-100 ohlelweni lwangempela lokwakha.

Kodwa-ke, sekuvele kukhona amaswishi e-POE anebanga lokudlulisela elifinyelela kumamitha angama-250, elinganelisa ukunikezwa kwamandla okude. Kukholakala futhi ukuthi ngokuthuthukiswa kobuchwepheshe bokuhlinzeka ngogesi we-POE esikhathini esizayo esiseduze, ibanga lokudlulisela lizonwetshwa kakhulu.

Izinga le-POE IEEE 802.3af lidinga ukuthi amandla okukhiphayo wembobo yokukhipha ye-PSE abe ngu-15.4W noma 15.5W, futhi amandla atholiwe edivayisi ye-PD ngemva kwamamitha angu-100 okudlulisela akumele abe ngaphansi kuka-12.95W. Ngokusho kwenani lamanje elijwayelekile elingu-802.3af elingu-350ma, ukumelana kwekhebuli yenethiwekhi yamamitha angu-100 kufanele kube Yi-(15.4-12.95W)/350ma = 7 ohms noma (15.5-12.95)/350ma = 7.29 ohms.

Ikhebuli yenethiwekhi evamile ihlangabezana ngokwemvelo nale mfuneko. Izinga lokunikezwa kwamandla kwe-IEEE 802.3af POE ngokwalo likalwa ngekhebuli yenethiwekhi evamile. Isizathu kuphela senkinga yezidingo zekhebula lenethiwekhi ye-POE ukuthi izintambo eziningi zenethiwekhi emakethe ziyizintambo zenethiwekhi ezingajwayelekile futhi azikhiqizwa ngokuhambisana ngokuqinile nezidingo zezintambo zenethiwekhi ezijwayelekile. Izinto zekhebula zenethiwekhi ezingajwayelekile emakethe ikakhulukazi zifaka insimbi egqoke ithusi, i-aluminium egqoke ithusi, insimbi ene-copper-clad, njll. Lezi zintambo zinamanani amakhulu okumelana futhi azifanele ukunikezwa kwamandla ka-POE. Ukunikezwa kwamandla kwe-POE kufanele kusebenzise intambo yenethiwekhi eyenziwe ngethusi elingenawo umoya-mpilo, okungukuthi, intambo yenethiwekhi evamile.

Ubuchwepheshe bokunikezwa kwamandla we-POE bunezidingo eziphezulu zezintambo. Kunconywa ukuthi ekuqapheni amaphrojekthi, akufanele neze wonge izindleko ezintanjeni.