Ukunikezwa kwamandla kwe-POE kufinyelelwa ngentambo yenethiwekhi, futhi intambo yenethiwekhi yakhiwe ngamapheya amane amapheya asontekile (8 core wire), ngakho izintambo eziyisishiyagalombili eziyinhloko kukhebula yenethiwekhi yi-PoE.shintshaukuhlinzeka ngedatha nemidiya yokudlulisa amandla kudivayisi eyamukelayo. Njengamanje, amaswishi e-PoE ahlinzeka ngamandla okudlulisela ahambisanayo e-DC kumadivayisi e-End atholayo ngokusebenzisa izindlela zokuphakela amandla ze-PoE ezintathu: Imodi A (i-end-SPAN end crossover), imodi B (Mid-Span middle crossover) kanye namapheya angu-4.
• Imodi yokunikeza amandla i-PoE
Imodi A iyi-span-span. Kule modi, ukushintsha kwe-PoE kunikeza amandla kudivayisi Yokuphela eyamukelayo ngezintambo ezi-1, 2, 3, nezi-6, futhi iphinde idlulisele idatha. U-1 no-2 amatheminali avumayo, futhi u-3 no-6 amatheminali anegethivu.
• Imodi ye-B PoE yokunikeza amandla
Imodi B iyimodi ye-Mid-Span. Kule modi, i-PoEshintshainikeza amandla kudivayisi eyamukelayo ngezintambo ezi-4, 5, 7, nezi-8. Uma isetshenziswa ku-10BASE-T kanye ne-100BASE-T Ethernet, imigqa engu-4, 5, 7, 8 izohambisa amandla kuphela, ngeke yenze ukudluliswa kwedatha, ngakho-ke izinyawo ezine zibizwa nangokuthi izinyawo ezingenalutho. Lapho 4, 5 njenge-electrode ephozithivu, 7, 8 njenge-electrode eyinegethivu.
• Imodi yokunikeza amandla ye-PoE yamapheya angu-4
Kule modi, i-PoEshintshaizonikeza amandla kudivayisi eyamukelayo kuyo yonke imigqa, lapho u-1, 2, 4, no-5 kuyitheminali ephozithivu, futhi u-3, 6, 7, no-8 kungamatheminali anegethivu.
Kumele kuqashelwe ukuthi imodi yokunikezwa kwamandla ka-PoE inqunywa idivayisi yokunikeza amandla, kanye ne-PoEshintshakanye ne-PoE power supply (injector yamandla) ingasetshenziswa njengedivaysi yokuphakela amandla ukuze kuqhutshekwe nokudlulisa amandla kanye nokudlulisa idatha kudivayisi eyamukelayo. Njengomshini wokuphakela amandla, i-PoEshintshangokuvamile isebenzisa imodi A ekunikezeni amandla. Ngokuvamile, i-PoE injector isetshenziswa njengethuluzi eliphakathi ukuxhuma i-PoE engajwayelekileshintshakanye nedivayisi eyamukelayo. Ingasekela kuphela imodi yokuphakelwa kwamandla ye-PoE kumodi B.
Ibanga lokunikezwa kwamandla ka-PoE: Ngenxa yokuthi amasiginali wamandla nenethiwekhi athinteka kalula ukumelana namandla lapho edluliswa kukhebula lenethiwekhi, okuholela ekuncipheni kwesignali noma ukunikezwa kwamandla okungazinzile, ibanga lokudlulisela lekhebula lenethiwekhi lilinganiselwe, futhi ibanga eliphezulu lokudlulisela lingakwazi kuphela. kufika ku-100 m. Ukunikezwa kwamandla kwe-PoE kwenziwa ngekhebula lenethiwekhi, ngakho-ke ibanga layo lokudlulisela lithintwa ikhebula lenethiwekhi, futhi ibanga eliphakeme lokudlulisela lingamamitha ayi-100. Kodwa-ke, uma i-PoE extender isetshenziswa, uhla lokuphakela amandla kwe-PoE lunganwetshwa lufike kubukhulu obungamamitha ayi-1219.
Imodi yokuphakelwa kwamandla ye-PoE yethulwa cishe kokuqukethwe okungenhla, njengalokhushintshaimikhiqizo yochungechunge eshiwo ngenhla, iyimikhiqizo yokuxhumana ethandwayo e-Shenzhen HDV Phoelectron Technology LTD., njenge: Ethernetshintsha, Isiteshi seFibershintsha, Isiteshi se-Ethernet Fibershintsha, njll., amaswishi angenhla angasetshenziswa ezimweni ezihlukahlukene, ukunikeza ukukhetha okwengeziwe kubasebenzisi abanezidingo ezahlukene, siyakwamukela ukuqonda, sizohlinzeka ngesevisi yekhwalithi engcono kakhulu.
