Unikezelo lwamandla lwe-POE luphunyezwa ngentambo yothungelwano, kwaye intambo yothungelwano iqulunqwe ngazibini ezine ezijijekileyo (ii-8 core wires), ngoko ke iingcingo ezisibhozo ezingundoqo kwintambo yomnatha yiPoE.tshintshaukubonelela ngedatha kunye nemidiya yokuhambisa amandla kwisixhobo esifumanayo. Okwangoku, ii-switch switches ze-PoE zibonelela ngokugqithiswa kwamandla e-DC ahambelanayo kwi-End yokufumana izixhobo ngokusebenzisa iindlela ezintathu zokubonelela umbane we-PoE: I-Mode A (i-end-SPAN end crossover), i-mode B (Mid-Span middle crossover) kunye ne-4-pair.
• Imowudi ye-PoE yonikezelo lwamandla
Imowudi A yisiphelo sexesha. Kule modi, i-PoE yokutshintsha inika amandla kwisixhobo sokuGqibela esifumanayo nge-1, 2, 3, kunye ne-6 iingcingo, kwaye ihambisa idatha. U-1 no-2 zii-positive terminals, kwaye u-3 no-6 zii-negative terminals.
• Imo ye-B PoE imo yonikezelo lwamandla
Imowudi B yimowudi ye-Mid-Span. Kule ndlela, i-PoEtshintshainika amandla kwisixhobo esifumanayo nge-4, 5, 7, kunye ne-8 iingcingo. Xa isetyenziswe kwi-10BASE-T kunye ne-100BASE-T Ethernet, i-4, 5, 7, i-8 imigca iya kuqhuba ukuhanjiswa kwamandla kuphela, ayiyi kuqhuba ukuhanjiswa kwedatha, ngoko ke iinyawo ezine zibizwa ngokuba yinyawo ezingasebenzi. Apho u-4, 5 njenge-electrode e-positive, 7, 8 njenge-electrode engeyiyo.
• Imowudi yonikezelo lwamandla ye-PoE enezimbini ezi-4
Kule ndlela, i-PoEtshintshaiya kunika amandla kwisixhobo esifumanayo kuyo yonke imigca, apho i-1, 2, 4, kunye ne-5 ziitheminali ezivumayo, kunye no-3, 6, 7, kunye no-8 ziitheminali ezithabathayo.
Kufuneka kuqatshelwe ukuba imodi yokunikezelwa kwamandla e-PoE inqunywe yisixhobo sokubonelela ngombane, kunye ne-PoEtshintshakunye nonikezelo lombane lwe-PoE (i-injector yamandla) lunokusetyenziswa njengesixhobo sokubonelela umbane ukwenza umbane kunye nokuhanjiswa kwedatha kwisixhobo esifumanayo. Njengesixhobo sokubonelela ngombane, i-PoEtshintshangokuqhelekileyo isebenzisa imo A yonikezelo lwamandla. Ngokuqhelekileyo, i-injector ye-PoE isetyenziswa njengesixhobo esiphakathi ukudibanisa i-PoE engeyiyo eqhelekileyotshintshakunye nesixhobo esamkelayo. Inokuxhasa kuphela imo yePoE yonikezelo lwamandla kwimowudi B.
Umgama wonikezelo lwamandla e-PoE: Ngenxa yokuba amandla kunye neempawu zenethiwekhi zichatshazelwa ngokulula kukuchasana kunye nomthamo xa uhanjiswa kwintambo yenethiwekhi, okukhokelela ekunciphiseni umqondiso okanye unikezelo lombane olungazinzanga, umgama wothumelo wentambo yenethiwekhi ulinganiselwe, kwaye umgama omkhulu wokuhambisa unokuphela. ukufikelela kwi-100 yeemitha. Unikezelo lwamandla e-PoE lufezekiswa ngentambo yothungelwano, ngoko ke umgama wokuhanjiswa kwawo uchaphazeleka yintambo yenethiwekhi, kwaye umgama omkhulu wothumelo ukwimitha ezili-100. Nangona kunjalo, ukuba i-PoE extender isetyenzisiwe, uluhlu lonikezelo lwamandla lwe-PoE lunokwandiswa ukuya kubuninzi beemitha ezili-1219.
Imowudi yonikezelo lwamandla ye-PoE yaziswa ngokurhabaxa kumxholo ongasentla, njengetshintshaiimveliso series ezikhankanywe ngasentla, zithandwa iimveliso zonxibelelwano e Shenzhen HDV Phoelectron Technology LTD., ezifana: Ethernettshintsha, Umjelo weFayibhatshintsha, Ethernet Fiber Channeltshintsha, njl., utshintsho olungentla lunokusetyenziswa kwiimeko ezahlukeneyo, ukubonelela ukhetho oluninzi kubasebenzisi abaneemfuno ezahlukeneyo, bamkelekile ukuba baqonde, siya kubonelela ngeyona nkonzo isemgangathweni.
