Ukutshintsha kwePoE sisitshixo esixhasa unikezelo lwamandla kwintambo yenethiwekhi. Xa kuthelekiswa nokutshintsha okuqhelekileyo, i-terminal yokufumana amandla (efana ne-AP, ikhamera yedijithali, njl.) ayifuni ukuba ifakwe kwiintambo zombane, ethembeke ngakumbi kwinethiwekhi yonke.Namhlanje,Itekhnoloji yeJHAizakwazisa itekhnoloji kunye nezibonelelo zokutshintsha kwe-POE ngokweenkcukacha apha.

Umahluko phakathi kokutshintsha kwePoE kunye nokutshintsha okuqhelekileyo

Ukutshintsha kwe-PoE akukwazi ukubonelela kuphela umsebenzi wokuhanjiswa kokutshintsha okuqhelekileyo, kodwa kwakhona ukubonelela ngomsebenzi wokubonelela ngombane kwelinye icala lentambo yenethiwekhi. Ngokomzekelo, kukho ikhamera yokujonga idijithali (efuna ukunikezelwa kwamandla ukuze isebenze ngokuqhelekileyo), kodwa ayixhunyiwe kumthombo wamandla, kodwa iqhagamshelwe kwisitshixo esiqhelekileyo ngentambo yenethiwekhi. Kule meko, ikhamera ayisebenzi. Ukuba ikhamera ayixhunyiwe kumandla ombane, kodwa intambo yayo yenethiwekhi yokudlulisa ixhunyiwe kwi-PoE switch, ikhamera inokusebenza ngokuqhelekileyo.

I-PoE yohlulwe ngokwemigangatho nengekho mgangathweni. Umgangatho uya kufumanisa ukuba isixhobo sothungelwano esiqhagamshelweyo sinesiphelo sokufumana amandla e-PoE. Ukuba kukho, kuya kunikwa amandla, ukuba akunjalo, ayiyi kunikwa amandla kwaye ibonelele kuphela ukuhanjiswa kwedatha. Ukuba ayingomgangatho, iya kunika amandla ngokuthe ngqo. Ukuba le khonkco ayibonwa, isixhobo sinokutshiswa ngaphandle.

I-POE yokutshintsha iteknoloji kunye neenzuzo

Kukho imigangatho emibini yokutshintsha kwe-PoE eqhelekileyo kwimarike, i-IEEE802.3af kunye ne-802.3 kuyo, ngokulandelelana ichaza amandla ombane we-15.4W kunye ne-30W, kodwa ngenxa yelahleko kwinkqubo yothumelo, ukunikezelwa kwamandla okwenene yi-12.95W kunye I-25.5W, i-voltage elinganisiweyo Yi-DC 48v. Xa usebenzisa i-PoE switch exhasa umgangatho we-IEEE802.3af, amandla esixhobo esinamandla akakwazi ukudlula i-12.95W; ngokufanayo, xa usebenzisa utshintsho lwe-PoE lomgangatho we-IEEE802.3at, amandla esixhobo esinamandla akanakudlula i-25.5W.

Ngokuqhelekileyo, utshintsho lwe-PoE oluxhasa i-IEEE802.3af / kumgangatho ngexesha elifanayo, ukunikezelwa kwamandla kuyaguquguquka. Ngokomzekelo, ukuba iqhagamshelwe kwisixhobo se-5W, inikeza i-5W yamandla; ukuba iqhagamshelwe kwisixhobo se-20W, ibonelela nge-20W yamandla. I-PoE switch is switch exhasa unikezelo lwamandla kwintambo yenethiwekhi. Xa kuthelekiswa nokutshintsha okuqhelekileyo, ii-terminals (ezifana ne-APs, iikhamera zedijithali, njl.) Akufuneki ukuba zifakwe kwi-wire unikezelo lwamandla, oluthembeke ngakumbi kwinethiwekhi yonke. Ukutshintsha kwe-PoE akukwazi ukubonelela kuphela umsebenzi wokuhanjiswa kokutshintsha okuqhelekileyo, kodwa kwakhona ukubonelela ngomsebenzi wokubonelela ngombane kwelinye icala lentambo yenethiwekhi. Isixhobo se-PoE se-back-end sidinga kuphela intambo yenethiwekhi enye, egcina indawo, inokushukunyiswa ngokuthanda (ilula kwaye ilula), kwaye igcina iindleko.

Ngethuba nje i-PoE switch ixhunywe kwi-UPS, inokubonelela ngamandla kuzo zonke izixhobo ezinxulumene ne-POE-emva xa umbane ucinyiwe. Abasebenzisi banokudibanisa ngokuzenzekelayo kwaye ngokukhuselekileyo izixhobo zokuqala kunye nezixhobo ze-PoE kwinethiwekhi, kwaye ezi zixhobo zinokuhlalisana kunye neentambo ze-Ethernet ezikhoyo.