I-POE yokutshintsha iteknoloji kunye neenzuzo zentshayelelo

IUkutshintsha kwePoEyitshintshaexhasa unikezelo lwamandla kwintambo yenethiwekhi. Xa kuthelekiswa neqhelekileyotshintsha, i-terminal yokufumana amandla (efana ne-AP, ikhamera yedijithali, njl.) ayifuni ukuba ifakwe kwintambo yombane, kwaye ukuthembeka kwenethiwekhi yonke kuphezulu.
Umahluko phakathi kokutshintsha kwePoE kunye nokutshintsha okuqhelekileyo
PoEtshintshayahlukile kweqhelekileyotshintsha, Ukutshintsha kwePoEayinakubonelela kuphela ngomsebenzi wothumelo wesiqhelotshintsha, kodwa kwakhona unikeze umsebenzi wonikezelo lwamandla kwelinye icala lentambo yenethiwekhi. Umzekelo, kukho ikhamera yedijithali yokucupha (idinga umbane ukuze isebenze ngokuqhelekileyo), kodwa ayiqhagamshelwanga kunikezelo lwamandla, kodwa iqhagamshelwe kwindawo eqhelekileyo.tshintshangentambo yenethiwekhi. Kule meko, ikhamera ayisebenzi. Ukuba ikhamera ayiqhagamshelwanga kunikezelo lwamandla, kodwa intambo yayo yothumelo lwenethiwekhi iqhagamshelwe kwiPoE tshintsha, ikhamera inokusebenza ngokuqhelekileyo.
I-PoE yohlulwe ngokwemigangatho nengekho mgangathweni. Umgangatho uya kufumanisa ukuba isixhobo sothungelwano esiqhagamsheleneyo sinesiphelo sokufumana amandla e-PoE. Ukuba kukho, kuya kunikwa amandla, ukuba akunjalo, ayiyi kunikwa amandla kwaye ibonelele kuphela ukuhanjiswa kwedatha. Abangengabo abasemgangathweni baya kunikwa ngokuthe ngqo amandla. Ukuba eli khonkco alibonwa, isixhobo sinokutshiswa ngaphandle.
POEtshintshaiteknoloji kunye neenzuzo
Kukho imigangatho emibini yokutshintsha kwe-PoE eqhelekileyo kwimarike, i-IEEE802.3af kunye ne-802.3at, echaza ngokulandelelana amandla ombane we-15.4W kunye ne-30W, kodwa ngenxa yelahleko kwinkqubo yokuhanjiswa, ukunikezelwa kwamandla okwenene yi-12.95W. kunye ne-25.5W, i-voltage elinganisiweyo yi-DC 48v.
Xa usebenzisa iUkutshintsha kwePoEexhasa umgangatho we-IEEE802.3af, amandla esixhobo esinamandla akakwazi ukudlula i-12.95W; ngokufanayo, xa usebenzisa i-PoEtshintshayomgangatho we-IEEE802.3, amandla esixhobo esiqhutywayo akanakudlula i-25.5W.
Ngokubanzi, i-PoEtshintshaexhasa iIEEE802.3af/kwinqanaba ngaxeshanye, unikezelo lwamandla luyaguquguquka. Ngokomzekelo, ukuba iqhagamshelwe kwisixhobo se-5W, inikeza i-5W yamandla; ukuba iqhagamshelwe kwisixhobo se-20W, ke ibonelela nge-20W yamandla.
Iiswitshi ze-PoE zizitshintshi ezixhasa ukunikezelwa kwamandla kwiintambo zenethiwekhi. Xa kuthelekiswa nokutshintsha okuqhelekileyo, ii-terminals (ezifana ne-APs, iikhamera zedijithali, njl.) Akufuneki ukuba zifakwe kwi-wired ukunikezelwa kwamandla, kwaye zithembeke ngakumbi kwinethiwekhi yonke. I-PoEtshintshaayinakubonelela kuphela ngomsebenzi wothumelo wesiqhelotshintsha, kodwa kwakhona unikeze umsebenzi wonikezelo lwamandla kwelinye icala lentambo yenethiwekhi.
Isixhobo se-PoE se-back-end sidinga kuphela intambo yenethiwekhi enye, egcina indawo kwaye inokuhanjiswa ngokuthanda (ilula kwaye ilula), ukugcina iindleko.
Logama nje PoEtshintshaiqhagamshelwe kwi-UPS, inokubonelela ngamandla kuzo zonke izixhobo ezinxulumene ne-POE-ngemva xa umbane ucinyiwe. Abasebenzisi banokudibanisa ngokuzenzekelayo kwaye ngokukhuselekileyo izixhobo zokuqala kunye nezixhobo ze-PoE kwinethiwekhi, kwaye ezi zixhobo zinokuhlalisana kunye neentambo ze-Ethernet ezikhoyo.