ThePoE chinjaari achinjaiyo inotsigira magetsi kune network tambo. Zvichienzaniswa nezvakajairikachinja, iyo magetsi inogamuchira terminal (yakadai se AP, digital kamera, nezvimwewo) haifaniri kuve newaya kuitira magetsi, uye kuvimbika kwetiweki yose yakakwirira.
Overview yePower Over Ethernet (POE) POE (Power Over Ethernet) inoreva kushandiswa kweIP-based terminals (senge IP nhare, isina waya LAN yekupinda nzvimbo (APs, network kamera, nezvimwewo) inogona kupa DC magetsi emagetsi tekinoroji kune vakadaro. zvishandiso paunenge uchitumira masaini edatha Iyo tekinoroji yePOE inogona kuve nechokwadi chekushanda kwakajairika kwetiweki iripo uku ichivimbisa kuchengetedzwa kweiyo iripo yakarongeka cabling, kuderedza mutengo.
POE inozivikanwawo sesimba rekupa simba rakavakirwa panharaunda nharaunda network (POL, Simba pamusoro peLAN) kana Active Ethernet (Active Ethernet), dzimwe nguva inonziwo Simba pamusoro peEthernet kwenguva pfupi. Uku ndiko kushandiswa kweiyo iripo standard Ethernet transmission cables kuendesa data uye magetsi emagetsi panguva imwechete Iyo yazvino zviyero uye zvakatemwa, uye kuchengetedza kuenderana nearipo Ethernet masisitimu nevashandisi. IEEE
Iyo 802.3af chiyero chiyero chitsva chakavakirwa paPOE yeEthernet magetsi system. Iyo inowedzera yakabatana zviyero zveyakananga magetsi magetsi kuburikidza netiweki tambo pahwaro hweIEEE802.3. Iyo yekuwedzera yeiyo iripo Ethernet chiyero uye yekutanga yepasirese simba rekugovera chiyero. standard.
IEEE yakatanga kuvandudza mwero muna 1999, uye vatengesi vekutanga kutora chikamu vaive 3Com, Intel, PowerDsine, Nortel, Mitel, uye National Semiconductor. Nekudaro, izvo zvikanganiso zveiyi mwero zvave kurambidza kuwedzera kwemusika. Kusvika muna Chikumi 2003, iyo IEEE yakabvumidza iyo 802.3af chiyero, icho chinotsanangura zvakajeka kuona kwesimba uye kutonga nyaya dziri kure, uye inobatanidza.routers, switch, uye hubs kune IP mafoni, kuchengetedza masisitimu, uye isina waya LAN yekuwana nzvimbo kuburikidza neEthernet tambo. Iyo nzira yekupa magetsi yemidziyo inodzorwa. Kuvandudzwa kweIEEE802.3af kunosanganisira kuedza kwenyanzvi dzakawanda dzekambani, izvo zvinobvumirawo mwero kuti uedzwe mumativi ese.
