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    ʻIke ʻenehana POE

    Ka manawa hoʻouna: Iune-17-2021

    ʻO kaPoE kuapohe ahoʻololie kākoʻo ana i ka lako mana i ke kaula pūnaewele. Hoʻohālikelike ʻia me ka mea maʻamauhoʻololi, ʻaʻole pono e hoʻopaʻa ʻia ka mana e loaʻa ai ka mana (e like me AP, ka pahu kikohoʻe, a me nā mea ʻē aʻe).

    ʻO ka manaʻo o ka Power Over Ethernet (POE) POE (Power Over Ethernet) e pili ana i ka hoʻohana ʻana i nā kikowaena IP-based (e like me nā kelepona IP, nā wahi komo LAN uila (APs, nā kāmeʻa pūnaewele, a me nā mea ʻē aʻe) hiki ke hāʻawi i ka ʻenehana lako mana DC no ia. nā mea hana i ka wā e hoʻouna ana i nā hōʻailona ʻikepili hiki i ka ʻenehana POE ke hōʻoia i ka hana maʻamau o ka pūnaewele i kēia manawa ʻoiai e hōʻoiaʻiʻo ana i ka palekana o ke kelepona i kūkulu ʻia, e hōʻemi ana i nā kumukūʻai.

    ʻIke ʻia ʻo POE ma ke ʻano he ʻōnaehana lako mana e pili ana i ka pūnaewele wahi kūloko (POL, Power over LAN) a i ʻole Active Ethernet (Active Ethernet), i kekahi manawa i kapa ʻia ʻo Power over Ethernet no ka pōkole. ʻO kēia ka hoʻohanaʻana i nā kaula hoʻoili Ethernet maʻamau i kēia manawa no ka hoʻounaʻana i nāʻikepili a me ka mana uila i ka manawa like ʻO nā kūlana hou a me nā kiko'ī, a mālama i ka pilina me nā pūnaewele Ethernet a me nā mea hoʻohana. IEEE

    ʻO ka maʻamau 802.3af kahi kūlana hou e pili ana i ka POE o ka ʻōnaehana mana Ethernet. Hoʻohui ia i nā kūlana pili no ka hāʻawi ʻana i ka mana pololei ma o ke kelepona pūnaewele ma ke kumu o IEEE802.3. He hoʻonui ia o ka maʻamau Ethernet e kū nei a me ka maʻamau hoʻoili mana honua mua. maʻamau.

    Ua hoʻomaka ʻo IEEE e hoʻomohala i ka maʻamau ma 1999, a ʻo nā mea kūʻai komo mua loa ʻo 3Com, Intel, PowerDsine, Nortel, Mitel, a me National Semiconductor. Eia nō naʻe, ʻo nā hemahema o kēia maʻamau ke kāohi nei i ka hoʻonui ʻana o ka mākeke. A hiki i Iune 2003, ua ʻae ka IEEE i ka maʻamau 802.3af, kahi e wehewehe pono ai i ka ʻike mana a me nā pilikia hoʻomalu i ka ʻōnaehana mamao, a hoʻopili.nā mea hoʻokele, nā hoʻololi, a me nā hubs i nā kelepona IP, nā ʻōnaehana palekana, a me nā wahi komo LAN uila ma o nā uwea Ethernet. Hoʻoponoponoʻia keʻano o ka mana o nā mea hana. ʻO ka hoʻomohala ʻana o IEEE802.3af e pili ana i nā hoʻoikaika ʻana o nā loea ʻoihana he nui, kahi e hiki ai ke hoʻāʻo ʻia ka maʻamau ma nā ʻano āpau.

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