Ko te PoE he hangarau e whakarato ana i te hiko me te tuku raraunga ma nga taura whatunga.Kotahi anake te taura whatunga e hiahiatia ana hei hono atu ki tetahi tohu kamera PoE, me te kore e hiahiatia he waea hiko taapiri.
Ko te taputapu PSE te taputapu e tuku hiko ana ki te taputapu kiritaki Ethernet, ko ia hoki te kaiwhakahaere o te mana POE katoa mo te mahi Ethernet.Ko te taputapu PD ko te pikaunga PSE ka whiwhi mana, ara, te taputapu kiritaki o te punaha POE, penei i te waea IP, te kamera haumaru whatunga, te AP, te kaiawhina mamati whaiaro, te riihi waea pūkoro ranei me te maha atu o nga taputapu Ethernet (he pono, ahakoa Ka taea e te taputapu he iti ake i te 13W te mana mai i te turanga RJ45).Ka whakatauhia e te tokorua nga hononga korero i runga i te paerewa IEEE 802.3af e pa ana ki te mana hononga, te momo taputapu, te taumata kohi hiko, me etahi atu waahanga o te PD taputapu mutunga whiwhi, ka whakamahia tenei hei turanga mo te PSE ki te hiko i te PD ma te Ethernet.
I te wa e whiriwhiri ana koe i tetahi huringa PoE, me whai whakaaro nga mea e whai ake nei:
1. Mana tauranga kotahi
Whakapumautia te mana tauranga kotahi ka tutuki te mana teitei o tetahi IPC e piri ana ki te whakawhiti, kaore ranei.Mēnā āe, tīpakohia ngā whakaritenga whakakā i runga i te kaha mōrahi o te IPC.
Ko te kaha o te PoE IPC i nga wa katoa kaore e nui ake i te 10W, no reira me tautoko noa te whakawhiti i te 802.3af.Engari ki te 20W te tono mana o etahi miihini paoro tere tere, ki te kaha ake ranei te kaha o etahi AP uru ahokore, me tautoko te whakawhiti i te 802.3at.
E whai ake nei nga mana whakaputa e pa ana ki enei hangarau e rua:
2. Te mana nui o te whakawhiti
nga whakaritenga, me te whakaaro ki te kaha o te IPC katoa i te wa o te hoahoa.Ko te nui o te mana whakaputanga o te whakawhiti me nui ake i te tapeke o te mana katoa o te IPC.
3. Momo tuku hiko
Kaore he take ki te whakaaro ki te whakamahi i te taura whatunga matua e waru mo te tuku.
Mena he taura whatunga matua e wha, he mea tika kia whakaū mena kei te tautoko te pana ki te whakarato hiko Class A kaore ranei.
Hei poto, i te wa e whiriwhiri ana, ka taea e koe te whakaaro ki nga painga me nga utu o nga momo whiringa PoE.
Wā tuku: Hune-05-2021