ʻO ka Fiber to the Home (FTTH) kahi ʻōnaehana e hoʻokomo i nā fiber optics mai kahi kikowaena pololei i loko o nā hale pākahi e like me nā hale noho a me nā hale noho. Ua hele lōʻihi ka hoʻolaha ʻana o FTTH ma mua o ka hoʻohana ʻana o nā mea hoʻohana i nā fiber optics ma kahi o ke keleawe no ke komo ʻana i ka pūnaewele broadband.
ʻElua mau ala maʻamau no ka hoʻolaha ʻana i kahi pūnaewele FTTH wikiwiki:nā pūnaewele ʻike hana(AON) a me ka passivenā pūnaewele ʻike maka(PON).
No laila nā pūnaewele AON a me PON: he aha ka ʻokoʻa?
He aha ka pūnaewele AON?
He ʻano hoʻolālā pūnaewele kiko-a-kiko kahi i loaʻa ai i kēlā me kēia mea kākau inoa kāna laina fiber optic ponoʻī i hoʻopau ʻia ma kahi mea hoʻohui optical. Hoʻopuni kahi pūnaewele AON i nā mea hoʻololi uila e like me nā routers a i ʻole nā mea hoʻohui hoʻololi e hoʻokele i ka hoʻolaha hōʻailona a me ka hōʻailona kuhikuhi i nā mea kūʻai aku kikoʻī.
Hoʻā a pio nā kuapo ma nā ʻano like ʻole e kuhikuhi i nā hōʻailona e komo mai ana a puka aku i nā wahi kūpono. ʻO ka hilinaʻi ʻana o ka pūnaewele AON i ka ʻenehana Ethernet e maʻalahi ai ka launa pū ʻana ma waena o nā mea hoʻolako. Hiki i nā mea kākau inoa ke koho i nā lako e hāʻawi ana i nā helu ʻikepili kūpono a hoʻonui i ka piʻi ʻana o kā lākou mau pono me ka ʻole o ka hoʻonohonoho hou ʻana i ka pūnaewele. Eia nō naʻe, koi nā pūnaewele AON ma ka liʻiliʻi hoʻokahi mea hoʻohui kuapo no kēlā me kēia mea kākau inoa.
He aha ka pūnaewele PON?
ʻAʻole e like me nā pūnaewele AON, ʻo PON kahi hoʻolālā pūnaewele point-to-multipoint e hoʻohana ana i nā mea hoʻokaʻawale passive e hoʻokaʻawale a hōʻiliʻili i nā hōʻailona optical. ʻAe nā mea hoʻokaʻawale fiber i kahi pūnaewele PON e lawelawe i nā mea kākau inoa he nui i loko o hoʻokahi fiber me ka ʻole o ka pono e hoʻolaha i nā fibers kaʻawale ma waena o ke kikowaena a me ka mea hoʻohana hope.
E like me ka inoa e hōʻike nei, ʻaʻole hoʻokomo nā pūnaewele PON i nā lako hoʻololi motorized a me nā puʻupuʻu fiber kaʻana like no nā ʻāpana o ka pūnaewele. Pono wale nā lako hana ma ke kumu a me ka loaʻa ʻana o ka hōʻailona.
Ma kahi pūnaewele PON maʻamau, ʻo ka mea hoʻokaʻawale PLC ke kikowaena. Hoʻohui nā piula fiber optic i nā hōʻailona optical he nui i loko o hoʻokahi puka, a i ʻole lawe nā piula fiber optic i hoʻokahi hoʻokomo optical a hāʻawi iā ia i nā puka pākahi he nui. He bidirectional kēia mau piula no PON. I mea e maopopo ai, hiki ke hoʻouna ʻia nā hōʻailona fiber optic i lalo mai ke keʻena kikowaena e hoʻolaha i nā mea kākau inoa āpau. Hiki ke hoʻouna ʻia nā hōʻailona mai nā mea kākau inoa i luna a hui pū ʻia i loko o hoʻokahi fiber e kamaʻilio me ke keʻena kikowaena.
Nā Pūnaewele AON vs PON: Nā ʻokoʻa a me nā koho
ʻO nā pūnaewele PON a me AON ke kumu o ka ʻōnaehana FTTH fiber optic, e ʻae ana i nā kānaka a me nā ʻoihana e komo i ka Pūnaewele. Ma mua o ke koho ʻana i kahi PON a i ʻole AON, he mea nui e hoʻomaopopo i nā ʻokoʻa ma waena o lākou.
Ka Hoʻolaha Hōʻailona
I ka wā e pili ana i nā pūnaewele AON a me PON, ʻo ka ʻokoʻa nui ma waena o lāua ke ʻano o ka hoʻolaha ʻana o ka hōʻailona optical i kēlā me kēia mea kūʻai aku ma kahi ʻōnaehana FTTH. Ma kahi ʻōnaehana AON, loaʻa i nā mea kākau inoa nā pūʻolo fiber i hoʻolaʻa ʻia, e hiki ai iā lākou ke komo i ka bandwidth like, ma mua o kahi i kaʻana like ʻia. Ma kahi pūnaewele PON, kaʻana like nā mea kākau inoa i kahi ʻāpana o ka pūʻolo fiber o ka pūnaewele ma ka PON. ʻO ka hopena, ʻike paha ka poʻe e hoʻohana ana i ka PON he lohi kā lākou ʻōnaehana no ka mea kaʻana like nā mea hoʻohana āpau i ka bandwidth like. Inā loaʻa kahi pilikia i loko o kahi ʻōnaehana PON, hiki ke paʻakikī ke loaʻa ke kumu o ka pilikia.
Nā kumukūʻai
ʻO ke kumukūʻai nui loa e hoʻomau nei i loko o kahi pūnaewele ʻo ia ke kumukūʻai o ka hoʻohana ʻana i nā lako a me ka mālama ʻana. Hoʻohana ʻo PON i nā mea hana passive e pono ai ka mālama liʻiliʻi a me ka ʻole o ka lako mana ma mua o kahi pūnaewele AON, he pūnaewele hana. No laila, ʻoi aku ka liʻiliʻi o ke kumukūʻai o ka PON ma mua o AON.
Ka Mamao Uhi a me nā Noi
Hiki iā AON ke uhi i kahi mamao a hiki i 90 kilomita, ʻoiai ʻo PON ka mea maʻamau i kaupalena ʻia e nā laina kaula fiber optic a hiki i 20 kilomita ka lōʻihi. ʻO ke ʻano kēia, pono nā mea hoʻohana PON e kokoke loa aku i ka hōʻailona kumu.
Eia kekahi, inā pili ia me kahi noi a lawelawe paha, pono e noʻonoʻo ʻia kekahi mau mea ʻē aʻe. No ka laʻana, inā e hoʻolaha ʻia nā lawelawe RF a me nā wikiō, a laila ʻo PON wale nō ka hopena kūpono. Eia nō naʻe, inā pili nā lawelawe āpau i ka Internet Protocol, a laila kūpono paha ʻo PON a i ʻole AON. Inā pili nā mamao lōʻihi a hiki ke pilikia ka hāʻawi ʻana i ka mana a me ka hoʻoluʻu ʻana i nā ʻāpana hana ma ke kahua, a laila ʻo PON paha ke koho maikaʻi loa. A i ʻole, inā he kālepa ka mea kūʻai aku i manaʻo ʻia a i ʻole pili ka papahana i nā ʻāpana noho he nui, a laila kūpono paha kahi pūnaewele AON.
Nā Pūnaewele AON vs. PON: ʻO wai ka FTTH āu e makemake ai?
I ke koho ʻana ma waena o PON a i ʻole AON, he mea nui e noʻonoʻo i nā lawelawe e hāʻawi ʻia ma luna o ka pūnaewele, ka topology pūnaewele holoʻokoʻa, a me nā mea kūʻai mua. Ua hoʻolaha ka nui o nā mea lawelawe i ka hui pū ʻana o nā pūnaewele ʻelua i nā kūlana like ʻole. Eia nō naʻe, i ka wā e hoʻomau nei ka pono no ka interoperability pūnaewele a me ka scalability, ke ʻae nei nā ʻano hana pūnaewele i kekahi fiber e hoʻohana like ʻia i nā noi PON a i ʻole AON e hoʻokō i nā koi o nā pono e hiki mai ana.
Ka manawa hoʻouna: ʻOkakopa-24-2024