I kēia mau lā, i nā papahana kamaʻilio pūnaewele o kēia manawa, nā transceivers optical,nā mea lawe uila uila, a me nā modem optical hiki ke ʻōlelo ʻia e hoʻohana nui ʻia a mahalo nui ʻia e nā limahana palekana. No laila, ʻike anei ʻoe i ka ʻokoʻa ma waena o kēia ʻekolu Clear?
ʻO ka modem Optical kahi ʻano mea like me ka baseband MODEM (modem digital). ʻO ka ʻokoʻa mai ka baseband MODEM ʻo ia ka pili ʻana i kahi laina fiber optical i hoʻolaʻa ʻia, ʻo ia ka hōʻailona optical.
Hoʻohana ʻia ia no ka hoʻololi ʻana i ka hōʻailona photoelectric a me ka protocol interface ma ka ʻāpana ākea ākea, a me ke komo ʻanarouterʻo ia ka ʻike pūnaewele ākea ākea. Hoʻohana ka transceiver photoelectric i ka hoʻololi ʻana o ka hōʻailona photoelectric ma ka pūnaewele wahi kūloko, akā ʻo ka hoʻololi ʻana i ka hōʻailona wale nō, me ka ʻole o ka hoʻololi ʻana o ka protocol interface. ua kau ʻia nā kaula wili. I mea e akaka ai ka modem optical, photoelectric transceiver. Pono mākou e hoʻolauna i ke kaiapuni i hoʻohana ʻia ai lākou.
Modem Optical, i ʻike ʻia ʻo ka transceiver optical port hoʻokahi, kahi huahana i hoʻolālā ʻia no nā kaiapuni mea hoʻohana kūikawā. Hoʻohana ʻo ia i ʻelua o nā fiber optical no ka E1 hoʻokahi a i ʻole V. 35 hoʻokahi a i ʻole 10BaseT hoʻokahi kiko-i-point optical transmission terminal. E like me nā mea hoʻouna relay o ka pūnaewele kūloko, ua kūpono kēia mea hana no nā mea hoʻoili uila fiber optical o ka base station a me nā mea laina hoʻolimalima. No nā transceivers optical multi-port, ua kapa ʻia lākou "optic transceivers". No nā transceivers optical port hoʻokahi, hoʻohana mau ʻia lākou ma ka ʻaoʻao mea hoʻohana. Hana like lākou me ka baseband MODEM maʻamau no WAN hoʻolaʻa laina (circuit) pūnaewele. "Optical modem" a me "Optical Network Unit".
He mau huahana wale nō nā transceivers no ka kamaʻilio ʻikepili. ʻOkoʻa nā huahana transceiver optical maoli, pono no ka hoʻouna ʻana i ke kīwī kelepona, kekahi no ka hoʻouna kelepona, pono no ka hoʻokele ʻenehana, a hoʻohui pū kekahi i ka "leo, data, kiʻi" a me nā lawelawe ʻē aʻe e komo ai i One.
Hoʻomaopopo ka transceiver fiber optical i ka hoʻololi ʻana o ka hōʻailona ma waena o ka fiber mode-mode a me ka multi-mode fiber a me nā hui wili i Ethernet. ʻO ka transceiver fiber optical kahi ʻāpana hoʻololi hoʻololi media Ethernet e hoʻololi ana i nā hōʻailona uila wili lōʻihi lōʻihi. Hoʻohana pinepine ʻia nā transceivers optical i nā kaiapuni pūnaewele maoli kahi hiki ʻole ke uhi ʻia nā kaula Ethernet a pono e hoʻohana ʻia nā fiber optical e hoʻonui i ka mamao o ka hoʻouna ʻana; i ka manawa like, ke kōkua nei lākou e hoʻohui i ka mile hope loa o nā laina fiber optical i nā ʻoihana metropolitan area (no ka ʻenehana Ethernet) a me nā papa o waho. Ua hana nui ka Internet.
E like me ka wikiwiki, hiki ke hoʻokaʻawale ʻia ka transceiver fiber optical i hoʻokahi 10M, 100M optical fiber transceiver,10/100M adaptive optical fiber transceivera me 1000M ka mea lawe fiber fiber. Hana nā transceiver 10M a me 100M ma ka papa kino, a ʻo nā huahana transceiver e hana ana ma kēia papa i mua i ka ʻikepili ma kahi iki. Loaʻa i kēia ʻano hoʻouna ʻana i nā mea maikaʻi o ka wikiwiki wikiwiki, kiʻekiʻe ka transparency rate, haʻahaʻa haʻahaʻa, a me nā mea ʻē aʻe, ʻoi aku ka maikaʻi o ka hoʻohālikelike a me ke kūpaʻa, a kūpono no ka hoʻohana ʻana i nā loulou paʻa.
Hana ka 10/100M optical fiber transceiver ma ka papa loulou data. Ma kēia papa, hoʻohana ka transceiver fiber optical i kahi mīkini hale kūʻai-a-mua no ka heluhelu ʻana i kona kumu kumu helu MAC, kahi MAC helu wahi, a me kahi wahi MAC helu wahi no kēlā me kēia ʻeke i loaʻa. ʻIkepili, hoʻouna ʻia ka ʻeke ʻikepili ma hope o ka pau ʻana o ka nānā ʻana i ka redundancy cyclic CRC. ʻO ka mea mua, hiki iā ia ke pale i kekahi mau papa hewa mai ka laha ʻana i ka pūnaewele a noho i nā kumuwaiwai waiwai nui. I ka manawa like, hiki iā ia ke pale i ka nalowale ʻana o ka ʻikepili ma muli o ka hoʻopili pūnaewele.
E like me ka hoʻolālā, hiki ke hoʻokaʻawale ʻia i ka ʻano o ka optical fiber transceiver a me ka rack type optical fiber transceiver. He kūpono ka mea hoʻohana hoʻokahi, e like me ka hui ʻana i ka uplink o hoʻokahihoʻololima ke alahele. He kūpono nā transceivers fiber optic i hoʻopaʻa ʻia no ka hui ʻana o nā mea hoʻohana lehulehu.
Wahi a ka fiber, hiki ke hoʻokaʻawale ʻia i ka multi-mode fiber transceiver a me ka single-mode fiber transceiver. Ma muli o ka ʻokoʻa o nā fiber optical i hoʻohana ʻia, ʻokoʻa ka mamao o ka lawe ʻana o ka transceiver. ʻO ka mamao hoʻouna maʻamau o kahi transceiver multi-mode aia ma waena o 2 mau kilomita a me 5 mau kilomita, aʻo kahi transceiver hoʻokahi-mode hiki ke uhi i kahi ākea mai 20 mau kilomita a 120 mau kilomita. Pono e kuhikuhi ʻia ma muli o ka ʻokoʻa o ka mamao o ka hoʻouna ʻana, ʻokoʻa ka mana hoʻouna, ka loaʻa ʻana o ka naʻau a me ka lōʻihi o ka hawewe o ka fiber optic transceiver ponoʻī. ʻO ka mana hoʻouna o kahi transceiver fiber optical 5km ma waena o -20 a -14db, a ʻo ka naʻau o ka loaʻa ʻana he -30db, me ka hoʻohana ʻana i ka nalu o 1310nm; ʻOiai ʻo ka mana hoʻouna o kahi transceiver fiber optical he 120 km ma waena o -5 a 0dB, a ʻo ka naʻau o ka loaʻa ʻana he －38dB, me ka hoʻohana ʻana i ka hawewe 1550nm.
Ma muli o ka helu o nā fibers optical, hiki ke hoʻokaʻawale ʻia i hoʻokahi-fiber optical transceiver amea hoʻolele ʻike maka ʻelua-fiber. ʻO ka fiber hoʻokahi ka ʻike i ka loaʻa ʻana o ka ʻikepili a me ka hoʻouna ʻana ma kahi fiber optical. Hoʻohana ʻia kēia ʻano huahana i ka ʻenehana o ka hawewe mahele multiplexing, a ʻo ka nui o nā nalu i hoʻohana ʻia ʻo 1310nm a me 1550nm. Ma muli o ka hoʻohana ʻana o ka nalu hawewe mahele multiplexing, nā huahana transceiver hoʻokahi i loaʻa ke ʻano o ka attenuation hōʻailona nui. I kēia manawa, ʻo ka hapa nui o nā transceivers fiber optic ma ka mākeke he mau huahana pālua-fiber, he ʻano makua a paʻa.
ʻAe, ʻo ka mea i luna nei ka hoʻolauna e pili ana i ka ʻokoʻa ma waena o ka transceiver optical, ka transceiver fiber optical a me ka modem optical. Manaʻo wau hiki ke kōkua iā ʻoe!