1.1 Basic function module
Thekuwala CHIKWANGWANItransceiver imaphatikizapo ma modules atatu ofunikira: photoelectric media conversion chip, optical signal interface (optical transceiver integrated module) ndi mawonekedwe a magetsi (RJ45). Ngati ili ndi ntchito zoyang'anira maukonde, imaphatikizanso gawo lowongolera zidziwitso zamaneti.
fiber optic transceiver ndi Ethernet transmission media conversion unit yomwe imasinthanitsa ma siginecha amagetsi opindika mtunda waufupi ndi ma siginecha akutali atali. Imatchedwanso photoelectric converter (Fiber Converter) m'malo ambiri. Chogulitsacho chimagwiritsidwa ntchito m'malo enieni amtaneti pomwe chingwe cha Efaneti sichingathe kubisala komansokuwala CHIKWANGWANIiyenera kugwiritsidwa ntchito kukulitsa mtunda wotumizira, ndipo nthawi zambiri imayikidwa munjira yofikira pa network ya Broadband metropolitan area; nthawi yomweyo, zimathandiza kulumikiza mtunda wotsiriza wakuwala CHIKWANGWANImzere wopita kumzinda waukulu Intaneti ndi maukonde akunja nawonso adathandizira kwambiri.
M'mabizinesi ena akuluakulu, kuwala kwa fiber kumagwiritsidwa ntchito ngati njira yotumizira kuti akhazikitse netiweki ya msana pakumanga maukonde, pomwe njira yopatsira mkati mwa LAN nthawi zambiri imakhala waya wamkuwa. Momwe mungazindikire kugwirizana pakati pa LAN ndi makuwala CHIKWANGWANInetwork network? Izi zimafuna kutembenuka pakati pa madoko osiyanasiyana, mizere yosiyana, ndi ulusi wosiyanasiyana wa kuwala ndikutsimikizira mtundu wa ulalo. The zikamera wa kuwala CHIKWANGWANI transceivers otembenuka magetsi ndi kuwala chizindikiro cha awiri okhotakhota kwa wina ndi mzake, kuonetsetsa kufala yosalala mapaketi deta pakati pa maukonde awiri, ndipo nthawi yomweyo, izo amawonjezera kufala mtunda malire a maukonde kuchokera 100 mamita. Wawaya wamkuwa wopitilira makilomita 100 (Ulusi wamtundu umodzi).
1.2 Makhalidwe oyambira a fiber optic transceivers
1. Zowonekera kwathunthu ku protocol network.
2. Perekani kufala kwa deta yotsika kwambiri.
3. Thandizani kutentha kwakukulu kogwira ntchito.
4. Gwiritsani ntchito chipangizo chodzipatulira cha ASIC kuti muzindikire kutumiza kwachangu kwa data. Programmable ASIC imayang'ana ntchito zingapo pa chip imodzi, ndipo ili ndi maubwino amapangidwe osavuta, odalirika kwambiri, komanso kugwiritsa ntchito mphamvu pang'ono, zomwe zingathandize zida kupeza magwiridwe antchito apamwamba komanso kutsika mtengo.
5. Zida zoyendetsera maukonde zingapereke chidziwitso cha maukonde, kukweza, lipoti la chikhalidwe, lipoti lachilendo ndi ntchito zolamulira, ndipo zingapereke chipika chathunthu cha ntchito ndi chipika cha alamu.
6. Zida zamtundu wa rack zimatha kupereka ntchito yotentha yotentha kuti ikhale yosavuta kukonza ndi kukonzanso kosasokonezeka.
7. Thandizani mtunda wathunthu wotumizira (0～120km).
8. Zida zambiri zimagwiritsa ntchito mapangidwe a magetsi a 1 + 1, amathandizira magetsi opangira magetsi, ndipo amazindikira chitetezo cha magetsi ndi kusintha kwachangu.
1.3Gulu la fiber optic transceivers
Pali mitundu yambiri ya ma transceivers a fiber optic, ndipo mitundu yawo imasintha molingana ndi njira zosiyanasiyana zamagulu.
Malingana ndi chikhalidwe cha ulusi, ukhoza kugawidwa mu multi-mode fiber transceiver ndi single-mode fiber transceiver. Chifukwa cha ulusi wosiyanasiyana wa kuwala womwe umagwiritsidwa ntchito, mtunda wotumizira wa transceiver ndi wosiyana. Kutalika kwapang'onopang'ono kwa ma transceivers amitundu yambiri kuli pakati pa 2 makilomita ndi 5 makilomita, pomwe kufalikira kwa ma transceivers amtundu umodzi kumatha kuchoka pa 20 makilomita mpaka 120 makilomita;
Malinga ndi mawonekedwe ofunikira a optical fiber, amatha kugawidwa kukhala transceiver ya fiber optical fiber transceiver: deta yotumizidwa ndi kulandiridwa imatumizidwa pamtundu umodzi wa kuwala; transceiver yapawiri-fiber optical fiber: zomwe zalandilidwa ndikutumizidwa zimapatsirana pawiri ya ulusi wamaso.
Malingana ndi mlingo / mlingo wogwirira ntchito, ukhoza kugawidwa kukhala 10M imodzi, 100M fiber optic transceivers, 10 / 100M adaptive fiber optic transceivers ndi 1000M fiber optic transceivers. Malinga ndi kapangidwe kake, imatha kugawidwa kukhala ma transceivers apakompyuta (oyima pawokha) ndi ma transceivers okhala ndi fiber optic. Desktop optical fiber transceiver ndi yoyenera kwa wogwiritsa ntchito m'modzi, monga kukumana ndi cholumikizira chimodzi mukhonde. Ma rack-mounted (modular) fiber optic transceivers ndi oyenera kuphatikiza ogwiritsa ntchito angapo. Mwachitsanzo, chipinda chapakati cha makompyuta cha anthu ammudzi chiyenera kukumana ndi zosintha zonse za m'deralo.
z malingana ndi kasamalidwe ka netiweki, imatha kugawidwa mumtundu wa kasamalidwe kamtundu wa fiber fiber transceiver ndi mtundu wosagwiritsa ntchito makina opangira ma fiber transceiver.
Malinga ndi mtundu wa kasamalidwe, zitha kugawidwa m'magulu osagwirizana ndi maukonde a Efaneti fiber optic transceivers: pulagi ndi sewero, ikani njira yogwirira ntchito ya doko lamagetsi kudzera pa switch ya hardware. Mtundu wa kasamalidwe ka netiweki Ethernet fiber optic transceiver: kuthandizira kasamalidwe ka netiweki
Malingana ndi mtundu wa magetsi, amatha kugawidwa mu ma transceivers opangidwa ndi fiber optic: opangira magetsi opangira magetsi ndi mphamvu zonyamulira; ma transceivers akunja a fiber fiber optic: magetsi osinthira akunja amagwiritsidwa ntchito kwambiri pazida za anthu wamba. Ubwino wakale ndikuti imatha kuthandizira voteji yamagetsi opitilira muyeso, kuzindikira kukhazikika kwamagetsi, kusefa ndi chitetezo chamagetsi a zida, ndikuchepetsa kulephera kwakunja komwe kumachitika chifukwa cholumikizana ndi makina; ubwino wa chomaliza ndi chakuti zipangizo ndi zazing'ono kukula ndi zotsika mtengo.
Kugawidwa ndi machitidwe ogwirira ntchito, mawonekedwe amtundu wa duplex (full duplex) amatanthauza kuti pamene kutumiza ndi kulandira deta kumagawidwa ndi mizere iwiri yopatsirana yosiyana, mbali zonse zoyankhulirana zimatha kutumiza ndi kulandira nthawi imodzi. Kupatsirana kwamtunduwu Njirayi ndi yodzaza ndi duplex, ndipo mawonekedwe athunthu-duplex safunikira kusintha njira, kotero palibe kuchedwa kwa nthawi chifukwa cha kusintha kwa ntchito;
Half duplex imatanthawuza kugwiritsa ntchito chingwe cholumikizira chomwechi polandila ndi kutumiza. Ngakhale kuti deta imatha kutumizidwa mbali ziwiri, mbali zonse zoyankhulana sizingathe kutumiza ndi kulandira deta nthawi imodzi. Njira yopatsirayi ndi theka-duplex.
Pamene njira ya theka-duplex ilandilidwa, chotumizira ndi cholandila kumapeto kulikonse kwa njira yolumikizirana zimasamutsidwa kupita ku chingwe cholumikizira kudzera pakusintha kolandila / kutumiza kuti musinthe njira. Chifukwa chake, kuchedwa kwa nthawi kudzachitika.