Zolemba pa Fiber Transceiver Design!

Kukula kofulumira kwa maukonde a fiber optic, kuphatikiza mautumiki a data omwe amayesedwa mu voliyumu ya data kapena bandwidth, akuwonetsa kuti ukadaulo wa fiber optic transmission ndi ndipo upitiliza kukhala gawo lofunikira pamakina am'tsogolo.Okonza ma netiweki amakhala omasuka kwambiri ndi mayankho a fiber optic, popeza kugwiritsa ntchito ma fiber optic solutions kumathandizira mamangidwe osinthika a maukonde ndi maubwino ena monga kukhazikika kwa EMI (electromagnetic interference) ndi chitetezo cha data.Ma transceivers a fiber optic amagwira ntchito yofunika kwambiri pakulumikizana kwa fiber optic uku.Popanga transceiver ya fiber optic, pali zinthu zitatu zofunika kuziganizira: chilengedwe, mawonekedwe amagetsi, ndi magwiridwe antchito.
Kodi fiber optic transceiver ndi chiyani?

Fiber optic transceiver ndi gawo lodziyimira pawokha lomwe limatumiza ndikulandila ma sign.Nthawi zambiri, imalumikiza chipangizo chomwe chimapereka malo amodzi kapena angapo a transceiver module, monga rauta kapena khadi yolumikizira netiweki.Wopatsirana amatenga zolowetsa zamagetsi ndikuzisintha kukhala zowunikira kuchokera ku laser diode kapena LED.Kuwala kochokera ku transmitter kumaphatikizidwa mu ulusi kudzera pa cholumikizira ndikufalikira kudzera pa chipangizo cha fiber optic.Kuwala kochokera kumapeto kwa ulusiwo kumalumikizidwa ndi cholandirira, pomwe chowunikira chimatembenuza kuwala kukhala chizindikiro chamagetsi, chomwe chimayikidwa moyenerera kuti chigwiritsidwe ntchito ndi chipangizocho.
Malingaliro Opanga
Maulalo a Fiber optic amathanso kuthana ndi kuchuluka kwa data pamtunda wautali poyerekeza ndi njira zama waya zamkuwa, zomwe zapangitsa kuti ma transceivers a fiber optic azigwiritsa ntchito kwambiri.Popanga ma transceivers a fiber optic, zinthu zotsatirazi ziyenera kuganiziridwa.
Mkhalidwe wa chilengedwe
Vuto limodzi limabwera chifukwa cha nyengo yakunja, makamaka nyengo yotentha kwambiri pamalo okwera kapena owoneka bwino.Zigawozi ziyenera kugwira ntchito pansi pazikhalidwe za chilengedwe komanso pa kutentha kwakukulu.Chodetsa nkhawa chachiwiri cha chilengedwe chokhudzana ndi kapangidwe ka fiber optic transceiver ndi chilengedwe cha mamaboard chomwe chimaphatikizapo kugwiritsa ntchito mphamvu zamakina ndi mawonekedwe amafuta.
Ubwino waukulu wa ma transceivers a fiber optic ndikuti mphamvu zawo zamagetsi ndizochepa.Komabe, kugwiritsa ntchito mphamvu pang'ono kumeneku sikutanthauza kwenikweni kuti mapangidwe amafuta amatha kunyalanyazidwa pophatikiza masinthidwe a khamu.Mpweya wokwanira kapena mpweya wokwanira uyenera kuphatikizidwa kuti uthandize kutaya mphamvu zotentha zomwe zimatulutsidwa mu module.Chimodzi mwazofunikirazi chimakwaniritsidwa ndi khola lokhazikika la SFP loyikidwa pa bolodi la amayi, lomwe limagwiranso ntchito ngati njira yopangira mphamvu zamagetsi.Kutentha kwamilandu komwe kunanenedwa ndi Digital Monitor Interface (DMI) pamene mainframe ikugwira ntchito pa kutentha kwake kwakukulu ndiko kuyesa kwakukulu kwa mphamvu ya dongosolo lonse la matenthedwe.
Zinthu zamagetsi
Kwenikweni, fiber optic transceiver ndi chipangizo chamagetsi.Kuti musunge magwiridwe antchito opanda cholakwika a data yomwe imadutsa mu module, magetsi opangira ma module ayenera kukhala okhazikika komanso opanda phokoso.Chofunika kwambiri, magetsi oyendetsa transceiver ayenera kusefedwa bwino.Zosefera zodziwika bwino zafotokozedwa mu Multi-Source Agreement (MSA), yomwe idatsogolera mapangidwe oyamba a ma transceivers awa.Mmodzi mwamapangidwe otere mu SFF-8431 akuwonetsedwa pansipa.
Optical katundu
Kuchita kwa kuwala kumayesedwa ndi zolakwika pang'ono kapena BER.Vuto pakupanga transceiver ya kuwala ndikuti magawo a kuwala a transmitter ndi wolandila ayenera kuwongolera kuti kuchepetsedwa kulikonse kwa chizindikiro cha kuwala pamene chikuyenda pansi pa fiber sikupangitsa kuti BER isagwire bwino.Gawo lalikulu la chidwi ndi BER ya ulalo wathunthu.Ndiko kuti, poyambira ulalo ndiye gwero la chizindikiro chamagetsi chomwe chimayendetsa cholumikizira, ndipo pamapeto pake, chizindikiro chamagetsi chimalandiridwa ndi wolandila ndikutanthauziridwa ndi mayendedwe omwe ali mumsasawo.Kwa maulalo olankhulirana omwe amagwiritsa ntchito ma transceivers owonera, cholinga chachikulu ndikutsimikizira magwiridwe antchito a BER pamtunda wolumikizirana wosiyanasiyana ndikuwonetsetsa kuti pali kulumikizana kwakukulu ndi ma transceivers a chipani chachitatu kuchokera kwa ogulitsa osiyanasiyana.