Isivinini semojula ye-optical SFP+ ithi: I-10G SFP+ i-transceiver optical iwukuthuthukiswa kwe-SFP (ngezinye izikhathi ibizwa ngokuthi "mini-GBIC"). I-SFP isetshenziswe kabanzi ku-Gigabit Ethernet naku-1G, 2G, naku-4G Fiber Channel. Ukuze ivumelane namazinga aphezulu edatha, i-SFP+ iklame ukuvikela kazibuthe kagesi okuthuthukisiwe nezici zokulondolozwa kwesignali kune-SFP, futhi yenze imininingwane emisha yokusebenzelana kukagesi.
Inkomba ye-interface ye-SFP optical module
1. Amandla okusebenza okukhiphayo Amandla okukhanya okukhiphayo abhekisela emandleni okukhanya okukhiphayo omthombo wokukhanya ekugcineni kokuthumela kwemojula ye-optical, iyunithi: dBm.
2. Amandla atholwe optical Amandla atholwe optical abhekisela kumandla optical atholiwe ekupheleni kokwamukela kwe-optical module, iyunithi: dBm.
3. Yamukela ukuzwela Ukwamukela ukuzwela kubhekisela emandleni okubona amancane atholiwe emojula yokubona ngezinga elithile kanye nezinga lephutha elincane, ku-dBm. Ngaphansi kwezimo ezijwayelekile, izinga eliphakeme kakhulu, ukuzwela kokwamukela kubi kakhulu, okungukuthi, ubukhulu obuncane obuncane obutholwa amandla optical, ziphakeme izidingo zedivayisi yokwamukela ye-optical module.
4. Amandla okubona agcwele, abuye aziwe ngokuthi ukugcwaliswa kwe-optical, abhekisela emandleni okubona aphezulu okokufaka lapho isilinganiso esithile sephutha elincane (10-10).～10-12) igcinwa ngezinga elithile lokudlulisela.
Kumele kuqashelwe ukuthi i-photodetector izogcwalisa i-photocurrent ngaphansi kokukhanya okunamandla. Uma lesi simo senzeka, umtshina udinga isikhathi esithile ukuze ululame. Ngalesi sikhathi, ukuzwela kokwamukela kuyehla futhi isignali eyamukelwe ingase ingahlulelwanga kahle. Idala amaphutha amancane, futhi kulula kakhulu ukulimaza umtshina owamukelayo. Lapho isetshenziswa, kufanele izame ukuvimbela ukweqa amandla ayo okubona agcwele.
Qaphela ukuthi kumamojula optical amabanga amade, njengoba isilinganiso samandla okukhanya okukhiphayo ngokuvamile makhulu kunamandla awo agcwele optical, sicela unake ubude befiber uma uyisebenzisa ukuze uqinisekise ukuthi amandla optical atholiwe afinyelela kumojula yokubona. ingaphansi kwamandla ayo okubona agcwele. Imojuli ye-optical yonakalisiwe.
Izingxenye zamamojula we-SFP optical
Ukwakheka kwemojula ye-SFP optical yile: i-laser: kufaka phakathi i-transmitter TOSA kanye nomamukeli webhodi lesifunda le-ROSA IC, futhi izesekeli zangaphandle yilezi: igobolondo, isisekelo, i-PCBA, indandatho yokudonsa, ibhande, ucezu lokuvula, ipulaki yerabha. Ukwengeza, ukuze uthole ukuhlonza okulula, Ngokuvamile, uhlobo lwepharamitha yemojuli ibonakala ngombala wendandatho yokudonsa. Isibonelo: indandatho yokudonsa emnyama inemodi eminingi, ubude begagasi bungu-850nm; okuluhlaza okwesibhakabhaka yimojula enobude begagasi obungu-1310nm; okuphuzi kuyimojula enobude begagasi obungu-1550nm; okunsomi kuyimojula enobude begagasi obungu-1490nm.
SFP, SFF kanye ne-GBIC optical module ubudlelwano
I-SFP isifinyezo se-Small Form-factor Pluggables, okungukuthi, imojula encane yephakeji exhumekeka kalula. I-SFP ingathathwa njengenguqulo ye-SFF exhunywayo. I-interface yayo kagesi ingumunwe wegolide wamaphini angu-20. Isixhumi esibonakalayo sesignali yedatha ngokuyisisekelo sifana nemojula ye-SFF. Imojula ye-SFP iphinde inikeze isixhumi esibonakalayo sokulawula i-I2C, esihambisana ne-SFP-8472 ejwayelekile yokuxilongwa kwe-optical interface. Kokubili i-SFF ne-SFP azifaki ingxenye ye-SerDes, futhi zinikeza kuphela isixhumi esibonakalayo sedatha ye-serial. I-CDR nesinxephezelo sokuhlakazwa kukagesi kubekwa ngaphandle kwemojuli, okwenza usayizi omncane kanye nokusetshenziswa kwamandla okuphansi kwenzeke. Ngenxa yomkhawulo wokukhipha ukushisa, i-SFF/SFP ingasetshenziselwa kuphela ibanga elifushane kakhulu, ibanga elifushane kanye nezicelo zebanga eliphakathi ku-2.5Gbps nangaphansi.
Amamojula we-SFP optical manje anesivinini esiphezulu se-10G, futhi amaningi asebenzisa i-LC interfaces. Ingaqondakala kalula njengenguqulo ethuthukisiwe ye-GBIC. Umthamo wamamojula we-SFP optical wehliswa ngesigamu uma kuqhathaniswa namamojula we-GBIC optical, futhi ngaphezu kokuphindwe kabili inani lamachweba lingacushwa kuphaneli efanayo. Mayelana neminye imisebenzi, okuyisisekelo semojula ye-SFP kuyafana ne-GBIC. Ngakho-ke, abanyeshintshaabakhiqizi babiza amamojula we-SFP optical miniaturized GBIC.