I-SFP Module iqukethe idivayisi ye-optical, isekethe esebenzayo kanye ne-optical interface. Umshini obonayo uqukethe izingxenye ezidlulisayo nezokwamukela.
Ingxenye yokudlulisela yilezi: okokufaka kwenani elithile lekhodi yezimpawu zikagesi, ngokucubungula i-chip yomshayeli wangaphakathi, ukushayela i-semiconductor laser (LD) ye-light emitting diode (LED) ukuthumela isignali ye-optical yokukhanya kwekhodi ehambisanayo, ukukhanya kwangaphakathi inikezwe ngesifunda sokulawula ukunikezwa kwamandla okuzenzakalelayo. Amandla wesignali ye-optical okukhiphayo ahlala ezinzile.
Ingxenye eyamukelayo yile: imojula yokufaka isignali ye-optical yezinga elithile lekhodi iguqulwa ibe isignali kagesi ngokusebenzisa i-optical discovery diode. Ngemva kwe-preamplifer, isignali yokuphumayo yezinga lebhithi elihambisanayo izinga le-PECL. Uma amandla okusebenza okufaka engaphansi kwenani elithile, isignali ye-alamu iyakhiqizwa.
Amapharamitha kanye nencazelo yamamojula optical
Amamojula we-Optical ayenayo yonke imingcele ebalulekile ye-optical technical. Kodwa-ke, kumamojula we-GBIC ne-SFP hot-plug SFP, udinga ukunaka lezi zinhlaka ezintathu ezilandelayo.
Ngokusekelwe ku-nanometer(nm), kunezinhlobo ezintathu eziyinhloko okwamanje.
850nm (MM, imodi eminingi, izindleko eziphansi kodwa ibanga elifushane lokudlulisela, ngokuvamile lingama-500M kuphela).
I-1310nm (i-SM, Imodi Eyodwa, ukulahleka okuncane kokudlulisela, ukuhlakazeka okukhulu, okuvame ukusetshenziselwa ukudluliselwa kwebanga elide ngaphezu kuka-40KM, akukho ukudluliselwa okungadlulisa ngokuqondile u-120KM).
I-1550nm (i-SM, Imodi Eyodwa, ukulahleka okuncane kokudlulisela, ukuhlakazeka okukhulu, okuvame ukusetshenziselwa ukudluliselwa kwebanga elide ngaphezu kuka-40KM, akukho ukudlala kabusha okudlulisa ngokuqondile u-120KM).
Isilinganiso Sokudlulisa
Izinombolo zamabhithi (BPS) zedatha edluliswa ngomzuzwana.
Okwamanje. Kunamamojula amane e-SFP asetshenziswa kakhulu. 155Mbps, 1.25Gbps, 2.5Gbps, 10Gbps nokunye. Izinga lokudlulisa livamise ukuhambisana nokubuyela emuva. Ngakho-ke, i-155M SFP Module ibizwa nangokuthi i-FE (100Mbit/s) SFP Module, kanye ne-1.25G SFP Module nayo ibizwa ngokuthi i-GE(Gigabit) optical module.
Lena yi-SFP esetshenziswa kakhulu emishinini yokudlulisa amehlo. Ngaphezu kwalokho, amazinga ayo okudlulisela ku-fiber optic storage systems (SAN) yi-2Gbps, 4Gbps, kanye ne-8Gbps.
Ibanga lokudlulisela
Isignali yokubona ayidingi ukudluliselwa ebangeni lapho ingadluliselwa khona ngokuqondile. Ngamakhilomitha (okubizwa nangokuthi amakhilomitha, KM). Ukucaciswa kwamamojula we-SFP kungokulandelayo: I-Multi-Mode 550M, Imodi Eyodwa 15KM, 40KM, 80KM, kanye ne-120KM, njll.