Module ya SFP igizwe nibikoresho bya optique, umuzenguruko ukora hamwe na optique ya optique. Igikoresho cya optique kigizwe no kohereza no kwakira ibice.
Igice cyohereza ni: kwinjiza igipimo runaka cyikimenyetso cyibimenyetso byamashanyarazi, binyuze mumashanyarazi yimbere yimbere, gutwara laser semiconductor laser (LD) yumucyo utanga diode (LED) kugirango wohereze kode ihwanye nigipimo cyerekana optique, optique imbere ni yatanzwe hamwe na sisitemu yo kugenzura amashanyarazi. Ibisohoka optique yerekana ibimenyetso biguma bihamye.
Igice cyakira ni: optique yerekana ibimenyetso byinjiza module yikigero runaka cyahinduwe mubimenyetso byamashanyarazi binyuze muri optique yo kumenya. Nyuma ya preamplifer, ibimenyetso bisohoka byerekana igipimo cya biti ni urwego rwa PECL. Iyo kwinjiza optique imbaraga zitari munsi yagaciro runaka, ikimenyetso cyo gutabaza kirakorwa.
Ibipimo nubusobanuro bwa optique module
Moderi ya Optical yari ifite ibipimo byingenzi bya tekiniki. Ariko, kuri GBIC na SFP bishyushye-bigizwe na SFP Modules, ugomba kwitondera ibipimo bitatu bikurikira.
Ukurikije nanometero (nm), hari ubwoko butatu bwingenzi kuri ubu.
850nm (MM, uburyo-bwinshi, igiciro gito ariko intera yohereza, muri rusange 500M gusa).
1310nm (SM, Mode imwe, igihombo gito cyohereza, gutatanya kwinshi, mubisanzwe bikoreshwa mugukwirakwiza intera ndende hejuru ya 40KM, nta relaire ishobora kohereza 120KM).
1550nm (SM, Mode imwe, igihombo gito cyohereza, gutatanya kwinshi, mubisanzwe bikoreshwa mugukwirakwiza intera ndende hejuru ya 40KM, nta gusubiramo kohereza 120KM).
Igipimo cyo kohereza
Umubare wa bits (BPS) yamakuru yatanzwe kumasegonda.
Kugeza ubu. Hano hari bine bisanzwe bikoreshwa muri SFP. 155Mbps, 1.25Gbps, 2.5Gbps, 10Gbps n'ibindi. Igipimo cyo kwimura mubisanzwe gisubira inyuma. Kubwibyo, Module ya 155M ya SFP nayo yitwa FE (100Mbit / s) SFP Module, naho Module ya 1.25G SFP nayo yitwa GE optique ya GE (Gigabit).
Nibwo SFP ikoreshwa cyane mubikoresho byohereza optique. Mubyongeyeho, igipimo cyayo cyohereza muri sisitemu yo kubika fibre optique (SAN) ni 2Gbps, 4Gbps, na 8Gbps.
Intera yoherejwe
Ibimenyetso byiza ntibikenewe koherezwa kure aho bishobora koherezwa muburyo butaziguye. Muri kilometero (nanone bita kilometero, KM). Ibisobanuro bya SFP Modules nibi bikurikira: Multi-Mode 550M, Mode-Mode 15KM, 40KM, 80KM, na 120KM, nibindi.