Mbere ya byose, dukeneye gusobanukirwa ibipimo bitandukanye byaModire, muri byo hari ubwoko butatu bwingenzi (uburebure bwumurongo wo hagati, intera yoherejwe, igipimo cyo kohereza), kandi itandukaniro nyamukuru riri hagati ya optique naryo rigaragarira muri izi ngingo.

1.Uburebure bwumurongo

Igice cyuburebure bwikigo ni nanometero (nm), kuri ubu hari ubwoko butatu bwingenzi:

1) 850nm (MM,uburyo bwinshi, igiciro gito ariko intera yohereza, muri rusange 500m yohereza);

2) 1310nm (SM, uburyo bumwe, igihombo kinini ariko gutatanya mugihe cyo kohereza, mubisanzwe bikoreshwa mugukwirakwiza muri 40km);

3) 1550nm (SM, uburyo bumwe, igihombo gito ariko gutatana kwinshi mugihe cyo kohereza, mubisanzwe bikoreshwa mugukwirakwiza intera ndende hejuru ya 40km, kandi kure cyane birashobora kwanduzwa bitarenze 120km).

2. Intera yoherejwe

Intera yoherejwe yerekana intera ibimenyetso bya optique bishobora koherezwa muburyo butaziguye.Igice ni kilometero (nanone cyitwa kilometero, km).Module nziza isanzwe ifite ibisobanuro bikurikira: uburyo bwinshi 550m, uburyo bumwe 15km, 40km, 80km na 120km, nibindi Tegereza.

3. Igipimo cyo kohereza

Igipimo cyo kohereza bivuga umubare wa bits (bits) yamakuru yatanzwe kumasegonda, muri bps.Igipimo cyo kohereza kiri hasi ya 100M kandi hejuru ya 100Gbps.Hariho ibiciro bine bikunze gukoreshwa: 155Mbps, 1.25Gbps, 2.5Gbps na 10Gbps.Igipimo cyo kwanduza muri rusange kiri hasi.Mubyongeyeho, hari ubwoko 3 bwumuvuduko wa 2Gbps, 4Gbps na 8Gbps kuri modul optique muri sisitemu yo kubika optique (SAN).

Nyuma yo gusobanukirwa ibipimo bitatu bya optique byavuzwe haruguru, ufite ubushishozi bwibanze bwa module optique?Niba ushaka ibindi bisobanuro, reka turebe ibindi bipimo bya optique module!

1. Gutakaza no gutatanya: Byombi bigira ingaruka cyane cyane ku ntera yo kohereza ya optique.Mubisanzwe, igihombo cyo guhuza kibarwa kuri 0.35dBm / km kuri module ya optique ya 1310nm, naho igihombo gihuza kibarwa kuri 0.20dBm / km kuri module ya optique ya 1550nm, kandi agaciro ko gutatanya kubarwa Biragoye cyane, mubisanzwe kubisobanuro gusa;

2.Gutakaza no gutakaza chromatic: Ibi bipimo byombi bikoreshwa cyane cyane mugusobanura intera ihererekanya ryibicuruzwa, kohereza optique ya modul optique ifite uburebure butandukanye bwumuraba, igipimo cyogukwirakwiza nintera yohereza Imbaraga no kwakira sensibilité bizaba bitandukanye;

3.Icyiciro cya Laser: Kugeza ubu, laseri ikoreshwa cyane ni FP na DFB.Ibikoresho bya semiconductor nibikoresho bya resonator byombi biratandukanye.Lazeri ya DFB irazimvye kandi ikoreshwa cyane muburyo bwa optique hamwe nintera yoherejwe irenze 40km;mugihe laseri ya FP ihendutse, Mubisanzwe ikoreshwa muburyo bwa optique hamwe nintera yohereza munsi ya 40km.

4. Optique ya fibre optique: Modire ya optique ya moderi yose ni LC ya interineti, moderi ya optique ya GBIC ni SC yose, naho izindi interineti zirimo FC na ST;

5. Ubuzima bwa serivisi ya module optique: amahame mpuzamahanga amwe, amasaha 7 × 24 yumurimo udahagarara kumasaha 50.000 (ahwanye nimyaka 5);

6. Ibidukikije: Ubushyuhe bwakazi: 0 ~ + 70 ℃;Ubushyuhe bwo kubika: -45 ~ + 80 ℃;Umuvuduko w'akazi: 3.3V;Urwego rw'akazi: TTL.

Dufatiye rero ku ntangiriro yavuzwe haruguru kuri optique ya module optique, reka twumve itandukaniro riri hagati ya SFP optique module na SFP + optique.

1.Ibisobanuro bya SFP

SFP (Ifishi ntoya-ishobora gucomeka) isobanura ibintu bito bifatika.Nibikoresho byacomeka bishobora gushyigikira Gigabit Ethernet, SONET, Umuyoboro wa Fibre nibindi bipimo byitumanaho hanyuma ugacomeka ku cyambu cya SFP cya switch.Ibisobanuro bya SFP bishingiye kuri IEEE802.3 na SFF-8472, bishobora gushyigikira umuvuduko ugera kuri 4.25 Gbps.Bitewe nubunini bwacyo, SFP isimbuza Gigabit Interface Converter isanzwe (GBIC), bityo nanone yitwa mini GBIC SFP.GuhitamoModire ya SFPhamwe nuburebure butandukanye hamwe nibyambu, icyambu kimwe cyamashanyarazi kuri switch kirashobora guhuzwa guhuza utandukanye hamwe na fibre optique yuburebure butandukanye.

2.Ibisobanuro bya SFP +

Kuberako SFP ishyigikira gusa umuvuduko wa 4.25 Gbps, idashobora kuzuza ibyifuzo byabantu byiyongera kumuvuduko wurubuga, SFP + yavutse muriki gice.Igipimo ntarengwa cyo kohereza cyaSFP +irashobora kugera kuri 16 Gbps.Mubyukuri, SFP + ni verisiyo yongerewe ya SFP.Ibisobanuro bya SFP + bishingiye kuri SFF-8431.Mubisabwa byinshi muri iki gihe, modul ya SFP + isanzwe ishyigikira umuyoboro wa Fibre 8 Gbit / s. Module ya SFP + yasimbuye modul ya XENPAK na XFP yakoreshwaga cyane mu ntangiriro ya 10 ya Gigabit Ethernet kubera ubunini bwayo kandi ikoreshwa neza, kandi yabaye i icyamamare cya optique muri 10 ya Gigabit Ethernet.

Nyuma yo gusesengura ibisobanuro byavuzwe haruguru bya SFP na SFP +, dushobora kwemeza ko itandukaniro nyamukuru riri hagati ya SFP na SFP + ari igipimo cyo kohereza.Kandi kubera ibipimo bitandukanye byamakuru, porogaramu nintera yoherejwe nabyo biratandukanye.