Chokutanga pane zvose, tinofanira kunzwisisa zvakasiyana-siyana parametersOptical modules, iyo ine marudzi matatu makuru (central wavelength, kureba kwekufambisa, chiyero chekufambisa), uye kusiyana kukuru pakati peoptical modules kunoratidzwawo mune idzi pfungwa.

1.Center wavelength

Iyo unit yepakati wavelength ndeye nanometer (nm), parizvino kune matatu makuru marudzi:

1) 850nm (MM,multi-modhi, mutengo wakaderera asi chinhambwe chipfupi chekutapurirana, kazhinji chete 500m kutapurirana);

2) 1310nm (SM, single mode, kurasikirwa kukuru asi kupararira kudiki panguva yekufambisa, kunowanzo shandiswa kutapurirana mukati me40km);

3) 1550nm (SM, single-mode, kurasikirwa kwakaderera asi kupararira kukuru panguva yekutapurirana, inowanzo shandiswa kuendesa kure-kure pamusoro pe40km, uye kureba kunogona kutapurirwa zvakananga pasina relay 120km).

2. Kuendesa kure

Chinhambwe chekufambisa (transmission distance) chinoreva chinhambwe icho masaini anogona kufambiswa zvakananga pasina relay amplification. Chikamu makiromita (anonziwo makiromita, km). Optical modules kazhinji ane zvinotevera zvinotsanangurwa: multi-mode 550m, single-mode 15km, 40km, 80km uye 120km, etc. Mira.

3.Transmission rate

Muyero wekutapurirana unoreva huwandu hwemabits (bits) e data inofambiswa pasekondi, mu bps. Chiyero chekufambisa chakaderera se100M uye chakakwira se100Gbps. Pane zviyero zvina zvinowanzoshandiswa: 155Mbps, 1.25Gbps, 2.5Gbps uye 10Gbps. Mwero wekutapurirana unowanzo kudzika. Mukuwedzera, kune marudzi matatu ekumhanya kwe2Gbps, 4Gbps uye 8Gbps ye optical modules mu optical storage systems (SAN).

Mushure mekunzwisisa ari pamusoro apa matatu optical module paramita, une yekutanga kunzwisisa kweiyo optical module? Kana iwe uchida imwe nzwisiso, ngatitarisei mamwe maparamita eiyo optical module!

1.Kurasikirwa uye kupararira: Zvose zvinonyanya kukanganisa kureba kwekufambisa kwe optical module. Kazhinji, kurasikirwa kwekubatanidza kunoverengerwa pa 0.35dBm/km ye1310nm optical module, uye kurasikirwa kwekubatanidza kunoverengerwa pa 0.20dBm/km ye1550nm optical module, uye kukosha kwekuparadzira kunoverengerwa Zvakanyanya kuoma, kazhinji kutariswa chete;

2.Kurasikirwa uye chromatic dispersion: Iyi miviri miviri inonyanya kushandiswa kutsanangura kureba kwekutengesa kwechigadzirwa, optical emission ye optical modules ine wavelengths yakasiyana-siyana, kutengesa mazinga uye marefu ekufambisa Simba uye kugamuchira kunzwisisika kuchave kwakasiyana;

3.Laser category: Parizvino, anonyanya kushandiswa lasers iFP neDFB. Iyo semiconductor zvinhu uye resonator chimiro chezviviri zvakasiyana. MaDFB lasers anodhura uye anonyanya kushandiswa kune optical modules ane kutapurirana madaro anopfuura 40km; nepo FP lasers yakachipa, Inowanzo shandiswa kune optical modules ine chinhambwe chekufambisa chisingasviki 40km.

4. Optical fiber interface: SFP optical modules yose LC interfaces, GBIC optical modules ndeye SC interfaces, uye mamwe mainterfaces anosanganisira FC uye ST;

5. Upenyu hwebasa re optical module: chiyero cheunifomu yenyika yose, 7 × 24 maawa ekushanda kusina kukanganiswa kwemaawa 50,000 (akaenzana nemakore mashanu);

6. Zvakatipoteredza: Kushanda tembiricha: 0 ~ + 70 ℃; Kuchengetedza tembiricha: -45 ~ + 80 ℃; Kushanda magetsi: 3.3V; Chikamu chekushanda: TTL.

Saka zvichibva pasumo iri pamusoro peiyo optical module paramita, ngatinzwisise mutsauko uripo pakati peSFP Optical module uye SFP + Optical module.

1. Tsanangudzo yeSFP

SFP (Small form-factor pluggable) zvinoreva fomu diki-chinhu chinobatika. Iyo i pluggable module inogona kutsigira Gigabit Ethernet, SONET, Fiber Channel uye mamwe maitiro ekutaurirana uye plug muSFP port yechinja. Iyo SFP yakatarwa yakavakirwa paIEEE802.3 uye SFF-8472, iyo inogona kutsigira kumhanya kusvika ku4.25 Gbps. Nekuda kwehukuru hwayo, SFP inotsiva yaimbozivikanwa Gigabit Interface Converter (GBIC), saka inonziwo mini GBIC SFP. NokusarudzaSFP modulesine wavelengths akasiyana uye zviteshi, chiteshi chemagetsi chimwechete pachinjainogona kubatanidzwa kune zvakasiyana-siyana zvinobatanidza uye optical fibers dzakasiyana-siyana wavelengths.

2. Tsanangudzo yeSFP +

Nekuti SFP inongotsigira mwero wekutapurirana we4.25 Gbps, usingakwanise kuzadzisa zvinodiwa nevanhu zvekumhanya kwenetiweki, SFP + yakazvarwa pasi peiyi kumashure. Iyo yakanyanya kutapurirana mwero weSFP+inogona kusvika 16 Gbps. Muchokwadi, SFP + ishanduro yakagadziridzwa yeSFP. Iyo SFP + yakatarwa yakavakirwa paSFF-8431. Mumapurogiramu akawanda nhasi, SFP + modules inowanzotsigira 8 Gbit / s Fiber Channel.SFP + module yakatsiva XENPAK uye XFP modules iyo yainyanya kushandiswa mukutanga kwe10 Gigabit Ethernet nekuda kwekukura kwayo uye kushandiswa kwakakodzera, uye yava iyo. inonyanya kufarirwa optical module mu10 Gigabit Ethernet.

Mushure mekuongorora tsananguro iri pamusoro peSFP neSFP +, zvinogona kugumiswa kuti musiyano mukuru pakati peSFP neSFP + ndiyo chiyero chekufambisa. Uye nekuda kweakasiyana mareti e data, maapplication uye ekufambisa madaro akasiyana zvakare.