Lub Closer Saib ntawm OM5

Peb paub tias kom cuag ncua kev sib raug zoo ntawm kev sib txuas lus, cov tshuab fiber ntau multimode yog ib txoj kev siv nyiaj. Raws li cov chaw zov me nyuam cov ntaub ntawv tas li los ntawm kev ceev ceev thiab ntau dua kev sib txawv, lub tshuab fiber ntau multimode kuj tau hloov zuj zus tuaj, ntawm OM1, OM2 rau OM3 thiab OM4 multimode fiber. Tam sim no, OM5 los. Tsab ntawv xov xwm no yuav coj koj mus kom ze ntawm OM5.

Lus qhia txog OM5

OM5, tseem hu ua band-wide multimode fiber (WBMMF), tau pom zoo nyob rau hauv ob qho tib si Telecommunications Industry Association (TIA) thiab International Electrotechnical Commission (IEC). Nws yog tsim los txhawb cov shortwave wavelength division multiplexing (SWDM) uas yuav siv 850nm, 880nm, 910nm thiab 940nm rau hloov kev tshaj tawm.

Yam ntxwv ntawm OM5

Dab tsi ua rau OM5 txawv? Dab tsi yog cov yam ntxwv ntawm OM5? Cov nram qab no yuav ua qhov xaus.

Loj: OM5 fiber ntau laser optimized multimode fiber ntau (LOMF) ntawm 50 micron core. Yog li, OM5 cabling txhawb txhua daim ntawv thov legacy yam tsawg kawg nkaus thiab OM4, thiab yog siab tshaj thiab intermateable nrog OM3 thiab OM4 cabling.

Xim: TIA tau teev cov txiv qaub ntsuab raws li txoj kab xov tsho xim rau OM5.

Bandwidth: Qhov qhab xov ntawm OM5 yog los ntawm 850 txog 953nm thiab nws qhov kev hloov modal bandwidth tau teev nyob rau qis thiab qis tshaj wavelengths: 4700 MHz.km ntawm 850nm thiab 2470 MHz.km ntawm 953nm.

Ceev: OM5 tuaj yeem pab txhawb 40G, 100G thiab 400G Ethernet los ntawm SWDM. Thiab nws yog tsim thiab teev tias yuav tsum muaj tsawg kawg yog plaub WDM raws ntawm qhov kev tsav qis kawg ntawm 28Gbps ib txoj hauv kev los ntawm qhov rais 850-953.

Nrug: Thaum tshais chaw pib ntawm kev ceev ntawm 10 Gb / s, OM5 yuav ua tau 550 m; thaum hloov kev tshaj tawm ntawm qhov ceev ntawm 40 Gb / s, OM5 yuav ua tau li 440 m; thaum hloov xa tawm ntawm kev ceev ntawm 100 Gb / s, OM5 muaj peev xwm tuav tau 150 meters.

Ua hauj lwm txoj cai: Vim tias SWDM yuav pab 40G thiab 100G tshaj li ob hom fiber ntau, thaum siv 25GBASE-SR specifications, 100 gigabit OM5 fiber links yuav tsim tau siv 2-fiber 25 gigabit raws rau 4 yam kev sib txawv ntawm cov wavelengths. Zoo sib xws, siv 100GBASE-SR4 specifications, 400 gigabit OM5 fiber txuas yuav tsim tau siv 8-fibre 100 gigabit raws ntawm 4 txawv wavelengths.

Nqi: Raws li qhov tseeb, OM5 cabling yuav raug nqi li 50% ntau tshaj OM4.

Sib piv ntawm OM5, OM4 thiab OM3

Los ntawm kev sib piv, nws tsis yog qhov nyuaj nrhiav pom tias muaj ntau qhov sib txawv ntawm OM5, OM4 thiab OM3.

• OM5 yog tsawg kawg yog 4 x ntau tshaj li OM4 dhau ib lub 'meter' ntawm fiber ntau thiab nqa 5.7X ntau tshaj li OM3 dua ib lub 'meter' fiber.

• Cov xim ntawm OM5 fiber ntau yog xim ntsuab, thaum txheem OM3 thiab OM4 fiber ntau yog aqua.

• Qhov zoo tshaj plaws modal bandwidth rau OM5 yog 4700 MHz.km ntawm 850nm thiab 2470 MHz.km ntawm 953nm. Thaum OM4 muaj 4700 MHz.km ntawm 850nm thiab OM3 yog 2000 MHz.km ntawm 850nm.

• Rau 100 kis ceev, OM5 siv 2-fiber 25 gigabit raws ntawm 4 txawv wavelengths, thaum OM4 thiab OM3 yuav tsum siv 8-fibers ntawm 100GBASE-SR4.

• OM5 txhawb kis nrug ntawm 440 meters rau 40G SWDM system thiab 150 meters rau 100G SWDM system. Thaum OM4 tsuas tuaj yeem ua tau 350 meters rau 40G SWDM thiab 100 meters rau 100G SWDM; OM3 tuaj yeem pab txhawb 40G SWDM nrog nrug ntawm 240 meters thiab 100G SWDM nrog 75 meters.

Xaus

Raws li ib hom tshiab ntawm fiber ntau multimode, OM5 fiber ntau muaj qhov kev kov yeej hauv qee yam. Txawm li cas los xij, nws tsis yog nrov heev ntawm kev ua lag luam. Tej zaum vim nws lub zog tsis muaj koob meej. Yog li, rau OM5, nws tseem muaj txoj kev mus ntev ntev.