“OM” na nzikọrịta ozi anya na-ezo aka na “Optical Multi-mode”.Ngwa anya, nke bụ ọkọlọtọ maka multimode fiber na-egosi ọkwa eriri.Ugbu a, TIA na IEC akọwapụtara ụkpụrụ eriri eriri eriri bụ OM1, OM2, OM3, OM4, na OM5.
Nke mbụ, gịnị bụ multimode na otu mode?
Single Mode Fiber bụ eriri anya na-enye ohere naanị otu ụdị nnyefe.The isi dayameta bụ banyere 8 ka 9 μm na elu dayameta bụ banyere 125 μm. Multimode Optical Fiber na-enye ohere dị iche iche ụdịdị nke ìhè na-ebunye n'elu otu eriri na a isi dayameta nke 50 μm na 62.5 μm.Otu ụdị eriri na-akwado ogologo nnyefe anya karịa multimode eriri.Na 100Mbps Ethernet ruo 1G Gigabit, eriri otu ụdị nwere ike ịkwado ebe nnyefe karịrị 5000m.Multimode eriri bụ naanị adabara ọkara na obere anya na obere ikike fiber optic nkwurịta okwu usoro.
Kedubụ tỌ dị iche n'etiti OM1, OM2, OM3, OM4, OM5?
N'ozuzu, OM1 bụ 62.5/125um.OM2 bụ 50/125um;OM3 bụ 850nm laser-kachasị mma 50um isi multimode eriri.Na 10Gb/s Ethernet nwere 850nm VCSEL, ebe nnyefe eriri nwere ike iru 300m.OM4 bụ ụdị nkwalite nke OM3.OM4 multimode fiber na-ebuli oge igbu oge dị iche iche (DMD) nke OM3 multimode fiber mepụtara n'oge nnyefe ọsọ ọsọ.Ya mere, a na-emeziwanye ebe nnyefe nke ọma, ebe nnyefe eriri nwere ike iru 550m.Ụdọ eriri eriri OM5 bụ ọkọlọtọ ọhụrụ maka eriri eriri eriri nke TIA na IEC kọwapụtara na dayameta eriri nke 50/125 μm.E jiri ya tụnyere OM3 na OM4 fiber patch cords, OM5 fiber patch cords nwere ike iji mee ihe maka ngwa bandwidth dị elu. bandwidth na ebe dị anya dị iche iche mgbe ọ na-ebufe na ọkwa dị iche iche.
Kedu ihe bụ OM5 fiber patch cord?
Amara dị ka Wideband Multimode Fiber Patch Cable (WBMMF), fiber OM5 bụ eriri multimode nke laser kachasị mma (MMF) emebere iji kọwaa njirimara bandwidth maka nkewa nkewa ogologo (WDM).Emebere usoro nhazi eriri ọhụrụ iji kwado ụdị dị iche iche nke "mkpụmkpụ" dị n'etiti 850 nm na 950 nm, nke dabara maka ngwa bandwidth dị elu mgbe polymerization gasịrị.Emebere OM3 na OM4 nke ọma iji kwado otu ogologo wavelength nke 850 nm.
Kedu ihe dị iche n'etiti OM3 na OM4?
1.Different jaket agba
Iji mata ọdịiche dị n'etiti ndị na-awụ elu fiber dị iche iche, a na-eji agba dị iche iche nke n'elu elu mee ihe.Maka ngwa ndị na-abụghị ndị agha, eriri otu mode na-abụkarị jaket elu na-acha odo odo.Na multimode fiber, OM1 na OM2 bụ oroma, OM3 na OM4 bụ mmiri na-acha anụnụ anụnụ, na OM5 bụ mmiri akwụkwọ ndụ akwụkwọ ndụ.
2.Different ngwa akporo
OM1 na OM2 ka etinyere n'ọtụtụ ebe na ụlọ ruo ọtụtụ afọ, na-akwado nnyefe Ethernet ruo 1GB.OM3 na OM4 fiber optic cables na-ejikarị na ebe nchekwa data center cabling na-akwado 10G ma ọ bụ ọbụna 40/100G na-agba ọsọ Ethernet ụzọ. 40Gb / s na 100Gb / s nnyefe, OM5 na-ebelata ọnụ ọgụgụ nke eriri ndị nwere ike ibunye na nnukwu ọsọ ọsọ.
OM5 multimode eriri atụmatụ
1. Obere eriri na-akwado ngwa bandwidth dị elu
Ụdọ eriri fiber OM5 nwere ogologo wavelength na-arụ ọrụ nke 850/1300 nm ma nwee ike ịkwado ma ọ dịkarịa ala 4 wavelengths.Ogologo ogologo ogologo ọrụ nke OM3 na OM4 bụ 850 nm na 1300 nm.Nke ahụ bụ, omenala OM1, OM2, OM3, na OM4 multimode fibers nwere nanị otu ọwa, ebe OM5 nwere ọwa anọ, na ikike nnyefe na-abawanye site na ugboro anọ. Ịgwakọta nkewa nkewa nke dị mkpirikpi (SWDM) na ihe yiri ya. teknụzụ nnyefe, OM5 chọrọ naanị 8-core wideband multimode fiber (WBMMF), nke nwere ike ịkwado ngwa Ethernet 200/400G, na-ebelata ọnụ ọgụgụ nke eriri eriri.Ruo n'ókè dị nta, a na-ebelata ọnụ ahịa wiwi nke netwọk ahụ.
2.Ebe nnyefe dị anya
Ogologo nnyefe nke eriri OM5 dị ogologo karịa nke OM3 na OM4.Emebere eriri OM4 iji kwado ogologo ma ọ dịkarịa ala 100 mita na transceiver 100G-SWDM4.Mana eriri OM5 nwere ike ịkwado ihe ruru mita 150 n'ogologo yana otu transceiver.
3.Lower eriri ọnwụ
Mbelata nke OM5 brọdband multimode cable ka e belatara site na 3.5 dB / km maka OM3 gara aga, OM4 USB ruo 3.0 dB / km, na bandwidth chọrọ na 953 nm abawanyela.
OM5 nwere otu eriri nha ka OM3 na OM4, nke pụtara na ọ dabara n'ụzọ zuru ezu na OM3 na OM4.Ọ dịghị mkpa ka a gbanwee ya na ngwa wiring dị ugbu a OM5.
OM5 eriri bụ ihe scalable na mgbanwe, na-enyere elu ọsọ netwọk nnyefe na ole na ole multimode eriri cores, mgbe na-eri na ike oriri bụ nnọọ ala karịa otu mode fiber.Ya mere, ọdịnihu ga-ọtụtụ ebe na 100G/400G/1T ultra-nnukwu data. etiti.