Kukho amabakala ama-5 e-multimode fiber: OM1, OM2, OM3, OM4, kwaye ngoku i-OM5. Yintoni kanye ebenza bahluke?
Embindini (uxolo i-pun), yintoni eyahlula la manqaku efiber ubukhulu bawo angundoqo, abadlulisi, kunye ne-bandwidth.
Iifiber ze-Optical multimode (OM) zine-core ye-50 µm (OM2-OM5) okanye i-62.5 µm (OM1). Undoqo omkhulu uthetha ukuba iindlela ezininzi zokukhanya zihamba ezantsi embindini ngaxeshanye, kungoko igama elithi "multimode."
IiFayibha zeLifa
Okubalulekileyo, i-OM1's 62.5 µm ubungakanani obungundoqo buthetha ukuba ayihambelani namanye amabanga e-multimode kwaye ayinakwamkela izihlanganisi ezifanayo. Ekubeni i-OM1 kunye ne-OM2 zombini zineebhatyi eziorenji zangaphandle (ngokwemigangatho ye-TIA/EIA), soloko ujonga intsomi yoshicilelo kwintambo ukuze uqinisekise ukuba usebenzisa izihlanganisi ezichanekileyo.
Iifiber zakwa-OM1 kunye ne-OM2 zombini zaziyilelwe ukusetyenziswa kunye nemithombo ye-LED okanye ii-transmitter. Unyino lokumodareyitha kwee-LED ngokunjalo kunciphisa amandla e-OM1 kunye ne-OM2 yokuqala.
Nangona kunjalo, imfuno ekhulayo yesantya ithetha ukuba iifiber ze-optical zifuna amandla aphezulu e-bandwidth. Faka i-laser-optimized multimode fibers (LOMMF): OM2, OM3 kunye ne-OM4, kwaye ngoku i-OM5.
Laser-Optimization
I-OM2, i-OM3, i-OM4, kunye ne-OM5 iifayili zenzelwe ukusebenza kunye ne-laser-cavity surface-emitting lasers (VCSELs), ngokubanzi kwi-850 nm. Namhlanje, i-laser-optimized OM2 (efana neyethu) nayo ifumaneka ngokulula. Ii-VCSEL zivumela amaxabiso akhawulezayo okumodareyitha kunee-LED, okuthetha ukuba iifiber ezenziwe ngelaser zinokusasaza idatha eninzi kakhulu.
Ngokwemigangatho yoshishino, i-OM3 ine-modal bandwidth esebenzayo (EMB) ye-2000 MHz * km kwi-850 nm. I-OM4 inokusingatha i-4700 MHz * km.
Ngokumalunga nokuchongwa, i-OM2 igcina ijacket ye-orange, njengoko kuphawuliwe ngasentla. I-OM3 kunye ne-OM4 zombini zinokuba nejacket yangaphandle ye-aqua (oku kuyinyaniso kwi-Cleerline OM3 kunye ne-OM4 patch cables). I-OM4 inokuvela ngenye indlela ngebhatyi yangaphandle ethi "Erika violet". Ukuba ubalekela kwintambo ye-optic ye-magenta eqaqambileyo, mhlawumbi yi-OM4. Ngokonwaba, i-OM2, i-OM3, i-OM4, kunye ne-OM5 zonke ziyi-50/125 µm iintsinga kwaye zonke zinokuzamkela iziqhagamshelo ezifanayo. Qaphela, nangona kunjalo, ukuba iikhowudi zemibala yesinxibelelanisi ziyahluka. Ezinye izihlanganisi ze-multimode zinokuphawulwa njenge "zilungiselelwe i-OM3 / OM4 ifayibha" kwaye ziya kuba nemibala ye-aqua. I-laser-optimized multimode connectors inokuba yi-beige okanye emnyama. Ukuba kukho ukubhideka, nceda ujonge iinkcukacha zesiqhagamshelo ngokubhekisele kubungakanani obungundoqo. Ukuthelekisa ubungakanani obuphambili yeyona nto ibalulekileyo kwizixhumi zoomatshini, njengoko iqinisekisa ukuba umqondiso uya kugcina ukuqhubela phambili ngekhonkco.
Ixesha lokuposa: Aug-01-2022