"OM" ka puisano ea optical e bolela "Optical Multi-mode".Optical mode, e leng tekanyetso ea multimode fiber ho bonts'a boemo ba fiber.Hajoale, litekanyetso tsa TIA le IEC tse hlalositsoeng fiber patch cord ke OM1, OM2, OM3, OM4, le OM5.
Pele ho tsohle, multimode le single mode ke eng?
Single Mode Fiber ke fiber ea optical e lumellang mokhoa o le mong feela oa phetisetso.Bophahamo ba mantlha bo ka bang 8 ho 9 μm le bophara ba ka ntle bo ka bang 125 μm. Multimode Optical Fiber e lumella mekhoa e fapaneng ea leseli hore e fetisetsoe holim'a fiber e le 'ngoe e nang le bophara ba 50 μm le 62.5 μm.Fiber ea mofuta o le mong e tšehetsa sebaka se selelele sa phetisetso ho feta fiber ea multimode.Ho 100Mbps Ethernet ho 1G Gigabit, fiber ea mokhoa o le mong e ka tšehetsa sebaka sa phetisetso ho feta 5000m.Multimode fiber e loketse feela bakeng sa sebaka se mahareng le se sekhuts'oane le lits'ebetso tse nyane tsa khokahanyo ea fiber optic.
Engke tphapang pakeng tsa OM1, OM2, OM3, OM4, OM5?
Ka kakaretso, OM1 e tloaelehile 62.5 / 125um.OM2 e tloaelehileng 50/125um;OM3 ke 850nm laser-optimized 50um core multimode fiber.Ho 10Gb / s Ethernet e nang le 850nm VCSEL, sebaka sa phetisetso ea fiber se ka fihla ho 300m.OM4 ke phetolelo e ntlafalitsoeng ea OM3.OM4 multimode fiber e ntlafatsa ho lieha ha mode (DMD) e hlahisoang ke fiber ea multimode ea OM3 nakong ea phetisetso ea lebelo le phahameng.Ka hona, sebaka sa phetisetso se ntlafalitsoe haholo, 'me sebaka sa phetiso ea fiber se ka fihla ho 550m.Mohala oa OM5 fiber patch ke mokhoa o mocha oa lithapo tsa fiber patch tse hlalositsoeng ke TIA le IEC ka bophara ba fiber ea 50/125 μm.Ha ho bapisoa le lithapo tsa OM3 le OM4 fiber patch, lithapo tsa OM5 fiber patch li ka sebelisoa bakeng sa lits'ebetso tse phahameng tsa bandwidth.The bandwidth le sebaka se seholo se fapane ha se fetisetsa maemong a fapaneng.
Khoele ea patch ea fiber ea OM5 ke eng?
E tsejoa e le Wideband Multimode Fiber Patch Cable (WBMMF), fiber ea OM5 ke laser-optimized multimode fiber (MMF) e etselitsoeng ho hlalosa litšobotsi tsa bandwidth bakeng sa wavelength division multiplexing (WDM).Mokhoa o mocha oa ho arola li-fiber o etselitsoe ho tšehetsa mefuta e sa tšoaneng ea "wavelengths" e khutšoanyane pakeng tsa 850 nm le 950 nm, e loketseng likopo tse phahameng tsa bandwidth ka mor'a polymerization.OM3 le OM4 li etselitsoe haholo ho ts'ehetsa leqhubu le le leng la 850 nm.
Phapano ke efe lipakeng tsa OM3 le OM4?
1.Mmala oa baki o fapaneng
E le ho khetholla pakeng tsa li-jumpers tse fapaneng tsa fiber, ho sebelisoa mebala e fapaneng ea sheath e ka ntle.Bakeng sa lits'ebetso tseo e seng tsa sesole, fiber ea mofuta o le mong hangata ke baki e ka ntle e mosehla.Ka fiber ea multimode, OM1 le OM2 ke lamunu, OM3 le OM4 ke metsi a maputsoa, 'me OM5 ke metsi a tala.
2.Different tshebediso pharalla
OM1 le OM2 li 'nile tsa sebelisoa ka ho pharaletseng mehahong ka lilemo tse ngata, ho tšehetsa phetisetso ea Ethernet ho fihlela ho 1GB.OM3 le OM4 fiber optic cables li tloaelehile ho sebelisoa libakeng tsa data center cabling ho tšehetsa 10G kapa esita le 40 / 100G litsela tsa Ethernet tse phahameng. Phetiso ea 40Gb / s le 100Gb / s, OM5 e fokotsa palo ea likhoele tse ka fetisoang ka lebelo le phahameng.
Likarolo tsa fiber ea multimode ea OM5
1. Likhoele tse fokolang li tšehetsa lits'ebetso tse phahameng tsa bandwidth
Khoele ea patch ea fiber ea OM5 e na le bolelele ba ts'ebetso ea 850/1300 nm mme e ka ts'ehetsa bonyane maqhubu a 4.Maqhubu a tloaelehileng a ho sebetsa a OM3 le OM4 ke 850 nm le 1300 nm.Ke ho re, mekhoa e tloaelehileng ea OM1, OM2, OM3, le OM4 multimode fibers e na le mocha o le mong feela, ha OM5 e na le litsela tse 'nè,' me matla a phetisetso a eketseha ka makhetlo a mane.Ho kopanya nako e khutšoanyane ea ho arohana ha maqhubu a mangata (SWDM) le parallel. theknoloji ea phetisetso, OM5 e hloka feela 8-core wideband multimode fiber (WBMMF), e ka tšehetsang lits'ebetso tsa 200 / 400G Ethernet, ho fokotsa haholo palo ea li-fiber cores.Ka tekanyo e fokolang, litšenyehelo tsa wiring tsa marang-rang li fokotsehile.
2.Farther phetiso sebaka
Sebaka sa phetisetso ea fiber ea OM5 e telele ho feta ea OM3 le OM4.Fiber ea OM4 e etselitsoe ho tšehetsa bolelele ba bonyane limithara tse 100 ka transceiver ea 100G-SWDM4.Empa fiber ea OM5 e ka ts'ehetsa bolelele ba limithara tse 150 ka transceiver e tšoanang.
3.Tahlehelo ea fiber e tlase
Ho fokotseha ha mohala oa multimode oa OM5 o fokotsehile ho tloha ho 3.5 dB / km bakeng sa OM3 e fetileng, cable ea OM4 ho ea ho 3.0 dB / km, 'me tlhokahalo ea bandwidth ho 953 nm e ekelitsoe.
OM5 e na le fiber e lekanang le boholo ba OM3 le OM4, e bolelang hore e lumellana ka botlalo le OM3 le OM4.Ha e hloke ho fetoloa ts'ebelisong e teng ea wiring OM5.
Fiber ea OM5 e ka senyeha le ho fetoha habonolo, e nolofalletsang phetisetso ea marang-rang ka lebelo le phahameng ka li-cores tse fokolang tsa multimode, ha litšenyehelo le tšebeliso ea matla li le tlase haholo ho feta mokhoa o le mong oa fiber. litsi.