"OM" kunxibelelwano lwamehlo lubhekisa kwi "Optical Multi-mode".Imowudi ye-Optical, esemgangathweni yefiber ye-multimode ukubonisa ibakala lefiber.Okwangoku, i-TIA kunye ne-IEC ichaze imigangatho yentambo ye-fiber patch yi-OM1, i-OM2, i-OM3, i-OM4, kunye ne-OM5.
Okokuqala, yintoni i-multimode kunye nemowudi enye?
I-Single Mode Fiber yifayibha yamehlo evumela indlela enye yosulelo.I-diameter engundoqo imalunga ne-8 ukuya kwi-9 μm kunye ne-diameter yangaphandle malunga ne-125 μm. I-Multimode Optical Fiber ivumela iindlela ezahlukeneyo zokukhanya ukuba zidluliselwe kwi-fiber enye kunye ne-core diameter ye-50 μm kunye ne-62.5 μm.Ifiber yemowudi enye ixhasa umgama omde wothumelo kunefiber yemultimode.Kwi-100Mbps i-Ethernet ukuya kwi-1G Gigabit, i-fiber ye-mode eyodwa inokuxhasa umgama wokudlulisa ngaphezu kwe-5000m.Ifayibha ye-Multimode ifanelekile kuphela kumgama ophakathi kunye nomfutshane kunye neenkqubo ezincinci zonxibelelwano lwefiber optic.
Intonizi tyena umahluko phakathi kwe-OM1, OM2, OM3, OM4, OM5?
Ngokubanzi, i-OM1 iqhelekileyo 62.5/125um.OM2 iqhelekileyo 50/125um;I-OM3 yi-850nm laser-optimized 50um core multimode fiber.Kwi-10Gb / s Ethernet kunye ne-850nm VCSEL, umgama wokuhanjiswa kwefiber ungafikelela kwi-300m.OM4 yinguqu ephuculweyo ye-OM3.I-OM4 i-multimode fiber ilungisa ukulibaziseka kwemodi yokwahlukana (i-DMD) eyenziwa yi-OM3 i-fiber multimode ngexesha lokudluliselwa kwesantya esiphezulu.Ke ngoko, umgama wothumelo uphuculwe kakhulu, kwaye umgama wokuhanjiswa kwefayibha ungafikelela kuma-550m.I-OM5 intambo ye-fiber patch ngumgangatho omtsha we-fiber patch cords echazwe yi-TIA kunye ne-IEC kunye ne-fiber diameter ye-50 / 125 μm.Xa kuthelekiswa ne-OM3 kunye ne-OM4 iintambo ze-fiber patch, iintambo ze-OM5 ze-fiber patch zingasetyenziselwa izicelo eziphezulu ze-bandwidth.I-bandwidth kunye nomgama ophezulu uyahluka xa uhambisa kumanqanaba ahlukeneyo.
Yintoni i-OM5 fiber patch cord?
Eyaziwa ngokuba yi-Wideband Multimode Fiber Patch Cable (WBMMF), i-OM5 fiber yi-laser-optimized multimode fiber (MMF) eyenzelwe ukucacisa iimpawu ze-bandwidth ye-wavelength division multiplexing (WDM).Indlela entsha yokuhlelwa kwefiber yenzelwe ukuxhasa iindidi "ezifutshane" zamaza phakathi kwe-850 nm kunye ne-950 nm, ezifanelekileyo kwizicelo eziphezulu ze-bandwidth emva kwe-polymerization.I-OM3 kunye ne-OM4 ziyilelwe ngokukodwa ukuxhasa i-wavelength enye ye-850 nm.
Yintoni umahluko phakathi kwe-OM3 kunye ne-OM4?
1.Umbala webhatyi owahlukileyo
Ukuze ukwahlula phakathi kwee-jumpers ezahlukeneyo zefiber, imibala eyahlukeneyo ye-sheath yangaphandle isetyenziswa.Kwizicelo ezingezizo ezomkhosi, ifayibha yemowudi enye iqhele ukuba yibhatyi yangaphandle emthubi.Kwifiber multimode, i-OM1 kunye ne-OM2 zi-orange, i-OM3 kunye ne-OM4 ziluhlaza okwesibhakabhaka, kwaye i-OM5 iluhlaza ngamanzi.
2.Umda wesicelo owahlukileyo
I-OM1 kunye ne-OM2 sele isetyenziswe ngokubanzi kwizakhiwo iminyaka emininzi, ixhasa ukuhanjiswa kwe-Ethernet ukuya kuthi ga kwi-1GB.OM3 kunye ne-OM4 iintambo ze-fiber optic zisetyenziswa ngokuqhelekileyo kwiindawo ze-data center cabling ukuxhasa i-10G okanye i-40 / 100G iindlela ze-Ethernet ezikhawulezayo.Yenzelwe I-40Gb / s kunye ne-100Gb / s ukuhanjiswa, i-OM5 inciphisa inani leefayili ezinokuthi zihanjiswe ngesantya esiphezulu.
Iimpawu ze-OM5 ze-multimode fiber
1. Iintsinga ezimbalwa zixhasa izicelo eziphezulu ze-bandwidth
I-OM5 intambo ye-fiber patch ine-wavelength yokusebenza ye-850/1300 nm kwaye inokuxhasa ubuncinci be-4 wavelengths.Ubude obuqhelekileyo bokusebenza kwe-OM3 kunye ne-OM4 yi-850 nm kunye ne-1300 nm.Oko kukuthi, i-OM1 yendabuko, i-OM2, i-OM3, kunye ne-OM4 i-multimode fibers ineshaneli enye kuphela, ngelixa i-OM5 ineziteshi ezine, kwaye umthamo wokuhambisa unyuswe ngamaxesha amane. iteknoloji yokudlulisa, i-OM5 idinga kuphela i-8-core wideband multimode fiber (WBMMF), enokuxhasa izicelo ze-200 / 400G Ethernet, ukunciphisa kakhulu inani le-fiber cores.Kwinqanaba elingaphantsi, iindleko ze-wiring zenethiwekhi ziyancitshiswa.
2.Umgama wothumelo olungaphezulu
Umgama wothumelo lwe-OM5 ifayibha lide kunelo le-OM3 kunye ne-OM4.I-OM4 fiber yenzelwe ukuxhasa ubude ubuncinane beemitha ezili-100 kunye ne-100G-SWDM4 i-transceiver.Kodwa i-OM5 fiber inokuxhasa ukuya kuthi ga kwi-150 yeemitha ubude kunye ne-transceiver efanayo.
3.Ilahleko yefiber ephantsi
Ukutshatyalaliswa kwentambo ye-multimode ye-OM5 ye-broadband iyancipha ukusuka kwi-3.5 dB / km ye-OM3 yangaphambili, i-OM4 ikhebula ukuya kwi-3.0 dB / km, kwaye imfuno ye-bandwidth kwi-953 nm iye yanda.
I-OM5 inobukhulu obufanayo befiber njenge-OM3 kunye ne-OM4, oku kuthetha ukuba ihambelana ngokupheleleyo ne-OM3 kunye ne-OM4.Akudingeki ukuba iguqulwe kwi-wiring yesicelo ekhoyo i-OM5.
I-OM5 ifayibha iyancipha kwaye iguquguqukayo, ivumela ukuhanjiswa kwenethiwekhi yesantya esiphezulu kunye ne-multimode fiber cores, ngelixa iindleko kunye nokusetyenziswa kwamandla kuphantsi kakhulu kune-fiber mode eyodwa.Ngoko ke, ikusasa liya kusetyenziswa ngokubanzi kwi-100G / 400G / 1T idatha ye-ultra-large. amaziko.