Ho na le mefuta e fapaneng ea thapo ea fiber optic.Mefuta e meng ke ea mofuta o le mong, 'me mefuta e meng ke ea multimode.Likhoele tsa Multimode li hlalosoa ka li-diameter tsa tsona tsa mantlha le tsa cladding.Hangata bophara ba fiber ea multimode ke 50/125 µm kapa 62.5/125 µm.Hajoale, ho na le mefuta e mene ea likhoele tsa mefuta e mengata: OM1, OM2, OM3, OM4 le OM5.Litlhaku “OM” li emetse optical multimode.Mofuta o mong le o mong oa bona o na le litšobotsi tse fapaneng.
Standard
"OM" ka 'ngoe e na le bonyane bo hlokahalang Modal Bandwidth (MBW).OM1, OM2, le OM3 fiber li khethoa ke maemo a ISO 11801, a thehiloeng ho modal bandwidth ea fiber ea multimode.Ka Phato 2009, TIA/EIA e tjhaelletse monwana le ho lokolla 492AAAD, e hlalosang maemo a tshebetso bakeng sa OM4.Leha ba ntlafalitse mabitso a mantlha a "OM", IEC ha e e-so lokolle maemo a ts'oanang a amohelehang ao qetellong a tla ngoloa e le mofuta oa fiber A1a.3 ho IEC 60793-2-10.
Litlhaloso
● Cable ea OM1 hangata e tla le baki ea lamunu 'me e na le boholo ba li-micrometer tse 62.5 (µm).E ka tšehetsa 10 Gigabit Ethernet ka bolelele ba limithara tse 33.E sebelisoa hangata bakeng sa lits'ebetso tsa 100 Megabit Ethernet.
● OM2 e boetse e na le baki e khothalelitsoeng ea 'mala oa lamunu.Boholo ba eona ba mantlha ke 50µm sebakeng sa 62.5µm.E ts'ehetsa 10 Gigabit Ethernet ka bolelele ho fihla ho limithara tse 82 empa e sebelisoa hangata bakeng sa lits'ebetso tsa 1 Gigabit Ethernet.
● Fiber ea OM3 e na le 'mala oa baki o sisintsoeng oa aqua.Joalo ka OM2, boholo ba eona ba mantlha ke 50µm.E ts'ehetsa 10 Gigabit Ethernet ka bolelele ho fihla ho limithara tse 300.Ntle le OM3 e khona ho ts'ehetsa 40 Gigabit le 100 Gigabit Ethernet ho fihla ho limithara tse 100.10 Gigabit Ethernet ke ts'ebeliso ea eona e atileng haholo.
● OM4 e boetse e na le 'mala oa baki o khothalelitsoeng oa aqua.Ke ntlafatso e 'ngoe ho OM3.E boetse e sebelisa 50µm core empa e ts'ehetsa 10 Gigabit Ethernet ka bolelele ba limithara tse 550 mme e ts'ehetsa 100 Gigabit Ethernet ka bolelele ho fihla ho limithara tse 150.
● OM5 fiber, e tsejoang hape e le WBMMF (wideband multimode fiber), ke mofuta o mocha ka ho fetisisa oa fiber ea multimode, 'me e khutlela morao e lumellana le OM4.E na le boholo ba mantlha bo lekanang le OM2, OM3, le OM4.'Mala oa baki ea fiber ea OM5 e khethiloe e le botala ba lime.E etselitsoe ebile e hlalositsoe ho tšehetsa bonyane liteishene tse 'nè tsa WDM ka lebelo le fokolang la 28Gbps ka mocha ka fensetere ea 850-953 nm.Lintlha tse ling li ka fumanoa ho: Tse Tharo Tse Bohlokoa Tsepamisitsoeng ho Cable ea OM5 Fiber Optic
Diameter: Bophara ba mantlha ba OM1 ke 62.5 µm, leha ho le joalo, bophara ba mantlha ba OM2, OM3 le OM4 ke 50 µm.
| Mofuta oa Multimode Fiber | Diameter |
| OM1 | 62.5/125µm |
| OM2 | 50/125µm |
| OM3 | 50/125µm |
| OM4 | 50/125µm |
| OM5 | 50/125µm |
Mmala oa Jacket:OM1 le OM2 MMF hangata li hlalosoa ka baki ea Orange.OM3 le OM4 hangata li hlalosoa ka baki ea Aqua.OM5 hangata e hlalosoa ka baki ea Lime Green.
| Mofuta oa Cable oa Multimode | Mobala oa Jacket |
| OM1 | namunu |
| OM2 | namunu |
| OM3 | Aqua |
| OM4 | Aqua |
| OM5 | Lime Green |
Mohloli oa Optical:OM1 le OM2 hangata li sebelisa mohloli oa leseli la LED.Leha ho le joalo, OM3 le OM4 hangata li sebelisa 850nm VCSEL.
| Mofuta oa Cable oa Multimode | Mohloli oa Optical |
| OM1 | LED |
| OM2 | LED |
| OM3 | VSCEL |
| OM4 | VSCEL |
| OM5 | VSCEL |
Bophahamo ba motlakase:Ho 850 nm the minimal modal bandwidth ea OM1 ke 200MHz*km, ea OM2 ke 500MHz*km, ea OM3 ke 2000MHz*km, ea OM4 ke 4700MHz*km, ea OM5 ke 28000MHz*km.
| Mofuta oa Cable oa Multimode | Bophahamo ba motlakase |
| OM1 | 200MHz*km |
| OM2 | 500MHz*km |
| OM3 | 2000MHz*km |
| OM4 | 4700MHz*km |
| OM5 | 28000MHz*km |
U ka khetha Multimode Fiber joang?
Multimode fibers e khona ho fetisa mefuta e fapaneng ea sebaka ka lebelo le fapaneng la data.U ka khetha e loketseng ka ho fetisisa ho ea ka kopo ea hau ea sebele.Papiso e kholo ea sebaka sa fiber multimode ka sekhahla se fapaneng sa data se boletsoe ka tlase.
| Mofuta oa Cable oa Fiber Optic | Fiber Cable Distance | |||||||
|
| Ethernet 100BA SE-FX e potlakileng | 1Gb Ethernet 1000BASE-SX | 1Gb Ethernet 1000BA SE-LX | 10Gb Motheo oa SE-SR | 25Gb Base SR-S | 40Gb Base SR4 | 100Gb Base SR10 | |
| Multimode fiber | OM1 | 200m | 275m | 550m (mode conditioning patch cable ea hlokahala) | / | / | / | / |
|
| OM2 | 200m | 550m |
| / | / | / | / |
|
| OM3 | 200m | 550m |
| 300m | 70m | 100m | 100m |
|
| OM4 | 200m | 550m |
| 400m | 100m | 150m | 150m |
|
| OM5 | 200m | 550m |
| 300m | 100m | 400m | 400m |
Nako ea poso: Sep-03-2021