Waxaa jira noocyo kala duwan oo fiilada fiber optic.Noocyada qaarkood waa hal-hab, iyo noocyada qaar waa multimode.Fiilooyinka Multimode waxaa lagu sifeeyaa xudunta u ah dhexroorkooda iyo dhexroorkooda.Caadi ahaan dhexroorka fibre-ga multimode-ku waa 50/125 µm ama 62.5/125 µm.Waqtigan xaadirka ah, waxaa jira afar nooc oo fiber-mode-badan ah: OM1, OM2, OM3, OM4 iyo OM5.Xarfaha "OM" waxay u taagan yihiin qaab-dhismeedka indhaha.Nooc kasta oo iyaga ka mid ah ayaa leh astaamo kala duwan.
Heerka
Mid kasta oo "OM" waxa uu leeyahay ugu yaraan Modal Bandwidth (MBW) looga baahan yahay.OM1, OM2, iyo OM3 fiber waxaa go'aamiya heerka ISO 11801, kaas oo ku saleysan modal bandwidth ee fiber multimode.Bishii Ogosto 2009, TIA/EIA waxay ogolaatay oo sii daysay 492AAAD, kaas oo qeexaya shuruudaha waxqabadka OM4.In kasta oo ay soo saareen tilmaamihii asalka ahaa ee “OM”, IEC wali ma aysan sii dayn heer u dhigma oo la ansixiyay oo aakhirka loo diiwaangelin doono nooca fiber A1a.3 ee IEC 60793-2-10.
Tilmaamaha
● Fiilada OM1 waxay sida caadiga ah la socotaa jaakad liimi ah wuxuuna leeyahay cabbirka xudunta ah ee 62.5 micrometers (µm).Waxay taageeri kartaa 10 Gigabit Ethernet oo dhererkeedu yahay 33 mitir.Waxaa inta badan loo isticmaalaa codsiyada 100 Megabit Ethernet.
● OM2 waxay kaloo leedahay jaakad la soo jeediyay oo ah midab oranji ah.Cabbirkiisu waa 50µm halkii uu ka ahaan lahaa 62.5µm.Waxay taageertaa 10 Gigabit Ethernet oo dhererkeedu yahay ilaa 82 mitir laakiin inta badan waxaa loo isticmaalaa codsiyada 1 Gigabit Ethernet.
● Fiber OM3 waxa uu leeyahay midabka jaakada la soo jeediyay ee aqua.Sida OM2, cabbirkeeda xudunta u ah waa 50µm.Waxay taageertaa 10 Gigabit Ethernet dhererka ilaa 300 mitir.Ka sokow OM3 waxay awoodaa inay taageerto 40 Gigabit iyo 100 Gigabit Ethernet ilaa 100 mitir.10 Gigabit Ethernet waa adeegsigeeda ugu badan.
● OM4 sidoo kale waxay leedahay midab jaakad la soo jeediyay oo aqua ah.Waxay horumar dheeraad ah u tahay OM3.Waxa kale oo ay isticmaashaa xudunta 50µm laakiin waxay taageertaa 10 Gigabit Ethernet oo dhererkeedu yahay 550 mitir waxayna taageertaa 100 Gigabit Ethernet dhererka ilaa 150 mitir.
● OM5 fiber, oo sidoo kale loo yaqaan WBMMF (fiber multimode fiber), waa nooca ugu cusub ee fiber-mode-ka badan, waana gadaal-socod OM4.Waxay leedahay cabbirka asaasiga ah ee OM2, OM3, iyo OM4.Midabka jaakada fiber OM5 ayaa loo doortay sida cagaarka lime.Waxaa loo qaabeeyey oo loo qoondeeyey in lagu taageero ugu yaraan afar kanaal WDM xawliga ugu yar ee 28Gbps kanaal kasta iyada oo loo marayo daaqada 850-953 nm.Faahfaahin dheeraad ah ayaa laga heli karaa: Saddexda Diirad ee Muhiimka ah ee OM5 Fiber Optic Cable
Dhexroor: Dhexroorka xudunta u ah OM1 waa 62.5 µm, si kastaba ha ahaatee, dhexroorka ubucda OM2, OM3 iyo OM4 waa 50 µm.
| Nooca Fiber-ka Multimode | Dhexroorka |
| OM1 | 62.5/125µm |
| OM2 | 50/125µm |
| OM3 | 50/125µm |
| OM4 | 50/125µm |
| OM5 | 50/125µm |
Midabka Jaakada:OM1 iyo OM2 MMF waxaa guud ahaan lagu qeexay jaakad Orange ah.OM3 iyo OM4 waxaa badanaa lagu qeexaa jaakada Aqua.OM5 waxaa badanaa lagu qeexaa jaakad cagaaran oo lime ah.
| Nooca Cable-ka Multimode | Midabka jaakada |
| OM1 | Orange |
| OM2 | Orange |
| OM3 | Aqua |
| OM4 | Aqua |
| OM5 | Cagaar liin |
Isha indhaha:OM1 iyo OM2 waxay caadi ahaan isticmaalaan isha iftiinka LED.Si kastaba ha ahaatee, OM3 iyo OM4 waxay badanaa isticmaalaan 850nm VCSEL.
| Nooca Cable-ka Multimode | Isha indhaha |
| OM1 | LED |
| OM2 | LED |
| OM3 | VSCEL |
| OM4 | VSCEL |
| OM5 | VSCEL |
Bandwidth:Marka la joogo 850 nm xawaaraha ugu yar ee xawaaraha OM1 waa 200MHz*km, OM2 waa 500MHz*km, OM3 waa 2000MHz*km, OM4 waa 4700MHz*km, OM5 waa 28000MHz*km.
| Nooca Cable-ka Multimode | Bandwidth |
| OM1 | 200MHz*km |
| OM2 | 500MHz*km |
| OM3 | 2000MHz*km |
| OM4 | 4700MHz*km |
| OM5 | 28000MHz*km |
Sidee loo doortaa Multimode Fiber?
Fibers Multimode waxay awoodaan inay gudbiyaan masaafo kala duwan oo heerar xog oo kala duwan ah.Waxaad dooran kartaa midka ugu habboon marka loo eego codsigaaga dhabta ah.Isbarbardhigga fogaanta fibre-ka ugu badan ee multimode ee heerka xogta kala duwan ayaa hoos lagu qeexay.
| Nooca Cable Fiber Optic | Fogaanta Cable Fiber | |||||||
|
| Fast Ethernet 100BA SE-FX | 1Gb Ethernet 1000BASE-SX | 1Gb Ethernet 1000BA SE-LX | 10Gb Saldhig SE-SR | 25Gb Saldhig SR-S | 40Gb Saldhig SR4 | 100Gb Saldhig SR10 | |
| Multimode fiber | OM1 | 200m | 275m | 550m (qaabka qaboojinta fiilada balastar ayaa loo baahan yahay) | / | / | / | / |
|
| OM2 | 200m | 550m |
| / | / | / | / |
|
| OM3 | 200m | 550m |
| 300m | 70m | 100m | 100m |
|
| OM4 | 200m | 550m |
| 400m | 100m | 150m | 150m |
|
| OM5 | 200m | 550m |
| 300m | 100m | 400m | 400m |
Waqtiga boostada: Sebtembar-03-2021