Izigaba ezilandelayo zinikeza ukuhlaziywa okuningiliziwe kwezinkinga ezivamile ekuhlolweni kwe-fiber.
(1) Kungani ukuhlolwa kwefayibha kudlula kodwa iphakethe lisalahleka ngesikhathi sokusebenza kwenethiwekhi?
Ekukhetheni okujwayelekile, abasebenzisi abaningi bazokwenza amaphutha asobala, njengokunaka kancane ukuthi ifayibha ehloliwe ingu-50μm noma 62.5μm.
Izidingo zenani eliphezulu lokulahlekelwa lemicu yokuvula okubili zinkulu uma kuqhathaniswa. Ukukhetha okungalungile kwezinga lokuhlola ikhebula lokubona kuzoholela ngokuqondile ekuguqulweni komkhawulo wokunquma. Isibonelo, uma isixhumanisi esilinganisiwe sangempela siyifayibha engu-50μm, futhi izinga lokuhlola elikhethiwe lingu-62.5μm, futhi isicelo sithi 100Base-FX, kucatshangwa ukuthi umphumela wokuhlola ungu-10dB, umhloli uzothola umphumela we-PASS, futhi isimo sangempela kufanele sibe ayifanelekile Ngoba idlula umkhawulo wesinqumo ongu-6.3dB.
Lokhu kuphendula umbuzo wangaphambilini, futhi ukuhlolwa kuyaphumelela, kodwa kungani idatha isazolahlekelwa amaphakethe.
(2) Kungani izinga le-10 Gigabit lingasekelwa uma lidlula izinga le-10 Gigabit?
Kukhona abasebenzisi abanjalo abathuthukisa umgogodla wenethiwekhi. Bazothuthukisa amamojula we-shintshakanye neseva. Vele, bazophinde bahlole ukulahleka kwe-fiber kunethiwekhi. Kubonakala sengathi ayikho inkinga endleleni. I-fiber ihlolwe ukuhlangabezana nezidingo zenethiwekhi ye-10 Gigabit. , Ukulahlekelwa kungaphansi komkhawulo ojwayelekile, kodwa umphumela wangempela wokusebenza awukalungi.
Isizathu sokuhlaziya ngokuyinhloko ukuthi umkhawulokudonsa wemodi yekhebula le-fiber optic awucatshangelwa. Umkhawulokudonsa wemodi wamakhebuli e-fiber optic ahlukene umele umkhawulokudonsa omkhulu onganikezwa ngebanga elithile. Uma umkhawulokudonsa wemodi umkhulu, izinga lokudlulisela likhulu phakathi nebanga elithile.Zasetshenziswa eminyakeni yangaphambili. Ngokuvamile, umkhawulokudonsa wemodi uphansi kakhulu, ungaphansi kuka-160. Ngenxa yalokho, isivinini asikwazi ukunyuswa njengoba ibanga lide, nakuba ukulahlekelwa kuyamukeleka ngalesi sikhathi.
(3) Ukulahlekelwa kokuhlolwa kusezingeni elijwayelekile, futhi ayikho inkinga ngomkhawulokudonsa wemodi. Kungani kukhona inkinga ekusebenzeni kwangempela?
Sisenokungaqondi esivivinyweni. Uma nje ukulahlekelwa kudlula, i-fiber ibhekwa njengelungile, kodwa lokhu akunjalo. Uma kubhekwa isimo esinjalo, idizayini evamile idinga ukulahlekelwa kwesixhumanisi kube ngu-2.6dB. Ukulahlekelwa kwekhanda le-adaptha kungaphezu kuka-0.75dB, kodwa ukulahlekelwa okuphelele kwesixhumanisi kusengaphansi kuka-2.6dB. Ngalesi sikhathi, uma uvele uhlole ukulahlekelwa, ungase ungayitholi inkinga ye-adaptha, kodwa ekusetshenzisweni kwenethiwekhi yangempela, kuyoba ngenxa yenkinga ye-adaptha. Ngenxa yalokho, izinga lephutha lebhithi yokudlulisela likhuphuka kakhulu.