Ama-transceivers e-Fiber optic ngokuvamile asetshenziswa endaweni yangempela yenethiwekhi lapho izintambo ze-Ethernet zingakwazi ukumboza futhi kufanele zisebenzise ama-optical fibers ukwandisa ibanga lokudlulisela.Ngokuvamile atholakala kungqimba yokufinyelela yamanethiwekhi ezindawo zedolobha elikhulu, futhi asetshenziswa kakhulu kumaphrojekthi ahlukahlukene wokuqapha nokuphepha.Kodwa nakanjani sizohlangabezana nezinkinga ezithile ohlelweni lokusebenzisa i-fiber optic transceivers, ngakho-ke siyixazulula kanjani ngemva kokubhekana nenkinga.
Ukwehluleka okuvamile kanye nezixazululo ze-optical fiber transceivers
1. Hlobo luni lokuxhuma olusetshenziswayo lapho i-transceiver RJ45 port ixhunywe kwezinye izinto zokusebenza?
Isizathu: Imbobo ye-RJ45 ye-transceiver ixhunywe ekhadini lenethiwekhi ye-PC (imishini yetheminali yedatha ye-DTE) kusetshenziswa ipheya ephambanisayo, kanti i-HUB noma i-SWITCH (imishini yokuxhumana yedatha ye-DCE) isetshenziselwa imigqa ehambisanayo.
2. Yisiphi isizathu esenza ukuthi ukukhanya kwe-TxLink kuvaliwe?
Izizathu: a.Xhuma ipheya esontekile engalungile;b.Ukuxhumana okungalungile phakathi kwekhanda lekristalu elisontekile kanye nedivayisi, noma ikhwalithi yebhangqa elisontekile ngokwalo;c.Idivayisi ayixhunyiwe kahle.
3. Isiphi isizathu esenza ukukhanya kwe-TxLink kungacwayizi kodwa kuhlale kuvuliwe ngemva kokuba i-fiber ixhunywe kahle?
Umsindo wokuqala: a.Iphutha ngokuvamile libangelwa ibanga elide lokudlulisela;b.Ukuhambisana nekhadi lenethiwekhi (exhunywe kwi-PC).
4. Yisiphi isizathu esenza ukuthi ukukhanya kwe-Fxlink kuvaliwe?
Izizathu: a.Ikhebula le-fiber lixhunywe ngokungalungile.Indlela yokuxhumana efanele yi-TX-RX, RX-TX noma imodi yefiber ayilungile;b.Ibanga lokudlulisela lide kakhulu noma ukulahlekelwa okumaphakathi kukhulu kakhulu, kudlula ukulahlekelwa okukodwa kwalo mkhiqizo.Isixazululo siwukuthi : Thatha izinyathelo zokunciphisa ukulahlekelwa okuphakathi noma esikhundleni sakho ufake ibanga elide lokudlulisela;c.Izinga lokushisa lokusebenza le-optical fibre transceiver liphezulu kakhulu.
5. Yisiphi isizathu esenza ukukhanya kwe-Fxlink kungacwayizi kodwa kuhlale kuvuliwe ngemva kokuba i-fiber ixhunywe kahle?
Imbangela: Leli phutha ngokuvamile libangelwa ibanga lokudlulisela libe lide kakhulu noma ukulahlekelwa okuphakathi kube kukhulu kakhulu, okudlula ukulahlekelwa okukodwa kwalo mkhiqizo.Isixazululo siwukunciphisa ukulahlekelwa okuphakathi noma esikhundleni saso ufake isidluliseli sebanga elide lokudlulisa.
6. Yini okufanele ngiyenze uma amalambu amahlanu ekhanya wonke noma inkomba ijwayelekile kodwa ingakwazi ukudluliselwa?
Isizathu: Ngokuvamile, cisha bese uqala kabusha ukuze ubuyisele okuvamile.
7. Liyini izinga lokushisa elizungezile le-transceiver?
Imbangela: I-optical fibre module ithintwa kakhulu izinga lokushisa le-ambient.Nakuba inomjikelezo wokuzuza othomathikhi owakhelwe ngaphakathi, ngemva kokuba izinga lokushisa lidlula ububanzi obuthile, amandla okukhanya emoduli ye-optical ayathinteka futhi ancishisiwe, ngaleyo ndlela enza buthaka ikhwalithi yesiginali yenethiwekhi ye-optical futhi abangele ukulahlekelwa kwephakethe Izinga liyakhuphuka, ngisho nokunqamula. isixhumanisi se-optical;(ngokuvamile izinga lokushisa lokusebenza le-optical fibre module lingafinyelela ku-70 ℃)
8. Kunjani ukuhambisana nesivumelwano sedivayisi yangaphandle?
Isizathu: I-10/100M i-fiber transceivers inemikhawulo yobude befreyimu efanayo njengokushintshwa kwe-10/100M, ngokuvamile akukho ngaphezu kwe-1522B noma i-1536B.Lapho iswishi exhunywe ehhovisi elimaphakathi isekela izivumelwano ezithile ezikhethekile (ezifana ne-Ciss' ISL) I-overhead yephakethe iyakhuphuka (i-packet ye-Ciss ISL ngaphezulu ingu-30Bytes), eyeqa umkhawulo ongaphezulu wobude befreyimu ye-fiber transceiver futhi ilahlwe yona, ekhombisa izinga eliphezulu noma elingaphumelelanga lokulahlekelwa kwephakethe.Ngalesi sikhathi, i-MTU yedivayisi yetheminali idinga ukulungiswa Kuyunithi yokuthumela, iphakethe elivamile le-IP elingaphezulu ngamabhayithi angu-18, kanti i-MTU ingamabhayithi angu-1500.Njengamanje, abakhiqizi bemishini yokuxhumana ephezulu banezivumelwano zangaphakathi zenethiwekhi.Ngokuvamile, indlela yephakethe ehlukile isetshenziswa ukwandisa iphakethe le-IP ngaphezulu.Uma idatha ingamabhayithi angu-1500 Ngemva kwephakethe le-IP, usayizi wephakethe le-IP uzodlula u-18 futhi ulahlwe), ukuze usayizi wephakethe ohanjiswe kulayini ugculise umkhawulo wedivayisi yenethiwekhi kubude befreyimu.1522 byte of amaphakethe kwengezwa VLANtag.
9. Ngemva kokuba i-chassis isisebenze isikhathi esithile, kungani amanye amakhadi ehluleka ukusebenza kahle?
Isizathu: Ukunikezwa kwamandla kwe-chassis yangaphambi kwesikhathi kusebenzisa imodi yokudlulisa.Imajini yokuphakelwa kwamandla anganele kanye nokulahleka kwentambo enkulu yizinkinga ezinkulu.Ngemuva kokuthi i-chassis isebenze isikhathi eside, amanye amakhadi awakwazi ukusebenza ngokujwayelekile.Uma amanye amakhadi ekhishwa, amakhadi asele asebenza ngokujwayelekile.Ngemuva kokuthi i-chassis isebenze isikhathi eside, i-oxidation yesixhumi ibangela ukulahlekelwa okukhulu kwesixhumi.Lokhu kuphakelwa kukagesi kweqa izimiso.Ububanzi obudingekayo bungabangela ikhadi le-chassis ukuthi libe elingavamile.Ama-diode e-Schottky anamandla aphezulu asetshenziselwa ukuhlukanisa nokuvikela iswishi yamandla ka-chassis, ukuthuthukisa uhlobo lwesixhumi, nokunciphisa ukwehla kokunikezwa kwamandla okubangelwa isifunda sokulawula nesixhumi.Ngasikhathi sinye, ukuphelelwa amandla kokunikezwa kwamandla kuyenyuka, okwenza ngempela ukunikezwa kwamandla okuyisipele kube lula futhi kuphephe, futhi kukwenze kufanelane kakhulu nezidingo zomsebenzi ongaphazamiseki wesikhathi eside.
10. Yimiphi imisebenzi ehlinzekwa yi-alamu yesixhumanisi ku-transceiver?
Isizathu: I-transceiver inomsebenzi we-alamu yesixhumanisi (linkloss).Uma i-fiber inqanyulwa, izobuyela ngokuzenzakalelayo embobeni kagesi (okungukuthi, inkomba esembobeni kagesi nayo izophuma).Uma iswishi inokuphathwa kwenethiwekhi, izoboniswa kuswishi ngokushesha.Isofthiwe yokuphatha inethiwekhi.