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Ungawafinyelela kanjani amashumi amakhilomitha okudluliselwa kwebanga elide?Ngamabhokisi amabili amancane?Ngokushesha ukuqoqa amaphuzu ulwazi!

Uma kuziwa ekudlulisweni kwebanga elide, kucatshangelwa izindleko, umshayeli omdala uzocabanga kuqala ngezinto ezimbili: ama-fiber optic transceivers namabhuloho.Nge-fiber optics, sebenzisa ama-transceivers.Uma ingekho i-fiber optical, kuya ngokuthi imvelo yangempela ingaxhuma yini ebhulohweni.
Ngaphezu kwamakhilomitha ayishumi nenqwaba yamakhilomitha, kodwa futhi ukuze kuqinisekiswe ukudluliswa okuzinzile nokuthembekile, i-optical fiber ibalulekile.
Namuhla, ake sikhulume ngesixazululo esihamba phambili ekuxhumaneni kwe-optical fibre - i-optical fibre transceiver.
I-transceiver iyithuluzi lokuguqula isignali, ngokuvamile ebizwa ngokuthi i-fiber optic transceiver.Ukuvela kwama-transceivers e-fiber optical kuguqula amasignali kagesi amabili asontekile kanye namasignali optical komunye nomunye, ukuqinisekisa ukudluliswa okubushelelezi kwamaphakethe wedatha phakathi kwamanethiwekhi amabili, futhi ngesikhathi esifanayo kunweba umkhawulo webanga lokudlulisela lenethiwekhi ukusuka kumamitha ayi-100 wezintambo zethusi kuya ku-100. amakhilomitha (i-fiber yemodi eyodwa).
Ngokuthuthuka okuqhubekayo kobuchwepheshe, sekuphenduke inkambiso yamanje yokuthi ubuchwepheshe be-serial VO obunesivinini esiphezulu buthatha indawo yobuchwepheshe be-I/O obujwayelekile obuhambisanayo.Isivinini esisheshayo esihambisana nebhasi ngu-133 MB/s se-ATA7.Izinga lokudlulisa elinikezwe ukucaciswa kwe-SATA1.0 elakhishwa ngo-2003 selifinyelele ku-150 MB/s, futhi isivinini sethiyori se-SATA3.0 sesifinyelele ku-600 MB/s.Uma idivayisi isebenza ngesivinini esikhulu, ibhasi elihambisanayo lisengozini yokuphazamiseka kanye ne-crosstalk, okwenza izintambo zibe nzima kakhulu.Ukusetshenziswa kwama-serial transceivers kungenza ukwakheka kwesakhiwo kube lula futhi kunciphise inani lezixhumi.Izixhumi ezibonakalayo ze-serial zisebenzisa amandla amancane kunamachweba ahambisanayo anomkhawulokudonsa webhasi ofanayo.Futhi imodi yokusebenza yedivayisi ishintshiwe kusukela ekudluliseleni okufanayo kuya ekudlulisweni kwe-serial, futhi isivinini se-serial singaphindeka kabili njengoba imvamisa inyuka.
Izinga lejubane le-Gb elishumekiwe elisuselwa ku-FPGA kanye nezinzuzo zesakhiwo samandla aphansi, lenza abaklami bakwazi ukusebenzisa amathuluzi e-EDA asebenzayo ukuxazulula ngokushesha inkinga yephrothokholi nezinguquko zejubane.Ngokusetshenziswa okubanzi kwe-FPGA, i-transceiver ihlanganiswe ku-FPGA, eye yaba yindlela ephumelelayo yokuxazulula inkinga yejubane lokudlulisa imishini.
Ama-transceivers anesivinini esikhulu enza kube nokwenzeka ukudlulisa amanani amakhulu wedatha iphuzu-kuya-phuzu.Lobu buchwepheshe bokuxhumana kwe-serial busebenzisa ngokugcwele umthamo wesiteshi se-transmission medium futhi kunciphisa inani lamashaneli okudlulisela adingekayo namaphinikhodi wedivayisi uma kuqhathaniswa namabhasi edatha afanayo, ngaleyo ndlela kunciphisa kakhulu ukuxhumana.izindleko.I-transceiver esebenza kahle kakhulu kufanele ibe nezinzuzo zokusebenzisa amandla aphansi, usayizi omncane, ukumiswa okulula, nokusebenza kahle okuphezulu, ukuze ihlanganiswe kalula ohlelweni lwebhasi.Kuphrothokholi yokudlulisa idatha ye-serial enesivinini esikhulu, ukusebenza kwe-transceiver kudlala indima ewujuqu ngenani lokudlulisela le-interface yebhasi, futhi kuthinta nokusebenza kwesistimu yesixhumi esibonakalayo sebhasi ngezinga elithile.Lolu cwaningo luhlaziya ukugcwaliseka kwemojula ye-transceiver enesivinini esikhulu kuplathifomu ye-FPGA, futhi luhlinzeka ngereferensi ewusizo yokufezekiswa kwezinqubo ezihlukahlukene ze-serial ezinesivinini esikhulu.
Leli bhokisi elincane linezinga eliphezulu kakhulu lokuchayeka esikimini sokudluliswa kwebanga elide, futhi ngokuvamile lingabonakala ekuqaphelweni kwethu, ekufinyeleleni okungenantambo, kwefiber optical nezinye izimo.
isetshenziswa kanjani
Ama-transceiver e-fiber optical ngokuvamile asetshenziswa ngababili, futhi asetshenziswa ekugcineni kokufinyelela (okungaxhunywa kumatheminali afana namakhamera, ama-AP, nama-PC ngokushintsha) kanye nesiphetho sokwamukela esikude (njengegumbi lekhompyutha/igumbi lokulawula elimaphakathi, njll. ., yebo, ingaphinda isetshenziselwe ukufinyelela.itheminali), ngaleyo ndlela yakha ibhuloho lokuxhumana elisezingeni eliphansi, elinesivinini esikhulu futhi elizinzile kuzo zombili iziphetho.
Empeleni, inqobo nje uma ukucaciswa kobuchwepheshe okufana nenani, ubude begagasi, uhlobo lwefayibha (njengomkhiqizo ofanayo wemodi eyodwa-fiber eyodwa, noma i-dual-fiber efanayo yemodi eyodwa) kuhambisana, izinhlobo ezahlukene ziyafaniswa, futhi umkhawulo owodwa we-fiber transceiver kanye nokuphela kwe-module optical ingafinyelelwa.ukuxhumana.Kodwa asikuncomi.
I-Single ne-Dual Fiber
I-transceiver ye-single-fiber isebenzisa ubuchwepheshe be-WDM (wavelength division multiplexing), isiphetho esisodwa sidlulisa ubude be-wavelength 1550nm, ithola ubude be-wavelength 1310nm, kanti enye igcina idlulisa i-1310nm futhi ithole i-1550nm, ukuze ibone idatha eyamukelayo futhi ithunyelwa ku-fiber eyodwa optical.
Ngakho-ke, kunembobo yokukhanya eyodwa kuphela kulolu hlobo lwe-transceiver, futhi iziphetho ezimbili zifana ncamashi.Ukuze kuhlukaniseke, imikhiqizo ivamise ukukhonjwa ngo-A no-B.
I-fiber transceiver eyodwa (esithombeni ipheya, iqanda elilodwa)
Izimbobo zokubona ze-dual-fiber transceiver "ziyipheya eyodwa" - imbobo yokudlulisa ephawulwe nge-TX + imbobo eyamukelayo ephawulwe nge-RX, enye ingxenye iyipheya, futhi ukuthumela nokwamukela ngakunye kwenza imisebenzi yayo ngokufanele.Amaza amaza e-TX ne-RX ayafana, womabili angama-1310nm.
I-dual-fiber transceiver (esithombeni ipheya, uziro eyodwa)
Njengamanje, imikhiqizo evamile ye-single-fiber emakethe.Endabeni yamakhono okudlulisela afanayo, ama-transceivers e-fiber eyodwa "asindisa izindleko zefayibha eyodwa" ngokusobala athandwa kakhulu.

Imodi eyodwa kanye ne-Multimode
Umehluko phakathi kwe-single-mode optical fiber transceivers kanye ne-multi-mode optical fiber transceivers ilula, okungukuthi, umehluko phakathi kwe-fiber optical yemodi eyodwa kanye ne-multi-mode optical fiber.
I-diameter eyinhloko ye-fiber yemodi eyodwa incane (imodi eyodwa kuphela yokukhanya evunyelwe ukusabalalisa), ukuhlakazeka kuncane, futhi kuphambene nokuphazanyiswa.Ibanga lokudlulisela liphakeme kakhulu kunalelo le-multi-mode fiber, engafinyelela ngaphezu kwamakhilomitha angu-20 noma amakhulu amakhilomitha.Ngokuvamile isetshenziswa phakathi kwamakhilomitha angu-2.
Lokho kungenxa yokuthi ububanzi obuyinhloko be-fiber yemodi eyodwa buncane, i-beam kunzima ukuyilawula, futhi i-laser ebiza kakhulu iyadingeka njengomthombo wokukhanya (i-multi-mode fiber ngokuvamile isebenzisa umthombo wokukhanya we-LED), ngakho intengo ephakeme kunaleyo ye-multi-mode fiber, ebiza kakhulu.
Njengamanje, kunemikhiqizo eminingi ye-transceiver yemodi eyodwa emakethe.Izinhlelo zokusebenza zesikhungo sedatha yemodi eminingi ziningi, okokusebenza okubalulekile emishinini eyinhloko, ukuxhumana komkhawulokudonsa ohamba ibanga elifushane.
izinhlaka ezintathu ezibalulekile
1. Isivinini.Kunemikhiqizo ye-Fast ne-Gigabit etholakalayo.
2. Ibanga lokudlulisela.Kunemikhiqizo yamakhilomitha amaningana nenqwaba yamakhilomitha.Ngaphezu kwebanga phakathi kwamaphethelo amabili (ibanga lekhebula le-optical), ungakhohlwa ukubheka ibanga ukusuka echwebeni likagesi ukuya ekushintsheni.Okufushane kuba ngcono.
3. Uhlobo lwemodi yefiber.Imodi eyodwa noma imodi eminingi, i-single-fiber noma i-multi-fiber.


Isikhathi sokuthumela: Mar-17-2022