Ngokuthuthuka okuqhubekayo komkhakha wezokuxhumana kwe-optical, ubuchwepheshe obusha kanye nezixazululo zokonga izindleko ziyaqhubeka nokutholwa. Isibonelo, imikhiqizo ye-CWDM kanye ne-DWDM isetshenziswa kabanzi, ngakho-ke namuhla sizofunda ngemikhiqizo ye-CWDM kanye ne-DWDM!
I-CWDM ubuchwepheshe bokudlulisa i-WDM obungabizi kakhulu besigaba sokufinyelela senethiwekhi yendawo yedolobha. Igcina ngempumelelo izinsiza ze-fiber kanye nezindleko zokuxhumana, ixazulula izinkinga ezimbili zokuntuleka kwe-fiber kanye nokudluliselwa okusobala kwezinsizakalo eziningi. Inethiwekhi ingakhiwa futhi ibhizinisi lingenziwa ngesikhathi esifushane.
Izinzuzo ze-CWDM:
※ Inzuzo ebaluleke kakhulu ye-CWDM izindleko eziphansi zemishini.
※ Kunganciphisa izindleko zokusebenza kwenethiwekhi.
※ Kungakhulisa kakhulu amandla okudlulisa i-optical fiber futhi kuthuthukise ukusetshenziswa kwezinsiza ze-optical fiber.
※ Usayizi omncane kanye nokusetshenziswa kwamandla okuphansi.
※ Inokuguquguquka okuhle kanye nokukhula
I-DWDM ingahlanganisa futhi idlulise amaza ahlukene ku-fiber efanayo ngesikhathi esisodwa. Ukuze isebenze kahle, i-fiber eyodwa iguqulwa ibe yi-fiber eminingi ebonakalayo. I-DWDM ivame ukuba namafomu amabili okufaka isicelo: i-DWDM evulekile kanye ne-DWDM ehlanganisiwe.
Izinzuzo ze-DWDM:
※ Iphrothokholi yayo kanye nesivinini sokudlulisa akubalulekile.
※I-multiplexer kanye ne-splitter yesistimu ye-DWDM ehlanganisiwe isetshenziswa ngokwehlukana ku-transmitter kanye ne-receiver
※ Imishini ye-DWDM ehlanganisiwe inesakhiwo esilula kanye nomthamo omncane, cishe ingxenye eyodwa kwezinhlanu kuphela yesikhala esithathwe yi-DWDM evulekile, okusindisa izinsiza zegumbi lekhompyutha.
※Uhlelo lwe-DWDM oluhlanganisiwe lusebenzisa kuphela izingxenye ezingasebenzi (ezifana nama-multiplexers noma ama-demultiplexers) ezindaweni zokwamukela nokudlulisa. Abaqhubi bezokuxhumana bangafaka ama-oda ngqo kubakhiqizi bedivayisi, benciphisa izixhumanisi zokunikezela kanye nezindleko eziphansi, ngaleyo ndlela bonge izindleko zemishini.
I-CWDM kanye ne-DWDM zombili ziyi-multiplexers yokuhlukaniswa kwamagagasi, ngakho-ke uyini umehluko phakathi kwazo? I-CWDM (okungukuthi, i-sparse wavelength division multiplexing) kanye ne-DWDM (okungukuthi, i-dense wavelength division multiplexing), empeleni singabona umehluko phakathi kwalokhu okubili: “okuqinile” kanye “nokuncane”. I-Sparse Wavelength Division Multiplexing, njengoba igama lisikisela, iyisihlobo esiseduze se-Dense Wavelength Division Multiplexing.
Umehluko wabo ubonakala kakhulu kula maphuzu amathathu alandelayo:
1) Isikhala sesiteshi sokuthwala se-CWDM sibanzi kakhulu, ngakho-ke, amaza okukhanya angu-5 kuya kwangu-6 kuphela angahlanganiswa ku-fiber efanayo ye-optical, futhi umehluko phakathi kwamagama “ancane” kanye “namakhulu” uvela kulokhu;
2) I-laser eguquliwe ye-CWDM isebenzisa i-laser engapholi, kuyilapho i-DWDM isebenzisa i-laser epholisiwe. I-laser epholisiwe isebenzisa ukulungiswa kwezinga lokushisa, kanti i-laser engapholi isebenzisa ukulungiswa kwe-elekthronikhi. I-CWDM manje ithandwa kakhulu phakathi kwabahlinzeki bezinhlelo zokusebenza zebhizinisi jikelele. Kalula nje: I-DWDM iyisigaba se-CWDM.
3) Indawo yokusetshenziswa kwemishini ihlukile. I-CWDM isetshenziswa kakhulu kungqimba lokuhlangana kanye nengqimba yokufinyelela; i-DWDM isetshenziswa endaweni yokusebenza yokuxhumana kwesitimela.
Isikhathi sokuthunyelwe: Julayi-03-2021