Ngophuhliso oluqhubekayo lweshishini lonxibelelwano lwe-optical, ubuchwepheshe obutsha kunye nezisombululo zokonga iindleko ziyaqhubeka kuveliswa. Umzekelo, iimveliso ze-CWDM kunye ne-DWDM zisetyenziswa kakhulu, ngoko ke namhlanje siza kufunda ngeemveliso ze-CWDM kunye ne-DWDM!
I-CWDM yiteknoloji yokudlulisa i-WDM ebiza kancinci yokufikelela kumaleko wenethiwekhi yedolophu. Igcina ngokufanelekileyo izixhobo zefayibha kunye neendleko zokunxibelelana, isombulula iingxaki ezimbini zokunqongophala kwefayibha kunye nokudluliselwa okucacileyo kweenkonzo ezininzi. Inethiwekhi inokwakhiwa kwaye ishishini linokwenziwa ngexesha elifutshane.
Iingenelo ze-CWDM:
※ Eyona nzuzo ibalulekileyo ye-CWDM lixabiso eliphantsi lezixhobo.
※ Inganciphisa iindleko zokusebenza kwenethiwekhi.
※ Inganyusa kakhulu amandla okudlulisela i-optical fiber kwaye iphucule ukusetyenziswa kwezixhobo ze-optical fiber.
※ Ubungakanani obuncinci kunye nokusetyenziswa kwamandla okuphantsi.
※ Iyakwazi ukuguquguquka nokukhula kakuhle
I-DWDM inokudibanisa kwaye idlulise ubude beewavelength ezahlukeneyo kwifayibha enye ngaxeshanye. Ukuze isebenze kakuhle, ifayibha enye iguqulwa ibe ziifayibha ezininzi ezibonakalayo. I-DWDM idla ngokuba neefom ezimbini zokusetyenziswa: i-DWDM evulekileyo kunye ne-DWDM edibeneyo.
Iingenelo ze-DWDM:
※ Iprotokholi yayo kunye nesantya sokudlulisela azibalulekanga.
※I-multiplexer kunye ne-splitter yenkqubo ye-DWDM edibeneyo zisetyenziswa ngokwahlukeneyo kwi-transmitter nakwi-receiver
※ Izixhobo ze-DWDM ezidityanisiweyo zinesakhiwo esilula kunye nomthamo omncinci, malunga nesinye kwisihlanu sendawo esetyenziswa yi-DWDM evulekileyo, nto leyo egcina izixhobo zegumbi leekhompyutha.
※Inkqubo ye-DWDM edibeneyo isebenzisa kuphela izinto ezingasebenziyo (ezifana nee-multiplexers okanye ii-demultiplexers) kwiindawo zokwamkela nezokudlulisa. Abaqhubi be-Telecom banokubeka ii-odolo ngqo kubavelisi bezixhobo, benciphisa iikhonkco zokubonelela kunye neendleko eziphantsi, ngaloo ndlela besonga iindleko zezixhobo.
I-CWDM kunye ne-DWDM zombini zii-multiplexers ze-wavelength division, ngoko ke yintoni umahluko phakathi kwazo? I-CWDM (oko kukuthi, i-sparse wavelength division multiplexing) kunye ne-DWDM (oko kukuthi, i-dense wavelength division multiplexing), ngokoqobo singabona umahluko phakathi kwezi zimbini: "dense" kunye "sparse". I-Sparse Wavelength Division Multiplexing, njengoko igama lisitsho, sisihlobo esisondeleyo se-Dense Wavelength Division Multiplexing.
Umahluko wabo ubonakala kakhulu kula manqaku mathathu alandelayo:
1) Isithuba setshaneli yokuthwala i-CWDM sibanzi kakhulu, ngoko ke, zii-wavelengths ezi-5 ukuya kwezi-6 kuphela zamaza okukhanya ezinokuphindaphindwa kwi-optical fiber efanayo, kwaye umahluko phakathi kwamagama “ancinci” kunye “namakhulu” uvela koku;
2) I-laser eguquliweyo ye-CWDM isebenzisa i-laser engapholiyo, ngelixa i-DWDM isebenzisa i-laser epholisiweyo. I-laser epholisiweyo isebenzisa ukulungiswa kobushushu, kwaye i-laser engapholiyo isebenzisa ukulungiswa kwe-elektroniki. I-CWDM ngoku ithandwa kakhulu ngababoneleli bezicelo zeshishini ngokubanzi. Ngamafutshane: I-DWDM luluhlu lwe-CWDM.
3) Indawo yokusetyenziswa kwezixhobo yahlukile. I-CWDM isetyenziswa kakhulu kumaleko wokudibana kunye nomaleko wokufikelela; i-DWDM isetyenziswa kwindawo yokusebenza yonxibelelwano lukaloliwe.
Ixesha lokuthumela: Julayi-03-2021