Yintoni umahluko phakathi kwe-CWDM kunye ne-DWDM Optical Transceiver?

2024-06-19

I-CWDM (i-Coarse Wavelength Division Multiplexing) kunye ne-DWDM (i-Dense Wavelength Division Multiplexing) zombini ziiteknoloji ezisetyenziswa kwinethiwekhi ye-optical ukwandisa amandla eekhonkco ze-fiber optic ngokuvumela iitshaneli ezininzi (iisignali) ukuba zidluliselwe ngaxeshanye phezu kwefayibha efanayo kodwa kwiiwavelength ezahlukeneyo zokukhanya. Nazi umahluko ophambili phakathi kwe-CWDM kunye ne-DWDM optical transceivers:

Yintoni umahluko phakathi kwe-CWDM kunye ne-DWDM Optical Transceiver.jpg

Isithuba sobude bamaza:

I-CWDM: Iitshaneli zibekwe kwindawo enye ngeenanometers ezingama-20 (nm). Ngokwesiqhelo, i-CWDM isebenzisa ubude be-wavelengths ukusuka kwi-1270 nm ukuya kwi-1610 nm, kunye neetshaneli ezili-18 zizonke kwi-spectrum.
I-DWDM: Iitshaneli zisondelelene kakhulu, ngesiqhelo yi-0.8 nm (igridi ye-100 GHz) okanye i-0.4 nm (igridi ye-50 GHz). Oku kuvumela iinkqubo ze-DWDM ukuba zixhase iitshaneli ezininzi ngaphakathi koluhlu olufanayo lwe-spectral.

Inani leetshaneli:

I-CWDM: Ixhasa inani elincinci leetshaneli, ngesiqhelo ukuya kuthi ga kwiitshaneli ezili-18.
I-DWDM: Ixhasa inani elikhulu leetshaneli, ezinokuthi zifikelele kwiitshaneli ezingama-80 nangaphezulu kwi-C-band (1530-1565 nm) okanye nangaphezulu nge-C-band eyandisiweyo kunye ne-L-band.

Umgama woThumelo:

I-CWDM: Isetyenziswa rhoqo kumgama omfutshane, ukuya kuthi ga kwi-80 km ngaphandle kokwandiswa, kunye ukuya kuthi ga kwi-120 km kunye nokwandiswa kwe-optical.
I-DWDM: Yenzelwe umgama omde, ukusuka kwi-100 km ukuya kwi-4000 km nangaphezulu kuxhomekeke kuhlobo lokukhulisa kunye nokuhlawula ukusasazeka okusetyenzisiweyo.

Uzinzo lweSiteshi:

I-CWDM: Iitshaneli zibekwe kwiindawo ezininzi, nto leyo eyenza zingaphazanyiswa kakhulu kodwa ikwanciphisa inani leetshaneli ezikhoyo.
I-DWDM: Iitshaneli zixinene kakhulu, nto leyo efuna ulawulo oluchanekileyo lwee-wavelengths kunye nezinto ezikumgangatho ophezulu ukuthintela ukuphazamiseka phakathi kweetshaneli ezikufutshane.

Ixabiso:

I-CWDM: Ngokubanzi ixabisa kancinci kune-DWDM ngenxa yoyilo lwe-transceiver olulula kunye neetshaneli ezimbalwa.
I-DWDM: Ixabiso lokuqala liphezulu ngenxa yoyilo oluntsonkothileyo lwe-transceiver kunye nesidingo sezinto ezichanekileyo ze-optical kunye neendlela zokuzinzisa.

Ukuguquguquka:

I-CWDM: Kulula ukuyisebenzisa kwiinethiwekhi ezincinci ukuya kweziphakathi apho kufuneka khona ubude be-wavelengths ezimbalwa, kwaye apho iindleko zinokuba yingxaki.
I-DWDM: Ibonelela ngokwandiswa okukhulu kunye nomthamo, okwenza ifaneleke kwiinethiwekhi ezinkulu kunye nokudluliselwa komgama omde apho ukusetyenziswa kakhulu kwe-fiber bandwidth kubalulekile.

Ngamafutshane, ukhetho phakathi kwee-transceivers ze-CWDM kunye ne-DWDM optical luxhomekeke kwizinto ezifana nomthamo ofunekayo, umgama wokudlulisela, ukuqwalaselwa kweendleko, kunye neemfuno ezithile zesiseko senethiwekhi. I-CWDM ilula kwaye ixabisa kancinci kwimigama emifutshane nakwiinethiwekhi ezincinci, ngelixa i-DWDM inika umthamo ophezulu, ukufikelela ixesha elide, kunye nokukhula kwizicelo ezinkulu nezifuna amandla amaninzi.

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