Kusiyana pakati pa CWDM ndi DWDM

Ndi chitukuko chosalekeza cha makampani olankhulana owoneka bwino, matekinoloje atsopano ndi njira zopulumutsira ndalama zikupitirizabe kupeza.Mwachitsanzo, mankhwala a CWDM ndi DWDM akugwiritsidwa ntchito kwambiri, kotero lero tiphunzira za CWDM ndi DWDM mankhwala!

CWDM ndi ukadaulo wotsika mtengo wa WDM wofikira pa netiweki ya metropolitan area.Kupulumutsa bwino chuma cha fiber ndi mtengo wapaintaneti, kumathetsa mavuto awiri a kusowa kwa fiber komanso kufalikira kwa mautumiki angapo.Netiweki imatha kumangidwa ndipo bizinesiyo imatha kuchitika munthawi yochepa.

Ubwino wa CWDM:

※ Ubwino wofunikira wa CWDM ndi mtengo wotsika wa zida.

※ Ikhoza kuchepetsa mtengo wogwiritsira ntchito intaneti.

※ Ikhoza kuonjezera kwambiri mphamvu yotumizira ya optical fiber ndikuwongolera kagwiritsidwe ntchito kazinthu zamagetsi.

※ Kukula kochepa komanso kugwiritsa ntchito mphamvu zochepa.

※ Ali ndi kusinthasintha kwabwino komanso scalability

DWDM imatha kuphatikiza ndi kufalitsa mafunde osiyanasiyana mu ulusi womwewo panthawi imodzi.Kuti ukhale wogwira mtima, ulusi umodzi umasinthidwa kukhala ulusi wambiri.DWDM nthawi zambiri imakhala ndi mafomu awiri ofunsira: DWDM yotseguka ndi DWDM yophatikizika.

Ubwino wa DWDM:

※ Protocol ndi liwiro lake lotumizira ndizosafunikira.

※ The multiplexer ndi splitter ya Integrated DWDM system amagwiritsidwa ntchito mosiyana pa transmitter ndi receiver

※ Zida zophatikizika za DWDM zili ndi mawonekedwe osavuta komanso voliyumu yaying'ono, pafupifupi gawo limodzi mwa magawo asanu a malo omwe DWDM yotseguka, kupulumutsa zida zamakompyuta.

※ Dongosolo lophatikizika la DWDM limangogwiritsa ntchito zida zongogwira (monga ma multiplexers kapena demultiplexers) pakulandila ndi kutumizira malekezero.Ogwiritsa ntchito ma telecom amatha kuyitanitsa mwachindunji kuchokera kwa opanga zida, kuchepetsa maulalo ogulitsa ndi kutsika mtengo, potero kupulumutsa ndalama za zida.

CWDM ndi DWDM onse ndi magawo ochulukitsa a wavelength, ndiye pali kusiyana kotani pakati pawo?CWDM (ie, sparse wavelength division multiplexing) ndi DWDM (ie, dense wavelength division multiplexing), kwenikweni tingathe kuona kusiyana pakati pa ziwirizi: "dense" ndi "sparse".Sparse Wavelength Division Multiplexing, monga momwe dzinalo likusonyezera, ndi wachibale wa Dense Wavelength Division Multiplexing. 

Kusiyana kwawo kumawonekera makamaka mu mfundo zitatu izi:

1) CWDM chonyamulira chapatali ndi lalikulu kwambiri, choncho, kokha 5 kwa 6 wavelengths wa mafunde kuwala akhoza multiplex pa ulusi wa kuwala chomwecho, ndipo kusiyana pakati pa mayina "ochepa" ndi "wandiweyani" amachokera izi;

2) CWDM modulated laser imagwiritsa ntchito laser yosasungunuka, pamene DWDM imagwiritsa ntchito laser yokhazikika.Laser yoziziritsa imagwiritsa ntchito kukonza kutentha, ndipo laser yosakhazikika imagwiritsa ntchito kukonza kwamagetsi.CWDM tsopano ndiyotchuka kwambiri pakati pa omwe amapereka ntchito zamabizinesi.Mwachidule: DWDM ndi gawo la CWDM.

3) Malo ogwiritsira ntchito zida ndi osiyana.CWDM imagwiritsidwa ntchito makamaka pagawo la convergence ndi gawo lofikira;DWDM imagwiritsidwa ntchito polumikizana ndi njanji.