Kusiyana pakati pa CWDM ndi DWDM

Ndi chitukuko chopitilira cha makampani olumikizirana ndi kuwala, ukadaulo watsopano ndi njira zochepetsera ndalama zikupitilirabe kupezeka. Mwachitsanzo, zinthu za CWDM ndi DWDM zikugwiritsidwa ntchito kwambiri, kotero lero tiphunzira za zinthu za CWDM ndi DWDM!

CWDM ndi ukadaulo wotsika mtengo wotumizira ma WDM wolumikizira netiweki ya m'mizinda. Kusunga bwino chuma cha ulusi ndi ndalama zolumikizirana, kumathetsa mavuto awiri a kusowa kwa ulusi ndi kutumiza mautumiki osiyanasiyana mowonekera. Netiwekiyo imatha kumangidwa ndipo bizinesiyo ikhoza kuchitika nthawi yochepa.

Ubwino wa CWDM:

※ Ubwino waukulu wa CWDM ndi mtengo wotsika wa zida.

※ Zingachepetse ndalama zogwirira ntchito pa netiweki.

※ Ikhoza kuwonjezera kwambiri mphamvu yotumizira ma fiber optical ndikuwonjezera kugwiritsa ntchito zinthu za fiber optical.

※ Kapangidwe kakang'ono komanso kugwiritsa ntchito mphamvu zochepa.

※ Ali ndi kusinthasintha kwabwino komanso kukula bwino

DWDM imatha kuphatikiza ndikutumiza ma wavelength osiyanasiyana mu ulusi womwewo nthawi imodzi. Kuti ikhale yogwira ntchito, ulusi umodzi umasinthidwa kukhala ulusi wambiri. DWDM nthawi zambiri imakhala ndi mitundu iwiri yogwiritsira ntchito: DWDM yotseguka ndi DWDM yolumikizidwa.

Ubwino wa DWDM:

※ Ndondomeko yake ndi liwiro la kutumiza sizikugwirizana.

※Chojambulira ndi chogawaniza cha dongosolo lolumikizidwa la DWDM chimagwiritsidwa ntchito padera pa chotumizira ndi cholandirira

※ Zipangizo za DWDM zolumikizidwa zili ndi kapangidwe kosavuta komanso kamene kali kochepa, pafupifupi gawo limodzi mwa magawo asanu okha a malo omwe DWDM yotseguka imakhala, zomwe zimapulumutsa zipangizo za m'chipinda cha makompyuta.

※Dongosolo lolumikizidwa la DWDM limagwiritsa ntchito zida zongogwiritsa ntchito (monga ma multiplexers kapena ma demultiplexers) polandira ndi kutumiza. Ogwira ntchito pa telefoni amatha kuyitanitsa mwachindunji kuchokera kwa opanga zida, kuchepetsa maulalo operekera ndi kuchepetsa ndalama, motero kusunga ndalama zogulira zida.

CWDM ndi DWDM zonse ndi ma multiplexers a wavelength division, ndiye kusiyana kwake ndi kotani? CWDM (monga, sparse wavelength division multiplexing) ndi DWDM (monga, dense wavelength division multiplexing), kwenikweni tingathe kuona kusiyana pakati pa ziwirizi: "dense" ndi "sparse". Sparse Wavelength Division Multiplexing, monga momwe dzinalo likusonyezera, ndi wachibale wapafupi wa Dense Wavelength Division Multiplexing. 

Kusiyana kwawo kumawonekera makamaka m'mfundo zitatu izi:

1) Kutalikirana kwa njira zonyamulira za CWDM ndi kwakukulu, chifukwa chake, mafunde a kuwala a mafunde 5 mpaka 6 okha ndi omwe angachulukitsidwe pa ulusi womwewo, ndipo kusiyana pakati pa mayina "ochepa" ndi "okhuthala" kumachokera ku izi;

2) Laser yosinthidwa ya CWDM imagwiritsa ntchito laser yosazizira, pomwe DWDM imagwiritsa ntchito laser yoziziritsidwa. Laser yoziziritsidwa imagwiritsa ntchito kusintha kutentha, ndipo laser yosazizira imagwiritsa ntchito kusintha kwamagetsi. CWDM tsopano ndi yotchuka kwambiri pakati pa opereka mapulogalamu ambiri amakampani. Mwachidule: DWDM ndi gawo la CWDM.

3) Malo ogwiritsira ntchito zida ndi osiyana. CWDM imagwiritsidwa ntchito makamaka mu gawo lolumikizana ndi gawo lolowera; DWDM imagwiritsidwa ntchito mu malo ogwirira ntchito olumikizirana ndi njanji.