SONET (Nyanja Yolumikizirana Yogwirizana)
SONET ndi muyezo wotumizira maukonde othamanga kwambiri ku United States. Imagwiritsa ntchito ulusi wowala ngati njira yotumizira mauthenga kuti itumize uthenga wa digito mu mphete kapena malo olowera ku mfundo. Pakati pake, imagwirizanitsa kuyenda kwa chidziwitso kuti zizindikiro kuchokera ku magwero osiyanasiyana zitha kuchulukitsidwa nthawi yomweyo panjira yolumikizirana yothamanga kwambiri. SONET imayimiridwa ndi milingo ya OC (optical carrier), monga OC-3, OC-12, OC-48, ndi zina zotero, komwe manambalawo akuyimira ma multiples a basic unit OC-1 (51.84 Mbps). Kapangidwe ka SONET kamapangidwa ndi chitetezo champhamvu komanso kuthekera kodzibwezeretsa, kotero nthawi zambiri imagwiritsidwa ntchito m'maukonde amsana.
SDH (Utsogoleri wa Digito Wogwirizana)
SDH kwenikweni ndi ofanana ndi SONET padziko lonse lapansi, makamaka ku Europe ndi madera ena omwe si aku US. SDH imagwiritsa ntchito milingo ya STM (Synchronous Transport Module) kuti izindikire liwiro losiyana la kutumiza, monga STM-1, STM-4, STM-16, ndi zina zotero, komwe STM-1 ndi yofanana ndi 155.52 Mbps. SDH ndi SONET zimagwirira ntchito limodzi mwatsatanetsatane, koma SDH imapereka kusinthasintha kwakukulu, monga kulola zizindikiro kuchokera kuzinthu zosiyanasiyana kuti ziphatikizidwe mosavuta mu ulusi umodzi wowala.
Kuchulukitsa kwa DWDM (Dense Wavelength Division Multiplexing)
DWDM ndi ukadaulo wotumizira maukonde a fiber optic womwe umawonjezera bandwidth potumiza ma signal angapo a kuwala a ma wavelength osiyanasiyana nthawi imodzi pa fiber imodzi yowala. Makina a DWDM amatha kunyamula ma signal opitilira 100 a ma wavelength osiyanasiyana, iliyonse yomwe ingawonedwe ngati njira yodziyimira payokha, ndipo njira iliyonse imatha kutumiza pamitengo yosiyanasiyana ndi mitundu yosiyanasiyana ya deta. Kugwiritsa ntchito DWDM kumalola ogwiritsa ntchito ma network kukulitsa kwambiri mphamvu ya netiweki popanda kuyika zingwe zatsopano za kuwala, zomwe ndizofunikira kwambiri pamsika wa data service chifukwa cha kufunikira kwakukulu.
Kusiyana pakati pa atatuwa
Ngakhale kuti matekinoloje atatuwa ndi ofanana m'malingaliro, amasiyanabe momwe amagwiritsidwira ntchito:
Miyezo yaukadaulo: SONET ndi SDH ndi miyezo iwiri yogwirizana yaukadaulo. SONET imagwiritsidwa ntchito kwambiri ku North America, pomwe SDH imagwiritsidwa ntchito kwambiri m'madera ena. DWDM ndi ukadaulo wochulukitsa mafunde womwe umagwiritsidwa ntchito potumiza zizindikiro zingapo zofanana m'malo mwa miyezo ya mawonekedwe a deta.
Kuchuluka kwa deta: SONET ndi SDH zimatanthauzira magawo okhazikika a kuchuluka kwa deta kudzera m'magawo kapena ma module enaake, pomwe DWDM imayang'ana kwambiri pakuwonjezera kuchuluka kwa deta yonse powonjezera njira zotumizira mu ulusi womwewo.
Kusinthasintha ndi kukula: SDH imapereka kusinthasintha kwakukulu kuposa SONET, zomwe zimathandiza kulumikizana kwapadziko lonse lapansi, pomwe ukadaulo wa DWDM umapereka kusinthasintha kwakukulu ndi kukula kwa kuchuluka kwa deta ndi kugwiritsa ntchito sipekitiramu, zomwe zimathandiza kuti netiweki ikule pamene kufunikira kukukula.
Malo Ogwiritsira Ntchito: SONET ndi SDH nthawi zambiri amagwiritsidwa ntchito popanga maukonde a msana ndi machitidwe awo odzitetezera komanso odzibwezeretsa, pomwe DWDM ndi yankho la kutumiza maukonde a optical akutali komanso akutali kwambiri, omwe amagwiritsidwa ntchito polumikizirana pakati pa malo osungira deta kapena kudzera m'makina a chingwe cha pansi pamadzi, ndi zina zotero.
Mwachidule, SONET, SDH ndi DWDM ndi ukadaulo wofunikira kwambiri popanga maukonde olumikizirana amakono ndi amtsogolo a fiber, ndipo ukadaulo uliwonse uli ndi zochitika zake zapadera zogwiritsira ntchito komanso zabwino zake zaukadaulo. Mwa kusankha bwino ndikugwiritsa ntchito ukadaulo wosiyanasiyanawu, ogwiritsa ntchito maukonde amatha kupanga maukonde otumizira deta ogwira ntchito bwino, odalirika komanso othamanga kwambiri padziko lonse lapansi.
Tidzabweretsa zinthu zathu za DWDM ndi DCI BOX kuti tidzakhale nawo pa Chikondwerero cha Africa Tech, tsatanetsatane wake ndi motere:
NAMBALA YA BOOTH ndi D91A,
Tsiku: Novembala 12 mpaka 14, 2024.
Onjezani: Malo Ochitira Misonkhano Yapadziko Lonse ku Cape Town (CTICC)
Ndikukhulupirira kukuonani kumeneko!
Nthawi yotumizira: Novembala-06-2024