SONET (Synchronous Optical Network)
SONET ndi njira yotumizira ma network othamanga kwambiri ku United States. Amagwiritsa ntchito fiber optical ngati njira yotumizira mauthenga a digito mu mphete kapena malo-to-point. Pachimake chake, imagwirizanitsa kayendedwe ka chidziwitso kotero kuti zizindikiro zochokera kumadera osiyanasiyana zitha kuchulukitsidwa popanda kuchedwa panjira yothamanga kwambiri. SONET imayimiridwa ndi milingo ya OC (optical carrier), monga OC-3, OC-12, OC-48, etc., pomwe manambala amayimira ma multiples a unit OC-1 (51.84 Mbps). Zomangamanga za SONET zimapangidwa ndi chitetezo champhamvu komanso zodzitetezera, choncho nthawi zambiri zimagwiritsidwa ntchito pamagulu a msana.
SDH (Synchronous Digital Hierarchy)
SDH kwenikweni ndiyofanana padziko lonse lapansi ndi SONET, yomwe imagwiritsidwa ntchito makamaka ku Europe ndi madera ena omwe si a US. SDH imagwiritsa ntchito milingo ya STM (Synchronous Transport Module) kuti izindikire kuthamanga kosiyanasiyana, monga STM-1, STM-4, STM-16, etc., pomwe STM-1 ndi yofanana ndi 155.52 Mbps. SDH ndi SONET zimagwirizana muzinthu zambiri zamakono, koma SDH imapereka kusinthasintha, monga kulola zizindikiro kuchokera kuzinthu zosiyanasiyana kuti zikhale zosavuta kuphatikizidwira mumtundu umodzi wa kuwala.
DWDM (Dense Wavelength Division Multiplexing)
DWDM ndi ukadaulo wa fiber optic network transmission ukadaulo womwe umakulitsa bandwidth potumiza ma siginecha angapo owoneka amitundu yosiyanasiyana panthawi imodzi pamtundu womwewo. Machitidwe a DWDM amatha kunyamula zizindikiro zoposa 100 za mafunde osiyanasiyana, omwe amatha kuonedwa ngati njira yodziimira, ndipo njira iliyonse imatha kufalitsa pamitengo yosiyana ndi mitundu ya deta. Kugwiritsa ntchito kwa DWDM kumalola ogwiritsa ntchito ma network kuti awonjezere kuchuluka kwa maukonde popanda kuyika zingwe zatsopano zowoneka bwino, zomwe ndizofunikira kwambiri pamsika wautumiki wa data womwe ukukula kwambiri.
Kusiyana pakati pa atatuwo
Ngakhale matekinoloje atatuwa ali ofanana m'malingaliro, akadali osiyana pakugwiritsa ntchito kwenikweni:
Miyezo yaukadaulo: SONET ndi SDH ndizomwe zimagwirizana kwambiri ndiukadaulo. SONET imagwiritsidwa ntchito makamaka ku North America, pamene SDH imagwiritsidwa ntchito kwambiri m'madera ena. DWDM ndi ukadaulo wochulukitsa wavelength womwe umagwiritsidwa ntchito pofalitsa ma siginecha ofananira angapo m'malo motengera mawonekedwe amtundu wa data.
Chiwerengero cha deta: SONET ndi SDH zimatanthauzira zigawo zokhazikika zotumizira deta kudzera mumagulu ena kapena ma modules, pamene DWDM imayang'ana kwambiri kuonjezera chiwerengero cha kufalitsa kwa deta powonjezera njira zotumizira muzitsulo zofanana.
Kusinthasintha ndi scalability: SDH imapereka kusinthasintha kwambiri kuposa SONET, kuthandizira kuyankhulana kwapadziko lonse, pamene teknoloji ya DWDM imapereka kusinthasintha kwakukulu ndi scalability mu chiwerengero cha deta ndi kugwiritsa ntchito ma spectrum, kulola kuti intaneti ikule pamene kufunikira kukukula.
Malo ogwiritsira ntchito: SONET ndi SDH nthawi zambiri amagwiritsidwa ntchito pomanga maukonde a msana ndi chitetezo chawo ndi machitidwe odzibwezeretsa okha, pamene DWDM ndi njira yothetsera maulendo atalitali komanso otalikirapo optical network transmission, omwe amagwiritsidwa ntchito pogwirizanitsa pakati pa malo a deta kapena kudutsa sitima zapamadzi. ma cable systems, etc.
Mwachidule, SONET, SDH ndi DWDM ndi matekinoloje ofunikira pomanga maukonde amakono komanso amtsogolo olumikizirana ma fiber, ndipo ukadaulo uliwonse uli ndi mawonekedwe ake apadera ogwiritsira ntchito komanso luso laukadaulo. Posankha bwino ndikugwiritsa ntchito matekinoloje osiyanasiyanawa, ogwiritsira ntchito maukonde amatha kupanga maukonde ogwira ntchito, odalirika komanso othamanga kwambiri padziko lonse lapansi.
Tibweretsa zinthu zathu za DWDM ndi DCI BOX kuti tikakhale nawo ku Africa Tech Festival, mwatsatanetsatane motere:
Booth NO. ndi D91A,
Tsiku: Novembala 12-14, 2024.
Onjezani: Cape Town International Convention Centre (CTICC)
Ndikuyembekeza kukuwonani kumeneko!
Nthawi yotumiza: Nov-06-2024