I-SONET (Inethiwekhi Yokuvumelanisa Yokubona)
I-SONET iyindinganiso yokudlulisa inethiwekhi enesivinini esikhulu e-United States. Isebenzisa i-optical fiber njengendlela yokudlulisela ukudlulisa ulwazi lwedijithali ngendandatho noma isakhiwo sokukhomba-kuya-iphuzu. Emgogodleni wayo, ivumelanisa ukugeleza kolwazi ukuze amasiginali avela emithonjeni ehlukene akwazi ukuphindwaphindwa ngaphandle kokulibala endleleni yesiginali evamile enesivinini esikhulu. I-SONET imelwe amaleveli e-OC (inkampani yenethiwekhi ebonakalayo), njenge-OC-3, OC-12, OC-48, njll., lapho izinombolo zimele ukuphindaphinda kweyunithi eyisisekelo OC-1 (51.84 Mbps). Izakhiwo ze-SONET zenzelwe ukuvikela okuqinile namandla okuzibuyisela, ngakho-ke kuvame ukusetshenziswa kumanethiwekhi omgogodla.
I-SDH (I-Synchronous Digital Hierarchy)
I-SDH ngokuyisisekelo ilingana namazwe ngamazwe we-SONET, esetshenziswa kakhulu e-Europe nakwezinye izindawo okungezona ezase-US. I-SDH isebenzisa amaleveli e-STM (Synchronous Transport Module) ukuze ikhombe izivinini ezihlukene zokudlulisela, njenge-STM-1, STM-4, STM-16, njll., lapho i-STM-1 ilingana no-155.52 Mbps. I-SDH ne-SONET ziyasebenzisana emininingwaneni eminingi yobuchwepheshe, kodwa i-SDH inikeza ukuguquguquka okwengeziwe, njengokuvumela amasiginali avela emithonjeni eminingi ehlukene ukuthi ahlanganiswe kalula ku-fiber optical eyodwa.
I-DWDM (I-Dense Wavelength Division Multiplexing)
I-DWDM iwubuchwepheshe bokudlulisa inethiwekhi ye-fiber optic okwandisa umkhawulokudonsa ngokudlulisa amasignali amaningi okukhanya amaza ahlukene ngesikhathi esisodwa ku-fiber optical efanayo. Izinhlelo ze-DWDM zingathwala amasiginali angaphezu kwe-100 amaza ahlukene, ngalinye elingabhekwa njengesiteshi esizimele, futhi isiteshi ngasinye singadlulisela ngamanani ahlukene kanye nezinhlobo zedatha. Ukusetshenziswa kwe-DWDM kuvumela opharetha benethiwekhi ukuthi bakhulise ngokuphawulekayo umthamo wenethiwekhi ngaphandle kokubeka izintambo ezintsha ze-optical, ezibaluleke kakhulu emakethe yesevisi yedatha ngokukhula okukhulu kwesidingo.
Umehluko phakathi kokuthathu
Yize lobu buchwepheshe obuthathu bufana ngomqondo, busahlukile ekusebenzeni kwangempela:
Izindinganiso zobuchwepheshe: I-SONET ne-SDH ngokuyinhloko izindinganiso zobuchwepheshe ezimbili ezihambisanayo. I-SONET isetshenziswa kakhulu eNyakatho Melika, kanti i-SDH isetshenziswa kakhulu kwezinye izifunda. I-DWDM iwubuchwepheshe be-wavelength multiplexing obusetshenziselwa ukudlulisa amasiginali afanayo amaningi kunamazinga efomethi yedatha.
Izinga ledatha: I-SONET ne-SDH ichaza amasegimenti esilinganiso esinqunyiwe sokudluliswa kwedatha ngamaleveli athile noma amamojula, kuyilapho i-DWDM igxile kakhulu ekwandiseni izinga lokudluliswa kwedatha lilonke ngokungeza iziteshi zokudlulisela ku-fiber optical efanayo.
Ukuguquguquka nokunwebeka: I-SDH inikeza ukuguquguquka okwengeziwe kune-SONET, yenza kube lula ukuxhumana kwamazwe ngamazwe, kuyilapho ubuchwepheshe be-DWDM buhlinzeka ngokuguquguquka okukhulu kanye nokulinganisa ngenani ledatha kanye nokusetshenziswa kwe-spectrum, okuvumela inethiwekhi ukuthi ikhule njengoba isidingo sikhula.
Izindawo zokufaka isicelo: I-SONET ne-SDH zivame ukusetshenziselwa ukwakha amanethiwekhi omgogodla kanye nezinhlelo zabo zokuvikela nokuzibuyisela, kuyilapho i-DWDM iyisixazululo sokudluliswa kwenethiwekhi ye-optical yebanga elide kanye nebanga elide, esetshenziselwa ukuxhumana phakathi kwezikhungo zedatha noma kuwo wonke umkhumbi-ngwenya. amasistimu wekhebula, njll.
Kafushane, i-SONET, i-SDH ne-DWDM ubuchwepheshe obuyinhloko bokwakha amanethiwekhi okuxhumana e-fiber optical yanamuhla neyesikhathi esizayo, futhi ubuchwepheshe obunye bunezimo zabo zokusebenza ezihlukile kanye nezinzuzo zobuchwepheshe. Ngokukhetha kahle nokusebenzisa lobu buchwepheshe obuhlukene, opharetha benethiwekhi bangakha amanethiwekhi okudlulisa idatha asebenza kahle, athembekile futhi anesivinini esiphezulu emhlabeni jikelele.
Sizoletha imikhiqizo yethu ye-DWDM kanye ne-DCI BOX ukuze sihambele i-Africa Tech Festival, imininingwane ngale ndlela elandelayo:
I-Booth NO. i-D91A,
Idethi:Novemba 12-14, 2024.
Engeza:Cape Town International Convention Centre(CTICC)
Ngiyethemba ukukubona lapho!
Isikhathi sokuthumela: Nov-06-2024