SONET: cibiyar sadarwa mai aiki tare, daidaitaccen watsa dijital, an gabatar da shi a cikin Amurka a cikin 1988. Siginar lantarki na matakin 1 ana nuna shi azaman STS-1, kuma siginar gani na matakin 1 ana kiranta da OC-1, tare da ƙimar 51.84Mb. / s.A kan wannan, haɓakawa ta hanyar ɗimbin yawa don haɓaka saurin watsawa da ingantaccen watsawa.Daga baya, ITU-T ta kafa ƙa'idar SDH ta duniya ta haɗin kai bisa wannan ma'auni, don haka ana iya ɗaukar SONET a matsayin wani ɓangare na ma'aunin SDH.
SONET tana ayyana Layer interface na gani guda huɗu, daga sama zuwa ƙasa shine:
1. Layer na photon (Photonic Layer) yana aiwatar da watsa bit a cikin kebul na gani, kuma yana da alhakin juyawa tsakanin siginar lantarki na watsawar aiki tare (STS) da siginar gani na mai ɗaukar hoto (OC).Ana gudanar da sadarwa ta hanyar masu canza wutar lantarki a cikin wannan Layer.
2. Sashe Layer (Sashe Layer) yana watsa firam ɗin STS-N akan kebul na gani.Yana da aikin ƙira da gano kuskure
Yadudduka biyun da ke sama sun zama dole, amma yadudduka biyu masu zuwa zaɓi ne.
3. Layin layi (Layin Layi) yana da alhakin aiki tare da Layer Layer da yawa, da kariya ta atomatik na musayar.
4. Hanya Layer (Path Layer) yana hulɗar da watsa shirye-shirye tsakanin na'urorin tashar tashar PTE (Path Terminating Element), A wannan PTE shine sauyawa tare da damar SONET.Har ila yau, layin hanyar yana da hanyar sadarwa zuwa cibiyoyin sadarwa marasa SONET.
Ana iya ganin waɗannan nau'ikan guda huɗu a zahiri azaman yanki na Layer na zahiri a cikin ƙirar Layer OSI 7, saboda duk matakan huɗun suna cikin Layer physics OSI.
SONET Wurin da aka saba amfani da shi shine ƙayyadadden ƙimar watsawa:
OC-1 - 51.84Mbit/s
OC-3 - 155.52 Mbit/s
OC-12 - 622.08 Mbit/s
OC-24 - 1.244 Gbit/s
OC-48 - 2.488 Gbit/s
OC-96 - 4.976 Gbit/s
OC-192 - 9.953 Gbit/s
OC-256 — kusan 13 Gbit/s
OC-384 - kusan 20 Gbit/s
OC-768 - kusan 40 Gbit/s
OC-1536 - kusan 80 Gbit/s
OC-3072 - kusan 160 Gbit/s
Muna magana ne game da synchronous fiber cibiyoyin sadarwa, da general gabatarwar ne a sama abun ciki.Ga related Tantancewar fiber cibiyar sadarwa kayan aiki da hannu a Shenzhen HDV Photoelctron Technology Co., Ltd., kamar: AC.ONU/SaduwaONU/ Mai hankaliONU/ Fiber na ganiONU/ XPONONU/ GPONONU, ko OLT jerin, transceiver jerin da sauransu.Shin nau'in kayan aikin cibiyar sadarwa ne, idan akwai buƙatar abokan ciniki, zaku iya komawa shafin gida don tuntuɓar kamfaninmu, jiran kasancewar ku.
