1, imodem yokukhanya luphawu olubonakalayo kwisixhobo sombane se-Ethernet, imodem ebonakalayo ibizwa ngokuba yimodem, luhlobo lwehardware yekhompyuter, ikwisiphelo sokuthumela ngokumodareyitha imiqondiso yedijithali kwimiqondiso ye-analog, kwaye ekupheleni kokufumana ukwehlisa imiqondiso ye-analog kwiisignali zedijithali isixhobo.
I-Optical Network Unit (ONU) yiyunithi yenethiwekhi yamehlo.I-ONU yahlulwe yaba ziiyunithi zothungelwano olubonakalayo olusebenzayo kunye neeyunithi zothungelwano lwe-passive optical network.I-ONU isetyenziselwa kakhulu ukufumana idatha yosasazo ethunyelwa yi-OLTs.Ukongeza kumsebenzi wekati yokukhanya, i-ONU nayo inomsebenzi wokutshintsha.
2, i-onu yahlulwe yaba yi-, b, iklasi ye-c, zontathu zilunikezelo lwamehlo, kodwa ukunika abasebenzisi ngenani lamazibuko, iintlobo zezibuko zahlukile, imodem yokukhanya eneneni yi-onu yeklasi.
Imodem ye-Optical, ekwabizwa ngokuba yi-optical cat, sisixhobo sothungelwano esithumela imiqondiso yokukhanya kwezinye iisignali zeprotocol ngokusebenzisa imidiya yefiber optical.Sisixhobo sokuhambisa i-relay kwinethiwekhi yendawo yendawo enkulu (LAN), inethiwekhi yendawo ye-metropolitan (MAN), kunye nenethiwekhi yendawo ebanzi (WAN).Isixhobo senziwe ngokuthumela, ukufumana, ukulawula, ujongano kunye nonikezelo lwamandla.Yamkela i-chip enkulu edibeneyo, isekethe elula, ukusetyenziswa kwamandla aphantsi, ukuthembeka okuphezulu, isalathisi esipheleleyo se-alarm, kunye nomsebenzi ogqibeleleyo wolawulo lwenethiwekhi.
Unxibelelwano lwefiber ye-Optical luphuhliswe ngokukhawuleza lwaba yeyona ndlela iphambili yosasazo lolwazi ngenxa yeenzuzo zalo ezinje ngebhendi yefrikhwensi ebanzi kunye nomthamo omkhulu.Ukufezekisa unxibelelwano lwamehlo, ukumodareyitha okubonakalayo kunye nokunciphisa kufuneka kwenziwe.Ke ngoko, njengesixhobo esiphambili senkqubo yonxibelelwano lwefiber optical, imodem ye-optical ifumana ingqalelo ngakumbi nangakumbi.Kukho iintlobo ezimbini zeemodyuli zamehlo: imodyuli ethe ngqo kunye nemodyuli yangaphandle, kunye ne-optical demodulator yahlulwe yaba ziindidi ezimbini: kunye nangaphandle kweamplifier eyakhelweyo ngaphambili.Imodyuli ethe ngqo kunye nedemodulator eneamplifier eyakhelweyo ngaphambili yeyona nto kugxilwe kuyo kule projekthi.Ukumodareyitha ngokuthe ngqo kuneenzuzo zokulula, uqoqosho kunye nokuphunyezwa okulula, ngelixa i-demodulator ene-amplifier eyakhelwe ngaphambili ineempawu zokudibanisa okuphezulu kunye nobukhulu obuncinci.
imodem ye-optical sisixhobo sothumelo esinokuqhagamshelwa kwi-Intanethi ngokuqhagamshelwa kwentambo yenethiwekhi, efana nekati yethu yokukhanya kwe-Intanethi, kodwa isiphelo esiphezulu sekati siqhagamshelwe kwisekethe, kunye nesiphelo esiphezulu semodemi edibeneyo. kwindlela yokukhanya, ke ibizwa ngokuba yikati ekhanyayo.Ikati edityaniswe kwindlela yokukhanya.Isiphelo esisezantsi se-onu kwi-epon/GPON iqhagamshelwe kumsebenzisi.
1, imodem yokukhanya luhlobo lwe-onu, yeyomsebenzisi omnye, imodem yokukhanya nayo kunokuthiwa yi-desktop onu.
2, i-onu ephambili yeyabasebenzisi abaninzi, oko kukuthi, i-port yombane ine-8 ukuya kwi-24 ye-pon port.Imodem ye-optical ine-1-4 izibuko zombane kuphela.
Umahluko phakathi kwemodem yokubona kunye ne-ONU:
Imodem yokukhanya isetyenziswa ngokubanzi xa abathengi abakhulu, ikakhulu ukufikelela kwiidatha ezizinikeleyo.
Uhlobo lwemodem ye-optical kunye ne-desktop, uhlobo lwekhadi ngokubanzi lubeka igumbi lomatshini.
Idesktop iqhele ukubekwa kumxhasi.I-ONU isetyenziselwa ukufikelela kwinethiwekhi yendawo yokuhlala ebanzi.Umahluko ophambili usuka kwikhadi elidityanisiweyo legumbi ikati yamehlo ukuya kumxhasi wedesktop optical cat, iperi ye akhawunti yeekati ezibonayo kwiperi yeentsinga, kwaye ukusuka kwigumbi elidityanisiweyo le OLT ukuya kumxhasi ezininzi ze ONUs zikwathatha kuphela iperi yefibre, kwaye Umbindi uhamba ngenkqubo yokwahlula.Umahluko phakathi kwemodem ye-optical kunye ne-ONU kukuba i-ONU igcina i-fiber core resources, kunye ne-optical modem inexabiso eliphantsi, kwaye iperi yeekati ezikhanyayo ngamakhulu aliqela amaqhekeza.Luluphi uhlobo lokusebenzisa, uhlalutyo olubanzi lweendleko, ngokwemeko.
Ixesha lokuposa: Dec-14-2023