I-ONU yinto esiyibiza ngokuqhelekileyo ngokuthi "ikati yokukhanya", ukukhanya okuphantsi kwe-ONU kubhekisela kwinto yokuba amandla okukhanya afunyenwe yi-ONU angaphantsi kokufumana uvakalelo lwe-ONU.Ukufumana uvakalelo lwe-ONU lubhekisela kumandla amancinci optical ukuba i-ONU ingayifumana ngexesha lokusebenza okuqhelekileyo.Ngokuqhelekileyo, isalathisi esifumanayo se-sensitivity ye-intanethi ye-ONU yasekhaya yi -27dBm;ngoko ke, i-ONU ifumana amandla optical angaphantsi kune -27dBm ngokubanzi ichazwa njengokukhanya okubuthathaka kwe-ONU.
I-ONU yinto esiyibiza ngokuqhelekileyo ngokuthi "ikati yokukhanya", ukukhanya okuphantsi kwe-ONU kubhekisela kwinto yokuba amandla okukhanya afunyenwe yi-ONU angaphantsi kokufumana uvakalelo lwe-ONU.Ukufumana uvakalelo lwe-ONU lubhekisela kumandla amancinci optical ukuba i-ONU ingayifumana ngexesha lokusebenza okuqhelekileyo.Ngokuqhelekileyo, isalathisi esifumanayo se-sensitivity ye-intanethi ye-ONU yasekhaya yi -27dBm;ngoko ke, i-ONU ifumana amandla optical angaphantsi kune -27dBm ngokubanzi ichazwa njengokukhanya okubuthathaka kwe-ONU.
Kukho izinto ezininzi ezichaphazela amava omsebenzisi kwi-intanethi.Ukukhanya okuphantsi kwe-ONU kuchaphazela kakhulu isantya sothungelwano.Ukuze kuvavanywe impembelelo ye-ONU ukukhanya obuthathaka kwisantya somsebenzisi womnatha, iLaodingtou yakha le modeli yovavanyo ilandelayo.
Xhuma i-attenuator ehlengahlengiswayo kunye ne-PON imitha yamandla optical kuchungechunge phakathi kwentambo yesikhumba kunye ne-ONU, ukwenzela ukuba i-PON imitha yamandla optical ingasetyenziselwa ukulinganisa amandla optical afunyenweyo e-ONU (amandla optical asezantsi ovavanyo).Umahluko phakathi kwamandla optical afunyenweyo we-ONU malunga ne-0.3dB (i-fiber jumper ye-1 ikhupha i-attenuation yoxhumo olusebenzayo).Indawo yovavanyo yokwenyani inje.
Ngokulungelelanisa ukunyanzeliswa kwe-attenuator ehlengahlengiswayo, ukunyanzeliswa kwekhonkco ye-ODN kunokunyuswa, kwaye amandla optical afunyenweyo we-ONU angatshintshwa.Utshintsho lwesantya sothungelwano luvavanywa ngokuqhagamshela ilaptop kwi-ONU ngentambo yenethiwekhi.Le ndlela isetyenziselwa ukuvavanya i-broadband ye-300M yaseLaodingtoujia, kwaye iziphumo zovavanyo zilandelayo.
Olona lwazi lufumanayo kwii-ONU ezininzi lungcono kunesalathiso malunga ne-1.0dB.Ngokomzekelo, ii-ONU kolu vavanyo zisengasebenza ngokuqhelekileyo xa amandla optical afumanayo aphezulu kune -27.98dBm.Xa amandla optical afunyenweyo aphantsi kune -27.98dBm, isantya senethiwekhi ye-downlink sihla ngokukhawuleza kunye nokunciphisa amandla okukhanya afunyenweyo, kwaye igcina isantya senethiwekhi ephantsi kakhulu ngaphakathi kwinqanaba elithile lamandla optical de inethiwekhi iphazamiseke ngokupheleleyo.
Ixesha lokuposa: Mar-21-2022