I-ONU yinto esiyibiza ngokuba yi-"light cat", ukukhanya okuphantsi kwe-ONU kubhekisa kwinto yokuba amandla okukhanya afunyanwa yi-ONU angaphantsi kobukhali bokwamkela be-ONU. Ubukhali bokwamkela be-ONU bubhekisa kubukhali bokukhanya obuncinci obunokufumaneka yi-ONU ngexesha lokusebenza okuqhelekileyo. Ngokwesiqhelo, isalathisi sobukhali bokwamkela se-home broadband ONU yi--27dBm; ngoko ke, amandla okukhanya afumana i-ONU angaphantsi kwe--27dBm ngokubanzi achazwa njengokukhanya obuthathaka kwe-ONU.
I-ONU yinto esiyibiza ngokuba yi-"light cat", ukukhanya okuphantsi kwe-ONU kubhekisa kwinto yokuba amandla okukhanya afunyanwa yi-ONU angaphantsi kobukhali bokwamkela be-ONU. Ubukhali bokwamkela be-ONU bubhekisa kubukhali bokukhanya obuncinci obunokufumaneka yi-ONU ngexesha lokusebenza okuqhelekileyo. Ngokwesiqhelo, isalathisi sobukhali bokwamkela se-home broadband ONU yi--27dBm; ngoko ke, amandla okukhanya afumana i-ONU angaphantsi kwe--27dBm ngokubanzi achazwa njengokukhanya obuthathaka kwe-ONU.
Zininzi izinto ezichaphazela amava omsebenzisi kwi-intanethi. Ukukhanya okuphantsi kwe-ONU kuchaphazela kakhulu isantya senethiwekhi. Ukuze kuvavanywe impembelelo yokukhanya okubuthathaka kwe-ONU kwisantya senethiwekhi yomsebenzisi, uLaodington wakha le modeli yovavanyo ilandelayo.
Qhagamshela i-attenuator ehlengahlengiswayo kunye ne-PON optical power meter ngokulandelelana phakathi kwentambo yesikhumba kunye ne-ONU, ukuze i-PON optical power meter isetyenziswe ukulinganisa amandla e-optical afunyenweyo e-ONU (amandla e-optical asezantsi ovavanyo). Umahluko phakathi kwamandla e-optical afunyenweyo e-ONU malunga ne-0.3dB (i-1 fiber jumper ngaphandle kokunciphisa uqhagamshelo olusebenzayo). Indawo yovavanyo yokwenyani inje.
Ngokulungisa ukuncitshiswa kwe-attenuator ehlengahlengiswayo, ukuncitshiswa kwekhonkco le-ODN kunokwandiswa, kwaye amandla okukhanya afunyenweyo e-ONU anokutshintshwa. Utshintsho lwesantya senethiwekhi luvavanywa ngokudibanisa ilaptop kwi-ONU ngentambo yenethiwekhi. Le ndlela isetyenziselwa ukuvavanya i-broadband ye-300M yaseLaodingtoujia, kwaye iziphumo zovavanyo zezi zilandelayo.
Uvakalelo lokwenyani lokufumana uninzi lwee-ONU lungcono kune-index malunga ne-1.0dB. Umzekelo, ii-ONU kolu vavanyo zisenokusebenza ngokuqhelekileyo xa amandla okukhanya afumanayo ephezulu kune--27.98dBm. Xa amandla okukhanya afunyenweyo ephantsi kune--27.98dBm, isantya senethiwekhi ye-downlink siyehla ngokukhawuleza ngokuncipha kwamandla okukhanya afunyenweyo, kwaye sigcina isantya senethiwekhi esiphantsi kakhulu ngaphakathi koluhlu oluthile lwamandla okukhanya de inethiwekhi iphazamiseke ngokupheleleyo.
Ixesha lokuthumela: Matshi-21-2022