Heerka ieee802.3av wuxuu qeexayaa 10g/1g (qiimaha kor u kaca 10g/heerka hoos udhaca 1g) qaabka lakabka jirka asymmetrical (hadda kadib waxaa loo tixraacaa sida 10g/1g asymmetric mode) iyo 10g/10g lakabka jirka (hadda ka dib waxaa loo tixraacaa sida 10g/10g qaab summeedka) qaabka:
Qaabka olt ee 10g/1g ee aan lamaanuhu ahayn waxa uu la jaanqaadi karaa onnu in 1g/1g modem iyo on 10g/1g asymmetric mode.OLT ee 10g/10g qaab summeedka waxay la jaanqaadi kartaa onnu qaabka 1g/1g, onnu in 10g/1g asymmetric mode, iyo on on 10g/10g asymmetric mode.
OLT ee qaabka asymmetric iyo OLT ee qaabka asymmetric waxay la mid yihiin jihada hoose ee dariiqa indhaha ee lakabka jireed, iyo kanaalka 10g wuxuu isticmaalaa 1577nm dhererka iyo 64b / 66b code code;si kasta ha ahaato in onnu ku jiro qaab summetrical ah ama qaab asymmetric ah, waxay ka heli kartaa xogta hoose ee olt.olt-ku waxa uu si xilliyo ah u baahin doonaa qaab-dhismeedka mpcpdsicoverygate (Bartakoolka kantaroolka-dhibcaha badan, borotokoolka kontoroolka-dhibcaha badan)Goobta macluumaadka laga helay qaab-dhismeedka waxa si gaar ah loo isticmaalaa in lagu ogaysiiyo awooda daaqada kor isku xidhka ah (1g, 10g, 1g+10g dual rate), iyo onnu waxa ay ku heli kartaa olt iyada oo loo marayo qaabkan shaqo ee hadda jira.
Onu ee qaabka summaynta iyo qaabka asymmetric-gu si buuxda ayay u waafaqsan yihiin lakabka Mac (xakamaynta marin-u-helidda warbaahinta, lakabka xakamaynta gelitaanka dhexdhexaadka ah), farqiga u dhexeeyana waxa uu ku urursan yahay lakabka phy (lakabka jireed, lakabka hoose ee osi), iyo Diridda cabbirada lakabka phy waxay ku xiran tahay Geli moduleka indhaha ee onu:
Marka moduleka asymmetric optical la geliyo onnu-ka (taas oo ah, onku waa onnu asymmetric), maadaama heerka kor u kaca ee moduleka asymmetric optical-ka uu yahay ilaa 1g, lakabka phy ee onnu waxa uu dejin karaa oo kaliya heerka gudbinta 1g si ay ugu shaqeeyaan qaab asymmetric ah .Marka moduleka summeysan ee isha la geliyo onnu, maadaama heerka kor u kaca ee moduleka indhaha uu yahay ilaa 10g, onuku wuxuu dejin karaa heerka dirida lakabka phy si uu ugu shaqeeyo 10g si uu ugu shaqeeyo qaab summetrical ah, ama wuxuu habayn karaa heerka dirida lakabka phy ilaa 1g si uu ugu shaqeeyo qaab asymmetric ah.
Si kastaba ha ahaatee, onnu iyo olt ee jira waxay yeelan doonaan cilladaha soo socda marka shabakada la cusboonaysiiyo:
Inta lagu jiro casriyaynta shabakada, OLT waxa laga yaabaa inay u kala beddesho qaabka summaynta iyo qaabka asymmetrical, laakiin ONU ma beddeli karto iyadoo loo eegayo beddelka OLT.Tusaale ahaan, OLT waxa ay ka beddeshaa qaab summeedka una beddesha qaab asymmetrical ah, laakiin ONU waxa ay wali ku jirtaa qaab summetrical ah.Waqtigan xaadirka ah, hababka ugu dambeeya (olt) iyo kuwa fog (onu) isma dhigmaan.Qodobbada xaqiijinta farsamada:
Ujeeddada cilladaha jira ee farshaxankii hore, dhibaatada farsamo ee lagu xalliyo hal-abuurka hadda jira waa: sida loo sameeyo onnu si habboon u beddelo iyadoo loo eegayo habka beddelka ee olt marka olt uu sameeyo beddelka habka asymmetric/habka asymmetric;ikhtiraacida hadda jirta waxay xaqiiqsatay isku darka saxda ah ee olt iyo Adaptation-ka, ma jiri doonto isbarbardhig u dhexeeya habka dhamaadka deegaanka iyo habka dhamaadka fog.
Si loo gaaro ujeedada kore, onuska uu bixiyay hal-abuurku wuxuu la qabsanayaa 10g/10g summetry iyo 10g/1g asymmetry, oo ay ku jiraan talaabooyinkan soo socda:
Talaabada a: Hel nooca moduleka indhaha ee onu.Marka moduleka indho-indheynta uu yahay moduleka indhaha ee summeeyayaasha, go'aami qaabka shaqada hadda ee onu.Haddii qaabka shaqada ee onnu uu yahay qaab summeedka, u gudub tallaabada b;Haddii qaabka shaqada ee onu uu yahay qaab asymmetrical ah, u gudub tallaabada c;
Talaabada b: Go'aami in tirada macluumaadka daaqada ee ay soo saartay olt ee qaabka asymmetrical ay ka sarreyso xadka la cayimay, haddi ay sidaas tahay, ka beddel habka shaqada ee onuunka qaabka asymmetrical, iyo dhamaadka;haddii kale, hayso qaabka shaqada ee onnu, oo dhammaato;
Talaabada c: Go'aami in tirada macluumaadka daaqada ee ay soo saartay olt ee qaabka summaynta ay ka sarrayso xadka la cayimay, haddi ay sidaas tahay, ka beddel habka shaqada ee onnu qaabka asymmetric una beddel qaab summetrical ah, oo dhammaad;haddii kale, ilaali habka shaqada ee onu, dhamaadka.
Iyada oo ku saleysan xalka farsamada ee kor ku xusan, habka lagu helo nooca moduleka indhaha ee onnu lagu sifeeyay tallaabada a waa: marka onku bilaabo, hel nooca moduleka indhaha ee onnu:
Haddii moduleka indhaha uu yahay moduleka indhaha ee asymmetric, jooji habka oo dhammaa;
Haddii moduleka indho-indheynta uu yahay moduleka indhaha, marka onku uu ka beddelo xaalad iftiin la'aan ah oo loo beddelo gobolka ku habboon, dib u soo ceshad nooca moduleka indhaha ee onnu, haddii moduleka indhaha uu yahay moduleka indhaha, sii wad habka xiga. ee tallaabo a;Haddii moduleka indhaha uu yahay moduleka indhaha ee asymmetrical, jooji habka iyo dhamaadka.
Onu ay bixiso hal-abuurka hadda jira waxa uu la qabsanayaa 10g/10g simmetrical iyo 10g/1g asymmetrical system, oo ay ku jiraan module ogaanshaha onnu, qaabka beddelka hab-simmetrical, iyo hab beddelka habka asymmetrical oo lagu habeeyay on on;
Module ogaanshaha onnu waxa loo isticmaalaa in lagu helo: in la helo nooca module-ka indhaha ee onnu, marka moduleka indho-indheynta uu yahay module muuqaal ah, go'aamiyo qaabka shaqada ee onnu hadda, haddii habka shaqada ee onnu uu yahay hab-simmetrical ah. u dir calaamadda beddelka hab-simmetrical moduleka beddelka hab-simmetrical;Haddii qaabka shaqada ee onnu uu yahay qaab asymmetric ah, habka beddelka asymmetric waxaa loo diraa moduleka beddelka habka asymmetric;
Qaabka beddelka summeynta waxa loo isticmaalaa in: ka dib marka la helo calaamada beddelka hab-simmetrical, la xukumo in tirada macluumaadka daaqadda ee ay soo saartay olt ee qaabka asymmetric-ku ay gaadho heer cayiman iyo in kale, haddii ay sidaas tahay, beddelo habka shaqada ee onnu laga bilaabo habka summeynta ilaa habka asymmetric;Haddii kale ilaali habka shaqada ee onu;
Qaabka wareejinta asymmetric-ka waxa loo isticmaalaa in: ka dib marka la helo calaamada beddelka habka asymmetric, la xukumo in tirada macluumaadka daaqada ee olt u soo dirtay habka summaynta ay ka sarreyso xadka la cayimay, iyo haddii ay sidaas tahay, ka beddelo habka shaqada ee onka qaabka asymmetric-ga ee qaabka sumadda;Haddii kale qaabka uu u shaqeeyo sii wad.
Iyada oo ku saleysan nidaamka farsamada ee aan kor ku soo sheegnay, habka lagu helo nooca moduleka indhaha ee onnu ee moduleka ogaanshaha onnu waa: marka onku bilaabmayo, hel nooca moduleka indhaha ee onnu:
Haddii moduleka indhaha uu yahay moduleka indhaha ee asymmetric, jooji shaqada;
Haddii moduleka indho-indheynta uu yahay module muuqaal ah, marka onku uu ka beddelo xaalad iftiin la'aan ah una beddelo gobolka la xidhiidha, dib u soo ceshad nooca moduleka indhaha ee onnu, haddii moduleka indhaha uu yahay moduleka indhaha, sii wad habka xiga. moduleka ogaanshaha onu;Haddii moduleka indho-indheynta uu yahay moduleka indhaha ee aan-Symmetrical ahayn, jooji shaqada.
Marka la barbardhigo farshaxankii hore, hal-abuurka hadda wuxuu leeyahay faa'iidooyinka:
(1) Iyadoo la tixraacayo tillaabada hal-abuurka hadda jira, waxaa la ogaan karaa in hindisaha hadda jira uu markii hore si sax ah u helay nooca onu;Iyada oo ku saleysan tan, tixraaca tallaabada b iyo tallaabada c ee hal-abuurka hadda, waxaa la arki karaa in hal-abuurka hadda jira uu ogaan karo habka hawlgalka ee olt, iyo sida uu qabo habka hawlgalka ee olt, si uu ula qabsado habka shaqada. ee onu, si loo ogaado la qabsiga qumman ee u dhexeeya olt iyo on, oo ma jiri doono ismaandhaaf u dhexeeya habka dhamaadka deegaanka iyo habka dhamaadka fog ee farshaxanka hore.
(2) Iyadoo la tixraacayo tillaabada hal-abuurka hadda jira, waxaa la arki karaa in haddii hal-abuurka hadda uu go'aamiyo in nooca onnu uu yahay mid aan asymmetrical ahayn, taas oo ah, onnu kaliya ayaa awood u leh inuu ku shaqeeyo qaab asymmetric ah, iyo onnu waxa kaliya oo uu la qabsan karaa 10g/10g asymmetric mode, dabagalkana laguma fulin nidaamkan wakhtigan (maxaa yeelay onu ma badali karo hababka shaqada), si loo yareeyo kharashaadka shaqada iyo hagaajinta hufnaanta shaqada.
(3) Iyadoo la tixraacayo tillaabada hal-abuurka hadda jirta, waxaa la arki karaa in ikhtiraacida hadda loo baahan yahay in la ogaado nooca moduleka indhaha ee onnu marka la bilaabo onnu iyo marka onuku isbeddelo xaalad mugdi ah una beddelo xaalad iftiin ah. , iyo 2 ee kor ku xusan ee ogaanshaha waxay ogaan karaan xaaladda bilowga ah ee onnu Nooca moduleka indhaha (ogaanshaha bilowga), iyo haddii moduleka indhaha la beddelay (ogaanshaha marka laga beddelayo xaalad iftiin la'aan ah oo loo beddelayo xaalad iftiin ah) ;sidaas darteed, ikhtiraacida hadda waxay si sax ah u bedeli kartaa hababka shaqada ee xiga iyadoo loo eegayo nooca moduleka indhaha ee onu, si loo hubiyo saxnaanta shaqada.
Waqtiga boostada: Jun-05-2023