Izinga le-ieee802.3av lichaza imodi ye-10g/1g (izinga lokuxhumanisa 10g/izinga lokuxhumanisa 1g) engalingani (ebizwa ngokuthi imodi engalingani 10g/1g) kanye ne-10g/10g (izinga lokuxhumanisa kanye nezinga lokuxhumanisa kokubili kungama-10g) okulingana kabili. Imodi ye-A ungqimba olungokwenyama (ebizwa ngokuthi imodi engalingani 10g/10g):
I-olt kumodi ye-non-pair engu-10g/1g ingahambisana ne-onu kumodi ye-symmetric engu-1g/1g kanye ne-onu kumodi ye-asymmetric engu-10g/1g. I-OLT kumodi ye-symmetric engu-10g/10g ingahambisana ne-onu kumodi ye-1g/1g, i-onu kumodi ye-asymmetric engu-10g/1g, kanye ne-onu kumodi ye-symmetric engu-10g/10g.
I-OLT kwimodi yokulinganisa kanye ne-OLT kwimodi yokungalingani ziyafana ekuqondeni kwe-downlink kwendlela yokukhanya yesendlalelo esibonakalayo, futhi isiteshi esingu-10g sisebenzisa ubude be-wavelength obungu-1577nm kanye nokufaka ikhodi engu-64b/66b; ngakho-ke kungakhathaliseki ukuthi i-onu ikwimodi yokulinganisa noma imodi yokungalingani, ingathola idatha ye-downlink evela ku-olt. I-olt izosakaza ngezikhathi ezithile uhlaka lwe-mpcpdsicoverygate (iphrothokholi yokulawula yamaphuzu amaningi, iphrothokholi yokulawula yamaphuzu amaningi). Insimu yolwazi lokuthola kuhlaka isetshenziswa ngokukhethekile ukwazisa ikhono lewindi le-uplink (1g, 10g, 1g+10g dual rate), futhi i-onu ingathola i-olt ngale ndlela yokusebenza yamanje yohlaka.
I-onu kumodi yokulinganisa kanye nemodi yokungalingani ihambisana ngokuphelele kungqimba ye-mac (ukulawula ukufinyelela kwemidiya, ungqimba lokulawula ukufinyelela okuphakathi), futhi umehluko phakathi kwabo ugxile kungqimba ye-phy (ungqimba olungokoqobo, ungqimba olungezansi lwe-osi), kanye namapharamitha okuthumela ungqimba lwe-phy ancike ku-Insert imodyuli ye-optical ye-onu:
Uma i-optical module engalingani ifakwa ku-onu (okungukuthi, i-onu iyi-onu engalingani), njengoba izinga lokuxhumanisa le-optical module engalingani lifinyelela ku-1g, ungqimba lwe-phy lwe-onu lungalungiselela kuphela izinga lokudlulisela elingu-1g ukuze lisebenze kwimodi engalingani. Uma i-optical module engalingani ifakwa ku-onu, njengoba izinga lokuxhumanisa le-optical module lifinyelela ku-10g, i-onu ingalungiselela izinga lokuthumela le-phy layer ku-10g ukuze lisebenze kwimodi engalingani, noma ilungiselele izinga lokuthumela le-phy layer ku-1g ukuze lisebenze kwimodi engalingani.
Noma kunjalo, i-onu kanye ne-olt ekhona zizoba namaphutha alandelayo uma inethiwekhi ithuthukiswa:
Ngesikhathi sokuthuthukiswa kwenethiwekhi, i-OLT ingashintsha phakathi kwemodi yokulinganisa kanye nemodi yokungalingani, kodwa i-ONU ayikwazi ukushintsha ngokuya ngokuguqulwa kwe-OLT. Isibonelo, i-OLT ishintsha kusuka kumodi yokulinganisa iye kumodi yokungalingani, kodwa i-ONU isese kumodi yokulinganisa. Okwamanje, izindlela zokuphela kwendawo (olt) kanye nezindlela zokuphela okukude (onu) azifani.Izinto zobuchwepheshe zokufeza:
Ihlose amaphutha akhona kubuciko bangaphambilini, inkinga yobuchwepheshe exazululwe yilo mshini wokusungula iwukuthi: indlela yokwenza i-onu iguquke ngendlela eguquguqukayo ngokwendlela yokuguqula ye-olt lapho i-olt yenza ukuguqulwa kwemodi yokulinganisa/imodi yokungalingani; lo mshini wokusungula uqaphela inhlanganisela ephelele ye-olt kanye ne-onu Adaptation, ngeke kube khona ukungafani phakathi kwemodi yokuphela yendawo kanye nemodi yokuphela ekude.
Ukuze kufezwe injongo engenhla, i-onu enikezwe yilo mshini wokusungula izinto ivumelana nokulingana okungu-10g/10g kanye nokungalingani okungu-10g/1g, okuhlanganisa nezinyathelo ezilandelayo:
Isinyathelo a: Thola uhlobo lwemojuli yokukhanya ye-onu. Uma imojuli yokukhanya iyimojuli yokukhanya ehambisanayo, nquma imodi yokusebenza yamanje ye-onu. Uma imodi yokusebenza ye-onu iyimodi yokulinganisa, iya esinyathelweni b; uma imodi yokusebenza ye-onu iyimodi yokungalingani, iya esinyathelweni c;
Isinyathelo b: Nquma ukuthi inani lolwazi lwewindi olukhishwe yi-olt kumodi ye-asymmetric lingaphezu komkhawulo ochaziwe, uma kunjalo, shintsha imodi yokusebenza ye-onu kusuka kumodi ye-symmetrical uye kumodi ye-asymmetrical, bese uphela; ngaphandle kwalokho, gcina imodi yokusebenza ye-onu, bese uphela;
Isinyathelo c: Nquma ukuthi inani lolwazi lwewindi olukhishwe yi-olt kumodi yokulinganisa lingaphezu komkhawulo ochaziwe, uma kunjalo, shintsha imodi yokusebenza ye-onu kusuka kumodi yokungalingani iye kumodi yokulinganisa, bese uphela; ngaphandle kwalokho, gcina imodi yokusebenza ye-onu, ukuphela.
Ngokusekelwe kusixazululo sobuchwepheshe esingenhla, inqubo yokuthola uhlobo lwe-optical module ye-onu echazwe esigabeni a yile: lapho i-onu iqala, thola uhlobo lwe-optical module ye-onu:
Uma i-optical module iyi-optical module engalingani, qeda inqubo bese uqeda;
Uma i-optical module iyi-symmetrical optical module, lapho i-onu ishintsha isuka esimweni sokungakhanyi iye esimweni esifanele, phinda uthole uhlobo lwe-optical module ye-onu, uma i-optical module iyi-symmetrical optical module, qhubeka nenqubo elandelayo yesinyathelo a; uma i-optical module iyi-asymmetrical Optical module, qeda inqubo bese uqeda.
I-onu enikezwe yilo mshini wokusungula izinto ivumelana nezinhlelo ezilinganayo ezingu-10g/10g kanye nezingenakulinganiswa ezingu-10g/1g, okuhlanganisa imoduli yokuthola i-onu, imoduli yokushintsha imodi elinganayo, kanye nemoduli yokushintsha imodi engafani ehlelwe ku-onu;
Imojula yokuthola i-onu isetshenziselwa: ukuthola uhlobo lwemojula yokukhanya ye-onu, lapho imojula yokukhanya iyimojula yokukhanya ehambisanayo, ukunquma imodi yokusebenza yamanje ye-onu, uma imodi yokusebenza ye-onu iyimodi ehambisanayo, thumela isignali yokushintsha imodi ehambisanayo kumojula yokushintsha imodi ehambisanayo; Uma imodi yokusebenza ye-onu iyimodi engafaniyo, isignali yokushintsha imodi engafaniyo ithunyelwa kumojula yokushintsha imodi engafaniyo;
Imojuli yokushintsha imodi ehambisanayo isetshenziselwa: ngemva kokuthola isignali yokushintsha imodi ehambisanayo, yahlulele ukuthi inani lolwazi lwewindi olukhishwe yi-olt kumodi engafaniyo lifinyelela umkhawulo ocacisiwe noma cha, futhi uma kunjalo, shintsha imodi yokusebenza ye-onu kusuka kumodi ehambisanayo iye kumodi engafaniyo; Ngaphandle kwalokho gcina imodi yokusebenza ye-onu;
Imojuli yokushintsha imodi engalingani isetshenziselwa: ngemva kokuthola isignali yokushintsha imodi engalingani, yahlulele ukuthi inani lolwazi lwewindi oluthunyelwe yi-olt kumodi engalingani lingaphezu komkhawulo ochaziwe, futhi uma kunjalo, shintsha imodi yokusebenza ye-onu kusuka kumodi engalingani iye kumodi engalingani; Ngaphandle kwalokho gcina imodi yokusebenza ye-onu.
Ngokusekelwe kuhlelo lobuchwepheshe olushiwo ngenhla, inqubo yokuthola uhlobo lwe-optical module ye-onu ku-onu detection module yile: lapho i-onu iqala, thola uhlobo lwe-optical module ye-onu:
Uma i-optical module iyi-optical module engalingani, yeka ukusebenza;
Uma i-optical module iyi-symmetrical optical module, lapho i-onu ishintsha isuka esimweni sokungakhanyi iye esimweni esihlobene, phinda uthole uhlobo lwe-optical module ye-onu, uma i-optical module iyi-symmetrical optical module, qhubeka nenqubo elandelayo ye-onu detection module; uma i-optical module iyi-optical module engeyona i-Symmetrical, yeka ukusebenza.
Uma kuqhathaniswa nobuciko bangaphambilini, lo mbono wamanje unezinzuzo ezilandelayo:
(1) Uma sibhekisela esinyathelweni a salesi sisungulo samanje, kungaziwa ukuthi lesi sisungulo samanje siqale sathola uhlobo lwe-onu ngokunembile; ngalesi sisekelo, sibhekisela esinyathelweni b kanye nesinyathelo c salesi sisungulo samanje, kungabonakala ukuthi lesi sisungulo samanje singabona imodi yokusebenza ye-olt, futhi ngokwendlela yokusebenza ye-olt, ukuzivumelanisa nokulungisa imodi yokusebenza ye-onu, ukuze kutholakale ukuzivumelanisa okuphelele phakathi kwe-olt ne-onu, futhi ngeke kube khona ukungafani phakathi kwemodi yokugcina yendawo kanye nemodi yokugcina ekude kubuciko bangaphambilini.
(2) Uma sibheka isinyathelo a salesi simangaliso, kungabonakala ukuthi uma lesi simangaliso sinquma ukuthi uhlobo lwe-onu luyi-onu engalingani, okungukuthi, i-onu inekhono lokusebenza kwimodi engalingani kuphela, futhi i-onu ingazivumelanisa kuphela nemodi engalingani engu-10g/10g, futhi ukulandelwa akwenziwa ngalesi sikhathi (ngoba i-onu ayikwazi ukushintsha izindlela zokusebenza), ngaleyo ndlela kuncishiswe izindleko zokusebenza futhi kuthuthukiswe ukusebenza kahle komsebenzi.
(3) Uma sibheka isinyathelo a salesi sisungulo samanje, kungabonakala ukuthi lesi sisungulo samanje sidinga ukuthola uhlobo lwe-optical module ye-onu lapho i-onu iqalwa nalapho i-onu ishintsha khona isuka esimweni esimnyama iye esimweni sokukhanya, futhi ukutholwa okubili okukhulunywe ngakho ngenhla kungathola isimo sokuqala se-onu Uhlobo lwe-optical module (ukutholwa ekuqaleni), nokuthi ngabe i-optical module ishintshiwe (ukutholwa lapho ishintsha isuka esimweni sokungabi nokukhanya iye esimweni sokukhanya); ngakho-ke, lesi sisungulo samanje singashintsha ngokunembile izindlela zokusebenza ezilandelayo ngokuya ngohlobo lwe-optical module ye-onu, ukuze kuqinisekiswe ukunemba komsebenzi.
Isikhathi sokuthunyelwe: Juni-05-2023