Kwicandelo leNethiwekhi yoNxibelelwano yanamhlanje, iteknoloji yePassiveOptical Network (PON) iye yathatha indawo ebalulekileyo kancinci kancinci kuthungelwano lonxibelelwano oluqhelekileyo ngeenzuzo zalo zesantya esiphezulu, umgama omde kunye nokungabikho kwengxolo. Phakathi kwazo, iGPON, iXG-PON kunye neXGS-PON zezona teknoloji zenethiwekhi ye-optical ezichaphazelekayo. Zineempawu zazo kwaye zisetyenziswa kakhulu kwiimeko ezahlukeneyo. Eli nqaku lihlola umahluko ophambili phakathi kwezi teknoloji zintathu ngokweenkcukacha ukunceda abafundi baqonde ngcono iimpawu zazo kunye neemeko zokusetyenziswa.
I-GPON, igama elipheleleyo elithi Gigabit-CapablePassive OpticalNetwork, yiteknoloji yenethiwekhi ye-optical engasebenziyo eyaqala ukucetyiswa yintlangano ye-FSAN ngo-2002. Emva kweminyaka eliqela yophuhliso, i-ITU-T yayenza yasemgangathweni ngokusemthethweni ngo-2003. Itekhnoloji ye-GPON yenzelwe ikakhulu imarike yenethiwekhi yokufikelela, enokubonelela ngeenkonzo zedatha ezikhawulezayo nezinomthamo omkhulu, ilizwi kunye nevidiyo kwiintsapho kunye namashishini.
Iimpawu zobuchwepheshe be-GPON zezi zilandelayo:
1. Isantya: izinga lokudlulisela elisezantsi yi-2.488Gbps, izinga lokudlulisela elingasentla yi-1.244Gbps.
2. Umlinganiselo we-shunt: 1:16/32/64.
3. Umgama wokudluliselwa: umgama ophezulu wokudluliselwa yi-20km.
4. Ifomathi ye-encapsulation: Sebenzisa ifomathi ye-encapsulation ye-GEM (GEM Encapsulation Method).
5. Indlela yokukhusela: Sebenzisa indlela yokutshintsha ukhuseleko olungasebenziyo oluyi-1+1 okanye oluyi-1:1.
I-XG-PON, igama elipheleleyo le-10Gigabit-CapablePassive OpticalNetwork, sisizukulwana esilandelayo sobuchwepheshe be-GPON, esaziwa ngokuba yinethiwekhi ye-optical yesizukulwana esilandelayo (NG-PON). Xa ithelekiswa ne-GPON, i-XG-PON inophuculo olukhulu kwisantya, umlinganiselo we-shunt kunye nomgama wokudluliselwa.
Iimpawu zobuchwepheshe be-XG-PON zezi zilandelayo:
1. Isantya: Izinga lokudluliselwa kweDownlink yi-10.3125Gbps, izinga lokudluliselwa kwe-uplink yi-2.5Gbps (i-uplink ingaphuculwa ibe yi-10 GBPS).
2. Umlinganiselo we-shunt: 1:32/64/128.
3. Umgama wokudluliselwa: umgama ophezulu wokudluliselwa yi-20km.
4. Uhlobo lwephakheji: Sebenzisa uhlobo lwephakheji ye-GEM/10GEM.
5. Indlela yokukhusela: Sebenzisa indlela yokutshintsha ukhuseleko olungasebenziyo oluyi-1+1 okanye oluyi-1:1.
I-XGS-PON, eyaziwa ngokuba yi-10GigabitSymmetric Passive OpticalNetwork, yinguqulelo ye-XG-PON, eyenzelwe ukubonelela ngeenkonzo zokufikelela kwi-broadband ngamanqanaba alinganayo aphezulu nasezantsi. Xa kuthelekiswa ne-XG-PON, i-XGS-PON inokwanda okukhulu kwesantya se-uplink.
Iimpawu zobuchwepheshe be-XGS-PON zezi zilandelayo:
1. Isantya: Izinga lokudlulisela elisezantsi yi-10.3125Gbps, izinga lokudlulisela eliphezulu yi-10 GBPS.
2. Umlinganiselo we-shunt: 1:32/64/128.
3. Umgama wokudluliselwa: umgama ophezulu wokudluliselwa yi-20km.
4. Uhlobo lwephakheji: Sebenzisa uhlobo lwephakheji ye-GEM/10GEM.
5. Indlela yokukhusela: Sebenzisa indlela yokutshintsha ukhuseleko olungasebenziyo oluyi-1+1 okanye oluyi-1:1.
Isiphelo: I-GPON, i-XG-PON kunye ne-XGS-PON ziiteknoloji ezintathu eziphambili zenethiwekhi ye-optical engasebenziyo. Zinomahluko ocacileyo kwisantya, umlinganiselo we-shunt, umgama wokudluliselwa, njl.njl., ukuhlangabezana neemfuno zeemeko ezahlukeneyo zokusetyenziswa.
Ngokukodwa: I-GPON yenzelwe kakhulu imarike yenethiwekhi yokufikelela, inika idatha ekhawulezayo, enomthamo omkhulu, ilizwi nevidiyo kunye nezinye iinkonzo; i-XG-PON yinguqulelo ephuculweyo ye-GPON, enesantya esiphezulu kunye nomlinganiselo we-shunt oguquguqukayo ngakumbi. I-XGS-PON igxininisa ulungelelwaniso lwamazinga aphezulu nasezantsi kwaye ifanelekile kwizicelo zenethiwekhi yontanga. Ukuqonda umahluko ophambili phakathi kwezi teknoloji zintathu kusinceda sikhethe isisombululo senethiwekhi ye-optical esifanelekileyo kwiimeko ezahlukeneyo.
Ixesha leposi: Epreli-24-2024