Emkhakheni wanamuhla weNethiwekhi yezokuxhumana, ubuchwepheshe bePassiveOptical Network (PON) kancane kancane buthathe isikhundla esibalulekile kunethiwekhi yokuxhumana ejwayelekile kanye nezinzuzo zabo zejubane eliphezulu, ibanga elide futhi akukho msindo.Phakathi kwazo, i-GPON, i-XG-PON ne-XGS-PON iwubuchwepheshe obuthinta kakhulu i-passive optical network.Zinezici zazo futhi zisetshenziswa kabanzi ezimeni ezahlukene.Lesi sihloko sihlola umehluko omkhulu phakathi kwalobu buchwepheshe obuthathu ngokuningiliziwe ukusiza abafundi baqonde kangcono izici zabo nezimo zohlelo lokusebenza.
I-GPON, igama eligcwele elithi Gigabit-CapablePassive OpticalNetwork, iwubuchwepheshe benethiwekhi ye-passive optical eyahlongozwa okokuqala yinhlangano ye-FSAN ngo-2002. Ngemva kweminyaka eminingana yentuthuko, i-ITU-T yawumisa ngokusemthethweni ngo-2003. Ubuchwepheshe be-GPON ikakhulukazi imakethe yenethiwekhi yokufinyelela, engakwazi hlinzeka ngedatha eshesha kakhulu futhi enomthamo omkhulu, amasevisi wezwi nevidiyo emindenini namabhizinisi.
Izici zobuchwepheshe be-GPON zimi kanje:
1. Isivinini: izinga lokudlulisela eliya phansi komfula lingu-2.488Gbps, izinga lokudlulisela elikhuphuka nomfula liyi-1.244Gbps.
2. Isilinganiso se-Shunt: 1:16/32/64.
3. Ibanga lokudluliswa: ibanga eliphezulu lokudluliswa ngu-20km.
4. Ifomethi ye-encapsulation: Sebenzisa ifomethi ye-encapsulation ye-GEM (GEM Encapsulation).
5. Indlela yokuvikela: Sebenzisa u-1+1 noma 1:1 indlela yokushintsha isivikelo esingaguquki.
I-XG-PON, igama eligcwele le-10Gigabit-CapablePassive OpticalNetwork, isizukulwane esilandelayo sobuchwepheshe be-GPON, eyaziwa nangokuthi inethiwekhi ye-passive optical network yesizukulwane esilandelayo (NG-PON).Uma iqhathaniswa ne-GPON, i-XG-PON inokuthuthukiswa okuphawulekayo kwesivinini, isilinganiso se-shunt kanye nebanga lokudlulisela.
Izici zobuchwepheshe be-XG-PON zimi kanje:
1. Isivinini: Izinga lokudlulisa i-Downlink liyi-10.3125Gbps, izinga lokudlulisa i-uplink liyi-2.5Gbps (i-uplink ingabuye ithuthukiswe ku-10 GBPS).
2. Isilinganiso se-Shunt: 1:32/64/128.
3. Ibanga lokudluliswa: ibanga eliphezulu lokudluliswa ngu-20km.
4. Ifomethi yephakheji: Sebenzisa ifomethi yephakheji ye-GEM/10GEM.
5.Indlela yokuvikela: Sebenzisa u-1+1 noma 1:1 indlela yokushintsha isivikelo esingaguquki.
I-XGS-PON, eyaziwa ngokuthi i-10GigabitSymmetric Passive OpticalNetwork, inguqulo elinganayo ye-XG-PON, eklanyelwe ukuhlinzeka ngezinsizakalo zokufinyelela kwe-broadband ngamanani alinganayo akhuphuka nomfula.Uma kuqhathaniswa ne-XG-PON, i-XGS-PON inokwenyuka okuphawulekayo kwejubane le-uplink.
Izici zobuchwepheshe be-XGS-PON zimi kanje:
1. Isivinini: Izinga lokudlulisela elizansi nomfula liyi-10.3125Gbps, izinga lokudlulisela elikhuphukayo liyi-10 GBPS.
2. Isilinganiso se-Shunt: 1:32/64/128.
3. Ibanga lokudluliswa: ibanga eliphezulu lokudluliswa ngu-20km.
4. Ifomethi yephakheji: Sebenzisa ifomethi yephakheji ye-GEM/10GEM.
5. Indlela yokuvikela: Sebenzisa u-1+1 noma 1:1 indlela yokushintsha isivikelo esingaguquki.
Isiphetho: I-GPON, i-XG-PON ne-XGS-PON ubuchwepheshe obuthathu obubalulekile benethiwekhi yokubona.Banomehluko osobala ngesivinini, isilinganiso se-shunt, ibanga lokudlulisela, njll., ukuhlangabezana nezidingo zezimo zohlelo lokusebenza ezahlukene.
Ngokuqondile: I-GPON igxile emakethe yenethiwekhi yokufinyelela, ehlinzeka ngesivinini esikhulu, idatha yomthamo omkhulu, izwi nevidiyo nezinye izinsizakalo;I-XG-PON inguqulo ethuthukisiwe ye-GPON, enesivinini esiphezulu kanye nesilinganiso se-shunt esivumelana nezimo.I-XGS-PON igcizelela ukulingana kwamazinga akhuphuka nomfula futhi ifanele izinhlelo zokusebenza zenethiwekhi yontanga ukuya kontanga.Ukuqonda umehluko omkhulu phakathi kwalobu buchwepheshe obuthathu kusisiza ukuthi sikhethe isixazululo esilungile senethiwekhi yokubona ngezimo ezahlukahlukene.
Isikhathi sokuthumela: Apr-24-2024