(1) Umkhawulokudonsa ophezulu ongakaze ubonwe. Izinga le-GPON liphezulu njenge-2.5 Gbps, elingahlinzeka ngomkhawulokudonsa omkhulu owanele ukuhlangabezana nesidingo esikhulayo somkhawulokudonsa ophezulu kumanethiwekhi azayo, futhi izici zayo ze-asymmetric zingazivumelanisa kangcono nemakethe yesevisi yedatha ye-broadband.

(2) Ukufinyelela kwesevisi ephelele okuqinisekiswe yi-QoS. I-GPON ingaphatha amaseli e-ATM kanye/noma amafreyimu e-GEM ngesikhathi esifanayo, futhi inekhono elihle lokuhlinzeka ngezinga lesevisi, ukusekela isiqinisekiso se-QoS kanye nokufinyelela kwesevisi okugcwele. Ubuchwepheshe be-ATM yokuthwala izinsiza eziningi njengezwi, i-PDH, ne-Ethernet sebuvuthwe kakhulu; ubuchwepheshe bokusebenzisa i-GEM ukuphatha izinsiza ezihlukahlukene zabasebenzisi nabo sebuqashelwe ngazwi linye yiwo wonke umuntu, futhi sebuqale ukusetshenziswa kabanzi nokuthuthukiswa.

(3) Isekela ibhizinisi le-TDM kahle. Isevisi ye-TDM imakwe kuhlaka lwe-GEM. Njengoba ubude bohlaka lohlaka lwe-GPON TC buyi-125 μs, lungasekela ngokuqondile isevisi ye-TDM. I-TDM samasevisi angaphinda afakwe kumephu kumaseli e-ATM, futhi angahlinzeka ngokudluliswa kwesikhathi sangempela ngeziqinisekiso ze-QoS.