Dị ka ndị isi abụọ nke ohere netwọk anya, EPON na GPON nke ọ bụla nwere uru nke ya, na-asọrịta mpi, na-akwado ibe ya, ma na-amụta ihe site na ibe ya.Ndị na-esonụ ga-atụnyere ha n'akụkụ dị iche iche.
Ọnụ ego
EPON na-enye uplink na downlink 1.25 Gbps, na-anabata akara ahịrị 8b/10b, na ọnụego ya bụ 1Gbps.
GPON na-akwado ọkwa dị iche iche nke ọnụego, nke nwere ike ịkwado asymmetric uplink na downlink ọnụego, 2.5Gbps ma ọ bụ 1.25Gbps maka downlink, na 1.25Gbps ma ọ bụ 622Mbps maka uplink.A na-ekpebi ọnụọgụ elu na downlink dị ka mkpa n'ezie siri dị, a na-ahọrọ modul ngwa anya kwekọrọ ka iwelie ọnụ ahịa ọnụahịa nke ngwaọrụ ngwa anya.
Oke nkewa
Nkewa nkewa bụ ole ONU (ọnụ ndị ọrụ) na-ebu n'ọdụ ụgbọ mmiri OLT (ụlọ ọrụ etiti).
Ọkọlọtọ EPON na-akọwa oke nkewa nke 1:32.
Ụkpụrụ GPON na-akọwa oke nkewa ndị a: 1:32;1:64;1:128.
N'ezie, usoro EPON nke teknụzụ nwekwara ike nweta oke nkewa dị elu, dị ka 1: 64, 1: 128, na usoro njikwa EPON nwere ike ịkwado ndị ọzọ ONU.Oke nkewa na-ejedebere site na ndeksi arụmọrụ nke modul ngwa anya, na oke nkewa ga-eme ka ọnụ ahịa modul ngwa anya bilie nke ukwuu.
GPON na-enye ọtụtụ nhọrọ, mana uru ọ na-efu abụghị ihe doro anya.Ogologo mbufe kacha kacha anya anụ ahụ nke sistemu GPON nwere ike ịkwado.Mgbe nha anya nkewa nkewa bụ 1:16, ọ kwesịrị ịkwado oke anya anụ ahụ nke 20km;mgbe nha anya nkewa nkewa bụ 1:32, ọ kwesịrị ịkwado oke anya anụ ahụ nke 10km.EPON bụ otu ihe ahụ, mana ọ nhata n'ozuzu ya.
Sàgwà ọrụ
Usoro Ethernet n'onwe ya enweghị ike ijikwa QoS.Ya mere, iji mee ka EPON nwee ike ijere ndị ọrụ ozi, a na-atụpụta echiche nke netwọk mpaghara mebere.VLAN na-atụ aro na enwere ike gbanwee njirimara izizi nke okpokolo agba enwetara iji tọọ ntọala maka QOS, mana n'ihi na ejiri aka tinye VLAN, nke dị oke ọnụ.Na GPON nwere ikike ọrụ QoS nke ya mara mma.
EPON na GPON njikọ oyi akwa ntụnyere
E jiri ya tụnyere GPON, EPON dị mfe yana karịa.Na nnyefe Ethernet dị ọcha, ụzọ mkpuchi abụọ na nkwado ATM nke GPON agaghị arụ ọrụ dị ukwuu.
Agbanyeghị, na ịnweta ọrụ netwọkụ, EPON dabara naanị maka ọrụ nnyefe data, ebe GPON nwere ike ịnye ọrụ atọ n'ime otu.
EPON bụ ihe niile-Ethernet ngwọta nke na-akwado nke ọma na njirimara, arụmọrụ na arụmọrụ nke Ethernet protocol, ebe GPON na-eji synchronous optical network/synchronous digital system technology and general frameming protocol for Ethernet transfer.
EPON na GPON nwere uru na ọghọm nke ha.N'ihe gbasara ihe ngosi arụmọrụ, GPON dị elu karịa EPON, mana EPON nwere uru na oge na ọnụ ahịa.GPON na-aga n'ihu.Na-atụ anya ahịa ịnweta brọdband n'ọdịnihu, ọ nwere ike ọ gaghị abụ onye na-anọchi anya ndị ọzọ, ma na-ebikọ ọnụ ma na-emeju ibe ha. Maka ndị ahịa nwere nnukwu bandwidth, multi-service, QoS na nchekwa chọrọ, na teknụzụ ATM dị ka netwọk azụ azụ, GPON ga-abụ. dabara adaba.Maka otu ndị ahịa nwere ọnụ ahịa nwere QoS dị ala yana ihe nchekwa chọrọ, EPON abụrụla nke kachasị.