PON (Passive Optical Network) yana nufin babu wani kayan aiki mai aiki kuma kawai a yi amfani da Fiber Optical da Abubuwan Mahimmanci tsakanin OLT (Tsarin Layin Layin gani) da ONU (Sashen hanyar sadarwa na gani).Kuma PON a cikin babbar fasaha don aiwatar da FTTB/FTTH, wanda galibi ya ɗauki batu zuwa tsarin cibiyar sadarwa mai ma'ana da yawa.
Akwai abubuwa da yawa a cikin Fasahar PON, kuma fasahar PON tana ci gaba da haɓakawa da haɓakawa.Fasahar XPON ta haɓaka daga APON, BPON, daga baya EPON da GPON.Akwai hanyoyin watsa daban-daban da ka'idojin watsawa waɗanda aka haɓaka a lokuta daban-daban.
Menene APON?
A ƙarshen 1990s, ITU (Ƙungiyar Sadarwa ta Duniya) ta fara ba da shawarar APON ta amfani da Yanayin Canja wurin Asynchronous (ATM) don sadarwar fakiti.APON yana yin amfani da maɓalli da ƙididdigar ƙididdiga na ATM, haɗe tare da aikin rabawa na masu rarrabawa a kan fiber na gani da tashar Layin Layi, wanda ke sa farashin ƙasa da 20% ~ 40% fiye da tsarin samun damar PDH/SDH na gargajiya dangane da kewaye. sauyawa.
Menene BPON?
Tare da saurin haɓaka fasahar Ethernet, APON ba a amfani da shi sosai.A wannan lokacin, an gabatar da manufar Broadband Passive Optical Network (BPON).BPON shine haɓaka ma'aunin APON, wanda aka fi sani da APON, amma daga baya ya canza zuwa BPON don dalilai daban-daban.BPON ya dogara ne akan ka'idar ATM, tare da sama da gudu na 155Mbpas da 622Mbps bi da bi.A lokaci guda, Yana ƙara ƙimar bandwidth mai ƙarfi, kariya da sauran ayyuka, kuma yana iya samar da damar Ethernet, watsa bidiyo, Layukan haya mai sauri da sauran ayyuka.
Menene EPON?
Saboda tsadar jigilar kayayyaki na BPON, daga baya aka maye gurbinsa da mafi tsada-tasiri da sauri EPON.EPON (Ethernet Passive Optical Network) Ethernet Passive Optical Network.EPON PON fasaha dangane da Ethernet yana haɗa fa'idodin fasahar PON Fasahar Ethernet, tana ɗaukar tsarin Point zuwa Multi-point, watsa fiber na gani mara kyau,
Saboda tsadar jigilar kayayyaki na BPON, daga baya aka maye gurbinsa da mafi tsada-tasiri da sauri EPON.EPON (Ethernet Passive Optical Network) Ethernet Passive Optical Network.EPON PON fasaha dangane da Ethernet yana haɗa fa'idodin fasahar PON Fasahar Ethernet, tana ɗaukar tsarin Point zuwa Multi-point, watsawar fiber na gani na gani, kuma yana ba da sabis iri-iri akan Ethernet.Saboda EPON yana da tattalin arziƙi kuma yana da inganci don turawa, ita ce hanya mafi inganci don cimma "cibiyoyin sadarwa guda uku a ɗaya" kuma “mile na ƙarshe” sadarwa.
Menene GPON?
GPON (Gigabit-Capable Passive Optical Network) shine Gigabit Passive Optical Network ko Gigabit Passive Optical Network.EPON da GPON suna amfani da ma'auni daban-daban, kuma GPON yana da shakka ya fi ci gaba, yana iya watsa ƙarin bandwidth da ɗaukar masu amfani fiye da EPON.Ko da yake GPON yana da ma'auni. Abubuwan da ake amfani da su a cikin babban sauri da ayyuka masu yawa idan aka kwatanta da EPON, fasahar GPON ta fi rikitarwa kuma farashinta ya fi na EPON.Saboda haka, a halin yanzu, EPON da GPON sune fasahar da aka fi amfani da su don samun damar hanyar sadarwa ta PON, kuma zaɓin wanda ya dace. fasaha ya dogara da ƙarin farashin samun damar fiber na gani da buƙatun kasuwanci.GPON zai fi dacewa da abokan ciniki tare da babban bandwidth, sabis da yawa, QoS da buƙatun tsaro, da fasahar ATM a matsayin kashin baya. Ci gaban gaba na gaba shine babban bandwidth, alal misali. , Fasahar EPON/GPON tana haɓaka 10 G EPON / 10 G GPON, za a ƙara haɓaka bandwidth.
Sanin ƙarin bayani game da APON, BPON, EPON, GPON
Yayin da ƙarfin buƙatun masu samar da hanyar sadarwa ke ci gaba da ƙaruwa, haɓakar hanyoyin sadarwa dole ne kuma su faɗaɗa don biyan wannan buƙatu mai girma.Fiber zuwa gida (FTTH) hanyar sadarwa na gani na gani (PON) hanyar hanyar sadarwa ta gani ita ce fasahar da aka fi amfani da ita da aiwatarwa. Abubuwan amfani da fasaha na PON shine cewa zai iya rage amfani da albarkatun fiber na baya da kuma adana zuba jari.Tsarin hanyar sadarwa mai sauƙi, ƙarfin ƙarfin fadadawa; Na'urori masu amfani da kayan aiki suna da ƙananan gazawar kuma ba su da sauƙi don tsoma baki ta hanyar waje. Tallafin kasuwanci mai karfi. iyawa, da sauransu.