PON (Passive Optical Network) zvinoreva kuti hapana kana mudziyo unoshanda uye shandisa chete Optical Fiber uye Passive Components pakati peOLT (Optical Line Terminal) neONU (Optical Network Unit). Uye PON mune huru tekinoroji yekushandisa FTTB/FTTH, iyo inonyanya kugamuchira inongedzo kune akawanda-point network chimiro.
Kune zvakawanda zvemukati muPON Tekinoroji, uye iyo PON Tekinoroji inogara ichidzokorora nekuvandudza. XPON Technology yakagadzirwa kubva kuAPON, BPON, uye gare gare EPON neGPON. Pane nzira dzakasiyana dzekutapurirana uye zviyero zvekutumira zvakagadziridzwa panguva dzakasiyana.
Chii chinonzi APON?
Pakupera kwema1990, ITU (International Telecommunication Union) Kutanga yakaronga APON uchishandisa Asynchronous Transfer Mode (ATM) yePacket Communication. APON inoshandisa iyo centralized uye statistical multiplexing yeATM, yakasanganiswa nebasa rekugovanisa passive divider pane optical fiber uye Optical Line Terminal, izvo zvinoita kuti mutengo udzike ne20% ~ 40% pane yechinyakare PDH/SDH yekupinda system inoenderana nedunhu. switching.
Chii chinonzi BPON?
Nekukurumidza kukura kweEthernet Technology, APON haichashandiswi. Panguva ino, pfungwa yeBroadband Passive Optical Network (BPON) yakatsanangurwa. BPON kusimudzira kweAPON standard, yaimbozivikanwa seAPON, asi yakazoshandurwa kuita BPON nechinangwa chakasiyana. BPON yakavakirwa paATM protocol, ine kukwira nekudzika kwekumhanya kwe155Mbpas uye 622Mbps zvichiteerana. Panguva imwecheteyo, Iyo inowedzera dynamic bandwidth kugoverwa, kudzivirira uye mamwe mabasa, uye inogona kupa Ethernet kuwana, vhidhiyo kutapurirana, yakakwirira-kumhanya Leased Lines uye mamwe masevhisi.
Chii chinonzi EPON?
Nekuda kwemutengo wakakwira wekutumirwa kweBPON, yakazotsiviwa neyakanyanya kudhura uye nekukurumidza EPON.EPON (Ethernet Passive Optical Network) iEthernet Passive Optical Network.EPON PON tekinoroji yakavakirwa paEthernet inobatanidza zvakanakira zvePON tekinoroji uye. Ethernet tekinoroji, inotora Point kune Multi-point chimiro, passive optical fiber kutapurirana,
Nekuda kwemutengo wakakwira wekutumirwa kweBPON, yakazotsiviwa neyakanyanya kudhura uye nekukurumidza EPON.EPON (Ethernet Passive Optical Network) iEthernet Passive Optical Network.EPON PON tekinoroji yakavakirwa paEthernet inobatanidza zvakanakira zvePON tekinoroji uye. Ethernet tekinoroji, inotora Point to- Multi-point structure, passive optical fiber transmission, uye inopa akasiyana masevhisi paEthernet.Nekuti EPON ine mari uye inoshanda kuendesa, ndiyo nzira inoshanda kwazvo yekuwana "manetiweki matatu mune imwechete" uye "maira yekupedzisira" kutaurirana.
Chii chinonzi GPON?
GPON (Gigabit-Capable Passive Optical Network) iGigabit Passive Optical Network kana Gigabit Passive Optical Network.EPON neGPON dzinoshandisa zviyero zvakasiyana, uye GPON ine nharo dzepamusoro, inokwanisa kutumira bandwidth uye kutakura vashandisi vakawanda kupfuura EPON.Kunyangwe GPON ine mabhenefiti ekumhanya kwepamusoro uye masevhisi akawanda kana achienzaniswa neEPON, tekinoroji yeGPON yakanyanya kuoma uye mutengo wayo wakakwira kupfuura weEPON. Naizvozvo, parizvino, EPON neGPON ndiwo matekinoroji anonyanya kushandiswa ePON Broadband kuwana, uye sarudzo tekinoroji inoenderana zvakanyanya nemutengo weiyo optical fiber kuwana uye bhizinesi zvinodiwa.GPON ichave yakakodzerwa zviri nani kune vatengi vane bandwidth yakakwirira, yakawanda-sevhisi, QoS uye kuchengetedza zvinodiwa, uye ATM tekinoroji semusana.Kukura kweramangwana kunowedzera bandwidth, semuenzaniso. , EPON/GPON tekinoroji inovandudza 10 G EPON / 10 G GPON, iyo bandwidth ichave yakavandudzwa.
Kuziva zvakawanda nezve APON,BPON,EPON,GPON
Sezvo huwandu hunodiwa kune vanopa network hunoramba huchiwedzera, kuwanda kwemaitiro ekuwana network kunofanirwawo kuwedzera kuzadzisa ichi chirikura chinodiwa.Fiber to the home (FTTH) passive optical network (PON) optical network access ndiyo inonyanya kushandiswa uye inoshandiswa tekinoroji. Zvakanakira zvePON tekinoroji ndezvekuti zvinogona kuderedza kushandiswa kwebackbone fiber zviwanikwa uye kuchengetedza investment.Flexible network structure, simba rakasimba rekuwedzera;Passive optical devices ane low failure rate and hazvisi nyore kuvhiringwa nekunze kwezvakatipoteredza.Sigiro yakasimba yebhizimusi kugona, etc.