PON ua feem ntau cov kev coj ua-taw-rau-tsim network, uas yog lub thev naus laus zis kom paub FTTB / FTTH. PON thev naus laus zis muaj ntau cov ntsiab lus thiab raug hloov kho tsis tu ncua iteratively. Kev tsim cov xpon thev naus laus zis yog los ntawm APON, BPON rau GPON thiab EPON. Cov no yog kev sib txuam txhais lus ntawm cov thev naus laus zis thiab cov qauv sib txawv tsim tawm hauv cov caij sib txawv.
APON yog dab tsi?
Qhov kawg ntawm 1990 s, ITU thawj zaug thov APON rau ATM pob ntawv sib txuas lus. Apon siv cov ATM' s centralized thiab statistical multiplexing, ua ke nrog cov sib koom ua haujlwm ntawm passive splitter ntawm optical fiber thiab optical kab davhlau ya nyob twg, uas ua rau tus nqi 20-40% qis dua li qub PDH / SDH nkag mus rau hauv lub system raws li Circuit Court hloov.
BPON yog dab tsi?
Nrog rau txoj kev loj hlob sai ntawm Ethernet technology, APON tsis siv ntxiv lawm. Txij ntawm no, lub tswv yim ntawm BPON (broadband passive optical network) tau npaj siab. BPON raws li ATM raws tu qauv, nrog nce thiab nqis ceev ntawm 155 thiab 622 Mbps feem. Ntxiv rau qhov kev faib cov kab ke zoo, kev tiv thaiv thiab lwm yam haujlwm, BPON tuaj yeem muab Ethernet nkag, xa cov kab tawm video, kab them tus nqi siab ceev thiab lwm yam kev pabcuam.
EPON yog dab tsi?
Vim tias tus nqi siab ntawm BPON kev xa tawm, tom qab ntawd nws hloov los ntawm EPON nrog tus nqi nce siab thiab kev nrawm dua. EPON (Ethernet passive optical network) yog Ethernet passive optical network. EPON raws Ethernet PON thev naus laus zis, uas sib xyaw cov kev zoo ntawm PON technology thiab Ethernet technology, adopts taw tes rau cov qauv sib txuam, kev ua kom muaj qhov ua kom muaj qhov muag hluav taws xob, thiab muab ntau yam kev pab cuam ntawm Ethernet. Vim tias EPON kev xa khoom yog qhov kev siv nyiaj thiab kev siv tau, nws yog txoj hauv kev sib txuas lus tau zoo tshaj plaws kom paub" peb lub network hauv ib qho" thiab" kawg kis lus" ;.
GPON yog dab tsi?
GPON (Gigabit muaj peev xwm passive kho qhov muag network) yog gigabit passive optical network lossis gigabit passive optical network. EPON thiab GPON siv cov qauv sib txawv. Nws tuaj yeem hais tias GPON yog nce qib dua, tuaj yeem xa cov bandwidth ntau dua, thiab tuaj yeem nqa cov neeg siv ntau dua li EPON. Txawm hais tias GPON muaj qhov zoo dua EPON hauv kev kub ceev thiab ntau qhov kev pabcuam, GPON thev naus laus zis yog qhov muaj ntau qhov cuam tshuam thiab nws cov nqi ntau dua EPON. Yog li no, tam sim no, EPON thiab GPON tau siv dav hauv PON qhov kev siv broadband. Cov kev xaiv ntawm qhov thev naus laus zis ntau tau txiav txim siab los ntawm tus nqi ntawm qhov kho qhov muag thiab cov kev xav tau kev pabcuam. GPON yuav zoo dua rau cov neeg siv khoom uas muaj cov kab ke loj, ntau yam kev pabcuam, QoS thiab kev ruaj ntseg yuav tsum thiab ATM tshuab ua tus caj qaum. Kev txhim kho yav tom ntej yog ntau dua bandwidth. Piv txwv li, 10 g EPON / 10 g GPON yog tsim nyob hauv EPON / GPON thev naus laus zis, thiab bandwidth yuav zoo dua.
Nrog qhov ua kom muaj peev xwm xav tau ntawm cov neeg muab kev pabcuam hauv lub network, ntau lub vev xaib nkag mus los yuav tsum tau nthuav dav kom tau raws li qhov kev thov nce ntxiv. Fiber rau tsev (FTTH) passive optical network (PON) optical network nkag yog qhov feem ntau siv thiab siv cov thev naus laus zis. Qhov zoo ntawm PON thev naus laus zis yog tias nws tuaj yeem txo cov haujlwm ntawm caj qaum optical fiber ntau thiab txuag tau peev; lub network qauv yog hloov tau thiab qhov peev xwm nthuav dav yog qhov muaj zog; qhov tsis ua hauj lwm ntawm passive optical Cheebtsam yog tsawg, uas tsis yooj yim los cuam tshuam los ntawm sab nraud ib puag ncig; thiab qhov kev pabcuam txhawb nqa muaj zog.
HTF muaj ntau xyoo ntawm OEM / ODM kev tsim khoom hauv kev lag luam sib txuas lus kho qhov muag, thiab muaj qee qhov kev cuam tshuam hauv kev lag luam thoob ntiaj teb. Nws tsom rau muab cov qhua tuaj noj mov nrog kev tsim qauv thiab kev tsim kho ntawm kev sib txuas lus optical passive basic optical devices, feem ntau suav nrog optical transceiver, optical fiber jumper, PLC splitter, WDM wavelength faib multiplexer. Cov khoom lag luam tau siv dav hauv FTTH, cov ntaub ntawv chaw, 5 g network, network sib txuas lus thiab lwm cov teb
