(1) 10G PON Technology txoj kev txhim kho
EPON tswj hwm los ntawm IEEE, thiab GPON tswj hwm los ntawm ITU yog ob qho tib si hloov mus rau 10 GPON theem ntawm tam sim no thiab cov phiaj xwm tom ntej yog ob qho tib si 100G PON. Muaj qee qhov sib txawv hauv cov kev hloov pauv tshwj xeeb, thiab cov kev hloov pauv hloov pauv tau tshwm sim hauv daim duab hauv qab no:
(2) EPON technology evolution
10G EPON symmetric thiab asymmetric technical qauv thiab cov khoom tau ua tiav, Tsis tas li ntawd, nws muaj qhov zoo ntawm kev sib koom ua ke nrog EPON davhlau ya nyob twg hauv tib lub ODN network yam tsis tau ntxiv cov multiplexer. Tom qab lub centralized kev yuav khoom ntawmOLTXyoo 2016, OLT's 10G PON optical modules tau raug txiav hauv nqe
. Xav txog qhov kev hloov pauv yav tom ntej ntawm lub network, cov neeg ua haujlwm tau pib tsim 10G EPON ua ntej ntawm qhov kawg hauv zos, thiab tseem siv EPON ONT hauv tus neeg siv khoom los ua FTTH kev tsim kho. Nyob rau tib lub sij hawm, vim hais tias tus nqi sib txawv ntawm symmetric optical module thiab asymmetric optical module tsis loj, thiab xav txog qhov bandwidth ratio ntawm asymmetric 10G EPON upstream thiab downstream link yog 1:10, thiaj li yuav zam lub upgrade thov los ntawm cov tom ntej. uplink kev txhim kho kev pabcuam, cov neeg ua haujlwm xav tau ntau dua los siv 10G EPON symmetric hom hauvOLTsab. Cov kauj ruam tom ntej rau EPON yuav hloov mus rau 100G PON thev naus laus zis.
(3) GPON technology evolution
Rau 10G GPON tus qauv, asymmetric XG-PON tus qauv kev thiab cov khoom tau ua tiav. Qhov ruaj khov wavelength symmetric 10G GPON tus qauv XGS-PON tau tso tawm thaum Lub Ob Hlis 2016. Vim yog cov khoom siv uas paub tab cuam tshuam nrog tus qauv, qee cov khoom ntawm cov tuam txhab tau npaj rau kev lag luam siv. NGPON2 (TWDMPON) tus qauv nrog adjustable wavelength tau ua tiav. Tam sim no,OLTCov khoom lag luam tau muag hauv Tebchaws Europe thiab Amelikas.Tam sim no, muaj cov khoom lag luam MDU zoo rau kev lag luam kev lag luam. Lub optical module nrog adjustable wavelength ntawm NGPON2 yog kim thiab nyuaj rau ua tiav.Tom qab ITU ntxiv cov symmetrical tsau wavelength 10G tus qauv (XGS-PON), qee cov tuam txhab ntseeg tias NGPON2 yuav raug hla thiab ncaj qha mus rau 4 * 25G 100G PON tov, thiab nws muaj peev xwm ua ke nrog 100G EPON tus qauv.
Nyob rau hauv lub sij hawm luv luv, tus nqi ONT ntawm 10G PON yuav tsis poob rau tus nqi uas twb muaj lawm ntawm EPON / GPON, yog li nws yog inevitable rau fim qhov teeb meem ntawm kev sib koom ua ke ntawm 10 GPON thiab cov neeg siv sab EPON / GPON davhlau ya nyob twg. Vim tias GPON thiab XGPON terminals sib koom ua ke hauv tib lub ODN network, WDM1r modules yuav tsum tau ntxiv, uas txwv kev xa tawm ntawm XG-PON hauv lub network tam sim no. Yog li ntawd, cov tuam txhab muaj txiaj ntsig zoo muaj lub tswv yim Combo PON ntawm encapsulate GPON thiab XGPON optical modules thiab WDM1r hauv ib qho khoom siv kho qhov muag. Txawm li cas los xij, cov qauv kho qhov muag ntawm Combo PON lub tswv yim tuaj yeem tsuas yog ntim los ntawm XFP, thiab ib lub rooj tsavxwm tsuas tuaj yeem paub txog 8 PON chaw nres nkoj (paub.SFP+ ntim, thiab ib lub rooj tsavxwm tuaj yeem paub txog 16 PON chaw nres nkoj). Lub caij no, vim qhov nce ntawm WDM1r qhov kev poob qis, lub zog luminous xav tau ntawm optical modules siab dua. Tam sim no, lub zog luminous ntawm B + / N1 tsuas tuaj yeem pom tau, thiab C + / N2a siab zog module tsis tuaj yeem muab tau rau lub sijhawm luv luv, uas txwv tsis pub siv qhov ntev-ntev loj spectral piv scenarios.
Cov saum toj no yog kev piav qhia ntawm EPON thiab thev naus laus zis evolution. Cov khoom lag luam network ntawm Shenzhen HDV photoelectron Technology Co., Ltd. yog txhua yam khoom siv tsim nyob ib puag ncig PON network, suav nrogONUseries /OLTseries / optical module series / transceiver series thiab lwm yam. Txhawm rau tsim cov khoom siv network zoo tshaj plaws, peb lub tuam txhab tau nruab nrog pab pawg tshawb fawb thiab kev tsim kho, muab cov neeg siv khoom nrog cov kev pabcuam zoo tshaj plaws, txais tos thov cov neeg ua haujlwm kom nkag siab txog peb cov khoom.
