XPON Technology Txheej txheem cej luam
XPON yog ib qho kev siv tshuab dav dav raws li Passive Optical Network (PON). Nws ua tiav high-speed thiab loj-muaj peev xwm cov ntaub ntawv kis tau tus mob los ntawm ib leeg-fiber bidirectional kis tau tus mob. XPON thev naus laus zis siv cov yam ntxwv tsis sib kis ntawm cov teeb liab kho qhov muag los faib cov teeb liab kho qhov muag rau ntau tus neeg siv, yog li paub txog kev sib koom ntawm cov peev txheej hauv network tsawg.
XPON system qauv
XPON system feem ntau muaj peb ntu: kho qhov muag kab davhlau ya nyob twg (OLT), kho qhov muag network (ONU) thiab passive optical splitter (Splitter). OLT yog nyob rau ntawm tus neeg teb xov tooj lub chaw ua haujlwm hauv nruab nrab thiab yog lub luag haujlwm rau kev muab cov kev sib txuas ntawm sab nraud thiab xa cov ntaub ntawv xa mus rau cov txheej txheem sab saud xws li cov chaw hauv nroog loj. ONU nyob ntawm tus neeg siv kawg, muab cov neeg siv nrog kev nkag mus rau hauv lub network thiab paub txog kev hloov dua siab tshiab thiab ua cov ntaub ntawv cov ntaub ntawv. Passive optical splitters faib cov teeb liab kho qhov muag rau ntau yamONUs kom ua tiav cov kev pab cuam network.
XPON 4GE + AC + WIFI + CATV + POTS ONU
CX51141R07C
XPON kis tau tus mob technology
XPON siv lub sijhawm faib multiplexing (TDM) thev naus laus zis kom ua tiav cov ntaub ntawv xa mus. Hauv TDM thev naus laus zis, qhov sib txawv ntawm lub sijhawm sib txawv (Lub Sijhawm Slots) tau muab faib ntawm OLT thiab ONU kom paub txog kev sib kis ntawm cov ntaub ntawv. Tshwj xeeb, covOLTfaib cov ntaub ntawv mus rau ONUs sib txawv raws li lub sij hawm slots nyob rau hauv lub upstream kev taw qhia, thiab tshaj tawm cov ntaub ntawv rau tag nrho cov ONUs nyob rau hauv downstream. ONU xaiv kom tau txais lossis xa cov ntaub ntawv raws li lub sijhawm teev npe.
8 PON Chaw nres nkoj EPON OLT CT-GEPON3840
XPON cov ntaub ntawv encapsulation thiab tsom xam
Hauv XPON system, cov ntaub ntawv encapsulation yog hais txog cov txheej txheem ntawm kev ntxiv cov ntaub ntawv xws li headers thiab trailers rau cov ntaub ntawv units kis ntawm OLT thiab ONU. Cov ntaub ntawv no yog siv los txheeb xyuas hom, hom phiaj thiab lwm yam khoom ntawm chav tsev cov ntaub ntawv kom qhov kawg tau txais tuaj yeem txheeb xyuas thiab ua cov ntaub ntawv. Cov ntaub ntawv parsing yog cov txheej txheem uas qhov kawg tau txais cov ntaub ntawv rov qab mus rau nws cov qauv qub raws li cov ntaub ntawv encapsulation.
XPON cov txheej txheem xa cov ntaub ntawv
Hauv XPON system, cov txheej txheem xa cov ntaub ntawv feem ntau suav nrog cov kauj ruam hauv qab no:
1. Lub OLT encapsulates cov ntaub ntawv rau hauv optical signals thiab xa mus rau passive optical splitter los ntawm cov kho qhov muag cable.
2. Lub passive optical splitter faib cov teeb liab kho qhov muag mus rau qhov sib thooj ONU.
3. Tom qab tau txais cov teeb liab kho qhov muag, ONU ua kev hloov kho qhov muag mus rau hluav taws xob thiab rho tawm cov ntaub ntawv.
4. ONU txiav txim siab qhov chaw ntawm cov ntaub ntawv raws li cov ntaub ntawv hauv cov ntaub ntawv encapsulation, thiab xa cov ntaub ntawv mus rau cov khoom siv sib txuas lossis cov neeg siv.
5. Lub tshuab txais lossis cov neeg siv tshuaj xyuas thiab ua cov ntaub ntawv tom qab tau txais.
XPON kev ruaj ntseg mechanism
Cov teeb meem kev ruaj ntseg ntsib los ntawm XPON feem ntau suav nrog kev nkag mus tsis raug cai, kev tawm tsam tsis zoo thiab cov ntaub ntawv eavesdropping. Txhawm rau daws cov teeb meem no, XPON system txais ntau yam kev ruaj ntseg mechanisms:
1. Authentication mechanism: Ua pov thawj tus kheej ntawm ONU kom ntseeg tau tias tsuas yog cov neeg siv raug cai tuaj yeem nkag mus rau hauv lub network.
2. Encryption mechanism: Encrypt cov ntaub ntawv xa mus los tiv thaiv cov ntaub ntawv los ntawm kev eavesdropped los yog tampered.
3. Kev tswj xyuas kev nkag mus: txwv cov neeg siv txoj cai nkag mus los tiv thaiv cov neeg siv tsis raug cai los ntawm kev siv cov peev txheej hauv network.
4. Saib xyuas thiab ceeb toom: Saib xyuas cov xwm txheej hauv lub network hauv lub sijhawm tiag tiag, lub tswb nyob rau lub sijhawm thaum pom cov xwm txheej txawv txav, thiab ua raws li kev ntsuas kev nyab xeeb.
Kev siv XPON hauv tsev network
XPON thev naus laus zis muaj kev thov dav dav hauv kev sib txuas hauv tsev. Ua ntej tshaj plaws, XPON tuaj yeem ua tiav kev siv Internet ceev kom tau raws li cov kev xav tau ntawm cov neeg siv hauv tsev rau kev sib txuas ceev; Qhov thib ob, XPON tsis tas yuav muaj cov kab hluav taws xob sab hauv tsev, uas txo cov nqi kev teeb tsa thiab kev saib xyuas ntawm cov tsev sib txuas hauv tsev; Thaum kawg, XPON tuaj yeem paub txog kev sib koom ua ke ntawm ntau lub network, kev sib koom tes hauv xov tooj, TVs thiab khoos phis tawj. Lub network tau koom ua ke rau hauv tib lub network los pab txhawb cov neeg siv khoom thiab kev tswj hwm.
Post lub sij hawm: Oct-30-2023
