Feem ntau, cov khoom siv ONU tuaj yeem raug faib ua pawg raws li ntau yam kev siv, xws li SFU, HGU, SBU, MDU, thiab MTU.
1. Kev xa tawm SFU ONU
Qhov zoo ntawm hom kev xa tawm no yog tias cov peev txheej hauv network muaj ntau heev, thiab nws tsim nyog rau cov tsev neeg ywj pheej hauv FTTH scenarios. Nws tuaj yeem ua kom tus neeg siv khoom muaj lub luag haujlwm nkag mus rau broadband, tab sis tsis koom nrog cov haujlwm hauv tsev gateway nyuaj. Hauv qhov chaw ib puag ncig no, SFU muaj ob hom kev siv: ob qho tib si Ethernet interfaces thiab POTS interfaces. Tsuas yog Ethernet interfaces tau muab. Nws yuav tsum tau sau tseg tias hauv ob daim ntawv, SFU tuaj yeem muab cov haujlwm coaxial cable los pab txhawb kev paub txog CATV cov kev pabcuam, thiab kuj tuaj yeem siv nrog lub rooj vag hauv tsev los pab txhawb kev muab cov kev pabcuam ntxiv. Qhov xwm txheej no kuj siv rau cov lag luam uas tsis tas yuav pauv cov ntaub ntawv TDM.
2. Kev xa tawm HGU ONU
Lub tswv yim xa tawm HGU ONU zoo ib yam li SFU, tsuas yog tias cov haujlwm ONU thiab RG yog cov khoom siv kho vajtse sib xyaw ua ke. Piv nrog SFU, nws tuaj yeem ua tiav cov haujlwm tswj hwm thiab kev tswj hwm nyuaj dua. Hauv qhov xwm txheej xa tawm no, U-puab interfaces tau tsim rau hauv cov khoom siv lub cev thiab tsis muab interfaces. Yog tias xav tau xDSLRG cov khoom siv, ntau hom interfaces tuaj yeem txuas ncaj qha rau lub network hauv tsev, uas yog sib npaug rau lub rooj vag hauv tsev nrog EPON uplink interfaces, thiab feem ntau siv rau FTTH daim ntawv thov.
3. Kev xa tawm SBU ONU
Qhov kev daws teeb meem no yog qhov tsim nyog dua rau cov neeg siv lag luam ywj pheej los tsim cov tes hauj lwm hauv FTTO daim ntawv thov hom, thiab yog raws li kev hloov pauv ntawm cov lag luam hauv SFU thiab HGU qhov xwm txheej xa tawm. Hauv qhov chaw xa tawm no, lub network txhawb nqa lub luag haujlwm nkag mus rau broadband thiab muab rau cov neeg siv nrog ntau yam kev sib txuas lus ntawm cov ntaub ntawv, suav nrog El interfaces, Ethernet interfaces, thiab POTS interfaces, ua tau raws li cov kev xav tau ntawm cov lag luam rau kev sib txuas lus ntawm cov ntaub ntawv, kev sib txuas lus suab, thiab TDM cov kab tshwj xeeb. Lub interface U-puab hauv ib puag ncig tuaj yeem muab cov lag luam nrog ntau yam ntxwv ntawm cov qauv thav duab, uas muaj zog dua.
4. Kev xa tawm MDU ONU
Qhov kev daws teeb meem xa tawm siv rau kev tsim kho network ntau tus neeg siv hauv FTTC, FTTN, FTTCab, thiab FTTZ hom. Yog tias cov neeg siv lag luam tsis muaj qhov yuav tsum tau rau cov kev pabcuam TDM, qhov kev daws teeb meem no kuj tseem siv tau los xa cov tes hauj lwm EPON. Qhov kev daws teeb meem xa tawm no tuaj yeem muab cov kev pabcuam sib txuas lus cov ntaub ntawv broadband rau ntau tus neeg siv, suav nrog Ethernet / IP cov kev pabcuam, VoIP cov kev pabcuam, thiab CATV cov kev pabcuam, thiab muaj peev xwm xa cov ntaub ntawv muaj zog. Txhua qhov chaw nres nkoj sib txuas lus tuaj yeem sib haum rau tus neeg siv network, yog li nws cov kev siv network siab dua.
5. Kev xa tawm MTU ONU
Qhov kev daws teeb meem MDU yog kev hloov pauv lag luam raws li kev daws teeb meem MDU. Nws muab ntau yam kev pabcuam interface, suav nrog Ethernet interfaces thiab POTS interfaces, rau ntau tus neeg siv lag luam, ua tau raws li ntau yam kev xav tau kev pabcuam xws li lub suab, cov ntaub ntawv, thiab TDM cov kab mob tshwj xeeb. Thaum ua ke nrog cov qauv kev siv qhov chaw, ntau yam kev ua haujlwm lag luam nplua nuj thiab muaj zog tuaj yeem ua tiav.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-07-2023