Qhov tseem ceeb ntawm Onu nyob rau hauv FTTH (Fiber-rau-hauv-tsev) xa tawm - ib qho kev tshaj lij kev tshaj lij
Nyob rau hauv fiber-rau-lub tsev (FTH) tes hauj lwm, tusChav tsev kho kho kho kho qhov muag (ONU)Ua hauj lwm ua cov khoom tseem ceeb ntawm cov qhua tuaj noj mov (CPE) uas txuas hniav ntawm cov khoom siv kho qhov muag muaj tshuaj lom fiber ntau nrog cov neeg siv khoom kawg. Nws qhov tseem ceeb tshaj tawm kev ua haujlwm, kev ua haujlwm, thiab kev pabcuam zoo. Hauv qab no yog cov ncauj lus kom ntxaws tsom ntawm onu lub luag hauj lwm hauv ftth kev xa tawm.
1. Tub ntxhais muaj nuj nqi: teeb liab teeb liab teeb liab hloov dua siab tshiab
Kho qhov muag demodulation & Kev Hloov:
Lub ONU hloov cov cim hluav taws xob kho qhov muag rau cov neeg siv hluav taws xob rau cov neeg siv hluav taws xob (xov tooj, TVs) thaum ua rau cov cim hluav taws xob rov qab.
Txhawb nqa ntau tus qauv Pon (GPON-PON, 10G-epon), ua kom tiav kev ua tau zoo nrog OLTS thiab txiav txim siab ua tiav bandwidth (piv txwv li 2.5gbps down / 1.25gbps sawv hauv gpon).
2. Ntau qhov chaw pabcuam rau cov neeg siv kawg
Kev Siv Tes Ua ke:
Niaj hnub nimno onus ua ke kev sib txuas, hloov pauv, VoIP, thiab Wi-Fi (piv txwv li, rub tawm qhov xav tau rau CPES ntxiv.
Siv dab tsiVlan TaggingTxog kev pabcuam kev suav (piv txwv li, sib cais hauv internet, IPTV, thiab lub suab tsheb).
Pab kom txhijQhov zoo ntawm kev pabcuam (qos)Kev ua ntej (piv txwv li, kom ntseeg tau qis latency rau VoIP ntawm 802.1p / DSCP cim).
Cov chaw taws teeb tswj (omci / tr -069):
Tso cai rau ISPS rauRemotely Teeb Pom, saib xyuas, thiab kev daws teeb meemOnus, txo cov chaw sib tw.
Txhawb nqaTsis Siv Neeg Tso Cai(piv txwv li, xoom-kov cov khoom siv ntawm daim ntawv Liager / Password authentication).
3. Network Reliability & Kev Ruaj Ntseg
Kev Ntsuam Xyuas Kho Qhov Muag:
Tshawb nrhiav kev ua kom tsis meej fiber ntau attenuation (raug rx rhiab heev:-8 dbm rau -28 dbm) thiab ua rau lub tswb ceeb toom.
Kev Ruaj Ntseg:
AES -128} encryption(G.984.3 Lub pov haum lub pov haum encryption) tiv thaiv eavesdropping.
MAC khi, ACLS, thiab kev rho tawm chaw nres nkojMitisation tsis muaj cai nkag.
Qhov Yuam Kev Kho:
Yuam kev ua yuam kev kho (FEC)Muaj cov nqi qis me ntsis (ber tsawg dua lossis sib npaug ntawm 1e -9}) nyob rau hauv nrov nrov.
4. Tus nqi ua tau zoo & Scalability hauv FTHEPT
Capex / opex cuam tshuam:
Ontus account rau~ {60-70% ntawm CPE tus nqihauv FTH cov haujlwm.
Hwj Huaj Hluav Taws Xob (<15W per unit) reduces operational expenses.
Plug-thiab-Ua Si Kev Xa Khoom:
Pre-configured onus pabSau -15-} Feeb Fital Installations, nrawm nriaj loj zog.
5. Yav Tom Ntej-Advessiness & evolution
Cov kev tsiv teb tsaws chaw:
XGS-Pon OneUS tuaj yeem lis cov qhab nia nrog cov lej sib tw GPon, tiv thaiv ISP kev nqis peev.
SDN / NFV Compatibility:
Txhawb nqa gen ausOpenflow / NetconfRau software-hais txog cov kev faib bandwidth (DBA).
Ntau dua ceev ceev & qis dua Latency:
Kev tawm los50g-Pon (ITU-T G.9807.1)Xav tau onus muaj peev xwm ntawm 25g / 50g symmetric ceev.
Cov Kev Sib Tw & Kev Ua Haujlwm Zoo
Kev sib tshuam: Ntau tus neeg muag khoom onu-olt sib xyaw yuav tsum tauBBF. {247-} Tau txais ntawv pov thawj.
Zog Efficiency: Ua raws liIEEE 802.3Z (EEE)Rau lub zog-txuag hom thaum lub sijhawm tsis sib xws.
ONU yog tusfeem ntau cov neeg siv-pomNyob rau hauv ftth tes hauj lwm, ncaj qha cuam tshuam kev pabcuam zoo (piv txwv li, 4k streaming ruaj khov, kev twv txiaj). Raws li ftth evolves mus rauNtau dua nrawm (50G-Pon) thiab kev tswj hwm zoo dua (AI-tsav O & M), Onus yuav tsum sib npaug kev ua tau zoo, kev nyab xeeb, thiab tus nqi-ua hauj lwm zoo. Isps yuav tsum tau ua ntejCov Qauv Ua Raws Cai, Rutreabyability, thiab Txiaj Ntsig Hloov Yooj YimThaum xaiv cov khoom siv los xyuas kom ntseeg tau ntev lub network sib haum.
