Xaiv txoj cai ONU (Optical Network Unit, los yog "optical modem") rau tsev neeg cov chaw ntawm kev sib piv tus neeg teb xov tooj lub network, ua tau raws li lub tsev xav tau kev pab, ntsuas qhov ruaj khov thiab nthuav dav, thiab zam qhov teeb meem ntawm "yuav khoom siv tsis tau." Muaj peb yam tseem ceeb ua ntej (txiav txim siab yog tias nws yuav ua haujlwm):
Paub meej tias ISP's Access Protocol
ISPs sib txawv siv PON network raws tu qauv sib txawv. Cov txheej txheem incompatibility=ntaus ntawv ua tsis muaj txiaj ntsig. Koj yuav tsum sab laj nrog cov neeg siv khoom ua ntej (China Telecom 10000 / China Mobile 10086 / China Unicom 10010).
Cov kev cai tseem ceeb: GPON (feem ntau, siv los ntawm Telecom / Unicom / Txawb), EPON (siv los ntawm qee tus neeg siv xov tooj hauv cheeb tsam / cable), XGS-PON / 10G-PON (rau Gigabit + broadband, yav tom ntej qauv).
Lus Cim: Rau 100M / Gigabit broadband, GPON / EPON txaus. Yog tias npaj yuav hloov mus rau ntau-gigabit/Gigabit+ broadband, xaiv ib qho XGS-PON qauv ncaj qha (uas yog rov qab sib xws nrog Gigabit).
Paub meej txog txoj kev Authentication
ISP authenticates ONU. Tsuas yog cov khoom siv uas muaj pov thawj tuaj yeem tau txais kev teeb tsa dav dav. Cov txheej txheem ntau:
LOID Authentication: Mainstream rau Telecom/Unicom. Yuav tsum tau nkag mus rau LOID code muab los ntawm ISP (tuaj yeem pom ntawm daim ntawv lo ntawm ONU qub).
SN Authentication: Mainstream rau Txawb. Lub cuab yeej SN code yog ua ntej- sau npe hauv ISP's system; nws yog ntsaws-thiab- ua si.
Cov Lus Qhia Txog Kev Yuav Khoom: Ua ntej ISP- cov qauv kev cai (Huawei, ZTE, FiberHome) rau 100% kev sib raug zoo. Rau tus kheej- cov qauv yuav, qhia meej rau tus neeg muag khoom "txhawb XX ISP's XX authentication."
Paub meej tias Tsev Neeg Bandwidth Cap
ONU qhov chaw nres nkoj ceev txiav txim siab yog tias koj qhov broadband ceev tuaj yeem siv tau tag nrho, zam "tus nees me rub lub laub loj":
100M Broadband: tuaj yeem xaiv 100M lossis Gigabit chaw nres nkoj (Gigabit chaw nres nkoj tau pom zoo rau kev hloov kho yav tom ntej).
Gigabit Broadband: Yuav tsum xaiv Gigabit WAN / LAN ports (labeled "GE"), thiab ntaus ntawv yuav tsum txhawb "Gigabit tus nqi xa mus."
Multi-gigabit/Gigabit+ Broadband (xws li 2Gbps/10Gbps): Xaiv 2.5G/10G ports (labeled "2.5GE/10GE").
