Ib Lub davhlau ya nyob twg kab kho qhov muag (OLT) yog lub hauv paus tseem ceeb ntawm lub network optical passive thiab siv los hloov, sib koom tes, thiab tswj cov teeb liab optical ntawm tus neeg muab kev pabcuam thiab cov neeg siv. OLT ua haujlwm ua lub plawv ntawm lub network, coj kev tsheb thiab xyuas kom meej tias kev xa khoom hauv internet, TV, thiab kev pabcuam xov tooj ntawm kev sib txuas fiber optic rau cov tsev nyob thiab cov lag luam. Cov chav no nyob hauv lub chaw ua haujlwm hauv paus ntawm tus neeg muab kev pabcuam thiab txuas rau ntau tus neeg sau npe ntawm cov splitters thiab ONUs. Nrog OLTs, cov neeg muab kev pabcuam tuaj yeem coj internet ceev ceev rau tag nrho cov zej zog nrog kev sib txuas txhim khu kev qha thiab ceev. Thoob plaws ntiaj teb, cov nroog vam khom OLTs los txhawb kev thov rau cov kev pabcuam digital. Rau cov neeg uas xav paub txog lawv cov fiber internet ua haujlwm li cas, kev paub txog OLT yog dab tsi ua kom meej meej txog lub network architecture.

Lub Optical Line Terminal yog dab tsi?

Lub Optical Line Terminal (OLT) ua haujlwm ua lub luag haujlwm tseem ceeb hauv kev xa cov ntaub ntawv mus rau lwm lub network. cov khoom siv kho vajtse kawg ntawm lub network fiber optic, txuas tus neeg muab kev pabcuam hauv internet lub network backbone rau ntau tus neeg rau npe los ntawm ntau ONTs lossis ONUs. Nrog lub peev xwm los pab txhawb ntau yam PON technologies xws li GPON, EPON, thiab XGS-PON, OLTs ua kom muaj txiaj ntsig zoo kev tswj hwm network thiab kev hloov pauv tau rau ntau yam kev pabcuam fiber broadband, tswj cov ntaub ntawv khiav lag luam kom muab cov neeg siv nrog kev sib txuas ruaj khov, ceev, thiab ruaj ntseg.

• Cov OLTs xa cov ntaub ntawv downstream mus rau ONTs lossis ONUs thiab tau txais cov ntaub ntawv upstream los ntawm lawv.

• Lawv multiplex thiab demultiplex teeb liab ntawm cov kab sib koom ua ke.

• Txhua tus Chaw nres nkoj OLT tuaj yeem txuas rau ntau lub ONTs lossis ONUs los ntawm lub splitter. Cov piv sib cais feem ntau yog 1 txog 64 lossis 1 txog 128.

• Qhov ceev ntawm Uplink thiab downlink sib txawv ntawm tus qauv, xws li ntawm 1.25 Gbps txog 10 Gbps lossis ntau dua.

• Cov OLTs txhawb nqa ntau hom kev pabcuam, suav nrog internet, VoIP, multimedia, thiab ntau ntxiv.

• Tsim los rau kev nthuav dav, OLTs ua rau cov neeg muab kev pabcuam tuaj yeem nce thiab qhia cov kev pabcuam tshiab thaum muaj kev thov nce ntxiv.

1. Lub Hauv Paus ntawm Lub Network

Lub OLT yog lub plawv ntawm txhua lub PON, ua haujlwm ua lub hauv paus tseem ceeb uas khi txhua yam ua ke. Nws ua kom cov teeb liab ntws mus los ntawm lub network backbone mus rau txhua ONT lossis ONU txuas nrog hauv tsev thiab chaw ua haujlwm. Lub OLT yog lub luag haujlwm rau kev tswj hwm tag nrho lub network kom ruaj khov los ntawm kev tswj cov ntaub ntawv ntws, tiv thaiv kev txhaws thiab kev tawm.

Txhua lub OLT muaj ntau lub rooj tsavxwm thiab cov chaw nres nkoj, uas ua rau nws tuaj yeem pab tau ntau pua lossis ntau txhiab tus neeg sau npe tib lub sijhawm. Ua li no, nws ua rau lub network ruaj khov thiab hloov tau yooj yim txawm tias muaj pes tsawg tus neeg sau npe lossis kev siv cov ntaub ntawv.

2. Tus Thawj Coj Kev Thauj Mus Los

OLT yog cov tub ceev xwm khiav tsheb, txiav txim siab yuav ua li cas faib bandwidth thiab xa cov ntaub ntawv. Lawv xa mus rau cov neeg siv thiab rov qab mus rau lub network tseem ceeb. Cov txheej txheem no, hu ua multiplexing, tso cai rau ntau tus neeg rau npe siv tib lub fiber yam tsis muaj kev sib tsoo.

Piv txwv li, lawv tuaj yeem muab qhov tseem ceeb rau kev sib tham los ntawm hom, ua kom ntseeg tau tias kev hu xov tooj lossis video tau txais qhov tseem ceeb thaum xav tau. Qhov no ua rau kev hu xov tooj meej thiab cov yeeb yaj kiab tsis muaj teeb meem, txawm tias thaum muaj kev sib tham ntau. Lawv yog cov phab ej uas tsis muaj npe nrov uas tiv thaiv koj lub internet kom tsis txhob nkag mus.

3. Lub Rooj Vag Kev Pabcuam

Ua ib lub rooj vag kev pabcuam, OLT yog lub qhov rooj uas qhib dav rau kev pabcuam internet, xov tooj, thiab video rau cov tsev thiab cov lag luam. Nws txuas nrog lub network tseem ceeb ntawm tus neeg muab kev pabcuam, ua rau cov neeg siv nkag mus rau hauv internet ceev ceev, VoIP, thiab cov ntsiab lus streaming. Tus qauv tsim ntawm OLT ua rau cov neeg muab kev pabcuam, txij li me mus rau loj, xa kev sib txuas ceev ceev rau txhua tus neeg siv.

Piv txwv li, feem ntau cov OLTs tuaj yeem hloov kho tau zoo heev, yog li cov neeg nqa khoom tuaj yeem txuas cov kev pabcuam tshiab thaum lawv tsim kho. Txij li cov tuam txhab me me mus rau cov neeg nqa khoom hauv tebchaws, OLT yog qhov pab lawv nyob ua ntej ntawm qhov kev thov nce siab rau broadband thiab cov apps tshiab.

4. Lub Chaw Tswj Xyuas

Lub OLT yog lub hauv paus rau kev tswj hwm network. Los ntawm no, cov neeg teb xov tooj tuaj yeem saib xyuas, hloov kho, thiab kho lub network hauv lub sijhawm tiag tiag. Lub OLT muab kev tswj hwm tag nrho ntawm txhua ONT lossis ONU, cia koj yooj yim txheeb xyuas cov teeb meem thiab daws lawv ua ntej lawv nce siab.

Nws txhawb nqa kev saib xyuas thiab kev hloov kho nyob deb, yog li cov kws tshaj lij tsis tas yuav tsum dov tawm txhua zaus muaj teeb meem. Kev teeb tsa hauv nruab nrab zoo li no txuag tau lub voj voog thiab tiv thaiv kev puas tsuaj loj. Lub OLT ntse txhais tau tias kev noj qab haus huv ntawm lub network raug saib xyuas ze thiab kev nthuav dav ntawm lub network yog qhov tsis muaj teeb meem ntau.

Yuav ua li cas OLT ua haujlwm

OLT sawv cev rau Optical Line Terminal, uas yog lub cuab yeej hauv nruab nrab hauv FTTH network. Nws nyob ntawm lub chaw ua haujlwm hauv nruab nrab ntawm tus neeg muab kev pabcuam thiab txuas ntawm optical fiber mus rau ntau tus neeg siv kawg, hu ua ONTs lossis ONUs. Nws yog OLT lub luag haujlwm tseem ceeb los hloov, multiplex thiab xa cov ntaub ntawv los ntawm tus txha nraub qaum mus rau txhua tsev neeg thiab tau txais cov ntaub ntawv. Qhov no xav tau cov khoom siv ntse thiab kev teem sijhawm, nrog rau cov txheej txheem meej rau kev sib txuas lus ntawm cov khoom siv.

Ib qho OLT ib txwm ua haujlwm los ntawm cov kauj ruam no:

1. Lub rooj tsavxwm tswj hwm, lossis qhov hloov pauv, coj thiab tswj cov ntaub ntawv los txuas OLT rau hauv internet dav dua nrog cov ntawv uplink, feem ntau nrog cov interfaces ceev xws li 10G lossis 100G Ethernet.

2. Lub transceiver hloov cov teeb liab digital mus ua lub teeb, feem ntau ntawm 1490nm rau kev xa cov ntaub ntawv. Lub teeb no hla dhau fiber mus rau lub passive splitter.

3. OLT Yuav Ua Li Cas OLT Ua Haujlwm Lub splitter faib lub teeb kom txog li 64 lossis 128 ONUs nyob ntawm qhov sib piv thiab kev teeb tsa.

4. Cov ONUs ntawm cov tsev nyob tau txais lub teeb liab thiab xa rov qab lawv cov ntaub ntawv ntawm lub teeb sib txawv, xws li 1310nm, los tiv thaiv kev cuam tshuam.

5. Lub OLT sau cov ntaub ntawv los ntawm txhua lub ONUs, teeb tsa nws thiab xa mus rau hauv internet.

Cov txheej txheem meej xws li OMCI ua rau nws yog li OLTs thiab ONUs los ntawm ntau hom lag luam tuaj yeem sib koom tes. Ib qho OLT tswj ob qho tib si downstream thiab kev thauj mus los sab saud, yog li txhua tus neeg siv tau txais kev pabcuam zoo.

Tsheb khiav mus rau sab qab teb

Tsheb khiav mus rau sab qab teb, uas yog txhua yam uas optical line termination (OLT) xa mus rau cov neeg rau npe, suav nrog cov haujlwm xws li streaming video, web surfing, lossis cov downloads loj. Lub OLT tuaj yeem xa ntau txoj kev sib txuas lus tib lub sijhawm, ua haujlwm tau zoo rau ntau lub tsev tib lub sijhawm. Piv txwv li, cov kev pabcuam video xav tau kev thauj mus los sai thiab sib xws, yog li cov yam ntxwv OLT muab qhov tseem ceeb rau txhua tus neeg siv cov kev xav tau nrog qhov tsawg kawg nkaus latency. OLT tswj hwm qhov kev thauj mus los no zoo npaum li cas txiav txim siab seb koj cov downloads ceev npaum li cas thiab koj cov streaming yuav du npaum li cas.

Tsheb khiav mus rau sab saud

Cov tsheb khiav mus los ntawm txhua tus neeg siv lub chaw teeb tsa optical network (ONU) mus rau qhov chaw xaus optical line termination (OLT). Txhua ONU siv nws tus kheej wavelength, xyuas kom meej tias tsis muaj dab tsi sib xyaw, tso cai rau OLT kom paub qhov txawv ntawm txhua tus neeg siv tau zoo. Tag nrho cov teeb liab no yuav tsum tau txheeb los ntawm OLT kom tiv thaiv kev sib tsoo, uas yog qhov tseem ceeb rau cov ntawv thov bandwidth xws li VoIP thiab kev hu video uas xav tau qis latencyLub OLT lav tsis muaj kev lag luam, ua kom cov kev hu xov tooj meej thiab tam sim ntawd.

Kev Faib Bandwidth

Lub OLT, lossis kev xaus kab optical, faib cov bandwidth raws li tus neeg siv thov. Yog tias ib lub tsev tab tom streaming ib zaj yeeb yaj kiab thaum lwm lub tsev tsuas yog kuaj xyuas email, OLT faib qhov ceev kom ntseeg tau tias txhua tus neeg siv nkag mus ncaj ncees. Cov khoom siv OLT tshiab dua tuaj yeem hloov kho qhov kev faib no ntawm tus yoov, hloov kho rau qhov xav tau siab tshaj plaws thiab tswj hwm lub network tswj hwm zoo. Lub peev xwm no tso cai rau lub network optical kom nyob ruaj khov thiab ceev ceev, kom ntseeg tau tias tsis muaj leej twg tos txawm tias qhov xav tau hloov pauv.

Cov Qauv thiab Hom OLT

Cov davhlau ya nyob twg ntawm cov kab kho qhov muag (OLTs) ua raws li ntau yam cov qauv pon uas txiav txim siab txog kev ua haujlwm ntawm lub network, kev muaj peev xwm ceev, thiab kev sib raug zoo nrog lwm yam khoom siv. Cov qauv tseem ceeb suav nrog GPON, EPON, XG-PON, XGS-PON, thiab Combo PON, uas tswj cov ntaub ntawv ceev, hom kev sib txuas, thiab kev nthuav dav hauv txoj kev tshwj xeeb. Thaum xaiv lub cuab yeej OLT zoo tshaj plaws, nws yog ib qho tseem ceeb uas yuav tsum xav txog tus lej ntawm cov neeg siv kom tau txais kev txhawb nqa, qhov ceev tsim nyog tshaj plaws, thiab qib ntawm kev nthuav dav uas xav tau rau cov khoom siv fiber broadband. Kev sib raug zoo nrog lwm yam khoom siv network yog qhov tseem ceeb, vim tias cov qauv qhia txog yam ua haujlwm ua ke thiab xyuas kom meej tias kev ua haujlwm du.

• GPON: 2.5 Gbps down thiab 1.25 Gbps up, siv thoob ntiaj teb

• EPON: 1 Gbps down/up, yooj yim thiab pheej yig

• XG-PON muaj qhov ceev rub tawm 10 Gbps thiab qhov ceev xa tawm 2.5 Gbps, ua rau nws ceev heev rau cov kev xav tau uas tab tom loj hlob.

• XGS-PON muaj 10 Gbps download thiab 10 Gbps upload speeds, ua rau nws zoo tshaj plaws rau cov tsheb khiav coob.

• Combo PON txhawb nqa ob qho tib si GPON thiab XG (S) -PON thiab tso cai rau kev hloov kho yooj yim.

Cov Qauv PON

Cov txheej txheem no txhais cov qauv rau Kev sib txuas lus OLT hauv cov tes hauj lwm fiber. Cov qauv no txhais tau tias OLTs sib txuas lus li cas rau ntau tus neeg rau npe ntawm ib txoj hlua fiber, ua rau cov neeg nqa khoom mus txog cov tsev nyob, chaw ua haujlwm, lossis txawm tias cov chaw nyob hauv tsev kawm ntawv loj. GPON lub zog yog nws qhov siab downstream ntawm 2.5 Gbps thiab tus nqi upstream ntawm 1.25 Gbps, uas tau ua rau nws yog qhov kev xaiv zoo tshaj plaws rau feem ntau cov kev xa tawm tshiab. EPON, lub sijhawm no, muab cov kev ceev symmetrical ntawm 1 Gbps thiab muaj lub koob npe nrov rau kev teeb tsa yooj yim dua thiab tus nqi qis dua, ua rau nws haum zoo qhov twg cov peev nyiaj tsawg lossis kev thov yog sib xws tab sis tsis dhau. Cov qauv OLT thiab hom kho XG-PON thiab XGS-PON coj nws mus ntxiv nrog qhov ceev ntawm 10 Gbps, uas zoo tagnrho hauv nroog lossis lwm qhov chaw uas ntau tus neeg xav tau kev ceev tib lub sijhawm. Combo PON ntxiv ib txheej ntawm kev ywj pheej, tso cai rau ib qho OLT los txhawb nqa ob qho tib si qub thiab cov qauv tshiab, yog li kev hloov kho tsis tas yuav tsum tau rhuav tshem thiab hloov pauv tag nrho.

Cov qauv thiab hom OLT Lawv cia cov neeg teb xov tooj suav nrog cov neeg rau npe ntxiv lossis nce tus nqi yam tsis tas yuav hloov kho tag nrho lub network. Lawv ua rau cov khoom siv los ntawm ntau lub tuam txhab sib koom tes ua haujlwm, yog tias txhua tus neeg ua raws li cov qauv.

Kev Teeb tsa Kho Vaj Tse

Cov OLTs, lossis Optical Line Termination devices, muaj ntau yam qauv uas tsim los rau ntau yam kev xav tau ntawm kev sib txuas lus. Cov Box-type OLTs yog ultra-compact thiab zoo tagnrho rau cov zej zog me me lossis qhov chaw nqaim, thaum cov chassis-type OLTs loj dua thiab tsim los pab txhawb cov phaib thiab modules ntxiv, ua rau lawv haum rau cov tes hauj lwm fiber broadband dav dav. Qee cov khoom siv OLT siv ib lub zog fais fab rau kev yooj yim, thaum lwm tus siv ob lub zog fais fab rau kev thaub qab yog tias muaj kev ua tsis tiav.

Cov OLTs modular muab kev ywj pheej los pib me me thiab nthuav dav raws li qhov xav tau ntawm lub network. Nrog rau lub peev xwm los ntxiv cov modules tshiab rau cov neeg siv ntxiv lossis cov ntawv thov bandwidth ntau dua, cov nqi pib tseem qis thaum tso cai rau kev nthuav dav yav tom ntej. Qhov kev hloov pauv no yog qhov tseem ceeb rau cov neeg muab kev pabcuam uas tab tom nrhiav kev txhim kho lawv cov khoom siv.

Kev xaiv cov terminals optical network zoo nyob ntawm qhov chaw teeb tsa. Cov cheeb tsam nyob deb nroog tsuas yog xav tau lub thawv OLT xwb, tab sis cov chaw hauv nroog feem ntau xav tau cov hom chassis nrog ntau lub qhov rooj pon thiab cov kev xaiv fais fab thaub qab. Cov kev xaiv tsim no cuam tshuam rau lub sijhawm ua haujlwm, qhov ceev, thiab qhov yooj yim ntawm kev kho lossis kev nthuav dav network.

Lub Luag Haujlwm Tseem Ceeb ntawm OLT

Lub tshuab optical line terminal, lossis OLT device, yog lub plawv dhia ntawm lub network fiber optic. Nws txuas lub internet lub backbone ceev heev rau cov tsev neeg nyob ze, cov lag luam, thiab cov tsev kawm ntawv, kom ntseeg tau tias txhua tus tau txais lawv qhov bandwidth sib npaug. Yog tsis muaj OLT, nws yuav luag tsis tuaj yeem tswj hwm leej twg tau txais qhov ceev twg lossis tswj hwm kev ua haujlwm network zoo tshaj plaws. OLT faib, teeb tsa, thiab tiv thaiv tag nrho cov ntaub ntawv tuaj thiab mus, zoo li lub network tswj hwm system zoo rau cov ntaub ntawv. Nov yog daim ntawv teev npe ntawm OLT nta, nrog rau me ntsis ntawm cov ntsiab lus rau txhua qhov.

• Xyuas kom muaj kev txiav txim los ntawm kev tswj hwm cov ntaub ntawv kom tsis muaj ib tus neeg siv tuaj yeem thaiv tag nrho lub kaw lus.

• Faib cov bandwidth raws li tus neeg siv xav tau, siv cov thev naus laus zis ntse kom txhua tus tau txais qhov ceev sib npaug.

• Ruaj ntseg cov ntaub ntawv thiab tiv thaiv tus kheej thaum nws mus ncig hla lub fiber.

• Tswj ntau ONUs (lub thawv ntawm sab neeg siv) los ntawm ib qho OLT, tej zaum yuav muaj ntau pua.

• Muab qhov tseem ceeb rau kev thauj mus los, xws li 4K video lossis kev hu xov tooj, yog li cov no tseem meej thiab meej.

• Khiav PLOAM thiab OMCI, tso cai rau ONUs los ntawm ntau tus neeg muag khoom sib koom tes tsuav yog lawv ua raws li tib cov qauv.

• Lub luag haujlwm ntawm OLT

Pab kom FTTH

Zoo, ua ntej, FTTH yog Fiber rau Lub Tsev, qhov twg cov xov hlau fiber optic mus ncaj qha rau hauv tsev. OLT yog qhov ua rau qhov no ua haujlwm. Lawv tso cai rau ISP xa cov teeb liab muaj zog thiab huv si ncaj qha mus rau cov tsev, hla dhau cov khoom qeeb ntawm tooj liab.

Yog tias muaj OLT ua haujlwm, qhov ceev yog qhov ruaj khov thiab lub sijhawm tsis ua haujlwm tsis tshua muaj. Xav txog lub zej zog uas txhua tus neeg nyob hauv zej zog saib cov yeeb yaj kiab HD, ua si online, thiab ua haujlwm hauv tsev yam tsis muaj latency! Qhov ntawd yog ua tsaug rau OLT, uas npaj tag nrho cov tsheb khiav ntawd, ua kom nws tshiab thiab dav dav. Nws pab txhawb kev nthuav dav ntawm cov tes hauj lwm fiber, tau txais ntau lub tsev nyob ze thaum muaj kev thov nce ntxiv.

Kev Txhawb Nqa Cov Lag Luam

Cov lag luam vam khom OLTs rau kev sib txuas lus zoo thiab ceev ceev. Lub luag haujlwm tseem ceeb ntawm OLT yog tias nws tswj hwm kev sib koom ua ke loj thiab tswj hwm kev ncaj ncees ntawm cov ntaub ntawv.

Thaum cov tuam txhab loj hlob tuaj, OLTs loj hlob tuaj, nthuav dav nrog ntau kab thiab ntau bandwidth. Qhov no ua rau cov tuam txhab tuaj yeem nthuav dav nrog cov neeg siv ntxiv lossis cov chaw ntxiv yam tsis muaj teeb meem. Cov fiber txhim khu kev qha ua rau cov pab pawg ua haujlwm tau zoo tshaj plaws, txo cov sijhawm tsis ua haujlwm, thiab tswj kev ua haujlwm zoo.

Kev Txhawb Nqa Cov Nroog Ntse

Cov nroog ntse siv thev naus laus zis los ua haujlwm tau zoo dua thiab muab kev pabcuam zoo dua rau cov pej xeem. OLTs pab los ntawm kev txuas cov sensors ntse, koob yees duab, thiab lwm yam khoom siv thoob plaws hauv nroog. Yog tias muaj OLT, tag nrho cov khoom siv no sib txuas lus sai thiab sib pauv cov ntaub ntawv tam sim ntawd.

Cov thawj coj hauv nroog siv cov ntaub ntawv no los daws cov teeb meem, txuag hluav taws xob lossis txhim kho tsheb khiav. Tej yam xws li Wi-Fi pub dawb rau chaw nres tsheb lossis kev ceeb toom thaum muaj xwm txheej ceev ceev vam khom OLT txoj kev sib txuas txhim khu kev qha. OLT zoo ua rau cov nroog ntse nyob saum toj kawg nkaus thiab ua kom tib neeg muaj kev nyab xeeb.

Cov Tsev Kawm Ntawv Txuas

Hauv tsev kawm ntawv qib siab thiab tsev kawm qib siab, OLTs txuas ntau lub tsev thiab chav kuaj. Cov tub ntxhais kawm thiab cov kws qhia ntawv xav tau kev sib txuas ceev thiab txhim khu kev qha rau kev qhuab qhia, kev tshaj tawm, thiab kev kawm. Nws yog OLT uas ua rau qhov no tshwm sim los ntawm kev txuas txhua chav thiab cov khoom siv.

Hauv cov tsev kawm ntawv loj, OLT txuas ntau txhiab tus neeg siv thiab ua rau lawv sib qhia cov ntaub ntawv lossis koom tes ua haujlwm tiag tiag. Cov fiber ntseeg siab ua kom kev kawm ntawv sai dua thiab txhawb nqa cov kws qhia ntawv thiab cov tub ntxhais kawm kom tau txais txiaj ntsig ntau dua txhua hnub.

Kev Ruaj Ntseg ntawm Fiber Network

Kev ruaj ntseg hauv cov tes hauj lwm fiber tsis yog tsuas yog hais txog kev ruaj ntseg kho vajtse xwb; nws yog hais txog kev ua kom txhua byte ntawm cov ntaub ntawv tseem zais cia thiab ruaj ntseg. Optical line terminals (OLTs) yog qhov chaw tseem ceeb ntawm cov khoom siv optic broadband no. Lawv tsis tsuas yog xa cov ntaub ntawv xwb; lawv txiav txim siab leej twg tuaj yeem nkag mus rau nws, dab tsi xa mus, thiab nws khaws cia li cas kom ruaj ntseg. OLTs tswj hwm cov tes hauj lwm optical passive loj heev uas ib qho on-signal tau faib thiab faib rau ntau tus, txawm tias ntau pua tus neeg siv, uas txhais tau tias kev ruaj ntseg zoo tsis yog tsuas yog qhov zoo-rau-muaj; nws yog qhov yuav tsum muaj.

Kev lees paub

Kev lees paub yog kev txheeb xyuas seb leej twg tab tom sim txuas. Ntawm OLT, qhov no ua tiav ua ntej cov ntaub ntawv pib ntws. OLT lees paub txhua ONT lossis ONU, feem ntau los ntawm kev tshawb nrhiav tus lej serial, password, lossis LOID. Yog tias koj tsis dhau qhov kev xeem, tsis muaj kev nkag mus.

Qhov no tseem ceeb vim tias ib lub chaw nres nkoj OLT tuaj yeem tswj hwm cov kev sib txuas rau txog li 128 ONUs. Nws yuav tsum paub leej twg yog leej twg, paub qhov txawv ntawm cov khoom siv tiag tiag thiab cov neeg dag ntxias. Cov passwords nyuaj thiab cov ID tshwj xeeb pab tiv thaiv cov neeg nkag mus. OLTs tswj hwm ntau qhov kev lees paub tib lub sijhawm, uas tuaj yeem nyuaj thiab ua kom lub network muaj kev nyab xeeb rau txhua tus.

Kev zais cia

Kev siv encryption yog qhov ua kom koj cov ntaub ntawv ruaj ntseg thaum xa mus. Lub OLT ua rau cov tsheb khiav ntawm nws tus kheej thiab txhua ONU, yog li ntawd yog tias ib tug neeg kov lub fiber, txhua yam lawv pom yog cov ntaub ntawv tsis muaj tseeb. Qhov no tseem ceeb heev thaum lub passive splitter xa cov teeb liab tseem ceeb mus rau ntau tus neeg siv.

Ntau txoj kev siv xws li GPON Serial Number lossis PLOAM password ua kom cov ntaub ntawv zais cia. Kev encryption tsis yog rau kev ceev ntiag tug xwb; nws yog kom ntseeg tau tias tsis muaj leej twg cuam tshuam cov ntaub ntawv thaum mus rau koj. Ntawm koj cov tes hauj lwm uas muaj neeg coob heev, tshwj xeeb tshaj yog nrog cov ntaub ntawv zais cia, qhov no yog qhov ua rau muaj kev sib tsoo.

Kev Tswj Xyuas Kev Nkag Mus

Kev tswj xyuas kev nkag mus yog lub peev xwm los txhais cov cai hais txog leej twg tuaj yeem ua dab tsi ntawm lub network. OLT faib thiab txheeb xyuas cov kev tso cai zoo, xyuas kom meej tias cov neeg siv tsuas yog tuaj yeem nkag mus rau lawv cov ntaub ntawv. Lawv koom tes nrog ntau yam kev tswj hwm kom tswj tau qhov yooj yim thiab kev ruaj ntseg.

Tsuas yog cov khoom siv uas tau tso cai thiaj li tau txais kev nkag mus, thiab OLT ua kom ntseeg tau tias tsis muaj ib tus neeg siv twg tuaj yeem bog down lossis hijack tag nrho lub network. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov kev xa tawm loj uas ONUs los ntawm ntau tus neeg muag khoom yuav tsum sib koom tes yam tsis muaj teeb meem.

Yav tom ntej ntawm OLT Technology

Peb cov kev siv internet hloov pauv sai sai, nrog rau ntau tus ntawm peb xav tau qhov ceev tshaj plaws thiab kev pabcuam tsis muaj teeb meem rau 4K streaming thiab 5G. Cov chaw nres tsheb optical line terminals (OLTs) yog qhov tseem ceeb hauv cov tes hauj lwm fiber broadband, thiab lawv yav tom ntej nyob ntawm lawv lub peev xwm los ua kom tau raws li qhov xav tau ntawm cov tes hauj lwm tshiab. Peb cov khoom siv OLT yuav tsum ua kom sai dua, ntse dua, thiab yoog tau ntau dua los tswj cov kev hloov pauv no kom zoo.

Kev Ceev Siab Dua

Qhov kev xav tau rau cov tsav tsheb rub tawm thiab xa khoom sai Cov neeg muag khoom OLT kom nce qhov ceev. Nrog cov qauv tshiab xws li XG-PON thiab XGS-PON, OLT cov khoom siv tuaj yeem tswj hwm ntau qhov kev sib txuas gigabit, ua kom cov fiber ua raws li cov apps ravenous, los ntawm kev sib tham video mus rau kev ua si huab. Nrog Combo PON OLTs uas muaj peev xwm khiav ntau tus qauv ib zaug, cov neeg muab kev pabcuam hauv internet tuaj yeem daws tau ob qho tib si tam sim no thiab yav tom ntej xav tau hauv ib lub cuab yeej. Super fast OLTs yog qhov zais cia ntawm tom ntej-gen broadband txhua qhov chaw.

Kev Ceev Nce

Qhov ceev dua txhais tau tias txhua lub cuab yeej OLT pabcuam ntau lub tsev lossis chaw ua haujlwm, uas yog qhov tseem ceeb hauv cov nroog uas qhov chaw thiab cov peev txheej tsis tshua muaj. Niaj hnub no OLTs, nruab nrog cov chaw nres nkoj optical network siab heev, cram ntau lub chaw nres nkoj rau hauv lub thawv me dua, txhais tau tias ib daim iav tam sim no pabcuam tag nrho cov zej zog. Qhov no ua kom zoo dua cov nqi thiab txhua txoj hlua fiber, kom ntseeg tau tias cov OLTs ceev siab txhawb nqa kev tswj hwm network zoo rau cov nroog loj thiab cov nroog loj.

Kev Ua Haujlwm Virtual Network

Kev siv network virtualization tso cai rau OLT cov khoom siv ua haujlwm ua ntau yam khoom siv tib lub sijhawm. Nrog SDN thiab NFV, cov neeg teb xov tooj network tuaj yeem sib sau ua ke cov kev pabcuam hauv software, tsis yog kho vajtse, txhim kho kev ua haujlwm ntawm fiber broadband deployments. Qhov no ua rau muaj kev hloov kho sai dua thiab kev siv cov peev txheej zoo dua. Tam sim no lawv muaj peev xwm kho cov tes hauj lwm rau txhua tus neeg siv khoom lossis app, uas zoo heev rau cov nroog ntse thiab IoT. Virtual OLTs muab kev tswj hwm thiab kev ywj pheej ntau dua rau cov pab pawg network.

Kev Sib Koom Tes AI

AI hauv cov khoom siv OLT yog qhov loj heev. AI tuaj yeem ntes tau cov teeb meem ua ntej lawv ua rau muaj kev puas tsuaj hauv cov tes hauj lwm optical. Nws tuaj yeem pab daws teeb meem thiab kho cov tes hauj lwm fiber broadband yam tsis muaj kev pab los ntawm tib neeg. Kev saib xyuas ua ntej txhais tau tias muaj tsawg dua qhov tsis ua haujlwm, ua rau AI-enabled OLTs tseem ceeb rau kev tswj hwm network zoo raws li cov neeg siv xav tau hloov pauv.

Xaus lus

Cov OLTs nyob hauv nruab nrab ntawm cov tes hauj lwm fiber ntau ceev. Lawv tswj kev khiav tsheb, tswj kev sib txuas, thiab txhawb nqa thev naus laus zis yav tom ntej. Txij li cov nroog loj mus rau cov zej zog nyob deb nroog, OLTs ua rau peb nyob twj ywm sib txuas, ua haujlwm tau zoo, thiab koom nrog. Txhua qhov kev nce qib muab kev ceev ceev dua thiab kev sib txuas txhim khu kev qha dua. Piv txwv li, chaw ua haujlwm uas muaj neeg coob coob tuaj yeem ua haujlwm hu xov tooj video tsis muaj teeb meem, thaum tsev neeg tuaj yeem tshaj tawm cov yeeb yaj kiab thiab koom nrog kev ua si tib lub sijhawm. OLTs pab tiv thaiv cov tes hauj lwm los ntawm kev tawm tsam tsis zoo. Thaum cov cuab yeej tshiab dov tawm, OLTs yuav nyob twj ywm. Txhawm rau kom nyob twj ywm, tib neeg tuaj yeem nyeem cov xov xwm thev naus laus zis, sab laj nrog cov kws tshaj lij hauv network, lossis tshuaj xyuas cov lus qhia. Kev nce qib tiag tiag yog ua tiav hauv qhov ntev, yog li txuas ntxiv nug, qhia, thiab koom tes nrog cov neeg uas mob siab rau kev sib txuas ruaj khov, ruaj ntseg.

Cov Lus Nug Feem Ntau

Lub Optical Line Terminal (OLT) yog dab tsi?

Lub davhlau ya nyob twg optical line terminal (OLT) tswj cov ntaub ntawv mus tom ntej los ntawm tus neeg muab kev pabcuam hauv internet mus rau ntau tus neeg siv kawg los ntawm cov kev pabcuam fiber optic.

Lub OLT ua haujlwm li cas hauv lub network fiber?

Ib lub tshuab hluav taws xob optical line terminal, lossis OLT device, txhais cov hluav taws xob mus rau cov teeb liab optical thiab xa cov ntaub ntawv rau cov neeg siv los ntawm kev tswj hwm network zoo. Nws coj cov teeb liab optical los ntawm cov neeg siv thiab rov hloov lawv mus rau cov teeb liab hluav taws xob rau kev ua tiav.

Cov qauv tseem ceeb rau OLTs yog dab tsi?

Cov qauv OLT tseem ceeb, suav nrog GPON thiab EPON, qhia txog yuav ua li cas cov ntaub ntawv xa mus rau hauv cov tes hauj lwm optical.

Vim li cas OLT thiaj tseem ceeb hauv cov tes hauj lwm fiber?

Lub cuab yeej OLT yog qhov tseem ceeb heev vim nws tswj hwm thiab faib cov ntaub ntawv khiav lag luam, xyuas kom meej tias muaj kev sib kis cov ntaub ntawv ceev ceev hauv cov tes hauj lwm fiber broadband thaum tswj hwm kev ruaj khov ntawm lub network.

Lub OLT pab ua kom lub network ruaj ntseg li cas?

Ib lub cuab yeej OLT tuaj yeem txhawb nqa kev encryption thiab kev tswj hwm kev nkag mus, uas yog cov yam ntxwv tseem ceeb uas tiv thaiv cov ntaub ntawv neeg siv hauv lub network optical.

Muaj hom OLT twg?

Cov khoom siv modular thiab standalone OLT muaj nyob, nrog rau modular OLTs uas nthuav dav tau los ntawm kev ntxiv daim npav, thaum standalone OLTs yog cov kab ke ruaj khov uas tsim los rau cov tes hauj lwm optical me me.

Yav tom ntej ntawm OLT thev naus laus zis yog dab tsi?

Saib mus tom ntej, cov khoom siv OLT tau npaj txhij los ua kom sai dua, muaj kev nyab xeeb dua, thiab hloov kho tau zoo dua rau cov tes hauj lwm optical tiam tom ntej. Cov kev tsim kho tshiab no yuav txhim kho kev xa cov ntaub ntawv thiab kev paub ntawm cov neeg siv hauv fiber broadband.