Ukuhlola umehluko phakathi kwe-ONT, Ont, SFU, ne-HGU.

Uma kukhulunywa ngemishini eseceleni komsebenzisi ekufinyeleleni kwe-Broadband Kusho ukuthini la magama? Uyini umehluko?

1. I-ONSUS NOTTS

Izinhlobo eziphambili zohlelo lokusebenza lwe-Broadband Optical Fiber Fiber afake phakathi: I-FTTH, FTTO, ne-FTTB, futhi izinhlobo zemishini eseceleni yomsebenzisi zihlukile ngaphansi kwezinhlobo ezihlukile zohlelo lokusebenza. Imishini eseceleni yomsebenzisi ye-FTTH ne-FTTO isetshenziswa ngumsebenzisi oyedwa, obizwa nge-OTT (i-Optical Network terminal, i-Optical Network terminal), kanye nemishini eseceleni yomsebenzisi ye-FTTB yabiwe ngabasebenzisi abaningi, okubizwa ngokuthi yi-Optical Network iyunithi yenethiwekhi).

Umsebenzisi okukhulunywe ngalokhu ubhekisela kumsebenzisi okhokhiswa ngokuzimela ngu-opharetha, hhayi inani lama-terminals asetshenzisiwe. Isibonelo, i-ATT ye-FTTH ivame ukwabiwa ngama-terminals amaningi ekhaya, kepha ngumsebenzisi oyedwa kuphela ongabalwa.

2. Izinhlobo ze-ONTS

InganiYilokho esivame ukubizela ngemodemu ye-Optical Modem, ehlukaniswe i-SFU (iyunithi lomndeni owodwa, iyunithi lomndeni owodwa), i-HGU (Iyunithi Yesango Lasekhaya, iyunithi yebhizinisi lasekhaya) ne-SBU (Iyunithi Yebhizinisi elilodwa).

2.1. I-SFU

I-SFU ngokuvamile inezinhlaka ezi-1 kuya kwayi-4, 1 kuya kwezingu-2 ezihleliwe ngocingo, kanti ezinye izinhlobo zibuye zibe nezindawo ze-Cable TV. I-SFU ayinawo umsebenzi wesango lasekhaya, futhi i-terminal kuphela exhunywe echwebeni ethernet ingashayela ukuze ifinyelele ku-inthanethi, futhi umsebenzi wokuphatha kude ubuthakathaka. Imodemu yokubona esetshenziswe ekuqaleni kwe-FTTH ingeyakwa-SFU, okungavamile ukusetshenziswa manje.

2.2. I-hgus

Amamodemu we-Optical ahlonyelwe abasebenzisi base-FTTT evulwe eminyakeni yamuva nje yi-HGU. Uma kuqhathaniswa ne-SFU, i-HGU inezinzuzo ezilandelayo:

(1) I-HGU iyithuluzi lesango, elilungele ukuxhumana kwasekhaya; Ngenkathi i-SFU iyithuluzi lokuhambisa elisobala, elingenawo amandla we-Gateway, futhi ngokuvamile lidinga ukubambisana kwamadivayisi wesango afana nama-router asekhaya ezingosini zasekhaya.

(2) I-HGU isekela imodi yokuguqula futhi inomsebenzi we-NAT, okuyithuluzi lesendlalelo-3; Ngenkathi i-SFU Thayipha isekela kuphela imodi yokubhuka yesendlalelo-2, elingana nokushintshwa kwesendlalelo-2.

. Ngenkathi i-SFU kufanele ishayelwe ikhompyutha yomsebenzisi noma umakhalekhukhwini noma nge-router yasekhaya.

(4) I-HGU ilula ekuphathweni okuphezulu nokuphathwa kokulungisa.

I-HGU imvamisa iza ne-wifi futhi inechweba le-USB.

2.3. Inhlamvu

I-SBU isetshenziselwa kakhulu ukufinyelela komsebenzisi we-FTTO, futhi ngokuvamile inesibonisi se-Ethernet, kanti amanye amamodeli anesibonisi se-E1, isikhombimsebenzisi esibonakalayo, noma umsebenzi we-wifi. Uma kuqhathaniswa ne-SFU ne-HGU, i-SBU inokusebenza okungcono kukagesi nokuqina okuphezulu, futhi kuvame ukusetshenziswa ezindaweni ezingaphandle njengokubhekwa kwevidiyo.

3. Uhlobo lwe-Onu

I-Onu ihlukaniswe yi-MDU (iyunithi yokuhlala eminingi, iyunithi ye-Multi-Remident) kanye neMTU (Iyunithi Eningi Abaqashi, Iyunithi Ehlukahlukene).

I-MDU isetshenziselwa kakhulu ukufinyelela kwabasebenzisi abaningi bendawo yokuhlala ngaphansi kohlobo lwesicelo se-FTTB, futhi ngokuvamile inezindawo okungenani ezi-4 eziseceleni, imvamisa ezinamabhodwe angama-8, 16, ama-FE noma Fe +.

I-MTU isetshenziselwa ikakhulukazi ukufinyelela kwabasebenzisi bebhizinisi abaningi noma ama-terminals amaningi ebhizinisini elifanayo kwi-FTTB scenario. Ngaphezu kwesibonisi se-Ethernet kanye nesixhumi esibonakalayo socingo esinqunyelwe, kungenzeka futhi kube nesibonisi se-E1; Ukwakheka kanye nomsebenzi we-MTU ngokuvamile akufani nalezo zeMDU. Umehluko, kepha ukusebenza ngogesi kungcono futhi ukuqina kuphakeme. Ngokuthandwa yi-FTTO, izimo zohlelo lokusebenza ze-MTU ziya zincane futhi zincane.

4. Isifinyezo

Ukufinyelela kwe-Broadband Optical Fiber ngokuyinhloko okwamukela ubuchwepheshe be-pon. Lapho uhlobo oluthile lwemishini eseceleni komsebenzisi aluhlukaniswanga, imishini eseceleni yomsebenzisi yohlelo lwe-PON lungabizwa ngokuthi yi-ONU.

I-Onu, Ont, SFU, i-HGU ... Lawa madivayisi achaza imishini eseceleni yomsebenzisi yokufinyelela kwe-Broadband kusuka kuma-engeli ahlukene, futhi ubudlelwano phakathi kwabo bukhonjiswa kwisibalo esingezansi.