Ma Network a AON vs PON: Zosankha za Fiber-to-the-Home FTTH Systems

Fiber to the Home (FTTH) ndi njira yomwe imayika ma fiber optics kuchokera pakati kupita ku nyumba zosiyanasiyana monga nyumba ndi nyumba zogona. Kugwiritsa ntchito FTTH kwapita patsogolo kwambiri ogwiritsa ntchito asanayambe kugwiritsa ntchito fiber optics m'malo mwa mkuwa kuti azitha kugwiritsa ntchito intaneti ya broadband.

Pali njira ziwiri zofunika zogwiritsira ntchito netiweki ya FTTH yothamanga kwambiri:maukonde ogwiritsira ntchito kuwala(AON) ndi kungokhala chetemaukonde owonera(PON).

Kotero maukonde a AON ndi PON: kusiyana kwake ndi kotani?

Kodi netiweki ya AON ndi chiyani?

AON ndi kapangidwe ka netiweki yolunjika mbali imodzi pomwe wolembetsa aliyense amakhala ndi mzere wake wa fiber optic womwe umathetsedwa pa optical concentrator. Netiweki ya AON imaphatikizapo zida zosinthira zamagetsi monga ma rauta kapena ma switching aggregators kuti azisamalira kugawa kwa ma signal ndi ma directional signaling kwa makasitomala enaake.

Maswichi amayatsidwa ndi kuzimitsidwa m'njira zosiyanasiyana kuti atsogolere zizindikiro zolowera ndi zotuluka kumalo oyenera. Kudalira kwa netiweki ya AON pa ukadaulo wa Ethernet kumapangitsa kuti kulumikizana pakati pa opereka chithandizo kukhale kosavuta. Olembetsa amatha kusankha zida zomwe zimapereka mitengo yoyenera ya data ndikukulitsa zosowa zawo pamene zosowa zawo zikuwonjezeka popanda kusinthanso netiweki. Komabe, ma netiweki a AON amafunikira chophatikiza chimodzi cha switch pa wolembetsa aliyense.

Kodi netiweki ya PON ndi chiyani?

Mosiyana ndi ma network a AON, PON ndi kapangidwe ka ma network a point-to-multipoint komwe kamagwiritsa ntchito ma passive splitters kuti alekanitse ndikusonkhanitsa ma optical signals. Ma fiber splitters amalola ma network a PON kuti atumize olembetsa angapo mu fiber imodzi popanda kufunikira kuyika ma fiber osiyana pakati pa hub ndi wogwiritsa ntchito womaliza.

Monga momwe dzinalo likusonyezera, ma network a PON saphatikizapo zida zosinthira zamagetsi komanso ma fiber bundle ogawana magawo a netiweki. Zipangizo zogwira ntchito zimangofunika kumapeto kwa chizindikirocho komwe kumachokera komanso komwe chimalandira.

Mu netiweki ya PON yachizolowezi, chogawanitsa cha PLC ndiye chimake. Ma tap a fiber optic amaphatikiza ma siginecha angapo a kuwala kukhala chotulutsa chimodzi, kapena ma tap a fiber optic amatenga cholowetsa chimodzi cha kuwala ndikuchigawa ku zotulutsa zingapo. Ma tap awa a PON ndi a mbali ziwiri. Kuti zikhale zomveka, ma siginecha a fiber optic amatha kutumizidwa pansi kuchokera ku ofesi yapakati kuti afalitsidwe kwa olembetsa onse. Ma siginecha ochokera kwa olembetsa amatha kutumizidwa pamwamba ndikuphatikizidwa kukhala ulusi umodzi kuti alankhule ndi ofesi yapakati.

Ma Network a AON vs PON: Kusiyana ndi Zosankha

Ma network a PON ndi AON onse amapanga msana wa fiber optic wa dongosolo la FTTH, zomwe zimathandiza anthu ndi mabizinesi kupeza intaneti. Musanasankhe PON kapena AON, ndikofunikira kumvetsetsa kusiyana pakati pawo.

Kugawa Zizindikiro

Ponena za maukonde a AON ndi PON, kusiyana kwakukulu pakati pawo ndi momwe chizindikiro cha kuwala chimagawidwira kwa kasitomala aliyense mu dongosolo la FTTH. Mu dongosolo la AON, olembetsa ali ndi ma bundles apadera a ulusi, zomwe zimawalola kuti azitha kupeza bandwidth yomweyo, osati yogawana. Mu netiweki ya PON, olembetsa amagawana gawo la fiber bundle ya netiweki mu PON. Zotsatira zake, anthu ogwiritsa ntchito PON angaonenso kuti makina awo ndi ochedwa chifukwa ogwiritsa ntchito onse amagawana bandwidth yomweyo. Ngati vuto lachitika mkati mwa dongosolo la PON, zingakhale zovuta kupeza komwe kwayambitsa vutoli.

Ndalama

Ndalama zambiri zomwe zimagwiritsidwa ntchito pa netiweki ndi mtengo wogwiritsa ntchito zida zoyendetsera magetsi ndi kukonza. PON imagwiritsa ntchito zida zosafunikira zomwe zimafuna kukonza pang'ono komanso zopanda magetsi kuposa netiweki ya AON, yomwe ndi netiweki yogwira ntchito. Chifukwa chake PON ndi yotsika mtengo kuposa AON.

Kutalikirana ndi Kugwiritsa Ntchito

AON imatha kunyamula mtunda wa makilomita 90, pomwe PON nthawi zambiri imakhala ndi malire ndi zingwe za fiber optic cable mpaka makilomita 20. Izi zikutanthauza kuti ogwiritsa ntchito PON ayenera kukhala pafupi ndi chizindikiro choyambira.

Kuphatikiza apo, ngati ikugwirizana ndi pulogalamu kapena ntchito inayake, zinthu zina zingapo ziyenera kuganiziridwa. Mwachitsanzo, ngati ntchito za RF ndi makanema ziyenera kuperekedwa, ndiye kuti PON nthawi zambiri ndiyo yankho lokhalo lothandiza. Komabe, ngati ntchito zonse zimachokera ku Internet Protocol, ndiye kuti PON kapena AON zingakhale zoyenera. Ngati pali mtunda wautali ndipo kupereka mphamvu ndi kuziziritsa kuzinthu zogwira ntchito m'munda kungakhale kovuta, ndiye kuti PON ikhoza kukhala chisankho chabwino kwambiri. Kapena, ngati kasitomala wofunidwayo ndi wamalonda kapena polojekitiyi ikuphatikizapo nyumba zambiri, ndiye kuti netiweki ya AON ikhoza kukhala yoyenera kwambiri.

Ma Network a AON vs. PON: Ndi FTTH iti yomwe mumakonda?

Posankha pakati pa PON kapena AON, ndikofunikira kuganizira ntchito zomwe zidzaperekedwe kudzera pa netiweki, topology yonse ya netiweki, ndi makasitomala akuluakulu omwe ndi ndani. Ogwira ntchito ambiri agwiritsa ntchito ma netiweki onsewa m'njira zosiyanasiyana. Komabe, pamene kufunika kwa mgwirizano wa netiweki ndi kukula kwake kukupitirira kukula, mapangidwe a netiweki akulola kuti ulusi uliwonse ugwiritsidwe ntchito mosinthana mu mapulogalamu a PON kapena AON kuti akwaniritse zofunikira zamtsogolo.