Xhuma i-router kuqala.
Imodemu ye-optical ixhunywe ku-router kuqala bese kuba ku-switch, ngoba i-router idinga ukwaba i-ip, futhi i-switch ayikwazi, ngakho-ke kumele ibekwe ngemuva kwe-router. Uma kudingeka ukuqinisekiswa kwephasiwedi, vele, xhuma kuqala echwebeni le-WAN le-router, bese uxhuma ku-switch kusuka echwebeni le-LAN.
Indlela ikati elikhanyayo elisebenza ngayo
Imodemu ye-baseband yakhiwe ukuthumela, ukwamukela, ukulawula, isikhombikubona, iphaneli yokusebenza, ukunikezwa kwamandla nezinye izingxenye. Idivayisi ye-data terminal inikeza idatha edluliselwe ngesimo sesiginali ye-binary serial, iyiguqula ibe yizinga langaphakathi le-logic ngokusebenzisa i-interface, bese iyithumela engxenyeni ethumelayo, iyishintshe ibe isignali yesicelo somugqa ngesekethe yokuguqula, bese iyithumela emgqeni. Iyunithi eyamukelayo ithola isignali kusuka emgqeni, iyibuyisele esiginalini sedijithali ngemuva kokuhlunga, ukushintshashintsha okuphambene, kanye nokuguqulwa kwezinga, bese iyithumela kudivayisi ye-digital terminal. Imodemu ye-optical iyidivayisi efana nemodemu ye-baseband. Ihlukile kwimodemu ye-baseband. Ixhunywe kumugqa ozinikele we-optical fiber futhi iyisignali ye-optical.
Umehluko phakathi kwemodemu ye-optical, iswishi kanye ne-router
1. Imisebenzi ehlukene
Umsebenzi we-optical modem ukuguqula isignali yomugqa wocingo ibe isignali yomugqa wenethiwekhi ukuze isetshenziswe kwi-inthanethi yekhompyutha;
Umsebenzi we-router ukuxhuma amakhompyutha amaningi ngekhebula lenethiwekhi ukuze kutholakale uxhumano lwe-dial-up olubonakalayo, kutholakale ngokuzenzakalelayo ukuthunyelwa kwamaphakethe edatha kanye nokwabiwa kwamakheli, futhi kunomsebenzi we-firewall. Phakathi kwawo, amakhompyutha amaningi abelana nge-akhawunti ye-broadband, i-inthanethi izothintana.
Umsebenzi weswishi ukuxhuma amakhompyutha amaningi ngekhebula lenethiwekhi elilodwa ukuze kufezwe umsebenzi we-inthanethi ngesikhathi esisodwa, ngaphandle komsebenzi we-router.
2. Ukusetshenziswa okuhlukile
Uma i-modem ye-optical ifinyelela i-fiber ye-optical ekhaya, iswishi kanye ne-router zisebenza ku-LAN, kodwa iswishi isebenza kungqimba yesixhumanisi sedatha, kanti i-router isebenza kungqimba yenethiwekhi.
3. Imisebenzi ehlukene
Kalula nje, i-optical modem ilingana nefektri encane, i-router ilingana nomthengisi othengisa ngobuningi, kanti i-switch ilingana nomsabalalisi wezokuthutha. Isignali ye-analog edluliselwa ngekhebula lenethiwekhi elijwayelekile iguqulwa ibe yisignali yedijithali yi-optical modem, bese isignali idluliselwa kwi-PC nge-router. Uma inani lama-PC lidlula uxhumano lwe-router, udinga ukwengeza i-switch ukuze wandise isikhombimsebenzisi.
Ngokuthuthukiswa kokuxhumana ngefayibha ye-optical, ingxenye yamamodemu e-optical asetshenziswa opharetha manje inemisebenzi yokuqondisa.
Isikhathi sokuthunyelwe: Disemba 17-2021