Optical modem thiab router yog ob yam khoom siv sib txawv, txhua tus ua lub luag haujlwm tshwj xeeb hauv kev sib txuas hauv network.
Ua ntej, qhov kho qhov muag modem-tseem hu ua optical terminal unit- yog ib qho khoom siv uas hloov cov teeb liab kho qhov muag rau hauv cov teeb liab hluav taws xob. Lo lus "optical" nyob rau hauv nws lub npe yog hais txog cov teeb no -raws li cov teeb liab, ib qho kev taw qhia txog lawv cov kis tau tus mob ceev heev. Nyob rau hauv cov ntsiab lus ntawm kev sib txuas hauv network, optical modem plays lub luag haujlwm tseem ceeb: nws tau txais cov teeb liab kho qhov muag xa los ntawm fiber ntau -optic trunk kab thiab hloov lawv mus rau hauv cov teeb liab hluav taws xob uas tuaj yeem lees paub los ntawm cov khoom siv xws li khoos phis tawj thiab routers.
Tom ntej no, lub router yog lub network ntaus ntawv feem ntau tsim los cuam tshuam ntau yam khoom siv thiab pab kom lawv sib koom ib qho kev sib txuas hauv internet. Los ntawm kev siv cov txheej txheem hloov pauv, lub router tsim kom muaj kev ywj pheej hauv cheeb tsam hauv cheeb tsam Network (LAN), tso cai rau kev sib txuas ntawm ntau yam khoom siv thiab kev pabcuam wireless network.
Optical modems thiab routers txhua tus ua tiav lawv cov haujlwm tshwj xeeb. Optical modem feem ntau yog lub luag haujlwm rau lub teeb liab hloov dua siab tshiab thiab nkag mus rau hauv lub network, whereas lub router tswj kev sib txuas ntawm cov khoom siv thiab kev sib kis ntawm cov ntaub ntawv ntawm lawv. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias, txawm hais tias optical modems thiab routers ua haujlwm raws li kev ywj pheej, lawv feem ntau yuav tsum tau siv hauv tandem los tsim kom muaj kev sib txuas ua haujlwm. Hauv lwm lo lus, koj xav tau qhov kho qhov muag modem kom tau txais cov teeb liab kho qhov muag xa los ntawm koj lub Chaw Pabcuam Is Taws Nem (ISP) thiab hloov lawv mus rau hauv cov teeb liab hluav taws xob; Tom qab ntawd, koj siv lub router los faib cov teeb liab hluav taws xob rau ntau yam khoom siv hauv koj lub tsev.
