Ib tus neeg siv xov tooj digital (DSL) siv cov xov tooj uas twb muaj lawm los xa cov kev siv internet ceev ceev. DSL muab kev nkag mus rau qhov no yam tsis tau khi cov xov tooj, raws li kev sib txuas hauv internet dial-up ua.
Piv rau qhov ua tau zoo ntawm kev pabcuam cable hauv internet, DSL ceev tau qeeb me ntsis tom qab keeb kwm. Txawm li cas los xij, qhov ceev ntawm DSL kev sib txuas hauv Is Taws Nem nce ntxiv raws li thev naus laus zis txhim kho thiab cov neeg muab kev pabcuam txhim kho lawv cov kev sib txuas hauv network.
DSL nrawm sib txawv nyob ntawm tus kws kho mob koj xaiv thiab cov pob khoom uas tus kws kho mob muab. Txawm tias koj cov cuab yeej cuam tshuam rau kev ceev. Yog tias koj siv lub router wireless thiab koj lub computer nyob deb ntawm lub router, koj tuaj yeem xav tias yuav qeeb qeeb. Yog tias koj lub router lossis PC yog qhov qub, qhov qub yuav tshwm sim.
DSL Ceev npaum li cas?
Qhov nruab nrab DSL internet ceev yuav luag nrawm li kev sib txuas hauv internet cable. Txawm li cas los xij, kev sib txuas ntawm cable feem ntau yog sib koom nrog lwm tus neeg siv hauv koj cheeb tsam, ua rau qeeb qeeb. Cov kev pabcuam DSL tsis tau koom nrog lwm tus, yog li koj cov neeg nyob ze cov haujlwm tsis cuam tshuam rau koj qhov nrawm.
DSL nrawm sib txawv los ntawm kev xaiv pob. Yog tias koj npaj siab saib binge-saib cov ntsiab lus streaming, koj yuav xav tau pob ceev tshaj plaws uas koj tus kws kho mob muab. Yog tias koj tsis nyob online 24/7, ib qho ntawm cov nqi pheej yig dua tab sis cov pob qeeb qeeb yuav yog rau koj. Feem ntau cov chaw muab kev pabcuam muaj kev xaiv ntawm DSL cov kev pabcuam nrog cov bandwidths sib txawv.
Piv txwv li, AT&T muaj ib qib kev pabcuam uas xa nrawm txog 6 Mbps thiab lwm qib uas xa mus txog 100 Mbps (VDSL lossis Very-high-bit-rate DSL). Cov phiaj xwm qeeb qeeb, tsis tshua kim ua haujlwm zoo rau kev tshaj xov xwm, tshawb nrhiav, thiab email. Txoj kev npaj nrawm dua yog qhov zoo dua rau gamers thiab TV binge-watchers. Rau kev sib piv cable ceev, lawv cov phiaj xwm fiber ntau muaj txog 1000 Mbps.
Yog tias koj qhov chaw nyob yog xaim rau fiber ntau optics, koj tuaj yeem tau txais DSL nrawm dua. Verizon muab cov pob nrog 100 Mbps, 300 Mbps, thiab Gigabit ceev. Tsawg tus paub thiab tsis ze li qhov dav, Google Fiber muaj qhov ceev ntawm 1 Gbps.
DSL rub tawm thiab rub tawm nrawm
Koj qhov ceev ntawm DSL tuaj yeem hloov pauv nyob ntawm seb koj siv lub network li cas.
DSL cov chaw muab kev pabcuam feem ntau tshaj tawm qhov nrawm ntawm lawv cov kev pabcuam siv kev sib txuas ntawm ob tus lej bandwidth: ib qho rau rub tawm nrawm thiab ib qho rau kev rub tawm nrawm. Tshawb xyuas ob qho tib si rub tawm thiab rub tawm nrawm thaum xaiv tus kws kho mob.
Cov kev pabcuam DSL nyob hauv tsev feem ntau muab kev rub tawm sai dua li kev rub tawm vim tias feem ntau cov neeg siv khoom siv sijhawm ntau rub tawm cov haujlwm. Qhov kev npaj no yog hu ua asymmetric DSL (ADSL) kev pabcuam. Hauv ADSL, qhov kev rub tawm ceev yog siab dua li qhov ceev upload. Nrog symmetric DSL (SDSL), ob tus lej yog tib yam.
DSL Qhov Sib Txawv Ceev Ntawm Tsev Neeg
Qhov ntsuas qhov siab tshaj plaws ntawm kev sib txuas DSL feem ntau tsis tuaj yeem ncav cuag, thiab qhov ceev ceev sib txawv ntawm tsev neeg. Yam cuam tshuam rau DSL ceev suav nrog:
- Zoo ntawm kab xov tooj ntawm koj qhov chaw nyob: Cov neeg nyob ib puag ncig nrog cov xov tooj zoo dua tuaj yeem ua tiav me ntsis nrawm dua DSL. Fiber-optic kab txawm sai dua.
- Qhov kev ncua deb ntawm lub hub thiab tsev: Qhov ntev ntawm cov xov tooj ntawm qhov chaw nyob thiab lub tuam txhab xov tooj hub cuam tshuam rau kev ceev. DSL thev naus laus zis yog qhov kev ncua deb vim tias nws qhov kev ua tau zoo txo qis thaum koj mus deb ntawm lub hub.
- Kev pabcuam glitches: Thaum ib txwm nyob tas li, DSL ceev tuaj yeem poob sai yog tias tus neeg muab kev pabcuam muaj teeb meem nrog nws lub network. Kev nrawm feem ntau rov qab mus rau qhov qub tom qab ob peb feeb.
Luv luv ntawm kev rov xa lawv qhov chaw nyob, cov neeg siv khoom tuaj yeem ua tau me ntsis txog kev hloov qee yam. Txawm li cas los xij, lwm yam tuaj yeem hloov pauv los txhim kho kev sib txuas ceev.
Teeb tsa koj lub router ze ntawm cov khoom siv uas koj siv los nkag rau hauv is taws nem. Muab lub router tso rau hauv chav nyob deb lossis ze ntawm lub teeb liab cuam tshuam, xws li los ntawm lub qhov cub microwave, degrades qhov ceev ntawm DSL kev twb kev txuas.
Lwm yam hloov pauv uas koj tuaj yeem tswj tau uas cuam tshuam rau koj qhov kev sib txuas DSL nrawm suav nrog:
- Spyware ntawm lub khoos phis tawj: Txawm tias thaum DSL network ua haujlwm ntawm qhov nrawm, spyware cov kev pab cuam yuav haus bandwidth, nyiag koj ceev. Khiav cov kev pab cuam tiv thaiv spyware tsis tu ncua ntawm tes hauj lwm los tiv thaiv qhov teeb meem no.
- Cov xaim tsis raug lossis wireless router: Routers zaum ntawm koj lub khoos phis tawj thiab cov khoom siv mobile thiab kev sib txuas hauv internet. Ib lub router uas tsis ua haujlwm zoo tuaj yeem txwv DSL ceev. Txuas ib ntus txuas lub computer ncaj qha rau hauv internet tuaj yeem pab kuaj xyuas qhov xwm txheej no.
- Slow wireless network txuas: Kev sib txuas Wi-Fi qeeb ntawm lub khoos phis tawj thiab lub wireless hauv tsev yuav tsis ua raws li qhov ceev ntawm DSL internet kev twb kev txuas. Kev yuav ib lub router tshiab los txhim kho qhov zoo ntawm kev sib txuas Wi-Fi daws qhov teeb meem no.
- khoos phis tawj qub: Cov khoos phis tawj qub uas tsis muaj lub zog ua haujlwm txaus lossis lub cim xeeb tsis tuaj yeem ua kom nrawm nrog kev sib txuas siab DSL. Koj tuaj yeem txheeb xyuas qhov teeb meem no los ntawm kev sib piv DSL ceev ntawm ob lub khoos phis tawj ntawm koj qhov chaw nyob.
