IiNkonzo zeLookup zokuLungisa kunye neeNkalo ezichaphazela ukufumaneka kwe-DSL
I-DSL (I-Digital Subscriber Line) Inkonzo ye-Intanethi ephakamileyo ekhoyo kwiindawo ezininzi kodwa kungekhona kwezinye ezininzi. Izinto ezininzi zobugcisa zinciphisa ukuhanjiswa kweenkonzo ze-DSL njengoko kuchazwe ngezantsi.
Ukuhlola ukufumaneka kwe-DSL
Ungaqwalasela ukuba i-DSL ifumaneka kwindawo yakho nje ngokufaka idilesi okanye inombolo yefowuni kwenye yeenkonzo ze-DSL zokungena kwi-intanethi. C | Umnxeba, umzekelo, unikela le ndawo ukujonga ukufumaneka kwe-DSL kunye nezinye iintlobo zeenkonzo ze-Intanethi:
- Ukufikelela kwi-intanethi kwi-cnet.com
Ezi nkonzo ze-intanethi zibika imeko yeenkonzo ze- intanethi kwiindawo eziqhelekileyo kwaye zichanekile ixesha elininzi. Ukuba i-lookup ibonisa inkonzo ye-DSL ayitholakali kwindawo yakho, ukuba kunokwenzeka ukuba inkonzo isandulwe kutshanje (zithetha kwiiveki ezimbalwa zokugqibela). Ngakolunye uhlangothi, nokuba i-lookup ibonisa iDSL ikhona kwindawo yakho, usenokujamelana nobunzima ekubhaliseni njengoko kuchaziwe ngezantsi.
Umgangatho woLwazi lweSDL
Ukuze uvumeleke kwiNkonzo ye-DSL, umgca wakho wefowuni kufuneka ufaneleke ngumniki-nkonzo . Le yinkqubo eyenziwa ngumniki kunye nabachwepheli babo xa uqala ukubhalisela inkonzo. Imilinganiselo embalwa yobugcisa inokuthintela ukuhlala kwakho ukufumana i-DSL:
Umda wokumitha - I- teknoloji ye-DSL ibangabala . Ngamafutshane, ithetha ukuba indawo yokuhlala kufuneka ibe khona kwindawo ethile (ngokuqhelekileyo malunga ne-18000 ft / 5 km) kude nomnxeba wenkampani yendawo yeefowuni (ebizwa ngokuba yi-ofisi ephakathi okanye utshintshiselwano loluntu). Kwiimeko ezinqabileyo, ummelwane wakho ekhoneni angakwazi ukufumana i-DSL kodwa awukwazi, ngenxa yalo mda umda. Yingakho abantu abahlala kwimimandla yasemaphandleni abakwazi ukubhalisela inkonzo ye-DSL.
Ubunjani bomgca - Ezinye iinkcukacha zobuchwepheshe obuphantsi kweendlela ezingaphandle kolawulo lwakho zichonga ukuba ingaba umnxeba ungeyomgangatho okwaneleyo kagesi ukuxhasa iDSL. Ezi ziquka ukubakho kwemikhoyili yomthwalo . Ikhoyili yomthwalo iyisisombane esincinci sombane esiphucula ubuchule bomgca wokudlulisela ilizwi lomntu. Iinkampani zonxibelelwano zafowuni zifake ezi zixhobo kwiimizila kule minyaka ukuphucula umgangatho wenkonzo yabo. Kodwa ngokugqithisileyo, ngelixa iipilisi zokulayisha zisebenza ngokufanelekileyo kwii-low (voice) ii-frequencies, zichaphazela kakubi iifom ephezulu (iDSL data). Inkonzo ye-DSL ngokubanzi ayisebenzanga ngaphezu kwemikhoyili yokulayisha.
Ukufumaneka kwe-Bandwidth ye-DSL
Umnatha womnatha wenethiwekhi ekugqibeleni uya kuvuya kunye ne-DSL inokuxhomekeka kumncedisi wocingo wenkonzo. Ingaba umda phakathi kweendawo zokuhlala kunye ne-hub yomnikezeli wenkonzo, i-DSL engaphantsi kwemigangatho ingakwazi ukuxhasa. Ngokufanayo, ubungakanani bayo (ukulinganisa i-wire) kunokuchaphazela ukusebenza. Ummelwane wakho phantsi kwebloko unokufumana ngokukhawuleza (okanye ngokukhawuleza) uxhumano lwe- intanethi ye-DSL kwesi sizathu.
I-bandwidth ephezulu ye- Asymmetric Digital Subscriber Line (ADSL) etholakalayo ukulandwa kwe-intanethi ngokubhekisele kubude befowuni yefowuni iboniswe ngezantsi. Iirhafu zedata zinikezelwa kwiiyunithi zee kilobits ngesibini (Kbps) :
- 8,448 Kbps kwi-9,000 ft okanye ngaphantsi
- 6,312 Kbps ukuya kwi-12,000 ft.
- 2,048 Kbps ukuya kwi-16,000 ft.
- 1,544 Kbps ukuya kwi-18,000 ft.
Njengoko ubude befowuni yefowuni buyanda, ukufumaneka kwe-DSL bandwidth kunciphisa ukulayisha kunye nokulandwa. Umzekelo oboniswe ngentla usekelwe kwi-wiring ye-24-gauge wiring; Ukusebenza kunciphisa ngakumbi xa u-26-gauge wire ikhona kwi-loop.