ADSL
Asymmetric digital subscriber line (asimetrična digitalna pretplatnička linija),[1] poznatija po skraćenici ADSL, jest vrsta digitalne pretplatničke linije (DSL) koja omogućava veću propusnost podataka preko bakarnih telefonskih linija u odnosu na dial-up. Razlikuje se od znatno rjeđe simetrične digitalne pretplatničke linije (symmetric digital subscriber line ili SDSL). U ovom kontekstu, riječ "asimetrična" označava da protok i brzina u bitovima nije jednaka u oba smjera, odnosno da je brzina preuzimanja (download) veća od brzine slanja (upload) podataka. Pružaoci širokopojasnog interneta koji nude ovu vrstu veze najčešće označavaju da je njena glavna namjena preuzimanje sadržaja s interneta, a ne dijeljenje/slanje sadržaja drugima.
Standardi ADSL-a
| Verzija | Naziv standarda | Uobičajeni naziv | Dovodna brzina | Odvodna brzina | Datum odobrenja |
|---|---|---|---|---|---|
| ADSL | ANSI T1.413-1998 Issue 2 | ADSL | 8,0 Mbit/s | 1,0 Mbit/s | 1998. |
| ITU G.992.2 | ADSL Lite (G.lite) | 1,5 Mbit/s | 0,5 Mbit/s | 7. 1999. | |
| ITU G.992.1 | ADSL (G.dmt) | 8,0 Mbit/s | 1,3 Mbit/s | 7. 1999. | |
| ITU G.992.1 Annex A | ADSL preko POTS-a | 12,0 Mbit/s | 1,3 Mbit/s | 2001. | |
| ITU G.992.1 Annex B | ADSL preko ISDN-a | 12,0 Mbit/s | 1,8 Mbit/s | 2005. | |
| ADSL2 | ITU G.992.3 Annex L | RE-ADSL2 | 5,0 Mbit/s | 0,8 Mbit/s | 7. 2002. |
| ITU G.992.3 | ADSL2 | 12,0 Mbit/s | 1,3 Mbit/s | 7. 2002. | |
| ITU G.992.3 Annex J | ADSL2 | 12,0 Mbit/s | 3,5 Mbit/s | 7. 2002. | |
| ITU G.992.4 | ADSL2 bez razdjelnika | 1,5 Mbit/s | 0,5 Mbit/s | 7. 2002. | |
| ADSL2+ | ITU G.992.5 | ADSL2+ | 24,0 Mbit/s | 1,4 Mbit/s | 5. 2003. |
| ITU G.992.5 Annex M | ADSL2+M | 24,0 Mbit/s | 3,3 Mbit/s | 2008. |
Također pogledajte
Reference
- ^ "Asynchronous DSL | networking technology". Encyclopedia Britannica (jezik: engleski). Pristupljeno 5. 9. 2018.
Vanjski linkovi
ADSL na Wikimedia Commonsu
Content Disclaimer
Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.
- The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
- There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
- It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
- Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
- Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.
