Very High Speed Digital Subscriber Line 2
-
- Navdušenec
- Prispevkov: 523
- Pridružen: 1. Avg 2007 ob 09:28
- T-2: Že imam
- Paket: 10/2 + IPTV + IPTEL
- Kraj: Ravne na Koroškem
- Kontakt:
Very High Speed Digital Subscriber Line 2
Zanimalo me je kako ponuja VDSL2 amertško podjetje AT&T, in dobil tale odgovor
NAVAJAM:
VDSL2 (Very High Speed Digital Subscriber Line 2) is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for POTS services. It can be deployed from central offices, from fibre-fed cabinets located near the customer premises, or within buildings.
VDSL2 is the newest and most advanced standard of DSL broadband wireline communications. Designed to support the wide deployment of Triple Play services such as voice, video, data, high definition television (HDTV) and interactive gaming, VDSL2 enables operators and carriers to gradually, flexibly, and cost efficiently upgrade existing xDSL-infrastructure.
It has been standardized as ITU G.993.2.
ITU-T G.993.2 (VDSL2) is an enhancement to G.993.1 (VDSL) that permits the transmission of asymmetric and symmetric (Full-Duplex) aggregate data rates up to 200 Mbit/s on twisted pairs using a bandwidth up to 30 MHz.
VDSL2 deteriorates quickly from a theoretical maximum of 250 Mbit/s at 'source' to 100 Mbit/s at 0.5 km (1640 ft) and 50 Mbit/s at 1 km (3280 ft), but degrades at a much slower rate from there, and still outperforms VDSL. Starting from 1.6 km (1 mile) its performance is equal to ADSL2+.
ADSL-like long reach performance is one of the key advantages of VDSL2. LR-VDSL2 enabled systems are capable of supporting speeds of around 1-4 Mbit/s (downstream) over distances of 4 to 5 km (2 ½ to 3 miles), gradually increasing the bit rate up to symmetric 100 Mbit/s as loop-length shortens. This means that VDSL2-based systems, unlike VDSL1 systems, are not limited to short local loops or MTU/MDUs only, but can also be used for medium range applications.
VPRAŠANJE
V tekstu je navedeno, da VDSL deluje s 250 mbit/s in na razdalji do 4-5 km zračne centrale, pri podjetju T-2 pa ista povezava deluje le z 60mbit/s in le na 2500 metrov zračne razdalje
--
LP NOD 32
NAVAJAM:
VDSL2 (Very High Speed Digital Subscriber Line 2) is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for POTS services. It can be deployed from central offices, from fibre-fed cabinets located near the customer premises, or within buildings.
VDSL2 is the newest and most advanced standard of DSL broadband wireline communications. Designed to support the wide deployment of Triple Play services such as voice, video, data, high definition television (HDTV) and interactive gaming, VDSL2 enables operators and carriers to gradually, flexibly, and cost efficiently upgrade existing xDSL-infrastructure.
It has been standardized as ITU G.993.2.
ITU-T G.993.2 (VDSL2) is an enhancement to G.993.1 (VDSL) that permits the transmission of asymmetric and symmetric (Full-Duplex) aggregate data rates up to 200 Mbit/s on twisted pairs using a bandwidth up to 30 MHz.
VDSL2 deteriorates quickly from a theoretical maximum of 250 Mbit/s at 'source' to 100 Mbit/s at 0.5 km (1640 ft) and 50 Mbit/s at 1 km (3280 ft), but degrades at a much slower rate from there, and still outperforms VDSL. Starting from 1.6 km (1 mile) its performance is equal to ADSL2+.
ADSL-like long reach performance is one of the key advantages of VDSL2. LR-VDSL2 enabled systems are capable of supporting speeds of around 1-4 Mbit/s (downstream) over distances of 4 to 5 km (2 ½ to 3 miles), gradually increasing the bit rate up to symmetric 100 Mbit/s as loop-length shortens. This means that VDSL2-based systems, unlike VDSL1 systems, are not limited to short local loops or MTU/MDUs only, but can also be used for medium range applications.
VPRAŠANJE
V tekstu je navedeno, da VDSL deluje s 250 mbit/s in na razdalji do 4-5 km zračne centrale, pri podjetju T-2 pa ista povezava deluje le z 60mbit/s in le na 2500 metrov zračne razdalje
--
LP NOD 32
Na T-2 sem spravil že 1250 uporabnikov
Re: Very High Speed Digital Subscriber Line 2
"theoretical maximum"
to dost pove
to dost pove
-
- Navdušenec
- Prispevkov: 523
- Pridružen: 1. Avg 2007 ob 09:28
- T-2: Že imam
- Paket: 10/2 + IPTV + IPTEL
- Kraj: Ravne na Koroškem
- Kontakt:
Re: Very High Speed Digital Subscriber Line 2
100 Mbit/s na 0.5 km zračne razdalje
to pe še bolj dost pove
to pe še bolj dost pove
Na T-2 sem spravil že 1250 uporabnikov
-
- Starešina
- Prispevkov: 12976
- Pridružen: 17. Mar 2006 ob 14:57
- T-2: Že imam
- Paket: Optika 100/10
Re: Very High Speed Digital Subscriber Line 2
Glede T-2 je to takole: ponujamo max paket 60/25 (stranka lahko vzame tudi še kakšno TV ali 3) in pa max domet na 2500 metrov okvirne zračne (so že nekateri, ki so priklopljeni na več kot 4.0 km žice).
Optika 100/10
-
- Navdušenec
- Prispevkov: 523
- Pridružen: 1. Avg 2007 ob 09:28
- T-2: Že imam
- Paket: 10/2 + IPTV + IPTEL
- Kraj: Ravne na Koroškem
- Kontakt:
Re: Very High Speed Digital Subscriber Line 2
NN, če vam uspe dvigiti povezano na 200 mbit/s, se bo domet optimalnega delovanja storitev dvignil najmanj na 5000 metrov zračne razdalje
Na T-2 sem spravil že 1250 uporabnikov
-
- Starešina
- Prispevkov: 12976
- Pridružen: 17. Mar 2006 ob 14:57
- T-2: Že imam
- Paket: Optika 100/10
Re: Very High Speed Digital Subscriber Line 2
Med drugim je pomembna tudi debelina (presek parice)!
Optika 100/10
-
- Navdušenec
- Prispevkov: 523
- Pridružen: 1. Avg 2007 ob 09:28
- T-2: Že imam
- Paket: 10/2 + IPTV + IPTEL
- Kraj: Ravne na Koroškem
- Kontakt:
Re: Very High Speed Digital Subscriber Line 2
Do 5000 metrov zračne razdalje se da rešit z ojačevalcem, za daljše razdalje od centrale pa ne vem
Na T-2 sem spravil že 1250 uporabnikov
-
- Starešina
- Prispevkov: 12976
- Pridružen: 17. Mar 2006 ob 14:57
- T-2: Že imam
- Paket: Optika 100/10
Re: Very High Speed Digital Subscriber Line 2
Potrebno je tudi dosledno upoštevati pravila, ki jih postavi lastnik paric - v Sloveniji je to Telekom.
Optika 100/10
-
- Nergač
- Prispevkov: 1197
- Pridružen: 23. Mar 2006 ob 17:05
- T-2: Še nimam
- Paket: 700/60
- Kraj: Ind. cona Celje Vzhod
Re: Very High Speed Digital Subscriber Line 2
Pol pa svizec zavije čokolado. Seveda se vse da, samo interesa ni.NOD 32 napisal/-a:Do 5000 metrov zračne razdalje se da rešit z ojačevalcem, za daljše razdalje od centrale pa ne vem
http://WWW.power-server.si ( v izdelavi)