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DSL
The newer high speed alternative to cable modems is the DSL family. Why do I call
this the DSL family as
opposed to ADSL? Well because there are many many many flavours and
varients of DSL, but
yes the most popular right now is ADSL.
DSL stands for Digital
Subscriber Line and this service is usually offered through your phone
company/ISP. Most major cities have some neighbourhoods where DSL is available. Like Cable Modems,
there is no need to "dial up" when using DSL because as long as
your computer is turned on, you are
conneted to the internet. But unlike cable modems, you don't share your
bandwidth with others in your
neighbourhood, thus you get full bandwidth all the time.
There are many types of DSL out there right now.
One of the more popluar versions of DSL is the "Lite"
version, or G.Lite. This standard usually prodcues speeds of around 1 Mbps
to 1.5 Mbps downstream and
128kbps to 512kbps upstream. The ITO (International Telecommunications
Union) has recognized this
standard as, G.992.2.
ADSL service has been getting some bad publicity lately, but then again so
did cable modems when they
first were introduced into service. The problem with DSL service isn't usually
the DSL Modems, its the
telco's CO (central office or switch) that's the most troublesome. Most
problems relate to timing
problems or faulty cards at the CO. The telco's are still learning the ISP
world and supporting a new
service like DSL is a
very very new and complex issue for them, and unfortunately many telco/DSL
providers are running into a number of bumps along the way. The DSL modems are quite
stable usually, much
much more stable then a V.90 modem in my opinion. One other issue with DSL service is that not
all
Teclo's/DSL providers
are adhering to a common standard. I've seen quite a few proprietary
standards out
there which will make it difficult for the average buyer to go to the
nearest computer store, buy a
DSL modem, plug it in,
subscribe to a service and start surfing easily.. This will eventually all
get
sorted out down the road in the near future though.
- DSL
Sourcebook, 2nd Edition EXCELLENT!!!!
- DSL Project Directory
- FCC Broadband Resource
Guide
- DSL: Driving High-Speed
Data Through Phone Lines
ADSL Modem/Router Manufacturers:
- 3Com DSL Page
- Actiontech DSL Modems/Routers
-
Alcatel-Lucent DSL Modems
Page
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Alcatel DynaMiTe DSL Chipset Page
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Allied Data Technologies DSL Products
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Allied Data Technologies (2nd Site)
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Archtek DSL Products
-
ASUSTeK DSL Modem
- Aware DSL Page
- Aztech DSL Page
- BestData
Broadband (Bought by Diamond MultiMedia
Page
- Cayman Systems DSL Page
- Cisco 600 Series DSL Products Page
-
Cisco 800 Series (826, 827, 837, SOHO are ADSL Routers) Router Page
- Cisco 827 review
-
Cisco 1400 Series DSL Router Page
- Comtrend Corp DSL products
- Copper
Mountain Networks Inc. DSL Page
-
DLink DSL Routers Page
- Dynamode DSL Page
- Ericsson White paper on 4th Generation DSL
- GVC (GNet) Broadband Routers and DSL Modems
- Hayes ADSL Page
- Infinilink ADSL
Products
-
Linksys ADSL Router
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Microcomputer Research (MRI) ADSL Page
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Netgear ADSL Router
-
Netopia's DSL Router Products (Motorola bought Netopia)
- Nexland Broadband/Firewalls
-
Paradyne Hotwire DSL Page
-
PCTel's G.Lite Page
- Tahoe
xDSL Products
DSL
- ZyXel DSL CPE
-
Zoom DSL>/Broadband Systems
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