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All about dsl+
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Interesting facts about dsl+

Interesting facts about dsl⁺

Questions:

General questions

What does ADSL2+ mean??
Which ISPs e.g. in Germany offer ADSL2+, and with what bandwidth?
Where is ADSL2+ available, e.g. in Germany?
Can the new dsl⁺ products from devolo be operated at a normal DSL connection (e.g. T-DSL 1000), as well?
How fast are the net transfer rates with dsl⁺ products at ADSL2+ connections?
What advantages do dsl⁺ products from devolo offer?
Can dsl⁺ products be used to implement triple-play services, i.e. simultaneous data, voice and video? Can people in my network surf the Internet, play online games, telephone over the Internet and watch Internet TV—all at once?
I am an inexperienced PC user. How difficult is it to put devolo’s dsl⁺ products into operation?
Well, apart from the setup with the Wizard, can users make their own settings?
Which operating systems support devolo dsl⁺ products?
What happens if a firmware upgrade to a dsl⁺ product should fail? Some devices are rendered defective!
How well do dsl⁺ routers protect me from Internet attacks?

Questions about dsl⁺ 1100 LAN:

What basic differences are there between a modem and a modem router?
Is it possible to use the dsl⁺ 1100 LAN with multiple computers?
Which PPPoE software client can I use?
How do I set up the PPPoE software client?
Where do I find the user manual?
Why does a modem need upgrades to its firmware?
How is the firmware update carried out if there is no web interface available?

Questions about dsl⁺ 1100 duo:

What makes the dsl⁺ 1100 so well suited to telephony?
How can I use the dsl⁺ 1100 duo to telephone over the Internet?
What happens if I have a time-related DSL tariff? Do I have to switch of the dsl⁺ 1100 duo each time, after going into the Internet?
Can the USB port of the dsl⁺ 1100 duo be used to attach any piece of USB equipment, such as a PC, USB printer, or dLAN adapter?
Is the USB interface a USB2.0 interface?
What cables do I have to buy to connect a dsl⁺ 1100 duo?

Questions about dsl⁺ 1100 WLAN:

How high are the maximum gross and net transfer rates over the connection with a dsl⁺ 1100 WLAN?
Is there currently a faster WLAN data transfer rate that the 54 Mbps offered by IEEE 802.11g?
Does the dsl⁺ 1100 WLAN have a WLAN Turbo Mode?
Does devolo offer a WLAN client, too?
Can I use the dsl⁺ 1100 WLAN with several wireless laptops at once?
What do I have to do to stop outsiders from accessing the wireless connection between my laptop and the dsl⁺ 1100 WLAN? What methods of encryption does the dsl⁺ 1100 WLAN support?
I would like to access the Internet via the dsl⁺ 1100 WLAN with a wireless laptop, and I don’t have a stationary PC. Can I set up the dsl⁺ 1100 WLAN directly from my laptop over wireless?

Answers
Here you find all answers to your dsl+ questions.

Question:
What does ADSL2+ mean?

Answer:
From a technical point of view, ADSL2+ is a further development of the DSL standard, the principle improvement being faster data rates and greater range for DSL connections. The improvement in range enables network providers to offer ADSL to a greater number of potential customers, whereas the improved data rates enable new services such as the transmission of high-definition TV (HDTV) over the Internet. For instance, videos and entire films are available in real time over ADSL2+. Example: A file of 750 MB can be downloaded in just five minutes.

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Question:
Which ISPs e.g. in Germany offer ADSL2+, and with what bandwidth?

Answer:

1&1	with 16 Mbps
AOL	with 16 Mbps
Arcor	with 16 Mbps
debitel	with 10 Mbps and 16 Mbps
HanseNet	with 16 Mbps
Host Europe	with 20 Mbps
M-Net	with 16 Mbps
NetCologne	with 12 Mbps and 18 Mbps
Versatel	with 16 Mbps und 20 Mbps
Gelsen-Net	with 16 Mbps und 20 Mbps

(Status: Feb. 2006)

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Question:
Where is ADSL2+ available, e.g. in Germany?

Answer:
DSL providers and resellers which are active throughout Germany currently offer ADSL2+ in a selection of larger cities including Bremen, Dortmund, Düsseldorf, Frankfurt am Main, Hamburg and Munich. Similarly, telephone companies which are active nationwide only compete directly with one another in a small number of cases, for example in Berlin where Arcor, HanseNet and Versatel offer ADSL2+. Regional ADSL2+ providers only operate in different areas and do not compete directly.

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Question:
Can the new dsl⁺ products from devolo be operated at a normal DSL connection (e.g. T-DSL 1000), as well?

Answer:
Yes! All devolo ADSL2+ products are backwardly compatible to ADSL(1) connections.

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Question:
How fast are the net transfer rates with dsl⁺ products at ADSL2+ connections?

Answer:
The net transfer rate with ADSL2+ corresponds to the stated transfer rates of max. 25 Mbps. It actually depends upon the bandwidth offered by the ISP (see above).

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Question:
What advantages do dsl⁺ products from devolo offer?

Answer:

Performance:	High-performance ADSL2+ modem with integrated router and Quality of Service for Internet applications such as IP-TV, video on demand, IP telephony, online gaming, etc.)
Security:	Pre-set and automatically activated SPI firewall for maximum protection from attacks from the Internet attacks Additional security software package with antivirus scanner and web content filters
Ergonomics:	Graphical installation guide and simple configuration menus make easy work of first-time installation Particularly easy for non-expert users Configuration in 6 different languages

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Question:
Can dsl⁺ products be used to implement triple-play services, i.e. simultaneous data, voice and video? Can people in my network surf the Internet, play online games, telephone over the Internet and watch Internet TV—all at once?

Answer:
Yes! The dsl⁺ products are particularly well suited to this because of their high data transfer rates and their integrated prioritisation mechanisms for using multimedia applications, including Internet TV, VoIP, online gaming, etc.

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Question:
I am an inexperienced PC user. How difficult is it to put devolo’s dsl⁺ products into operation?

Answer:
One of the main focuses in our development work was to ensure that the products are easy to use, which is particularly important for inexperienced users who need an easy and uncomplicated installation. This has been achieved in particular by:

A. The installation poster that shows each step visually.
B. The Setup Wizard (select country, select provider, enter user name and password) which sets all of the necessary parameters automatically.

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Question:
Well, apart from the setup with the Wizard, can users make their own settings?

Answer:
Yes, of course—with the help of the Expert Mode, which is accessed via the web interface.

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Question:
Which operating systems support devolo dsl+ products?

Answer:

dsl⁺ 1100 duo: Win 98/Me/2000/XP, Mac OS-X, Linux
dsl⁺ 1100 LAN: Win 2000/XP, Mac OS-X, Linux
dsl⁺ 1100 WLAN: Win 2000/XP, Mac OS-X, Linux

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Question:
What happens if a firmware upgrade to a dsl⁺ product should fail? Some devices are rendered defective!

Answer:
The dsl+ products from devolo feature an integrated, on-board recovery firmware. This emergency firmware automatically starts in case of a disturbance to the firmware upload (typically if the device is switched off during an upgrade), and it enables the firmware upgrade to be restarted.

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Question:
How well do dsl⁺ routers protect me from Internet attacks?

Answer:
The devolo dsl⁺ router offers you the highest level of security with:

An integrated and pre-set SPI firewall that is automatically activated without configuration
Firewall operation with stealth mode, i.e. ping queries arriving at the router go unanswered
Firewall with "port unreachable", i.e. unrequested packets arriving from the Internet are rejected silently
Protected access by translating multiple private IP addresses into a single public address (IP masquerading or NAT)
Additional security software package with anti-virus software for protection from harmful software, and web content filters to protect children from negative influences from the Internet.

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Question:
What basic differences are there between a modem and a modem router?

Answer:
A modem router allows multiple devices (computer, telephone, gaming console, etc.) to go online at once, whereas a modem only allows one device to go online at a time.

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Question:
Is it possible to use the dsl⁺ 1100 LAN with multiple computers?

Answer:
Yes. Just connect the dsl⁺ 1100 LAN with any standard LAN router. Actually, devolo already has a product for this purpose; the dsl⁺ 1100 duo is an ADSL2+ modem and router all combined in single device.

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Question:
Which PPPoE software client can I use?

Answer:
With Windows XP, a PPPoE software client is included. Older Windows versions and other operating systems need a PPPoE software client, as included on the supplied CD. This is automatically installed if Windows XP is not being used.

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Question:
How do I set up the PPPoE software client?

Answer:
The devolo Setup Wizard, provided on the supplied CD, takes care of all necessary parameter settings simply by asking questions. After being inserted, the CD starts automatically and gives you the option of starting the Setup Wizard.

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Question:
Where do I find the user manual?

Answer:
The user manual is a PDF file on the CD supplied with the product.

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Question:
Why does a modem need upgrades to its firmware?

Answer:
The option of carrying out a firmware upgrade on a modem offers its user a protection of their investment. The device can be brought right up to date with the latest firmware version. If, for example, future firmware updates should enable improvements in performance, then those devices which have been shipped already can benefit from these advances, too.

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Question:
How is the firmware update carried out if there is no web interface available?

Answer:
With PC software supplied on the CD.

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Question:
What makes the dsl⁺ 1100 so well suited to telephony?

Answer:
The IP data packets that contain voice data are priority-handled in the Internet. This minimises the run time of the packets between sender and receiver. The voice packets are not queued like other data packets; instead, they are prioritised and sent directly into the Internet.

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Question:
How can I use the dsl⁺ 1100 duo to telephone over the Internet?

Answer:
There are 3 different possibilities:

With a softphone, i.e. a computer program that simulates a telephone. A soundcard and headset are additionally required for this. The disadvantage is that the computer always has to be switched on to telephone.
With an IP telephone, which is not to be confused with a normal land-line telephone (analogue or ISDN). IP telephones are based on a completely different platform and convert spoken words into IP data packets. These packets are then routed over the Internet, which is a packet-orientated network. An IP telephone is connected directly to the dsl+ 1100 duo via an Ethernet cable.
Standard land-line telephones (analogue/ISDN), including cordless DECT telephones, can also be connected with the help of a VoIP ATA (analogue terminal adapter). This adapter is connected to the dsl+ 1100 duo and converts the signals that are intended for the land-lines into IP data packets for routing over the Internet.

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Question:
What happens if I have a time-related DSL tariff? Do I have to switch of the dsl⁺ 1100 duo each time, after going into the Internet?

Answer:
No. It is possible to set up the dsl⁺ 1100 duo so that the connection is cut off if no Internet access takes place for 5 minutes.

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Question:
Can the USB port of the dsl⁺ 1100 duo be used to attach any piece of USB equipment, such as a PC, USB printer, or dLAN adapter?

Answer:
The USB interface can only be used to connect to a computer. This is because it is a USDN client interface.

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Question:
Is the USB interface a USB2.0 interface?

Answer:
The dsl⁺ 1100 duo has a USB1.1 client interface, which is compatible to USB2.0.

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Question:
What cables do I have to buy to connect a dsl⁺ 1100 duo?

Answer:
None, everything you need is included.

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Question:
How high are the maximum gross and net transfer rates over the connection with a dsl⁺ 1100 WLAN?

Answer:
The dsl⁺1100 WLAN supports the WLAN standards IEEE 802.11b with an 11Mbps gross bandwidth and IEEE 802.11g with a gross bandwidth of 54 Mbps. Net transfer rates with the g standard are ca. 26 Mbps.

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Question:
Is there currently a faster WLAN data transfer rate that the 54 Mbps offered by IEEE 802.11g?

Answer:
IEEE 802.11g++ is a technique that provides a so-called “Turbo Mode” for the WLAN standard IEEE 802.11g. Special methods of acceleration (frame bursting, packet aggregation) are used to increase the maximum gross data transfer rates to 125 Mbps—compared to 54 Mbps with the normal IEEE 802.11g. This results in an increase in maximum net data transfer rates by about 35 percent from ca. 25 Mbps to ca. 34 Mbps.
If several devices in a WLAN radio cell all support the 802.11g++ Turbo Mode, then they can communicate at a faster rate with one another. There are, however, slight disadvantages for other devices within the radio cell that do not support Turbo Mode.

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Question:
Does the dsl⁺ 1100 WLAN have a WLAN Turbo Mode?

Answer:
Yes! With the IEEE 802.11g++ Turbo Mode (this is not a standard), the devices can achieve gross data transfer rates of up to 125 Mbps. This corresponds with a net bandwidth of ca. 34 Mbps.

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Question:
Does devolo offer a WLAN client, too?

Answer:
No. The dsl⁺ 1100 WLAN is compatible with all current WLAN clients that meet the standard IEEE 802.11b/g. Also compatible are WLAN clients with the Turbo Mode g++, available in stores.

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Question:
Can I use the dsl⁺ 1100 WLAN with several wireless laptops at once?

Answer:
The dsl+ 1100 WLAN features an integrated WLAN access point, so it is possible for multiple WLAN clients (laptops, PDAs, computers) to connect simultaneously.

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Question:
What do I have to do to stop outsiders from accessing the wireless connection between my laptop and the dsl⁺ 1100 WLAN? What methods of encryption does the dsl⁺ 1100 WLAN support?

Answer:
The first time that the device is installed, an encrypted wireless connection is established automatically. WEP, WPA or WPA2 can be used, depending on the methods of encryption that are supported by the WLAN clients. The highest priority is given to WPA2, then WPA and then WEP.

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Question:
I would like to access the Internet via the dsl⁺ 1100 WLAN with a wireless laptop, and I don’t have a stationary PC. Can I set up the dsl⁺ 1100 WLAN directly from my laptop over wireless?

Answer:
Yes! There is no need of a cable connection to the computer for the first-time installation.

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RAI Amsterdam

RAI Amsterdam
Conference 11.-15.09.2008
Exhibition 12.-16.09.2008
IPTV Zone, Hall 12, Booth 257

Systems 2008

Messe München
Dealers Only Area

21.02.2008

HomePlug innovation at CeBIT 2008: devolo presents the world's first 400 Mbps HomePlug AV-compatible demo

Compared to current Home Plug speeds of 200 Mbps, devolo now doubles data rates over in-house powerlines to 400 Mbps.
>> more

06.02.2008

devolo features new dLAN business products at CeBIT 2008:

IP networks via existing cable networks � dLAN integration as modular solution
>> more

30.01.2008

devolo at CeBIT 2008: numerous in-house powerline innovations � dLAN TV sat enables digital TV reception at every power socket

devolo will showcase innovative new products at CeBIT (4 - 9 March 2008) in Hanover.
>> more

30.10.2007

devolo combines PCs to entertainment systems � the new dLAN Audio extender distributes music throughout the entire house

With the dLAN Audio extender, one can connect a PC to an entertainment system or active speakers within a house simply and quickly via the existing home's mains wiring installation
>> more

01.10.2007

Data encryption at the push of a button: devolo dLAN 200 AVeasy makes network security even simpler

The first 200 Mbps HomePlug-AV adapter with a convenient security feature
>> more