Devolo dlan 550 duo+ User manual

dLAN® 550 duo+
The Network Innovation
dLAN®
550 duo+

devolo dLAN® 550 duo+

© 2022 devolo AG Aachen (Germany)
The reproduction and distribution of the documentation and software supplied with this product and the use of its contents is
subject to written authorization from devolo. We reserve the right to make any alterations that arise as the result of technical de-
velopment.
Trademarks
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Windows®and Microsoft®are registered trademarks of Microsoft, Corp.
devolo and the devolo logo are registered trademarks of devolo AG.
All other names mentioned may be trademarks or registered trademarks of their respective owners. Subject to change without
notice. No liability for technical errors or omissions.
devolo AG
Charlottenburger Allee 67
52068 Aachen
Germany
www.devolo.global
Version 1.2_1/22

devolo dLAN 550 duo+
Contents
1 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 UKCA conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5 Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.6 devolo on the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 What exactly is dLAN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 dLAN 550 duo+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2.1 Sample applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.1 Monitoring light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.2 Network connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.3 Encryption button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.4 Integrated electrical socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4 Connecting the dLAN 550 duo+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5 Installation of devolo software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 dLAN network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Security in the dLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 dLAN network encryption at the touch of a button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Contents
devolo dLAN 550 duo+
5 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1 Bandwidth optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2 Disposal of old devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3 Warranty conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Preface 6
devolo dLAN 550 duo+
1Preface
Thank you for placing your trust in this
dLAN 550 duo+.
The dLAN 550 duo+ allows you to set up your own
home network with almost no effort. Because the
clever dLAN technology transmits the data over
the household electrical wiring, you do not have to
lay any new cables.
1.1 About this manual
Carefully read all instructions before setting up the
device and store the manual and/or installation
guide for later reference.
After a brief introduction to "dLAN" basics and a
presentation of the dLAN 550 duo+ in Chapter 2,
Chapter 3 will cover successfully setting up your
dLAN 550 duo+. Chapter 4 explains how to config-
ure your dLAN network. Tips for bandwidth opti-
mization, information of environmental
compatibility of the device and our warranty con-
ditions can be found in Chapter 5 and conclude
the manual.
Description of the icons
This section contains a brief description of the
icons used in this manual and/or on the rating pla-
te, the device connector, as well as the icons used
on the package:
Icon Description
Very important safety symbol that
warns you of hazardous electrical
voltage which if not avoided can re-
sult in serious injury or death.
Very important safety symbol that
warns you of a potentially dange-
rous situation which if not avoided
can result in serious injury or death.
An important safety symbol that
warns you of a potentially burn ha-
zard which if not avoided can result
in minor injuries or damage to pro-
perty.
An important safety symbol that
warns you of a potentially dange-
rous situation involving a tripping
hazard which can result in injuries.

7 Preface
devolo dLAN 550 duo+
An important note that should be
observed which can potentially
lead to material damages.
The device may only be used in-
doors in dry conditions.
The device is a Class I product. All
electrically conductive (made of
metal) housing parts where a volta-
ge can be applied during operation
or maintenance in the event of an
error must be continuously
connected to the earth wire.
The manufacturer/distributing
company uses the CE marking to
declare that the product meets all
applicable European regulations
and has been subjected to the pres-
cribed conformity assessment
procedures.
Icon Description
The manufacturer/distributing
company uses the UKCA marking to
declare that the product meets all
applicable regulations of Great Bri-
tain and has been subjected to the
prescribed conformity assessment
procedures.
It is used to prevent the occurrence
of waste electrical and electronic
equipment and to reduce this type
of waste through reuse, recycling
and other forms of utilisation. The
WEEE Directive establishes mini-
mum standards for handling waste
electrical and electronic equipment
in the EU, EFTA and UK.
Additional information,
background material and
configuration tips for your device.
Indicates a completed course of ac-
tion
Icon Description

Preface 8
devolo dLAN 550 duo+
1.2 Intended use
Use devolo devices, devolo software and the provi-
ded accessories as described to prevent damage
and injury.
Products
devolo devices are communication devices desi-
gned for indoors.* Depending on the product, they
are equipped with a PLC - (PowerLine Communica-
tion) and/or a Wi-Fi module and/or a broadband
module. The devices communicate with each other
by means of, depending on the product, PLC, data
and telephone line (e.g. coaxial or twisted pair)
and/or Wi-Fi.
devolo devices do not replace the existing router.
They enable transmission of the existing Internet/
data signal over the in-house wiring and via Wi-Fi
and integrate Internet-compatible terminal de-
vices into the home network.
Under no circumstances may devolo devices be
used outdoors, because large temperature fluctua-
tions and moisture can damage both the device
and the power line*. devolo devices may not be in-
stalled at a height above two metres unless an ad-
ditional fastening mechanism is available. The
products are intended for operation in: EU, EFTA
and UK.
* This does not include devolo outdoor devices, which are
suitable for outdoor applications based on their IP classification.
Software
devolo devices can be used only with the free,
downloadable programs approved and available
on devolo AG's website (www.devolo.global) and
in app stores (iOS and Google Play). Any modifica-
tions to the product-specific firmware or software
could damage the products and, in the worst-case
scenario, render them unusable, negatively affect
conformity and cause the warranty claims to beco-
me void.
Always use the most up-to-date software version
to make sure you have the latest security functions
and device updates. The installed devolo software
notifies you automatically if a new software versi-
on is available.
Accessories
Use only the provided accessories.

9 Preface
devolo dLAN 550 duo+
1.3 CE conformity
This product complies with the technical
requirements of the directives 2014/35/
EU, 2014/30/EU, 2011/65/EC and 2009/
125/EC.
This product is designed for use in the EU, EFTA and
Northern Ireland.
A printout of the simplified CE declaration of this
product is separately included.
The CE declaration can be found under
www.devolo.global/support/ce.
1.4 UKCA conformity
This product complies with the technical
requirements of the following regulations:
bElectromagnetic Compatibility Regulations
2016 (SI 2016 No. 1091)
bElectrical Equipment (Safety) Regulations 2016
(SI 2016 No. 1101)
bEcodesign for Energy-Related Products and
Energy Information (Amendment) (EU Exit)
Regulations 2010 (2010 No. 2617)
bRestriction of the Use of Certain Hazardous
Substances in Electrical and Electronic Equip-
ment Regulations 2012 (SI 2012 No. 3032)
This product is designed for use in UK.
A printout of the simplified UKCA declaration of
this product is separately included.
The UKCA declaration and can also be found under
www.devolo.global/support/UKCA.
1.5 Safety notes
It is essential to have read and understood all safe-
ty and operating instructions before the devolo de-
vice is used for the first time; keep them safe for
future reference.
DANGER! Electrical shock caused by
electricity
Do not reach into the electrical socket.
Do not open the device.
Do not insert any objects into the electrical
socket or into the ventilation openings
DANGER! Electric shock caused by
electricity
Device must be plugged into a power soc-
ket with a connected earth wire

Preface 10
devolo dLAN 550 duo+
devolo devices may be operated only on a mains
power supply as described on the rating plate.
CAUTION! Tripping hazard
Lay the network cable in a barrier-free
manner;
ensure that the electrical socket and the
connected network devices are easily ac-
cessible
To disconnect devolo devices from the mains sup-
ply, unplug the device from the electrical socket.
CAUTION! Damage to the device caused
by ambient conditions
Only use device indoors in dry conditions
CAUTION! Heat development during
operation
Certain housing components can become
very hot in certain situations. Attach device
so that it is touch-proof, observing optimal
positioning
devolo devices should only be installed at locations
that guarantee adequate ventilation. Slots and
openings on the housing are used for ventilation:
bDo not cover devolo devices during operation.
bDo not place any objects on devolo devices.
bDo not insert any objects into the openings of
devolo devices.
bdevolo devices must not be placed directly
next to a naked flame (such as fire or candles).
bdevolo devices must not be exposed to direct
heat radiation (e.g. radiator, direct sunlight).
Users do not need to carry out any maintenance
on devolo devices. In the event of damage, dis-
connect the devolo device from the mains supply
by pulling it or its plug out of the electrical socket.
Then contact qualified specialist personnel (after-
sales service) exclusively. Damage is deemed to
have occurred, for example,
bif a button is damaged.
bif the power plug is damaged.
bif the devolo device has been showered with
liquid (such as rain or other water).
bif the devolo device is inoperable.
bif the housing of the devolo device is damaged.
CAUTION! Damage to housing from
cleaning agents containing solvents
Clean only electroless and with dry cloth
Do not plug devolo devices directly into each
other. Devices that are plugged into each
other can experience a decrease in transmis-
sion rate.

11 Preface
devolo dLAN 550 duo+
1.6 devolo on the Internet
For detailed information on our products, visit
www.devolo.global.
There you will find product descriptions and docu-
mentation, and also updates of devolo software
and your device's firmware.
If you have any further ideas or suggestions related
to our products, please don't hesitate to contact us
at [email protected]!

Introduction 12
devolo dLAN 550 duo+
2 Introduction
dLAN is an intelligent, secure technology that lets
you set up a home network easily, quickly and eco-
nomically via your household electrical wiring,
without the need for complex and expensive dedi-
cated cabling.
Fig. 1

13 Introduction
devolo dLAN 550 duo+
2.1 What exactly is dLAN?
dLAN (direct Local Area Network) uses the house-
hold power grid to transfer data between comput-
ers equipped with suitable adapters and other
network components. As a result, any power outlet
can be used as a network access point. The data is
modulated prior to transfer and sent as a signal via
household power lines. State-of-the-art technolo-
gy ensures that the power and data networks do
not interfere with one another. Networking via
dLAN is fast and secure. The data is encrypted us-
ing a key to prevent interception by third parties.
2.2 dLAN 550 duo+
bYour home network from the power socket.
Unpack. Plug it in. Get started. The easy way to
connect using your home's power lines. Turn
any power socket into an Internet access point
bThe fast transfer rate and dLAN speeds up to
500 Mbps allow you to experience entertain-
ment at the highest level. The range+ techno-
logy provides an even more stable Internet
connection with significantly longer range.
bThe "Quality of Service" function and transfer
rates of up to 500 Mbps are enough for band-
width-hungry applications. Automatic data pri-
oritisation ensures interference-free
reproduction of voice and video data.
bThe integrated electrical socket enables addi-
tional terminal devices or multiple sockets to
be connected to the adapter just as a normal
wall socket—no power supply is lost.
bThe two Fast Ethernet LAN ports allow you to
connect two Internet-compatible devices (e.g.
a game console, television or media receiver) to
the Internet at any time via network cable.
bEasy data encryption at the touch of a button
or via devolo Cockpit.
bMinimal energy consumption with devolo's
innovative PowerSave technology
bCompatible with all devolo dLAN adapters
(200 Mbps, 500 Mbps, 600 Mbps and
1000 Mbps).
bLong range of up to 300 m between the adapt-
ers and reliable network speed for setting up a
home network.

Introduction 14
devolo dLAN 550 duo+
2.2.1Sample applications
Fig. 2
Fig. 3

15 Installation
devolo dLAN 550 duo+
3Installation
This chapter covers everything you need to know
to set up your dLAN 550 duo+. It will explain con-
necting the dLAN 550 duo+ and its functions. We
will also briefly introduce the devolo software and
guide you through its installation.
3.1 Package contents
Please ensure that the delivery is complete before
beginning with the installation of your
dLAN 550 duo+:
bSingle Kit:
a dLAN 550 duo+
a Network cable
a Hard copy of installation guide
a Hard copy of security flyer
a Simplified UKCA/CE declaration
or
bStarter Kit:
a Two dLAN 550 duo+
a Two network cables
a Hard copy of installation guide
a Hard copy of security flyer
a Simplified UKCA/CE declaration
devolo AG reserves the right to change the pack-
age contents without prior notice.
3.2 System requirements
bOperating systems supported by
devolo Cockpit:
Fig. 4 is country-specific

Installation 16
devolo dLAN 550 duo+
a from Windows 7 (32-bit/64-bit),
a from Ubuntu 13.10 (32-bit/64-bit),
a from Mac (OS X 10.9)
bGigabit network connection
bNetwork connection
Please note that your computer or other de-
vice must have a network card or network
adapter with a network interface.
To set up a devolo network, you need at
least two devolo adapters.
3.3 Functions
The dLAN 550 duo+ has a monitoring light (LED),
two network jacks and an encryption button.
3.3.1Monitoring light
The monitoring light (LED) shows all of the statuses
for the dLAN 550 duo+ by illuminating and/or
flashing in different ways:
bThe LED flashes at uniform intervals (of 2 s) if
the dLAN 550 duo+ is connected to the mains
supply but there is no dLAN connection.
bThe LED lights up in white if the
dLAN 550 duo+ is ready to operate and there
is a dLAN connection.
bThe LED flashes quickly if the encryption pro-
cess (pairing) is being performed in the dLAN
network.
bThe LED flashes at irregular intervals (1 s/
15 s) if the dLAN 550 duo+ is in PowerSave
mode.
bThe LED lights up in red if the data transmis-
sion rate of the dLAN 550 duo+ is not optimal.
For information to improve the data transmis-
sion rate, please see the chapter 5.1 Band-
width optimization.
3.3.2Network connections
These are the connection points on the
dLAN 550 duo+ for connecting it to a computer
and/or another network device with the network
cable (included).
3.3.3Encryption button
Data encryption at the touch of a button; For more
information on the functions of the encryption
button, please see the chapter 4.2 dLAN network
encryption at the touch of a button.

17 Installation
devolo dLAN 550 duo+
3.3.4Integrated electrical socket
If you connect additional network devices using a
multiple socket, plug this multiple socket into the
electrical socket of the dLAN 550 duo+. The inte-
grated mains filter eliminates any noise of
connected devices and significantly improves data
transmission in the home network.
Please note that all dLAN devices to be
connected to your network are also
connected to your household electrical wi-
ring. A dLAN device switches to Standby
mode after a short while if no active net-
work device such as a computer is
connected to the network port. In Standby
mode, the dLAN device cannot be accessed
via the power supply grid. As soon as the
network device (e.g. computer) connected
to the network interface is switched on
again, your dLAN device can also be rea-
ched again via the electrical wiring.
3.4 Connecting the
dLAN 550 duo+
CAUTION! Damage to the device caused
by ambient conditions
Only use device indoors in dry conditions
This section describes how to connect your
dLAN 550 duo+ to a computer and/or other net-
work device.
For the permitted voltage range for
operating the device and the power
consumption, refer to the label on the rear
side of the device. Additional technical
information is available in the download
area at www.devolo.global.
1Use the included network cable to connect the
dLAN 550 duo+ to the network port of your
running computer and/or other network
device.
CAUTION! Tripping hazard
Lay the network cable in a barrier-free
manner and ensure that the electrical
socket and the connected network de-
vices are easily accessible
2Plug the dLAN 550 duo+ into a free electrical
outlet.

Installation 18
devolo dLAN 550 duo+
Additional network devices that are
connected via a multiple socket are
connected to the mains power supply by
plugging the multiple socket into the inte-
grated electrical socket of the
dLAN 550 duo+.
3Once you have connected at least two dLAN
adapters as described above, your
dLAN network has been set up. To secure your
dLAN network, continue with the configura-
tion as described in chapter 4 dLAN network.
3.5 Installation of devolo soft-
ware
Installing devolo Cockpit software
devolo Cockpit finds all accessible dLAN adapters
in your dLAN network, displays information about
these devices and encrypts your dLAN network in-
dividually. You can use the software to navigate to
the integrated web interface.
Operating systems supported by devolo Cockpit
(Version 5.0 or later):
bfrom Windows 7 (32-bit/64-bit) or later,
bfrom Ubuntu 13.10 (32-bit/64-bit),
bfrom Mac (OS X 10.9)
You can find the product manual, software
and additional information on
devolo Cockpit online at
www.devolo.global/devolo-cockpit.
Downloading the devolo Home Network App
The devolo Home Network App is devolo's free
app also for checking and configuring WiFi, PLC
and LAN connections for the dLAN adapter (using
a smartphone or tablet). The smartphone or tablet
connects to the dLAN adapter at home over Wi-Fi.
1Download the devolo Home Network App to
your smartphone or tablet computer from the
corresponding store.
2The devolo Home Network App is placed in
your smartphone's or tablet's app list as usual.
Tapping on the devolo Home Network App
icon brings you to the start menu.
You can find more information about the
devolo Home Network App online at
www.devolo.global/home-network-app.

19 dLAN network
devolo dLAN 550 duo+
4 dLAN network
4.1 Security in the dLAN
Before you can use the dLAN 550 duo+ in your
dLAN network, first you have to connect it to other
dLAN devices as a home network. Two specific
pieces of information are especially important for
this:
bShared use of a dLAN password results in a
delimited dLAN network.
bShared use of the dLAN password serves as
access control to the dLAN network as well as
the encryption, and thereby the interception
protection, of the transmitted data.
The dLAN password can be set in different ways:
bAutomatically using the encryption button
(see 4.2 dLAN network encryption at the
touch of a button)
bManually using the devolo Cockpit program
(see 3.5 Installation of devolo software).
4.2 dLAN network encryption at
the touch of a button
To encrypt a dLAN network, in which all associated
devices are equipped with an encryption button,
simply press the encryption button that is located
on the device. Pressing this button will encrypt
your dLAN network with a randomly generated
password.
Adapters cannot be configured while in
Standby mode.
The following section contains exact instructions
on the basis of possible network scenarios:
Fig. 5

dLAN network 20
devolo dLAN 550 duo+
Encrypting a new dLAN network consisting of
two adapters
Once both adapters have been successfully con-
nected, press each encryption button for 1 second
within two minutes of one another.
Your dLAN network is now protected
against unauthorized access.
Fig. 6