Gigaset SE681 WiMAX User manual

Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Cover_front.fm / 11.8.09
Schablone 2007_10_19
Gigaset SE681 WiMAX
User Guide – User
This device works in a frequency band for which no general licence has been obtained
from your National Authority for Frequency Management. Please contact your service
provider or your National Authority for Frequency Management about licensing before
putting this device into service.

3
Contents
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / SX682_SE681IVZ.fm / 12.8.09
Schablone 2007_10_19
Contents
For your safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cleaning and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Information on Specific Absorption Rate (SAR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Information about the optional outdoor antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Gigaset SE681 WiMAX . . . . . . . . . . . . . . . . . . . . . . . 10
What is WiMAX? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gigaset SE681 WiMAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connectors and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installing the Gigaset SE681 WiMAX . . . . . . . . . . . 14
Choosing your location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Connecting the Gigaset SE681 WiMAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Connecting the outdoor antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Connecting the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Switching on the devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Restarting and resetting the Gigaset SE681 WiMAX . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rebooting the Gigaset SE681 WiMAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Returning the Gigaset SE681 WiMAX to factory settings . . . . . . . . . . . . . . . . . . . 19
Configuration with the Web browser . . . . . . . . . . 21
User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Launching the user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
UI elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Setting the language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Opening online Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
The Home page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Basic Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Starting the Basic Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Entering access data for the WiMAX network . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Setting up Internet access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Selecting the antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Adjusting the antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Establishing a radio connection to a WiMAX network . . . . . . . . . . . . . . . . . . . . . 27
Precisely aligning the antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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Contents
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Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Setting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Configuring Internet access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Setting up the Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Setting up DNS servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Enabling or disabling the firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Port Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Opening the firewall for a selected PC (Exposed Host) . . . . . . . . . . . . . . . . . . . . . 36
LAN configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
WiMAX configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Antenna selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
System password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Restoring factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Updating the firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Local network LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Device status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Radio status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Preparing to use the Gigaset SE681 WiMAX . . . . . 47
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Other faults and problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Before contacting customer service or your provider . . . . . . . . . . . . . . . . . . . . . . 50
Checking the connection to the Gigaset SE681 WiMAX . . . . . . . . . . . . . . . . . . . . . . . 51
Configuring the Web browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Setting up an HTTP proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Allowing JavaScript and Java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Allowing pop-up windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Outdoor antenna specifications (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Putting into service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
CE declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

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Contents
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / SX682_SE681IVZ.fm / 12.8.09
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Open Source Software used in the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Warranty regarding further use of the Open Source Software . . . . . . . . . . . . . . . 57
Open Source Software used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Open Source Software Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

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For your safety
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Safety.fm / 11.8.09
Schablone 2007_10_19
For your safety
ìPlease read the safety instructions carefully before putting into service.
Safety precautions
General safety instructions
uIf you give the Gigaset SE681 WiMAX to someone else, make sure you also give them
its documentation.
uThe Gigaset SE681 WiMAX must only be used as described in these installation
instructions.
Safety instructions for connection
uOnly use the mains adapter supplied, as indicated on the underside of the Gigaset
SE681 WiMAX.
Safety precautions for the Gigaset SE681 WiMAX
uThe operation of medical appliances may be affected. Be aware of the technical con-
ditions in your particular environment, e.g. doctor's surgery.
uThe Gigaset SE681 WiMAX and the antenna can interfere with the functioning of
medical devices such as pacemakers. Keep at least 20 cm between the devices and
the pacemaker. For more information, consult your doctor.
uThe device may cause an unpleasant humming noise in hearing aids.
uDo not use the devices in environments with a potential explosion hazard, e.g. car
paint shops, or in a humid environment (bathroom etc.).
uThe Ethernet function is designed exclusively for connection inside a building.
Cleaning and care
Wipe the Gigaset SE681 WiMAX with a damp cloth (do not use solvent) or an antistatic
cloth.
Never use a dry cloth. This can cause static.
Trademarks
uMicrosoft Windows 2000, Windows XP, Windows Vista and Internet Explorer are reg-
istered trademarks of the Microsoft Corporation.
uMozilla Firefox is a registered trademark of the Mozilla Organization.

7
Information about the optional outdoor antenna
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Safety.fm / 11.8.09
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Information on Specific Absorption Rate (SAR)
This device meets the limits for protecting the health of the public from the effecs of
exposure to electromagnetic fields when it is operated in connection with the desig-
nated antenna(s) like described in the user manual.
Your device is a radio transmitter and receiver. It is designed and manufactured not to
exceed the limits for exposure to emission from electromagnetic fields recommended
by international guidelines from the International Commission on Non-Ionizing Radia-
tion Protection (ICNIRP). These limits are part of comprehensive guidelines for the pro-
tection of the public and establish permitted levels of exposure to electromagnetic radi-
ation for the population. The guidelines were confirmed by independent scientific
organisations through periodic and thorough evaluation of scientific studies. The limits
include a substantial safety margin designed to assure the safety of all persons, regard-
less of age and health.
The exposure limit employs a unit of measurement known as the Specific Absorption
Rate, or SAR. The SAR limit stated in the international guidelines is 2.0 W/kg. Tests for
SAR are conducted in all frequency bands with the device transmitting at its highest
power level with minimum possibledistance to the body. The actual SAR level of the
device during operation with the designated antenna(s) is below the maximum value
and is additonally decreased by a distance to the device. This is because the device is
designed to operate at multiple power levels so as to use only the power required to
enable seamless network connection.
Information about the optional outdoor antenna
Wall duct:
To connect the Gigaset SE681 WiMAX to the outdoor antenna, the antenna cable must
be fed through the wall to the outside of the building. It must be possible to make a suit-
able wall or window duct at or near the location of the Gigaset SE681 WiMAX.
Setting up the antenna mast:
There should not be any obstructions (walls, trees etc.) in front of the antenna.
W
Only one of the antennas listed on page 14 must be used.
The outdoor antenna must be installed and put into service by a qualified
electrician.
ìOnly commence the outdoor work once you have taken all the neces-
sary steps to make the location safe.
Be sure to observe the safety instructions.

8
Information about the optional outdoor antenna
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Safety.fm / 11.8.09
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The antenna mast must be structurally secure. Check how secure the various attach-
ments are.
The antenna mast must be within reach of the cable. Ideally, the antenna cable should
be protected outside (from frost, sun, unauthorised and mechanical influences etc.).
In particular, make sure the antenna mast has sufficient load capacity. If you are mount-
ing the mast on the roof, make sure the roof is fully sealed again afterwards.
Lightning protection
The antenna mast should be positioned near a lightning conductor. A suitable lightning
conductor must be installed where necessary.
The outdoor antenna is not designed to be struck directly by lightning and must be pro-
tected accordingly. The antenna must therefore be mounted in areas that are protected
against lightning (Lightning Protection Zone 0B). The corresponding separation dis-
tance (IEC 62305) must be complied with.
Earthing and lightning protection work may only be carried out by electricians specifi-
cally qualified for such work.
The best results will be obtained if the outdoor
antenna is in sight of the WiMAX base station (cf.
Fig. 1).
If a line of sight is not possible, you can reflect the
radio waves off neighbouring buildings. To do
this, direct the antenna at the building it is to
reflect off and not at the base station (cf. Fig. 2).
Fig. 1
Fig. 2

9
Information about the optional outdoor antenna
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Safety.fm / 11.8.09
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The appropriate earthing clamps must be used to create an equipotential bonding
between a cable shield and an equipotential bonding bar that complies with regula-
tions.
Please observe the standard DIN VDE 0855-300 and find out more on the Internet at
http://www.dehn.de/design07_frame/frameset_d_bp.html (German)
Or
http://www.dehn-usa.com/dehn-Application-Guides-pubcid1.html (English)
Antenna cable and antenna connection:
It must be possible to connect the outdoor antenna to the Gigaset SE681 WiMAX by
means of an antenna cable.
Please note that the antenna connection must be protected from the impact of rain and
other weather effects.
Use cable clamps to attach the cable to the mast. Please note that the cable must be
long enough to turn the antenna at a later stage.
Antenna alignment:
When aligning the antenna, we recommend asking a second person to run the Basic
Setup Wizard on the PC and to check the reception quality on the screen; see Chapter
"Basic Setup Wizard" on page 26.
After installation:
Tighten all screw connections to the torques listed in the installation instructions.
Secure the antenna cable with cable clamps and cable ties. The cable must be protected
from exposure to pressure and tension.
i
Aligning the antenna using acoustic signals
If neither you nor the assistant are able to check the signal strength on
screen while the antenna is being aligned, you can monitor it via a radio
system. To do this you will need, for example, two cordless phones,
mobile phones or radio devices:
ìActivate Tone on on the configuration PC.
ìEstablish an internal connection between the two handsets and
switch on the loudspeaker on both devices.
ìLeave one handset next to the configuration PC and carry the other
with you (belt clip).
You will now be informed of the signal strength by means of beeps. The
closer together the sequence of beeps, the better the connection quality.

10
Gigaset SE681 WiMAX
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Product_intro.fm / 11.8.09
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Gigaset SE681 WiMAX
What is WiMAX?
WiMAX stands for "Worldwide Interoperability for Microwave Access", a modern wire-
less network technology that enables fast Internet connection even in remote areas.
With WiMAX technology you are no longer dependent on a DSL infrastructure in your
home or place of work. Instead, you connect your PC or network wirelessly to radio
stations operated in your region by your provider. As a result, WiMAX gives you fast,
economical broadband Internet access, even in places that are not connected to the DSL
cable network.
The WiMAX standard IEEE 802.16 generally defines WiMAX technology. Your Gigaset
SE681 WiMAX already meets the latest IEEE 802.16e-2005 standard, a mobile WiMAX
standard that offers many extra possibilities.
Gigaset SE681 WiMAX
With your Gigaset SE681 WiMAX, you can make use of everything the Internet has to
offer:
uDownloads
– Even large files download quickly to your PC.
– Complex Website designs are no longer characterised by the time they take to
download – you can enjoy flash animation and high-resolution graphics immedi-
ately after clicking a link.
uAudio
– Play back audio files straight from the Internet.
– Listen to the radio via the Internet in superb digital quality.
uVideo
– View short or longer films you find on the Internet without tedious waiting times.
– Watch television via the Internet (IPTV).
– Use "Video on Demand" and order films that are transmitted to you via the
Internet.
uReal time
– Take part in video conferences and feel as if you are sitting in the same room as
the people you are talking to.
– Speak to and see your chat partners.

11
Product overview
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Product_intro.fm / 11.8.09
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Product features
uWireless high-speed Internet access with a transmission rate of up to 20 Mbps
(14 Mbps downlink, 6 Mbps uplink)
uStandard compatibility: IEEE 802.16e-2005
uCompatible with all current operating systems
uSuitable for home and business facilities
uMulti-protocol support: TCP/IP, FTP, HTTP and other Internet related protocols
uEasy to set up without installing software
uInternet and VoIP connection without the hassle of entering access data
uDHCP server and routing functions
uHigh performance and quality of service
uOptional: outdoor antenna for improved connection quality
Product overview
Connectors and LEDs
Connectors
Reset button
Ethernet port
Mains adapter connector
Antenna connection for external
antenna

12
Product overview
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Product_intro.fm / 11.8.09
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uFor information about the optional outdoor antenna, please refer to "Connecting the
outdoor antenna" on page 17.
uFor information on connecting the mains adapter, please refer to "Switching on the
devices" on page 18.
uFor information on the reset button, please refer to "Restarting and resetting the
Gigaset SE681 WiMAX" on page 19.
uFor information on the Ethernet port, please refer to "Connecting the PC" on
page 17.
LEDs
The LEDs indicate the status of the Gigaset SE681 WiMAX and the current signal
strength.
Name LED Meaning
Power: power
supply
Lights up green The Gigaset SE681 WiMAX is powered cor-
rectly.
Does not light up The Gigaset SE681 WiMAX is not powered
correctly or the power supply has failed.
Online: active
connection
Lights up green The Gigaset SE681 WiMAX is registered with
a WiMAX network and ready for use.
Does not light up The Gigaset SE681 WiMAX is not registered
with a WiMAX network; it is not possible to
establish an Internet connection.
Flashes green The Gigaset SE681 WiMAX is establishing a
connection with a WiMAX network.
Lights up red The Gigaset SE681 WiMAX is not ready. Pos-
sible cause: device is overheating or faulty.
LAN: Ethernet
port
Lights up green Correct cable connection with a powered
connection partner.
Does not light up No or incorrect cable connection.
Flashes green Data transfer via the Ethernet port.
RSSI: signal strength
LAN: Ethernet port
Online: active connection
Power: power supply

13
Product overview
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Product_intro.fm / 11.8.09
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RSSI: signal
strength
0 to 4 LEDs light
up green
The LEDs on the Gigaset SE681 WiMAX help
you to position the antenna more easily. The
LEDs indicate the signal strength; the more
LEDs that light up, the better the signal
reception.
All 4 LEDs flash
green
The Gigaset SE681 WiMAX is being reset to
the factory settings; see "Returning the
Gigaset SE681 WiMAX to factory settings" on
page 19.
Name LED Meaning

14
Installing the Gigaset SE681 WiMAX
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Installation.fm / 11.8.09
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Installing the Gigaset SE681 WiMAX
If you use the separate outdoor antenna (optional, not included in the scope of
delivery):
The Gigaset SE681 WiMAX can only be used with the device's integrated antenna or
with one of the following outdoor antennas.
This user guide assumes that installation of the outdoor antenna has been completed.
Choosing your location
uChoose a location that enables you to simply set up the following connections with-
out any further work.
– Connect the Ethernet cable for connection to a PC or network.
– Connect the power lead to the mains socket.
uStand the Gigaset SE681 WiMAX upright on an even, non-slip surface.
uLay the cables in such a way that nobody can tread on or trip over them.
uPosition the Gigaset SE681 WiMAX so that you can see the LEDs.
uDo not cover the openings in the Gigaset SE681 WiMAX housing to ensure the heat
can circulate; otherwise, the duty cycle of the device will be reduced or the Gigaset
SE681 WiMAX switched off to avoid overheating.
uDo not operate the Gigaset SE681 WiMAX under the influence of direct heat sources
(e.g. directly in the sun).
3.5 GHz 18 dBi WiMAX Antenna Outdoor "Antenna cable 3 m"
2.6 GHz 15 dBi WiMAX Antenna Outdoor "Antenna cable 3 m"
W
3.5 GHz versions should be used for the European Economic Area.
The following requirements apply:
All the external antennas used for this product must undergo a confor-
mity assessment procedure.
The 3.5 GHz antennas listed here meet the European requirements and
guarantee the functionality of the complete system.
During the conformity assessment procedure it was ensured that the SAR
limits set down in directive 99/519/EC are observed. Verification was per-
formed using EN 50385.
The outdoor antenna must be installed and put into service by a qualified
electrician.
The notes in the enclosed installation instructions must be followed

15
Choosing your location
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If you use the integrated antenna:
uPosition the Gigaset SE681 WiMAX directly in a window, so that the side with the
LEDs and connectors is pointing into the room, towards you. Wherever possible,
position the Gigaset SE681 WiMAX on one of the upper storeys. Note that obstruc-
tions, particularly doors and wall coverings containing metal can affect data trans-
mission.
uPosition the Gigaset SE681 WiMAX as far away as possible from metallic objects and
coated foils.
Gigaset SE681 WiMAX with integrated antenna
PC with Gigaset
SE681 WiMAX
WiMAX network
base station

16
System requirements
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Installation.fm / 11.8.09
Schablone 2007_10_19
Gigaset SE681 WiMAX with outdoor antenna
System requirements
To use the Gigaset SE681 WiMAX, the following requirements have to be fulfilled.
uYou will need a PC that meets the following requirements:
– PC with a free LAN interface 10/100BaseT (network adapter). The network
adapter on the configuration PC must support one of the following modes:
10BaseT Full Duplex, 100BaseT Half Duplex, 100BaseT Full Duplex. The TCP/IP
protocol has to be set up on the PC (standard installation for Windows XP and
Windows Vista; if you are using a different Windows operating system, read the
separate instructions on network configuration, if necessary).
– A Web browser is installed on the configuration PC (e.g. Internet Explorer or
Mozilla Firefox).
uTo access the Internet you will need to register your Gigaset SE681 WiMAX with a
WiMAX Internet provider.
iWhen used with the integrated antenna or the outdoor antenna, the
Gigaset SE681 WiMAX complies with the regulations on limiting the
effect of electromagnetic fields on the general population.
PC with Gigaset SE681 WiMAX
WiMAX network
base station

17
Connecting the Gigaset SE681 WiMAX
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Installation.fm / 11.8.09
Schablone 2007_10_19
Connecting the Gigaset SE681 WiMAX
Connect the Gigaset SE681 WiMAX in the following order:
1. If you use the outdoor antenna, have it installed by a qualified electrician. Connect
the antenna cable from outside to the Gigaset SE681 WiMAX.
2. Connect the PC to the Gigaset SE681 WiMAX.
3. Connect the Gigaset SE681 WiMAX to the mains power supply and switch all the
devices on.
Connecting the outdoor antenna
Connecting the PC
ìScrew the connector of the antenna
cable into the ANT WiMAX connector
on your Gigaset SE681 WiMAX. In
order to disconnect the antenna cable
from the connector, open the screw
connection.
!
Use either the Ethernet cable that is supplied or a standard network cable
(CAT-5) to connect the device to the PC. It is not important whether the
Ethernet cable has straight or crossed wiring.
Always use a shielded Ethernet cable.

18
Connecting the Gigaset SE681 WiMAX
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Installation.fm / 11.8.09
Schablone 2007_10_19
Connecting Gigaset SE681 WiMAX to the PC
ìConnect one Ethernet cable plug to the Ethernet port on the Gigaset SE681 WiMAX.
ìConnect the other plug of the Ethernet cable to the LAN interface on the PC.
Optional: connecting several terminals
If you wish to connect several terminals (for example a PC and a laptop) and establish
an Internet connection with all the devices, connect a switch or hub to your Gigaset
SE681 WiMAX.
Switching on the devices
ìConnect the mains adapter plug to the Gigaset SE681 WiMAX socket.
ìPower up the PC.
ìConnect the mains adapter to the mains power supply.
The system starts up and performs a self-test. After the self-test, the Gigaset SE681
WiMAX continually attempts to register with a WiMAX network. Registration may be
successful immediately. If not, registration will take place when the Gigaset SE681
WiMAX is being configured.
ìCheck the LEDs during startup:
LEDs during startup:
iA DHCP server is integrated into your Gigaset SE681 WiMAX. Please
ensure that a second DHCP server is not activated on your server. For
details on this, read the operating instructions for your switch/hub.
!Only use the Gigaset SE681 WiMAX with the mains adapter supplied.

19
Restarting and resetting the Gigaset SE681 WiMAX
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Installation.fm / 11.8.09
Schablone 2007_10_19
–ThePower power supply LED lights up green, and the Gigaset SE681 WiMAX
starts a self-test. If the LED does not light up, check that the mains adapter is con-
nected correctly and the power socket is live.
–TheLAN Ethernet LED is continuously lit green. If the LED does not light up,
check that the Ethernet cable is connected correctly.
– If registration with a WiMAX network has already been successful, theOnline LED
lights up green. If the LED does not light up, register your Gigaset SE681 WiMAX
during configuration.
Restarting and resetting the Gigaset SE681 WiMAX
Rebooting the Gigaset SE681 WiMAX
ìBriefly press the reset button (for less than 5 seconds). The configuration settings
will remain, the Gigaset SE681 WiMAX will be restarted.
You can also restart the Gigaset SE681 WiMAX via the user interface or by briefly cutting
the power supply.
Returning the Gigaset SE681 WiMAX to factory settings
If you no longer have access to your Gigaset SE681 WiMAX, you can also restore factory
settings with the reset button on the back of the device.
ìPress and hold the reset button for more than 5 seconds.
The 4 RSSI LEDs will begin to flash green. The configuration settings are returned to the
factory settings and the Gigaset SE681 WiMAX is restarted. This process takes about
25 seconds. The Gigaset SE681 WiMAX will then automatically try to set up a connec-
tion to a WiMAX network; depending on the connection quality, 0 to 4 RSSI LEDs will
permanently light up green.
The reset button is located inside the Gigaset
SE681 WiMAX so that it cannot be pressed
accidentally. If you need to restart or reset the
Gigaset SE681 WiMAX, use a thin object such as
an opened up paper clip.
!When the factory settings are restored, all personal settings are deleted.

20
Restarting and resetting the Gigaset SE681 WiMAX
Gigaset SE681 WiMAX / engbt / A31008-N923-R101-5x-7619 / Installation.fm / 11.8.09
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Factory settings
After restoring the factory settings, your Gigaset SE681 WiMAX will be in its original
condition:
ìProceed as follows to start operating your device again:
Menu Setting
Basic Setup Wizard Execute the Basic Setup Wizard to configure your device
and to establish a connection to the WiMAX network, see
"Basic Setup Wizard" on page 26.
Advanced Settings –
Administration –
System Password
Protect the configuration interface of your device with a
password, see "System password" on page 39.
If the device came from your provider with a preset sys-
tem password, this will now be valid again. Please check
the documents supplied by your provider.