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.
Please read the safety instructions carefully before putting into service.
Safety precautions
General safety instructions
If you give the SE681 WiMAX to someone else, make sure you also give them its
documentation.
The SE681 WiMAX must only be used as described in these installation instruc-
tions.
Safety instructions for connection
Only use the mains adapter supplied, as indicated on the underside of the SE681
WiMAX.
Safety precautions for the SE681 WiMAX
The operation of medical appliances may be affected. Be aware of the technical
conditions in your particular environment, e.g. doctor's surgery.
The 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.
The device may cause an unpleasant humming noise in hearing aids.
Do not use the devices in environments with a potential explosion hazard, e.g. car
paint shops, or in a humid environment (bathroom etc.).
The Ethernet function is designed exclusively for connection inside a building.
Cleaning and care
Wipe the SE681 WiMAX with a damp cloth (do not use solvent) or an antistatic cloth.
Never use a dry cloth. This can cause static.
Trademarks
Microsoft Windows 2000, Windows XP, Windows Vista and Internet Explorer are
registered trademarks of the Microsoft Corporation.
Mozilla Firefox is a registered trademark of the Mozilla Organization.
4
Information on Specific Absorption Rate (SAR)
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 designated 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 Radiation Protection (ICNIRP). These limits are part of comprehensive guidelines for the protection of the public and establish permitted levels of exposure to electromagnetic radiation 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, regardless 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 possible distance to the body. The actual SAR level of the
device during operation with the designated antenna(s) is below the maximum value
and is additionally 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
Only one of the antennas listed on page 12 must be used.
The outdoor antenna must be installed and put into service by a qualified
electrician.
Only commence the outdoor work once you have taken all the nec-
essary steps to make the location safe.
Be sure to observe the safety instructions.
Wall duct:
To connect the 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 suitable
wall or window duct at or near the location of the SE681 WiMAX.
5
Information about the optional outdoor antenna
Fig. 1
Fig. 2
Setting up the antenna mast:
There should not be any obstructions (walls, trees etc.) in front of the antenna.
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).
The antenna mast must be structurally secure. Check how secure the various attachments 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 mounting 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 protected accordingly. The antenna must therefore be mounted in areas that are protected
against lightning (Lightning Protection Zone 0B). The corresponding separation distance (IEC 62305) must be complied with.
Earthing and lightning protection work may only be carried out by electricians specifically qualified for such work.
6
Information about the optional outdoor antenna
i
The appropriate earthing clamps must be used to create an equipotential bonding
between a cable shield and an equipotential bonding bar that complies with regulations.
Please observe the standard DIN VDE 0855-300 and find out more on the Internet at
http://www.dehn.de
Antenna cable and antenna connection:
It must be possible to connect the outdoor antenna to the 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 25.
.
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:
Activate Tone on on the configuration PC.
Establish an internal connection between the two handsets and
switch on the loudspeaker on both devices.
Leave 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.
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.
7
SE681 WiMAX
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 SE681
WiMAX already meets the latest IEEE 802.16e-2005 standard, a mobile WiMAX standard that offers many extra possibilities.
SE681 WiMAX
With your SE681 WiMAX, you can make use of everything the Internet has to offer:
Downloads
– 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 immediately after clicking a link.
Audio
– Play back audio files straight from the Internet.
– Listen to the radio via the Internet in superb digital quality.
Video
– 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.
Real 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.
8
Product features
Reset button
Ethernet port
Mains adapter connector
Antenna connection for external
antenna
Product features
Wireless high-speed Internet access with a transmission rate of up to 20 Mbps
(14 Mbps downlink, 6 Mbps uplink)
Standard compatibility: IEEE 802.16e-2005
Compatible with all current operating systems
Suitable for home and business facilities
Multi-protocol support: TCP/IP, FTP, HTTP and other Internet related protocols
Easy to set up without installing software
Internet and VoIP connection without the hassle of entering access data
DHCP server and routing functions
High performance and quality of service
Optional: outdoor antenna for improved connection quality
Product overview
Connectors and LEDs
Connectors
9
Product overview
RSSI: signal quality
LAN: Ethernet port
Online: active connection
Power: power supply
For information about the optional outdoor antenna, please refer to "Connecting the
outdoor antenna" on page 15.
For information on connecting the mains adapter, please refer to "Switching on the
devices" on page 17.
For information on the reset button, please refer to "Restarting and resetting the
SE681 WiMAX" on page 17.
For information on the Ethernet port, please refer to "Connecting the PC" on
page 16.
LEDs
The LEDs indicate the status of the SE681 WiMAX and the current signal strength.
NameLEDMeaning
Power: power
supply
Online: active
connection
LAN: Ethernet
port
10
Lights up greenThe SE681 WiMAX is powered correctly.
Does not light upThe SE681 WiMAX is not powered correctly
or the power supply has failed.
Lights up greenThe SE681 WiMAX is registered with a
WiMAX network and ready for use.
Does not light upThe SE681 WiMAX is not registered with a
WiMAX network; it is not possible to establish an Internet connection.
Flashes greenThe SE681 WiMAX is establishing a connec-
tion with a WiMAX network.
Lights up redThe SE681 WiMAX is not ready. Possible
cause: device is overheating or faulty.
Lights up greenCorrect cable connection with a powered
connection partner.
Does not light upNo or incorrect cable connection.
Flashes greenData transfer via the Ethernet port.
i
NameLEDMeaning
RSSI:
signal quality
The connection quality can be detected in two different ways:
CINR (Carrier to Interference and Noise Ratio) measures the signal
RSSI (Received Signal Strength Indication) measures the signal
The LEDs indicate either RSSI or CINR values. The used method is preconfigured by your operator. If RSSI is used the RSSI 1 - RSSI 4 LEDs
will show the signal strength.
0 to 4 LEDs light
up green
All 4 LEDs flash
green
quality.
strength.
The LEDs on the SE681 WiMAX help you to
position the antenna more easily. The LEDs
indicate the signal quality; the more LEDs
that light up, the better the signal reception.
The SE681 WiMAX is being reset to the fac-
tory settings; see "Returning the SE681
WiMAX to factory settings" on page 18.
Product overview
11
Installing the SE681 WiMAX
Installing the SE681 WiMAX
The SE681 WiMAX can only be used with the device's integrated antenna or with one
of the following outdoor antennas:
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 conformity 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 performed 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.
This user guide assumes that installation of the outdoor antenna has been completed.
Choosing your location
Choose 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.
Stand the SE681 WiMAX upright on an even, non-slip surface.
Lay the cables in such a way that nobody can tread on or trip over them.
Position the SE681 WiMAX so that you can see the LEDs.
Do not cover the openings in the SE681 WiMAX housing to ensure the heat can cir-
culate; otherwise, the duty cycle of the device will be reduced or the SE681 WiMAX
switched off to avoid overheating.
Do not operate the SE681 WiMAX under the influence of direct heat sources (e.g.
directly in the sun).
12
Choosing your location
PC with SE681
WiMAX
WiMAX network
base station
If you use the integrated antenna:
Position the 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
SE681 WiMAX on one of the upper storeys. Note that obstructions, particularly
doors and wall coverings containing metal can affect data transmission.
Position the SE681 WiMAX as far away as possible from metallic objects and
coated foils.
SE681 WiMAX with integrated antenna
13
System requirements
i
PC with SE681 WiMAX
WiMAX network
base station
SE681 WiMAX with outdoor antenna
System requirements
To use the SE681 WiMAX, the following requirements have to be fulfilled.
You 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 Half Duplex, 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).
To access the Internet you will need to register your SE681 WiMAX with a WiMAX
Internet provider.
14
When used with the integrated antenna or the outdoor antenna, the
SE681 WiMAX complies with the regulations on limiting the effect of
electromagnetic fields on the general population.
Connecting the SE681 WiMAX
Connecting the SE681 WiMAX
Connect the 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 SE681 WiMAX.
2. Connect the PC to the SE681 WiMAX.
3. Connect the SE681 WiMAX to the mains power supply and switch all the devices
on.
Connecting the outdoor antenna
Screw the connector of the antenna
cable into the ANT WiMAX connector on your SE681 WiMAX. In order to
disconnect the antenna cable from
the connector, open the screw connection.
15
Connecting the SE681 WiMAX
!
i
Connecting the PC
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.
Connecting SE681 WiMAX to the PC
Connect one Ethernet cable plug to the Ethernet port on the SE681 WiMAX.
Connect 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 SE681
WiMAX.
A DHCP server is integrated into your 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.
16
Restarting and resetting the SE681 WiMAX
!
Switching on the devices
Only use the SE681 WiMAX with the mains adapter supplied.
Connect the mains adapter plug to the SE681 WiMAX socket.
Power up the PC.
Connect the mains adapter to the mains power supply.
The system starts up and performs a self-test. After the self-test, the SE681 WiMAX
continually attempts to register with a WiMAX network. Registration may be successful immediately. If not, registration will take place when the SE681 WiMAX is
being configured.
Check the LEDs during startup:
LEDs during startup:
–The Power power supply LED lights up green, and the SE681 WiMAX starts a
self-test. If the LED does not light up, check that the mains adapter is connected
correctly and the power socket is live.
–The LAN 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, the Online
LED lights up green. If the LED does not light up, register your SE681 WiMAX
during configuration.
Restarting and resetting the SE681 WiMAX
The reset button is located inside the SE681
WiMAX so that it cannot be pressed accidentally.
If you need to restart or reset the SE681 WiMAX,
use a thin object such as an opened up paper
clip.
17
Restarting and resetting the SE681 WiMAX
!
Rebooting the SE681 WiMAX
Briefly press the reset button (for less than 5 seconds). The configuration settings
will remain, the SE681 WiMAX will be restarted.
You can also restart the SE681 WiMAX via the user interface or by briefly cutting the
power supply.
Returning the SE681 WiMAX to factory settings
If you no longer have access to your SE681 WiMAX, you can also restore factory settings with the reset button on the back of the device.
When the factory settings are restored, all personal settings are deleted.
Press 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 SE681 WiMAX is restarted. This process takes about
25 seconds. The SE681 WiMAX will then automatically try to set up a connection to a
WiMAX network; depending on the connection quality, 0 to 4 RSSI LEDs will permanently light up green.
Factory settings
After restoring the factory settings, your SE681 WiMAX will be in its original condition:
Proceed as follows to start operating your device again:
MenuSetting
Basic Setup WizardExecute the Basic Setup Wizard to configure your device
and to establish a connection to the WiMAX network, see
"Basic Setup Wizard" on page 25.
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 system password, this will now be valid again. Please check
the documents supplied by your provider.
18
Configuration with the Web browser
i
i
User interface
Configuration with the Web browser
You do not need to install any software on your PC to configure your SE681 WiMAX;
the configuration program is stored on the device. Open this software in the same way
as an Internet page in the Web browser and make the required settings. Your settings
are then stored directly on the device.
On startup, the Basic Setup Wizard helps you set up a connection to the WiMAX network and configure your Internet access.
For experienced users:
– IP address: 192.168.2.1
– Subnet mask: 255.255.255.0
Presentation of the configuration program
To configure your SE681 WiMAX, we recommend the Microsoft Internet Explorer version 7.0 or Mozilla Firefox version 2.0 or their higher versions. However, you can also
use most other or older Web browsers.
Number and amount of the functions and settings provided by the configuration program may differ specific to a project.
Launching the user interface
Open your Web browser.
Enter the IP address of your SE681 WiMAX in the address field of your Web
browser:
http://192.168.2.1
Press Enter (Return).
If a system password has been set up on your SE681 WiMAX, the login screen will now
open.
Enter the system password supplied by your provider in the text box and click Ok.
The start page (Home) of the user interface opens, in which you can change the language if necessary (
Change the system password later to one of your own (see "System password" on
page 39).
If no system password has been set up on your SE681 WiMAX, a security warning will
appear first. You should then assign a system password as soon as possible.
Confirm the security warning with Ok.
page 22).
19
User interface
The user interface start page opens.
If the login screen does not open:
Check the connections; see "Connecting the SE681 WiMAX" on page 15.
If you use a firewall on the PC, it must allow connection to the SE681 WiMAX. If
applicable, switch off the firewall for a test; if you can then open the login screen,
configure the firewall accordingly. For details, refer to the user guide for your firewall.
If you have changed the standard settings on your PC, you might not be able to open
the configuration pages.
For details on how to find and rectify the fault, see "Fault tracing" on page 48.
Saving the user interface address
You can add the address of the login screen to your favourites/bookmarks so that
you will no longer need to enter the IP address manually in future:
– Internet Explorer: Add to Favorites button
– Firefox: Bookmarks > Add Bookmark
20
User interface
Language Logout
Operating Mode
Internet
...
...
...
Antenna selection
HomeAdvanced SettingsBasic Setup WizardStatus
1
2
3
4
5
6
1
2
3
4
5
6
UI elements
The user interface you open with the Web browser is divided into the following sections:
Tab selection:
Open the Home, Basic Setup Wizard, Advanced Settings or Status tabs to
display the contents of each configuration area.
Language button:
Select your language. This button is only available on the Home screen.
Logout button:
This button is only displayed if a system password is set up.
Log off from your SE681 WiMAX.
Open Help window button:
Open the online Help relating to the menu item currently in the working area.
Menu area:
Click the menu items to display the respective pages of the currently open configuration area or a submenu.
Working area:
Check the settings on your SE681 WiMAX and change them as necessary.
21
User interface
Setting the language
The user interface is initially displayed in the language that has been set by your operator. Other languages may be available.
If you wish to change the preset language, click on the Language button at the top
right. This opens the page for setting the language.
Click the arrow next to the selection field to open it and select your language.
Click Ok to change the language.
Buttons
Open online Help.
Click this button if you require information about the screen you currently
have open. The corresponding Help topic is opened.
LogoutButton with which you end the connection between the PC and the SE681
WiMAX.
Back Return to the previous screen in the Basic Setup Wizard.
Next Move on to the next screen in the Basic Setup Wizard.
Cancel Changed settings are not applied and you return to the highest level.
Ok Save the settings and return to the highest level.
End Save the settings and exit the Basic Setup Wizard.
You will see other buttons depending on the screen currently open. If you require further
information about these, open the online Help at the appropriate place using the question mark button.
Input fields
On the configuration screens, change the required settings using the following input
fields:
Option buttons:
Two or more buttons, of which one is activated. As soon as you click
another option button, it is activated and the one previously selected is
reset. You will find option buttons wherever there is a choice between
several possibilities, e.g. whether or not you wish to use an external or
the internal antenna.
Text field:
Enter text or digits. Click in the field to activate input mode. You will find
text fields at points where you can specify text or numbers as required,
e.g. a new system password.
22
User interface
Opening online Help
There is an online Help for each screen of the configuration program, which you can
open directly on the screen.
Click the question mark button at the top right.
The online Help is shown in the right pane of the configuration program.
If necessary, click Open Help window to open the online Help in a separate
window.
Menu structure
The menu of the user interface on your SE681 WiMAX is split into the following main
areas: Home, Basic Setup Wizard, Advanced Settings and Status. Under these
menu options, you will find the following areas:
MenuDescription
Home
Basic Setup Wizard
Advanced Settings
Status
Start page and starting point for all configuration and administration tasks. It also shows the connection status and allows you to
set the language, see "User interface" on page 19.
Establish a connection to the WiMAX network, optimise the
antenna direction and set up your Internet connection , see "Basic
Setup Wizard" on page 25.
Configure your Internet access and your local network and perform administration tasks. For example, you can enter a system
password for access to your SE681 WiMAX or change it, see
"Configuration with the Web browser" on page 19.
Obtain information on the operating status of your SE681 WiMAX
and read off the device and version numbers as well as IP
addresses; see "Status" on page 42.
Internet See "Internet" on page 43.
Local Network See "Local network LAN" on page 44.
Device Status See "Device status" on page 44.
Radio Status See "Radio status" on page 45.
23
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