...connecting your business
LANCOM WIRELESS SOLUTIONS
Your Corporate Wireless Network Solution
LANCOM SYSTEMS – WIRELESS LAN SOLUTION GUIDE
YOUR CORPORATE WIRELESS NETWORK
SOLUTION
Wireless LANs – State-of-the-Art
The release of the wireless LAN standard IEEE 802.11b in
1997 and its worldwide application has paved the way for
the success of wireless local area networks. Frequency
bands between 2.4 and 2.48 GHz are available worldwide
licence-exempt for personal and professional use. In 2003
the IEEE 802.11g standard increased the bandwidth within
this frequency band up to a total of 54 Mbps. In 2002 the
frequency band between 5.15 and 5.75 GHz was also
opened up. The IEEE 802.11a standard uses this frequency
band with transmission rates of 54 Mbps (and up to
108 Mbps in turbo mode).
Nowadays, wireless LANs can not only be found in industrial
installations or large enterprises, but also in medium-sized
company offices, in schools, public authorities or in public
places such as airports, hotels or cafes.
Flexibility – Mobility – Ease-of-Use
The benefits of wireless LANs are evident – more flexibility,
more mobility and ease-of-use at lower costs. A wireless
LAN is installed at unparalleled speed, without the delays
and expenses of constructional alterations and cable
installations which interrupt daily work when implementing
wired LANs. Furthermore, compared with wired LANs,
wireless networks can revolutionize the way network users
do their work. Every user can do his work exactly where he
needs to: at his desk, in the conference room, in his colleague‘s
office down the hall, in the adjacent building or even at a
public wireless hotspot such as at a café. Project teams can
be instantly put together and in particular fast-changing
enterprises can easily redeploy or expand workforce
and facilities, protecting their investments.
Safety Requirements – Environmental Issues
Wireless LAN products compliant with IEEE 802.11 were
especially designed for use in offices, branches or similar
work environments with shorter-range requirements. The
signal power level for the required devices does not need to
be very high and therefore poses no health risks. With a
maximum radio frequency (RF) exposure level of under
100 mW, the signal power level is significantly lower than
that of commonly used GSM mobile phones, which use up
to approx. 2000 mW (4th generation GSM devices, frequency
range 880-960 MHz).
Cost Effectiveness
It really pays off: a comparison with conventional wired
networks shows that wireless LANs have clear advantages,
beginning with the initial investment costs. E.g.: a new
office floor is to be opened. Ten employees are to be
connected to the existing corporate network, five of them
working with laptops. A wired connection using cable, hubs
or switches for this type of scenario would cost around
3,000 Euros incl. installation. If, however, a LANCOM Access
Point is used with ten AirLancer-Wireless Network Adapters,
costs would amount to no more than 1,200 Euros ie. less
than half the price! Existing wired LANs don‘t have to be
entirely replaced by wireless networks. The wireless LAN
concept is ideally suited to integrate into network
infrastructure that is already in place, augmenting and
supplementing existing Ethernet networks. In addition,
wireless LANs can be used to connect existing wired LANs in
separate buildings to each other, without the expense and
inconvenience of installing a complicated structured cabling
scheme. Without the need of costly wiring, these so-called
wireless bridges can achieve transmission ranges of several
kilometers at a cost of less than 2,000 Euros; a price wired
networks simply can‘t compete with.
Security
Wireless networks are only seemingly less secure than their
wired variants. In fact, unlike the Ethernet, data encryption
and access control are an integral part of wireless LANs. The
use of new and better technology such as IEEE 802.1x with
advanced authentication protocols or VPNs (Virtual Private
Networks) further increases protection from unauthorized
access.
It is in particular this combination of the various methods,
which ensures that wireless LANs can be used for applications
with the highest security demands, making them a viable
choice for security-conscious enterprises. In fact, the use of
VPN guarantees a higher level of security than is often found
in wired installations, which is a big advantage for
building-to-building networks via WLAN.
LANCOM SYSTEMS
…connecting your business
Compliance with Standards
Features & Performance
In order to guarantee the highest possible compatibility
level, LANCOM Systems adheres to IEEE industry standards.
LANCOM Wireless Base Stations support both the IEEE
802.11g (backward compatible with IEEE 802.11b) and IEEE
802.11a standards. The IEEE 802.11g standard uses the
2.4 GHz ISM (Industrial, Scientific, Medical) frequency band,
while the IEEE 802.11a standard uses the 5 GHz frequency
band.
LANCOM Wireless Base Stations are based on high speed
RISC processors and run on the LANCOM operating system.
Together these guarantee high performance and reliability
tailored to every individual application. Our products offer a
wide range of functions that go far beyond so-called
standard functionality.
Quality and Experience
LANCOM wireless LAN products are based on LANCOM
Systems‘ own router technology. For ten years now,
LANCOM routers have been known for their reliability and
high quality; they are highly innovative products geared to
market requirements. Guarantee periods of up to 3 years are
granted on all LANCOM access points, routers, and
gateways.
Customer Orientation
LANCOM products and solutions are specifically tailored to
match every customer‘s unique business requirements. Our
portfolio includes complete wireless LAN solutions that are
tailored to our customer‘s needs and include client adapters
and special antennas. Our own operating system LCOS
ensures standardized operation of all LANCOM products
and easy configuration via our Windows tools LANconfig
and LANmonitor or platform-independent via browser
(WEBconfig).
Investment Protection
LANCOM products and solutions deliver long-term
productivity gains. Customers can obtain free software
updates to new standards and features at any time.
LANCOM products are designed for long-term use and are
dimensioned to ensure sufficient system capacity for
continued operation. As a pioneering, innovative company
LANCOM already supports the power-over-LAN standard. By
receiving power supply over the Ethernet LAN cabling,
access points can be easily positioned, independent of the
conventional mains network.
Security
LANCOM Wireless Base Stations also set standards in the
field of security: authentication according to IEEE 802.1x,
optional IPsec VPN, as well as WEP encryption with up to
128 bits, and a stateful inspection firewall reliably protect
your network from attacks. Maximum security within a
network is ensured by VPN.
Service
Regular free updates across all product generations for
LANCOM wireless are made available to customers by
LANCOM Systems on the Internet. LANCOM‘s own technical
support is directly available to customers and partners via
hotline, email or Internet.
LANCOM SYSTEMS – NETWORKS
Temporary Networks
Enterprise Network
The need to set up local networks for limited periods of time
When complementing your existing wired corporate network,
arises all the time: at conferences or training events on rented
using the more mobile and flexible wireless LAN technology,
premises, when project teams need to work together, when
one of the prime concerns tends to be the security aspect of
communicating in an outdoor network or in order to extend the
such installations. Because LANCOM‘s Wireless Access Points
corporate network to the mobile workforce and field staff. The
support numerous security standards and mechanisms from
simplest solution for these types of scenarios is two PCs or
802.1x/EAP, RADIUS, and access control, to WEP and VPN,
notebooks provided with one wireless network adapter each,
optimal security solutions are ensured for each and every
setting up a wireless LAN connection to each other, without the
demand. The quality of communication within a WLAN is
need of any additional hardware. These so-called ad-hoc
determined by criteria such as performance, reliability, and
networks can incorporate up to 16 users, working together in
flexibility. The roaming functionality of LANCOM Wireless
a peer-to-peer network. Direct access in a plug&play fashion to
Access Points makes unlimited extension of your WLANs possible.
conventional wired networks is possible using a LANCOM
Should one wireless cell not be enough to connect all wireless
Wireless Access Point; as many as 255 users can be managed
stations within a network, then further access points can be
for each wireless base station.
added, with seamless handover possible between them. With
our LANCOM 3550 Wireless we offer an access point, with up
to two wireless units, increasing flexibility, coverage, and
LANCOM 3550 Wireless
throughput considerably. Wireless networks within the 2.4 GHz
IEEE 802.11b/g and 802.11a simultaneously
at full performance
and 5 GHz bands can be used simultaneously, giving users the
advantages of both IEEE 802.11g/b and IEEE 802.11a
standards (see chart on WLAN standards).
IEEE 802.11b/g
Office scenario with IPSec over WLAN
108 Mbps
IEEE 802.11a
(second WLAN card optional)
108 Mbps
LANCOM 1811
Wireless DSL
WA
N
VP
N
DSL/Cable
Internet
According to the BSI (german authority for security in informtion technologies),
IPSec over WLAN is the most secure method for encrypting data connections
over Wireless LAN. WLAN Clients establish the VPN connection to the VPN
Gateway using the LANCOM VPN Client. Wireless integrated router such as
LANCOM Wireless 1811 Wireless DSL or LANCOM 1821 Wireless ADSL are
already equipped with a powerful VPN Gateway. Common applications on
WLAN and connections via WAN to branch offices are realized quickly and
comfortable. Optimized performance for IPSec over WLAN offers additionally
the optional hardware encryption acceleration that is delivered together with
an upgrade of channel capacities for the mentioned devices.
Wireless Hotspot Access
Wireless LAN is a form of technology not exclusively geared to
closed networks. With appropriate authentication and billing,
public network access is also possible. Wireless Internet services
can be offered in public places and venues (hotspots) such as
airports, hotels, train stations, restaurants or cafes by using the
LANCOM Public Spot Option or LANCOM W-Spot Box (limited to
Germany only).
Building-to-Building Networks
In order to connect several buildings within a network – which are
within eye-sight, but several hundred meters apart – a wireless
LAN is often the best and least expensive choice. LANCOM Access
Points can not only be used to connect client stations (e.g. PCs or
notebooks), they can also be used as network bridges; if necessary
even in 108 Mbps turbo mode. Mixed mode between client and
bridge modes is also possible (wireless distribution system).
Wireless Internet Access
LANCOM Wireless Access Points offer corporate customers and in
particular small- to medium-sized companies very interesting
possibilities for wireless internet access via ISDN, DSL or cable
modem. The Ethernet port of our LANCOM 3550 Wireless,
LANCOM L-54g Wireless and LANCOM L-54ag Wireless models
can be connected directly to a DSL or a cable modem, for
example, giving all stations high speed Internet access.
Wireless in and
around Buildings
108 Mbps
Set-up with gain antenna
and LANCOM 3550 Wireless,
enabling two parallel wireless
cells – indoor and outdoor.
LANCOM L-54 Wireless
Access point with DSLoL (DSL over LAN)
Package solution for LAN (router) and WLAN (access point)
LANCOM 3550 Wireless
DSL modem
LAN
WLAN
Switch
108 Mbps
Connection of a DSL
modem to an external
switch port
DSL modem
LANCOM L-54 Wireless
Standard applications of access points are on the one hand the extension of
existing LANs by a wireless LAN, or on the other hand the connection of
WLANs to the Internet via an existing DSL interface and integrated DSL router.
Thanks to LANCOM L-54 Wireless‘ DSLoL interface, both are simultaneously
possible. The LAN and the DSL modem are both connected to one and the
same interface. In order to guarantee the required security, LAN and modem
are connected to each other via an external switch, so that LAN and WLAN are
protected by the firewall, which is integrated in the DSL router of the access
point.
A common application is simultaneous access of several computers to the
Internet, using an existing DSL connection. In buildings constructed with a lot
of reinforced concrete, the signal power level (‚illumination‘) may not be
enough to cover more than one floor. In order to reach another floor, without
having to install another access point, or to even make wireless access available to
an adjacent building, LANCOM 3550 Wireless with its second wireless module
is the perfect solution. A high-gain AirLancer Extender Antenna can be
attached to it, which allows connection to more remote clients. Furthermore,
the additional wireless card enables simultaneous coverage of the rooms in
one building. With the AirLancer Extender Outdoor Antenna the areas around
the building or in the garden can also be covered.
WIRELESS PRODUCT LIST Access Points and Routers
108 Mbps
LANCOM 1811/1821*
Wireless (A)DSL
108 Mbps wireless LAN
VPN router
108 Mbps
108 Mbps
LANCOM 1511/1521*
Wireless (A)DSL 54 Mbps
wireless LAN router and
office gateway
LANCOM 3550 Wireless
simultaneous dual band
108 Mbps high-end wireless
LAN access points
LANCOM L-54g Wireless
54 Mbps high speed
wireless LAN access point
LANCOM L-54ag Wireless
108 Mbps dual band
high speed wireless LAN
access point
Applications • access point
• wireless router
• VPN gateway
• wireless outdoor bridge
• office DSL/ISDN gateway
• remote maintenance
• access point
• wireless router
• office DSL/ISDN gateway
• hotspot set-up
• remote maintenance
• access point
• wireless router
• wireless relays
• wireless outdoor bridge
• wireless VPN gateway
• hotspot set-up
• access point
• hotspot set-up
• central Internet access
• access point
• wireless outdoor bridge
• high speed applications
Connection
• DSL/cable modem (1811)
• ADSL (1821)
• 4 x LAN, WAN, ISDN, WLAN
• outband
• DSL/cable modem (1511)
• DSL/cable modem
• ADSL (1521)
• LAN, WAN, WLAN
• 4 x LAN, WAN, ISDN, WLAN
• outband
• LAN
• DSL modem via LAN
• outband
• LAN
• DSL modem via LAN
• outband
Frequency
Band
• 2400-2483.5 MHz (ISM)
or
• 5150-5750 MHz
• 2400 - 2483.5 MHz (ISM)
• 2400 - 2483.5 MHz (ISM)
or
• 5150 - 5750 MHz
• 2400 - 2483.5 MHz (ISM)
• 2400 - 2483.5 MHz (ISM)
or
• 5150 - 5750 MHz
Benefits
• VPN gateway and IPsec
over WLAN integrated
with 5 channels (from
LCOS 3.32)
• optional 25 channels and
hardware accelerated VPN
• DSL Router for LAN, ISDN,
WLAN with 4-port switch
• access point for 802.11a
or g and/or b standard
with two dual band
diversity antennas
• increased performance
through turbo mode for
802.11a with up to 108
Mbps transmission rate
• high security level thanks
to firewall with intrusion
detection, flexible use of
filters
• ISDN interface for office
communication and remote
management
• ISDN interface for office
communication and
remote management
• Internet gateway and DSL
router for LAN, ISDN,
WLAN with 4-port switch
• access point for 802.11g
and/or b standard with
two diversity antennas
• standardized centralized
configuration,
administration, and
monitoring of many
devices with LANtools
• high security level thanks
to firewall with intrusion
detection, flexible use of
filters, VPN passthrough
• secure wireless LAN thanks
to authentication
according to 802.1x/EAP
with key rollover and WEP
• access point for 802.11a, g
• two dual band diversity
antennas in 802.11b
• turbo mode for 802.11a
with up to 108 Mbps
• affordable facility
connectivity via VPN
• protection from attacks
• power over Ethernet
• connection to xDSL ports
via firewall through
integrated WAN interface
• access point for 802.11g
• two diversity antennas
• user-friendly management
tools (LANtools)
• comprehesive security
features
• above standard
functionality (bridging,
relay functions, ACL,
VPN pass-through, etc.)
• power over Ethernet
• integrated DSL router/
firewall
• supports hotspots
• increased performance in
turbo mode for 802.11a
with up to 108 Mbps
• access point for 802.11a
and/or g
• two dual band antennas
• comprehensive security
features
• above standard
functionality (bridging,
relay functions, ACL,
VPN pass-through, etc.)
• user-friendly management
tools (LANtools)
• Power over Ethernet
• integrated DSL router/
firewall
• supports hotspots
Guarantee
3 years & free software
updates
3 years & free software
updates
3 years & free software
updates
3 years & free software
updates
3 years & free software
updates
Item no.
LANCOM 1811 Wireless DSL
EU 61116
UK 61117
LANCOM 1511 Wireless DSL
EU 61111
UK 61122
EU 61112
UK 61113
EU 61101
UK 61103
EU 61102
UK 61104
Item no.
LANCOM 1821 Wireless ADSL
Annex B: 61118
Annex A: 61124
Annex A: 61119 (UK)
LANCOM 1521 Wireless ADSL
Annex B: 61114
Annex A: 61123
Annex A: 61115 (UK)
*Produkte verfügbar ab: Q2/2004
LANCOM offers a large array of extensions and utilities to
indoor and outdoor antennas of the AirLancer Extender series.
complement LANCOM Wireless Access Points and Routers,
Furthermore, easily manageable and billable public wireless
including Wireless LAN Client Adapters of the Airlancer series in
access can be made available simply and swiftly, using the
the form of PC cards, USB adapters or PCI cards, as well as
individually tailored Public Spot Solution LANCOM W-Spot Box.
List of Antennas
Recommended LANCOM Product
Model
Technical
specifications
Accessories
Mounting
AirLancer
Extender O-18a
(outdoor, 5 GHz)
Item no. 61210
18° directional
antenna
+ 18 dBi gain
3 m cable
+ 1 m cable
wall or pole mount max. range of
1400 m with up
to 108 Mbps
within 5 GHz
band
AirLancer
30° directional
Extender O-30
antenna
(outdoor, 2.4 GHz) + 14 dBi gain
Item no. 60478
9 m cable
wall or pole mount max. range of 1000 m at up to 54 Mbps within 2.4 GHz band
AirLancer
70° directional
Extender O-70
antenna
(outdoor, 2.4 GHz) + 8.5 dBi gain
Item no. 60479
6 m cable
wall or pole mount max. range of 600 m at up to 54 Mbps within 2.4 GHz band
(steerable)
AirLancer
Extender I-180
(indoor, 2.4 GHz)
Item no. 60914
2 m cable
mounted on
suspended ceiling
up to 50% more range at up to 54 Mbps within 2.4 GHz band
table stand or
wall mount
up to 100% more range at up to 54 Mbps within 2.4 GHz band and
up to 100% more range at up to 108 Mbps within 5 GHz band
180° directional
antenna
+ 4 dBi gain
AirLancer
60° indoor antenna 1,5 m cable
Extender I-60ag 2.4 GHz: +6 dBi gain
(indoor, dualband 5 GHz: +8 dBi gain
2.4/5 GHz)
Item no. 61214
LANCOM
1811/1821
Wireless (A)DSL
LANCOM
LANCOM
1511/1521
3550
Wireless (A)DSL Wireless
–
LANCOM
L-54g
Wireless
max. range of –
1400 m with
up to 108 Mbps
within 5 GHz
band
LANCOM
L-54ag
Wireless
max. range of
1400 m with
up to 108
Mbps within
5 GHz band
Technische Hochschule Karlsruhe:
Progressive Application Scenarios
Within Wireless University
With the help of LANCOM’s wireless LAN solution, Germany’s oldest
polytechnic, known for its pioneering and innovative work in the field of
data processing, is offering its students, lecturers, and employees easy
access to both the Internet and its campus network, no matter where they
are. This highly effective platform for new forms of university teaching,
learning, and academic work opens up alltogether new application scenarios
and once again justifies the polytechnic’s top international ranking.
LANCOM Systems provided its innovative WLAN technology and competently
and reliably supported the customer.
Alemannia Aachen:
Pioneering Technology in Football Stadium With Public
Wireless Internet Access
Alemannia Aachen, one of Germany‘s oldest and most traditional football
clubs, brings state-of-the-art communication technology to the stands of the
football stadium, using LANCOMs wireless LAN solution. With the
implementation of WLAN infrastructure, the club now offers its visitors a
useful service, that is both simple and fast, and from which in particular the
members of the press benefit. Thanks to innovative technology and
competent on-site consultation, this ground-breaking wireless LAN solution
was quickly implemented. Instead of using hitherto conventional GSM
connections (mobile phones), text and photos can now be sent directly to
the press offices at a thousand times the previous speed.
WLAN STANDARDS: FACTS AND FIGURES
IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
Frequency
5 GHz
2.4 GHz
2.4 GHz
Channels
(max./non-overlapping)
19/19
13/3
14/3
Hypothetical data rate Mbps
54
108 Mbps (turbo mode)
11
54
5 meters (Kbps)
10 meters (Kbps)
30 meters (Kbps)
5200
3987
2875
560
560
560
2360
2360
2360
Hypothetical
range
15-20 meter higher max. transmission
rate up to 30 dBm and range of
several kilometers outdoors
30-50 meters
40-60 meters limited by max.
transmission rate of 20 dBm
Fault resistance
• relatively unpopulated band
• considerably more channels
available
–
• highly populated ISM frequency
band (Bluetooth, DECT,
mikrowaves, etc.)
Compatible with
802.11h
802.11g
802.11b
Advantages
• high data rate
• free frequency band
• higher transmission rate than
802.11b/g
• good supply
• high market penetration
• more coverage within buildings than
802.11a
• high data rate
• compatible with 802.11b
• more coverage within buildings
than 802.11a
Disadvantages
• not compatible with widely
used 802.11b devices
• low data rate
• highly populated frequency band (due
to microwave, Bluetooth, DECT, etc.)
• high market penetration
• highly populated ISM frequency
band (due to microwave,
Bluetooth, DECT, etc.)
• poorer data throughput in
802.11b mode
Verdict
for highest transmission speeds;
ideal for outdoor applications
secure and inexpensive choice
the new high speed standard,
compatible with 802.11b
Data rate – tested
Headquarters
LANCOM Systems GmbH
Adenauerstr. 20/B2
52146 Wuerselen
Deutschland
Sales Offices & Sales Agencies
Munich
Berlin
Vienna
London
Lauwe (Benelux)
Prague
Bologna
Athens
Phone
+49 (0)2405 49936-0
Fax
+49 (0)2405 49936-99
E-Mail
info@lancom.de
Internet
www.lancom-systems.com
LANCOM, LANCOM Systems, LCOS und LANvantage are
registered trademarks. Other names mentioned may be
trademarks or registered trademarks of their respective owners.
Subject to change without notice. No liability for technical
errors and/or omissions.
110219/0304
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