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Wireless |
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High-speed wireless
systems are used to provide internet access
to end-users using point-to-point or
point-to-multipoint architecture. Wireless
data links take place where there is no
infrastructure for internet access or in
places where bandwidth offered by current
channels is too low. With our wireless
equipment you can get high bandwidth on a
very long distances at very reasonable
price. Our equipment provides various
features including firewall, NAT, VPN,
Bandwidth Management, QoS and many more.
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Why choose ABC Online?
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Cost effective solution
High-speed wireless data links (Up to
108Mbps)
Connection distance up to 70 km without
repeater sites.
IP - NAT, Routing, DHCP
Security - Firewall, Secure Tunnels
Control - Queues, Proxy, Accounting, HotSpot
Fast and simple installation for base
station and clients
Reliable and instant 24 hour internet access
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Basic requirements to create a
wireless links are:
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Direct Line of sight between both points of
presence
Distance between points
of presence is:
up to 25 km for point-to-multipoint links
up to 70 km for point-to-point links
Use of 2.4 or 5.2-5.8 GHz
solutions according to the local
regulations. In some countries obtaining a
special license might be
required.
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Our wireless systems come
with Mikrotik RouterOS software
preinstalled. RouterOS will enable you to
use many features such as: firewall, NAT,
bandwidth management, different kinds of
tunnels, HotSpot and others.
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Point-to-point links
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PtP
links are an excellent way how to make
connections between two sites and achieve
high data transfer speeds. This is an ideal
way how to connect two offices. Also these
type of wireless links are very useful if
you need to create backbone link from some
distant radio access point to your main
Internet source. For creating such
connections we recommend to use our 5 GHz
and 2.4 GHz wireless client kits.
A customer from Bulgaria reports:
"This 35Mbit at 57km is with non-turbo mode,
unidirectional, with random-data=no.
Machines on both ends are 700MHz C3. During
the test, both routers (that have few more
Atheros interfaces each), were not
transporting traffic."
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Point-to-multipoint setup
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PtM connections are the most usual way how
wireless ISPs connect their customers. They
put access point somewhere high in the tower
above the city or on some high building and
then point their client antennas to this
access point.
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Backbone link + AP
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This is a point to multi-point link with
additional wireless cards and antenna for a
backbone connection. Such links are useful
when creating a WISP infrastructure, for
example you have main Internet source with 5
GHz base station and lots of 2.4 GHz clients
in various sides of the city. Such kits can
be but in localized parts of the city and
contain 2.4 GHz unidirectional antenna and 5
GHz directional antenna to main base
station. |
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Nstreme
and Nstreme2
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These are MikroTik
proprietary wireless protocols to achieve
outstanding performance on a very long range
links. Regular wireless links will have
large time delays for data traveling on a
long distances, with nstreme you do not have
to worry about this anymore.
Nstreme 2 goes even further by using two
wireless cards in each end - one for
transmit and one for receive.
Our customers have links of 60 km and speed
of 35 Mbps without turbo mode.
A customer from Bulgaria reports:
"65 km, AR5213, 37 Mbit with n-streme (TCP
test), We're using 2.4 GHz proccesors or
better, 5GHz-turbo mode"
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To make this
setup, you can use:
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Two PCs with Celeron 700 or higher
Four Atheros PCI wireless cards
with pigtails
Four antennas
Two IDE flash disks with latest
version of RouterOS software.
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WDS
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WDS (Wireless Distribution System) is the
best way how to interconnect many access
points and allow users to move around
without getting disconnected from network.
Using this system you can cover large areas
and allow users to move for large distances
while still being on-line. This system
allows packets to pass from one wireless AP
(Access Point) to another, just as if the
APs were ports on a wired Ethernet switch.
APs must use the same standard (802.11a,
802.11b or 802.11g) and work on the same
frequencies in order to connect to each
other.
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