GeoDesy FSO GigaPico Next AutoFocus User manual

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GigaPico Next
AutoFocus
Users’ Manual 1.1

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Table of contents
1Introduction...................................................................................................................... 4
1.1 What is FSO?........................................................................................................... 4
1.2 Why is it important?............................................................................................... 4
1.3 Optical Free-space Transmission .......................................................................... 6
1.4 Typical applications................................................................................................ 7
2Interfaces for the Giga Next AF Series........................................................................... 8
2.1 1000Mbps TP interface........................................................................................... 8
2.2 1000 Mbps FO interface......................................................................................... 8
3Sites of installation........................................................................................................... 9
3.1 Key factors of operation......................................................................................... 9
3.2 Preferred installation sites ..................................................................................... 9
3.3 Distance measurement.......................................................................................... 11
3.4 Direct sunshine...................................................................................................... 11
4Eye safety........................................................................................................................ 12
5The mounting bracket.................................................................................................... 13
5.1 Mounting brackets for the X Series .................................................................... 13
6System installation......................................................................................................... 15
6.1 On the table test .................................................................................................... 15
6.1.1 Alignment of the PX0500E1000TP................................................................... 16
6.1.2 How to use the alignment base ........................................................................... 16
6.1.3 Fine tuning.......................................................................................................... 17
6.2 Meanings of the LCD............................................................................................ 17
6.3 AF adjusment method .......................................................................................... 18
6.4 Connecting to your Network................................................................................ 20
6.4.1 PoE 802.3 af connection.................................................................................... 20
6.4.2 System layout...................................................................................................... 20
6.4.3 System layout with GEO20 ................................................................................ 21
7Management................................................................................................................... 22
7.1 Features.................................................................................................................. 22
Login Screen and password........................................................................................ 22
Head information screen............................................................................................. 22
Status info screen........................................................................................................ 23
Device setup................................................................................................................ 24
Network Setup ............................................................................................................ 25
SNMP Setup ............................................................................................................. 27

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Security...................................................................................................................... 28
Auto-focus setup (AF) ................................................................................................ 28
Mandatory Management Activation ........................................................................... 30
Firmware update ......................................................................................................... 31
7.2 Network Interface software update..................................................................... 33
7.2.1 Update cabel........................................................................................................ 35

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1 Introduction
1.1 What is FSO?
FSO is free space optics provides point-point broadband communications using
Laser Light as the transmission medium.
FSO is a state of art data communication method which is based on a very old
communication solution. Ancient Chinese developed a protection system against the
Mongol tribes, building watchtowers within the line of site to other towers. And as
soon as the towers saw some hostile sign on the horizon they use they shield to
reflect the sun to the remote towers. In this way the area could be prepared against
the attack in a very short period of time.
In the ancient times for this communication use the mirror
as a transmitter and the sunlight was the light source, and
the receiver was the remote guard’s eye. This basic
signalling method was developed later into up
communication device which used „line coding”. This
allowed the guards to tell the number of enemy, or the
direction they are coming from.
Current FSO systems use a laser-diode as a light source,
and a receptor diode (photo diode) to receive the signals
coming from the laser diode from the transmitter side. But
the basic elements are still the same: line of site between
the communication nodes, and individual line coding. It is all about performance.
GeoDesy FSO offers FSO systems with the highest power budget available on
the market.
1.2 Why is it important?
Because of in the ancient Chinese times, the rain, the fog, or even the cloudy
weather, could impact the operation of the whole system.
In the FSO units, comprising light source and receiver the cloud problem was
solved, but development conditions still can impair
performance. To go throw the rain, the fog, or snow you
need more and more power to be seen from the remote
side. Achievable power levels are limited by a number of
factors including eye safety.
In this way there is no other choice to see more than
„training the eye”. Making the receiver more and more

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sensitive to sense delight emitted from the remote side. GeoDesy FSO offers high
transmit power and also very hard receiver sensitivity. These two factors combined
to provide one of the best performing FSO systems on the market today.
To meet the demands for every higher bandwidth, GeoDesy FSO (Europe) Limited
continues to invest heavily in research and development with the newest product line
which offers Gigabit speeds being launched.
This manual describes the GeoDesy FSO Next series of free space laser
transmission system.
The GeoDesy FSO Next product range offers cost effective reliable free space
laser transmission for two Mbps up to 1000 Mbps data to the air, where a clean line
of site is available. It delivers the most effective point-to-point connection between
computer networks or telephone exchanges.
No need for installing cables, no rental costs, no licensing requirements.
Ideal for urban areas or city centres, where the use of these lines are expensive.
Suitable for factories or industrial environments where high noise level can interfere
with the transmitted data. The best choice to make a connection across rivers and
other natural or artificial obstacles, where cable is not available.
The transmission technique used in the GeoDesy FSO devices provides
transparent and wire-speed data transfer with virtually zero latency. Because they
use infrared light as the transmission medium, GeoDesy FSO system do not
require frequency licenses and the transmission is not effected by electro-magnetic
or radio-frequency interference. Basically the GeoDesy FSO link can be
considered as a virtual fibre in the air, which ends in real fibre optic cable at both
ends.
Our product is built using high quality components for operation in even the most
adverse conditions.
Metal housing gives robust, waterproof environment for the electronics.
The shield protects the device from direct sunlight and provides extra air isolation.
The GeoDesy FSO Xsystems comprise two laser-heads
one at each end. The interface connections are housed in the outdoor unit together
with the PSU of the system.
Best practises were employed in cost engineering throughout the development of
GeoDesy FSO.

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1.3 Optical Free-space Transmission
The principle used in free space laser transmission is very similar to the one is used
for fibre optic transmission. The difference is while fibre optic devices use electronics
and optics optimized for transmission to the air. Also one can observe to the
similarity in the transmission properties. No galvanic contact, no ground-loops, no
need for surge protection, noise immunity, long distances, high bandwidth.
What makes it unique –and difficult to design –is that it does not require any
transmission medium like fibre or copper, but it has to cope with the dynamically
changing parameters. For instance while the attenuation of an optical fibre is
constant, the attenuation of the atmosphere between the laser units can change
dramatically (depending on the weather conditions).
The laser-heads are usually placed on top of building, where the clean line of site is
guaranteed and the beam cannot be interrupted.
In the head the incoming signal is amplified, encoded, and then drives the laser-
diode. The transmitter optics assures the proper beam shape and controls the beam
divergence. The receive optics perceives and directs the transmitter signal to the
photo diode. The diode converts it back into electrical, than it is decoded, amplified
and converted.
There are several things that can influence the quality of transmission. We can
classify those factors into three main groups.
System conditions - transmitting power, transmitter’s wavelength, beam divergence,
receiver optics diameter, receiver sensitivity, parameters of optical system and
casing. These parameters determine the system’s characteristic at a certain
distance and are controlled by system design and factory set up.
Weather conditions - molecular absorption, particle scattering and turbulence. These
elements have great effect on the operational conditions of the system. We do not
have very much influence on them; proper product selection can eliminate the
undesirable effects.
Environmental conditions - building movements, direct sunlight, refractive surfaces.
These are also key factors related to the installation sites and can be controlled by
appropriate site survey and system installation

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1.4 Typical applications
Most typically the GeoDesy FSO Next product are is used to interconnect LAN-
s. The system is protocol transparent, thus other applications also can be taken into
consideration. Appropriate interface converters are needed and system bandwidth
must be matched for that.
Here we collected some circumstances, where the deployment of the GeoDesy
FSO is the most adequate as a cost effective solution.
Those are:
Areas with natural or artificial obstacles
Where cable is actually not an alternative, like
across rivers or railways or in rugged terrain.
Urban
areas
Where only leased lines are available with
limited speed, and high rental cost. With
GeoDesy FSO links you can establish on line
LAN-to-LAN connections.
Industrial areas
Where you have noisy environment with high EMI
or RFI. Factory buildings, airport objects can be
connected through laser link.
ISP connections
Where high
bandwidth is required. ISP’s can offer high-speed links
to their customers or trunks can be established
between ISP’s instead of expensive leased lines.
Corporate
LAN
ISP

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2 Interfaces for the Giga Next AF Series
2.1 1000Mbps TP interface
The GeoDesy FSO Giga Next AF series products are designed to provide
easy-to-use and cost-effective solution for interconnecting Local Area Networks. By
utilizing standard Category 5e cable and using standard IEEE802.3af interface the
deployment of the system is easier than ever before. The transparent and wire
speed data transfer together with virtually zero latency assures the easy integration
of the system in all environments.
The Giga Next AF systems should be considered as repeaters in the network. So
the installation distance between the head and the network device is 100m. The
distance on a back to back site is maximum 5 meters, between the heads without
signal regeneration.
The Giga Next AF systems connecting to the network with two RJ 45 cable which
provides the power required for operation and the data. The system requires IEEE
802.3af Power over Ethernet switch or power injector. The power consumption suits
to the standards described in the standard. Also provides fast and easy connection
for the management system for more details please see the chapters below. The
system is certified Class 1M product, this way 100% eye safe.
2.2 1000 Mbps FO interface
The GeoDesy FSO Giga Next MF system is ready to be upgraded with a Single
or Multi mode SC fiber interface with SX or LX option.
The power is provided via the same cable as in the case of the TP interface
systems.

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3 Sites of installation
3.1 Key factors of operation
There are four key issues that the site survey has to shed light on. Proper system
operation cannot be guaranteed without satisfying all of the four requirements.
Clear line of sight - The entire optical path between the two ends must be free
of any obstacles. It not only means that one has to see the other side, but other
possible sources of disturbance should also be taken into consideration. For
example there might be turbulence above the roofs and other constructions, and this
can cause fraction or scattering of the beam or snow accumulation on roofs too
close to the beam can influence or even interrupt communication.
Solid mount surface - is the key for long-term operation. Since the diameter of
the beam is limited, it is extremely important to mount the unit on a stable structure
with the possible smallest movement. This way the receiver of the remote unit
cannot get out of the beam due to the movement of the opposite head.
East-West orientation - although the receiver optics are equipped with optical
filters to protect the receiver diode from the effect of undesired light sources, direct
sunshine can cause saturation of the diode. This prevents the system from working
properly for several minutes a day at certain times of the year. In most cases this
effect can be avoided by careful selection of the mounting spot.
In order to comply with the requirements of the successful installation - including the
discussed four key factors and other criteria - the following matters should be taken
into consideration.
3.2 Preferred installation sites
All buildings and constructions have a certain movement of their own. It’s
determined by the structure and material of the building. Metal structures can shift or
twist due to temperature changes. Wooden construction can expand or shrink with
any changes in humidity. Give preference to concrete or brick buildings. On the
other hand high structures like towers, skyscrapers or poles are always subject to
movement. Mount the support frame to walls of the building or near corners, as they
are the most stable spots. Use appropriate consoles for wall mounting. If a stand is
used on the top of
building, secure it directly to the ceiling or to the concrete cornice wherever is
possible. Do not fix stands to insulating materials as they can slowly sink under the
weight of the unit and with temperature changes. Big chimneys and smokestacks
may look stable, but as their inner temperature varies they can also move. Vibration
caused by heavy traffic, trains and elevators etc. may slowly move the system out of

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its specified direction. Another important consideration is to provide enough space
for alignment and to have the potential for future maintenance. Consider that the
support frame is usually heavy, so the selected spot should be easily accessible.
Preferred installation
sites
Pay attention to
Avoid (*)
Concrete wall
Behind window
Soft materials
Brick wall
Old constructs
Chimneys
Microwave towers
Wooden constructs
Metal masts or Frames
Hidden heat isolations,
like Styrofoam
(*)
In cases where installations are listed under “AVOID” cannot be avoided than special mounting
accessories to be designed and special installations must be used.
It is not only the building that has to be solid, but the support structure too. Antenna
poles and security camera holders are not suitable for the GeoDesy FSO units.