LaserBit PICO Plus Series User manual

PICO Plus
Users’ Manual 1.0

LaserBit PicoPlus Series 1.0 page
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Table of contents
1Introduction ___________________________________________________________3
1.1 What is FSO?______________________________________________________3
1.2 Optical Free-space Transmission______________________________________5
1.3 Typical applications ________________________________________________6
1.4 About Laserbit_____________________________________________________7
2LaserBit PICO PLUS series_______________________________________________7
3Interfaces for PICO PLUS________________________________________________ 9
3.1 100Mbps TP interface_______________________________________________ 9
3.2 DirectE1 interface _________________________________________________10
4Product matrixes_______________________________________________________11
4.1 Interface matrix___________________________________________________11
4.2 Power supply configuration _________________________________________11
5Content of the package__________________________________________________12
5.1 Contents of a Laserbit PICO PLUS___________________________________ 12
6Sites of installation_____________________________________________________13
6.1 Key factors of operation ____________________________________________ 13
6.2 Preferred installation sites __________________________________________ 13
6.3 Distance measurement _____________________________________________15
6.4 Direct sunshine ___________________________________________________ 15
7Eye safety ____________________________________________________________ 15
8The mounting bracket __________________________________________________17
8.1 Mounting Bracket for Picos _________________________________________ 17
9System installation _____________________________________________________18
9.1 On the table test___________________________________________________18
9.1.1 Fixing the heads________________________________________________ 19
9.1.2 Alignment of the heads __________________________________________ 20
9.1.3 Connecting to your Network______________________________________ 22
9.1.4 How can you install the ODIU? (only in case of E1) ___________________ 24
9.1.5 Connecting to the management (only in case of E1)____________________ 27
Warranty conditions________________________________________________________28
10 Appendix A _________________________________________________________ 30
a. Product registration form_____________________________________________ 30
b. Failure report form__________________________________________________ 31
10.1 PICO PLUS Data Sheet ____________________________________________ 32

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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.
Laserbit offers FSO systems with the highest power budget available on the
market.
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
sensitive to sense delight emitted from the remote side.
Laserbit 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.

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To meet the demands for every higher bandwidth, Laserbit Communications
continues to invest heavily in research and development with the newest product line
which offers Gigabit speeds being launched.
This manual describes the Laserbit LB series of free space laser transmission
system.
The Laserbit LB 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 Laserbit FSO devices provides
transparent and wire-speed data transfer with virtually zero latency. Because they
use infrared light as the transmission medium, Laserbit system do not require
frequency licenses and the transmission is not effected by electro-magnetic or radio-
frequency interference. Basically the Laserbit 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 Laserbit LB systems comprise two laser-heads and the two indoor
interconnection units (OIU) - 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
Laserbit.

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1.2 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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1.3 Typical applications
Most typically the Laserbit-Pico Plus 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 employment of the Laserbit is
the most adequate and 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 Laserbit
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.
Cor
p
orate
LAN ISP

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1.4 About Laserbit
Laserbit Communications Corporation was established in 1999, building on
ten years of research and development activities in the field of telecommunications.
The British-American-Hungarian joint venture was founded by two innovators Mr.
Bela Gyoeri and Mr. Janos Pallagi.
The profile of the firm is solely the
development of wireless
transmitting with laser beams.
They generated a whole R&D,
product, quality, and sales’
infrastructure, which gives that the
Laserbit can be named as a
very stable company of the
telecommunication market of the
world today.
After a few years the Laserbit Com. Co. became a worldwide company and now
it has numerous partners like USA, Canada, Germany, United Kingdom, Ireland,
Greece, Portugal, Switzerland, Spain, the Benelux-States, Turkish, Poland, Austria,
Brazil, Russia, and Singapore. In the other hand the expansion of markets and
partners in the Laserbit is keep going today which are helped with trainings, meetings
and other programs and a fine support community.
The purpose is to manufacture cost-effective and best quality products which are
simultaneously suitable for telecommunication standards and customers’ demands.
Together with Laserbit wants to earn bigger breakthroughs in the field of laser
communication with it can take a hand in the advance of the modern World.
2 LaserBit PICO PLUS series
The PICO PLUS series
products from Laserbit set a
new standard for Free Space
Optical transmission systems.
They provide simple and easy to
installation solution that is unique
in laser based networking. This
new range of products
incorporates a lightweight,
compact mechanical design with a factory-set optical system, which allows end-users
to benefit from simple and quick installation. The PICO PLUS is more competitively
priced than 2.4 GHz radio solutions and the bandwidth provided can be about ten
times higher.
Laserbit PICO PLUS range offers cost effective, reliable and secure laser based
free space optical transmission for local area networks (LAN) at full duplex Fast
Ethernet wire speed, or direct E1 connection with a standard G703 balanced or

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unbalanced (coaxial or utp) connection interface. The transmission carries data using
a concentrated laser beam and a unique modulation technique is employed to ensure
error free data transfer over distances of up to 200 meter. Transparent and wire
speed data transfer together with virtually zero latency ensures that the PICO
PLUS system can be easily integrated into any environment. The PICO PLUS
series use laser light as a transmission medium. As with all Laserbit systems this
means that frequency licenses are not required and transmission is not affected by
electro-magnetic interference. The data transmission via a laser beam is secure as it
is
extremely hard to intercept, and cannot be detected by spectrum analysers. In the
case of a PICO PLUS system the laser link is considered a “virtual” fibre in the air.
The Laserbit PICO PLUS system comprises of two Laser Heads, two Outdoor
Interconnection Units (OIU) and two sets of interconnection cables — one at each
end. The Laser Heads are installed outdoors, usually on rooftops or sidewalls of
buildings, where a clear optical path exists between the two sites. Next to the head
the Outdoor Interconnection Unit provides fast and easy interconnection between the
laser head and the cable coming from the network equipment. Moreover the OIU
houses the Power Supply Unit (PSU) of the system and the network interface. The
PSU provides the low voltage power required to operate the laser. Each PICO
PLUS head contains built-in transmission monitoring service, which features a visual
signal strength indicator and LINK status information accessible on the rear side of
the head assembly through a window. In addition PICO PLUS units are equipped
with optical aid to target the remote head easily. All that makes the installation real
fast and easy even for people who have never dealt with FSO equipment before
By utilizing IEEE, and ITU standard compliant interfaces Laserbit system protects
the customers’ investments in long-term projects. Provides fast and easy connection
for Fast-Ethernet, or PDH computer or telephone networks. Similar to the highly
successful PICO II., PICO PLUS has the ability to be upgraded with LaserBit
ease to use web based monitoring software, which is even more user friendly then
the previous LaserBit BitView hardver and software package.

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3 Interfaces for PICO PLUS
3.1 100Mbps TP interface
The Laserbit Pico Plus PoE series products are designed to provide easy-to-
use and cost-effective solution for interconnecting Local Area Networks. By utilizing
standard Category 5 cable and using standard IEEE802.3af interface the deployment
of the system is easier than ever. The transparent and wire speed data transfer
together with virtually zero latency assures the easy integration of the system in all
environments.
The Pico Plus PoE 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.
The Pico Plus PoE system layout
The Pico Plus PoE systems connecting to the network with an 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 1M product, this way 100% eye safe.

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3.2 DirectE1 interface
The E1 systems cover the low speed telephony requirements such as connecting
Telephone exchanges, up to 30 individual lines. As a part of the system you will
receive E1 multiplexers. These multiplexers provide fast and easy connection to the
laser device. The TC link speed is 2.048Mbps.
E1 Interface systems layout
The PicoPlus E1 requires one cable for power similar to the Pico Plus PoE. This
unit contains a power supply which provides the power for the laserhead. For detailed
connection please see the chapters below.

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4 Product matrixes
4.1 Interface matrix
In the spreadsheet below you can see the interface availability.
E1 E100TP
PicoPlus ;;
4.2 Power supply configuration
E1
PicoPlus ;

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5 Content of the package
Laserbit provides three product range with three different kinds
of package contents. The Laserbit Compact(comprising Pico,
Pinto and Pronto links) has all the necessary nuts, bolts wall plugs
and for the easy installation of the link. Also you can find in the
package the power supply units. These units also have all the
necessary gadgets for the fastening. Laserbit does not provide power cable for the
connection of the main and the outdoor box.
For the detailed information please see the chapters below:
5.1 Contents of a Laserbit PICO PLUS
For the Pico Plus systems Laserbit provides all the necessary accessories to fix
the head to the bracket, fix the Power supply unit and the bracket to the wall, below
you can see what is provided in the Pico Plus package. (ODIUs and ODIU
accessories only in case of E1 systems)
• 2ps of LB PICO Plus heads
• 2ps of LB ODIUs (Outdoor Interconnection Unit) /the two grey plastic boxes/
• ODIU accessories:
o 2ps of 276x110x1,5 metal plates
o 2x4ps of 6x40 spacers
o 2x4ps of 6x15 spacers
o 2x4ps of M6x70 flat sphere headed screws
o 2x4ps of M5 nuts
o 2x4ps of spring washers
o 2x4ps of washers
o 2x4ps of ø8x48 wall plugs
o 2x4ps of M4,5x70 cross headed self-
tapping-screws
• 2ps of mounting brackets for PICO Plus heads /a camera consol like grey,
metal appliances/
• a manual CD
• bracket accessories bag contents see
below:
o 2x3ps of M6x90 self-tapping-b
2x3ps olts o of ø10x80 wall plugs s (for
o
ng washers
o 2x2ps of M6x90 tangent bolt
vertical fine alignment)
2x3ps of M6x25 bolts
o 2x3ps of M6 nuts
o 2x6ps of 6mm spri
o 2x6ps of 6mm washers

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6 Sites of installation
6.1 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.
6.2 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
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.

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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 Laserbit units.

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6.3 Distance measurement
Because the units were designed, and calibrated for certain distance operations the
higher distance will decrease the availability. Laserbit pre-calibrates and pre-tests
every unit shipped to the customer. To ensure that the unit you are about to buy fits
to the needs, the first step is to
measure the distance. The best
way to measure it is by GPS
(Global Positioning
System), these units
are accurate enough to
determine the distance
between two points.
For more details please
refer to the GPS
manufacturer
handbook. Also there are several
other ways to measure the
distance. If you know the exact
address you can use mapping software like MapPoint or Auto route.
6.4 Direct sunshine
To prevent the sun shining directly
into the receiver optics, first one
has to determine the orientation of
the link. Try to avoid East-West
orientation wherever it is possible.
Examine both sides of the link at
sunset and sunrise and find a
position where the sun cannot get
behind any of the heads. Be aware
that the path of the sun is changing
throughout the year.
7 Eye safety
There are no two installation spots of the same kind, the buildings or structures, the
available space and the accessibility of the place will be different in each case.
Nevertheless, as a general rule it is very important to select the installation site so
that nobody can look directly into the transmitter. For this reason place the head
either so high (on the side wall of the building) or so close to the edge of the building
(on a parapet on the rooftop) that no person can approach it accidentally and can get
into the beam path. Set up barriers if necessary and put warning signs at prominent
places.
The laser heads are provided with all labels and hazard warnings required by the
laser standard. There are warning labels on both the left and right side of the
protective cover next to the optical window and there is a warning and an informative
label on the rear side of the laser head.

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INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
CLASS 1M LASER PRODUCT
NAME : Outdoor Interconnection Unit
Type : LB-ODU-230 PINTO
S/N : LBP-6300984
Primary side : 230VAC 50Hz 0.2A
Secondary side : ±8,5VDC ±1,25A ; +29VDC +40mA
Protection : IP65
Safetyclass : Class II.
EN 60950-1:2001 (electrical safety),
EN55022:1998+Corr:2001+A1:2000 and EN55024:1998
Dismounting the cover can cause fatal injury!
Manufactured by :LaserBit Communications Corp., 1037 Budapest, Kunigunda u 45,
HUNGARY, Tel.: [phone], Fax: [phone]
www.laserbit.net
Type : LB-PP-0200-E100TP
S/N : LBH-«s/n»
Input Power : -48VDC IEEE 802.3af compilant
Laser : 1M
Wavelength : 785nm
Manufactured by: LaserBit Communications Corp., 1037Budapest,
Kunigunda u 45, HUNGARY, Tel.:[phone] Fax.:[phone]
www.laserbit.net

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8 The mounting bracket
In the following chapter you will find detailed description of the bracket fastenings.
8.1 Mounting Bracket for Picos
Laserbit provides the mounting bracket and all the necessary components for
Pico II units. A simple fixing technique of this bracket can be seen on the following
figure, required tools are as follows:
- drilling machine
- 10 mm wrench
Bracket sizes:
Length: 329mm
Leg Width: 209mm
Head Width: 100mm
Drill size: 10mm wall drilling
Installation steps:
• Place the bracket on the wall
• Mark the wall with a permanent marker
• Use your 10mm wall drill to drill all of the holes into the wall
• Clean the holes
• Place the wall-plugs into the holes (please note that some times you need to
use hammer to put the wall-plugs into the hole, if you have to please be
careful not to break the wall-plug)
• Place the bracket to the wall an line it up to the holes
• Put the screws into the wall-plug through the hole on the leg of the bracket
(please see the figure above)
• Tighten up the screws
Packet list for the bracket:
3pcs 8x110 screw for bracket fixing
3pcs 8x100 plastic wall-plug for bracket fixing
2pcs M6x90 bolt Head fixing
3pcs M6x25 screw Head fixing
3pcs M6 bolt head fixing
6pcs 6mm spacer bracket and head fixing
6pcs 6mm spring spacer bracket and
head fixing

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9 System installation
9.1 On the table test
Warning! Do not look either into the transmitter or the receiver optics because at
this distance even the reflected laser beam can be dangerous to your eyes.
Operating the system on much shorter distance than presumed originally can cause
saturation or even permanent damage to the receiver. Always use optical
attenuators for this kind of test.
The on-the-table test needs careful planning and careful use during the test period.
The units should be placed at about 2 m distance from each other with optical
windows facing one another. Put an appropriate optical attenuator (Attenuating foil
or cardboard with several small holes) between the heads. Make all the necessary
connection as described below to connect your network equipment (computer or
protocol analyzer) to the heads and power up the units. Turn ON the Outdoor
Interconnection Units and check if the power LED is ON on the head.
You should be able to align the units without any tool and get full received level on
the signal strength LED’s. Make sure that the “Saturation” indicator is OFF. Adjust
your attenuators if necessary to avoid saturation of the receivers.
Please note that at this short distance, specially the longer distance links can reflect
to the remote site or even to the same head. If you experience full receiving level,
with no traffic throughput, in that case try to move the heads slightly units out of the
reflection zone.
Please also take in consideration that the laser beam is concentrated and in such a
short distance can harm your eyes, every time you test the units on short distance,
do it with extra care. Never look into the sighting device if the remote laser is turned
on. We strongly suggest to double check the power connection before you turn on
the device. Handle the power connection with extra care. Safety first.
After obtaining the desired received level, check the data connection between
devices. Using computers or appropriate testing devices.
On the table tests are perfect for troubleshooting (If there is a transmission problem,
check the status of the connecting devices (e.g. Link signal or cable polarity) and
cables.) in a controlled area. If you experience some problems during the test,
please try to test the connected equipments with a direct connection.

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9.1.1 Fixing the heads
Your PICO PLUS head can be fixed to
its stand with the three M6x25 bolts.
On the figure you can see a plinth of a
PICO PLUS unit, a head of a PICO
PLUS mounting bracket, and the
necessary fixing parts. The steps of the
fixing are:
• First place the head to the stand
• Place the bolts into the holes which
is easily accessible for the
installation and the two cuts
• Place up the washers and spring
washers
• Fix the bolts with the nuts
After you put up the washers and the nuts, do not screw the nuts up tight because of
the comfortable positioning (see the chapter of Alignment).
After the fixing, place the two M6x90 tangent bolts into the two of the four holes on
the corners of the plinth. The important is that the bolts have to be in opposite
corners. You can do the vertical fine alignment with these bolts.

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9.1.2 Alignment of the heads
• Target Side B with the crosshair
built in to the head on Side A
• Repeat the first step with Side B!
• Power up the heads!
• Screw the three nuts up tight on
both heads, which were used for
the head fastening, but be
careful that the heads do not
move out from its position!
• Screw the two nuts up tight on
both heads, which are used for
the fixing the vertical direction,
but be careful that the heads do
not move out from its position!
Meanings of the LEDs
Power:
The head is powered up. FO Link:
Fibre optical link between
the two heads.
TP Link:
Copper link between
the head and the Network
equipment.
RX OK:
There is enough light to
start communicate through
the link.
Level 1:
25% of the total (acceptable by the receiver) incoming power
Level 2:
50% of the total (acceptable by the receiver) incoming power
Level 3:
75% of the total (acceptable by the receiver) incoming power
Saturation:
Overload (Overloading can cause stop in the communication, and permanently it can
damage the receiver)