Black Box Networks PICO systems
Pico Manual v5.1
.
User's Manual
V5.1
Black Box Networks PICO systems
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Pico Manual v5.1
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Safety of the Black Box product
The Black Box is classified as Class 3B laser product.
The Black Box System has been tested and found to comply with the EN 60825-1:1994 +A11:96
(laser safety), EN 60950-1:92+A1:93+A2:93+A3:95+A4:97 (electrical safety), EN 55022:1998 Class
3B (emission) and EN 55024:1998 and EN 50082-2:1995 (immunity) European standards.
The laser radiation is emitted from the transmitter optics through the glass window in the front
side of the laser head under less than 10 mrad divergences. Depending on the model, one, two or
four of such transmitters may be present inside one head assembly. The optical axles of the
transmitters are parallel to each other, each of them emitting laser radiation towards the same
direction – onward through the optical window of the head. No other aperture through which laser
radiation can occur present in the laser head.
Warning!
Invisible laser radiation! Looking directly into the laser beam can cause permanent
damage to the eye! Safe looking distance varies with beam power and divergence.
See attached data sheet for exact figures.
The Black Box product should be installed in such a way that nobody can access the optical window
or can get in the way of the laser beam accidentally. For detailed instructions please read Eye Safety
part of chapter 4.5 of the manual (Site Survey).
The Black Box product provided with all the necessary labels specified by the standards. Moreover
informative labels should be put on clearly visible places where the laser beam can be accessed. The
locations of the warning labels are shown in Chapter 4.5/Eye Safety.
The Indoor Interconnection Unit is assembled with a certified power cord, which must be
connected to the mains through a power outlet to make the disconnection possible at any time.
Any modification to the above installation is prohibited. If modifications are required by the local
standard, please contact the manufacturer.
To ensure the compliance with the EN 60950 safety requirements, only the manufacturer or its
certified partners should install the system.
Warning
Operating the Black Box product other than described in this manual can cause undesired laser
radiation and can be dangerous to he eye or electrical shock!
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Elektrische Sicherheit des Black Box Produkts
D
Das Black Box ist eine Klasse 3B Lasereinrichtung.
Das Black Box Produkt wurde geprüft und entspricht den Anforderungen der Europäischen Standards
EN60825-1:1994 + A11:96 (Lasereinrichtungen), EN60950-1:92+A1:93+A3:95+A4:97 (Elektrische
Sicherheit), EN55022:1998 Klasse 3B (EMV, Störaussendung) und EN55024:1998 sowie EN50082-
2:1995 (EMV, Störfestigkeit)
Der Laserstrahl wird von der Sendeoptik durch die Glasscheibe an der Frontseite des Laserkopf mit
einer Divergenz von weniger als 10mrad abgestahlt. Abhängig vom Modell des Laserkopf können sich
ein, zwei oder vier solcher Sender innerhalb des Laserkopf befinden. Die optischen Achsen der
einzelnen Sender verlaufen parallel zueinander wobei jeder Sender in die gleiche Richtung stahlt - in
Richtung der Optik des Laserkopf. Es sind keine weiteren Blenden vorhanden durch die Laserstrahlen
auftreten können.
Warnung!
Unsichtbare Laserstrahlen! Nicht direkt in den Lasertrahl schauen, da dies die
Augen permanent schädigen kann. Der Sicherheitsabstand variiert mit der
Laserleistung und Divergenz des Laserstrahl. Details hierzu sind im Datenblatt
nachzulesen.
Das Black Box Produkt muß so installiert werden, daß niemand Zutritt zu der Optik des Laserkopf hat
oder zufällig in den Bereich des Laserstrahl kommen kann. Kapitel 4.5 auf des Handbuchs enthält
ausführliche Anweisungen zum Schutz der Augen.
Das Black Box Produkt ist mit allen notwendigen Warnhinweisen versehen die durch die Standards
vorgebenen werden. Weitergehende Hinweise sollten an gut sichtbaren Stellen angebracht werden wo
man sich dem Laserkopf gefahrlos nähern kann. Die Positionen der Warnhinweise sind auf Kapitel
4.5, Schutz der Augen
Die „Indoor Interconnection Unit“, die mit einem zertifzierten Netzkabel ausgeliefert wird, muß mit
der Stromversorgung verbunden werden, indem der Netzstecker in eine geeignete Netzsteckdose
gesteckt wird, womit die Lasereinrichtung auch jederzeit wieder vom Netz getrennt werden kann.
Jegliche Modifikationen an der Installation sind verboten.
Falls aufgrund nationaler Vorschriften denoch Änderungen an der Installation vorgenommen werden
müssen, ist vorher der Hersteller zu befragen.
Um die Konformität bezüglich der Elektrischen Sicherheit nach EN60950 sicherzustellen, sollte das
System nur vom Hersteller oder seinen zertifizierten Partnern installiert werden.
Warnung !
Die Inbetriebnahme oder der Betrieb des Black Box Produkts, abweichend von den Vorgaben
dieses Handbuchs, kann unerwünschte Laserstrahlung verursachen und gefährlich für die
Augen werden oder einen elektrischen Schock verursachen.
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Sécurité de produit Black Box
F
Le produit Black Box est classifié dans la catégorie laser 3B.
Le système de Black Box a été testé et correspond aux normes européennes: EN 60825-
1:1994+A11:96 (sécurité du laser), EN 60950-1:92 + A1:93 + A2:93 + A3:95 + A4:97 (sécurité
éléctrique), EN 55022:1998 Classe 3B (émission), EN 55024:1998 et EN 50082-2:1995 (immunité).
La radiation laser est émise à partir de l’émetteur optique à travers une fenêtre en verre placée à la
tête du laser et a une divergence de moins de 10 mrad. Selon le type de modèle, le nombre
d’émetteur placé dans la tête du laser varie entre 1, 2 ou 4. L’axe optique des émetteurs sont
parallèles et chacun d’entre eux émettent la radiation laser dans la même direction, à travers la
fenêtre de la tête du laser. Aucune autre ouverture dans la tête ne peut laisser passer de radiation
laser.
Attention!
La radiation laser est invisible! Interdiction de regarder le rayon laser ! Risques graves de
lésions pour les yeux! La distance de sécurité pour la vue est variable et dépend de la puissance
du rayon et de sa divergence! Consulter la feuille de données ci-jointe pour calculs exacts.
L’installation de produit Black Box doit être faite de sorte que personne ne puisse accéder à la fenêtre
optique ou traverser le rayon laser par accident. Pour instructions détaillées, lire la partie Sécurité de
l’œil dans le chapitre 4.5 du manuel (Site Survey) à la page 17.
Le produit Black Box possède la totalité des étiquettes stipulées par les normes. De plus, des avis
informatifs sont placés à des endroits clairement visibles où le rayon laser pourrait être accessible. Une
liste des endroits où sont placés les avis informatifs est donnée dans le chapitre 4.5 du manuel (Eye
Safety) à la page 17.
Le boîtier de connections intérieure (Indoor Interconnection Unit) est fournit avec un fil éléctrique
certifié par lequel l’appareil est connecté à la prise de courant. Grâce à cela, il est possible de
débrancher à n’importe quel moment. Il est formellement interdit d’apporter de quelconques
modifications à cette installation. Si une modification est cependant nécessaire à cause des normes
locales, contacter le fabricant.
Attention!
Tout opération consistant à utiliser le produit Black Box de façon différente que celle indiquée
dans le manuel pourrait engendrer des effets indésirables du rayon laser, être dangereuse pour
la vue et provoquer un choc éléctrique!
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Sicurezza dei prodotti Black Box
I
Black Box e classificáto di essere un Classe 3B prodotto di lazer.
Il sistema Black Box e stato collaudato e trovato conforme con EN 60825-1:1994 +A11:96 (sicurezza
sul prodotti lazer), EN 60950-1:92+A1:93+A2:93+A3:95+A4:97 (sicurezza eletrica), EN 55022:1998
Class B (emissione) ed EN 55024:1998 ed EN 50082-2:1995 (immunitá), Norme Europee.
La radiazione lazer viene emissa dalla ottica del trasmettitore via la finestra di vetro posizionata
sulla fronte della testa di lazer con una divergenza minore di 10 mrad. Secondo il modello si
trovano uno, due o quatro transmettitori in una testa di lazer. Gli assi ottici dei trasmettitori sono
paralelli uno con l’altro, tutti quanti emmittono il raggio di lazer nella stessa direzione via la
finestra ottica della testa lazer. Non esiste nessun’ altra appertura attraverso quale radiazione di
lazer puó presentarsi.
Avvertimento!
Radiazione lazer invisibile! Guardando direttamente nel raggio di lazer puó causare
danni permanenti degli ochhi! La distanza di sicurezza dello sguardo varia secondo
la potenza e la divergenza dello raggio di lazer. Distanza di sucurezza viene
communicato sulla pagina tehnica allegata.
Prodotti Black Box devono essere installati in tale maniera, che nessuno possa accedere la finestra
ottica o esporsi al raggio di lazer per caso. Per informazioni piu detagliati vedi la parte Sicurezza
Ochhi del capitolo 4.5 nel manuale sulla pagina 17.
I prodotti Black Box veranno forniti con tutte segnalazioni previste nelle norme. In addizione
segnalazioni informative devono essere posizionate nel posti ben’ visibili dove il raggio di lazer puó
essere accesso. Le locazioni delle segnalazioni di sicurezze sono demostrati sulla pagina 17 del
manuale (Capitolo 4.5/ Sicurezza Ochhi)
La Unitá Interconnezione Interna viene fornita con un cavo di allimentazione certificato quale
deve essere collegato con la rete di potenza tramitte una presa per assicurare la separabilita in
qualsiasi momento. Qualunque modifica sul questo impianto e proibito. Se modifiche si devono
eseguire per rispettare la norma locale, si priega di contattare il produttore.
Per garantire la conformitá con la norma EN 60950, il sistame deve essere installato dal
produttore o dai partner certificati.
Attenzione!
Qualsiasi operazione di Black Box diversa di quello descritto in questo manuale puó causare non
desiderata radiazione lazer e puó essere pericoloso per gli ochhi o causare scossa electrica!
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!
Safety
3B Class Laser device
This unit complies with the relevant safety regulations. If you have questions please
contact Black Box Co. tech support.
• Fragile handle with care.
• Ensure that the local main voltage is within the range of 100VAC to 240VAC
• Ensure that no liquids are dropped inside the unit.
• In the case of emergency (e.g.: damaged casing, elements or cables) disconnect the
unit immediately.
• Only qualified technicians should repair the device. Unauthorized opening will
result in warranty being void.
This manual will show you how to install and use the Black Box PICO systems
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1 Characteristics:
Model Number
Interfaces
Pico Ethernet
Ethernet, Fast-Ethernet
Distance in meter
75
150
Electrical & Optical Characteristics
XMT Power mW (max)
Transmitter
Wave Length (nm)
Dynamic range
65 mW
Laser Diode
780 to 980
>25dB
Power
Power to Head
110/220 VAC, 50W max.
Environments
Operating
Temperature
-25 – 60 Centigrade (normal version)
-40 – 85 Centigrade (extended version)
-40 – 80 Centigrade (normal version)
-55 – 105 Centigrade (extended version)
Up to 95% non condensed
Storage Temperature
Humidity
Physical Characteristic
Housing
Metal
Protective Shield
Weight (kg)
Hardened Aluminium, with white reflective paint and Stainless steel Base
2,5 Kgs
Dimension (mm)
160X110X350
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1.1 Features
• The newly developed „Pico” used for transmit 100 Mb/s data up to 150 meters.
• Easy to install, and easy to use.
1.2 Accessories
• 2 Pico Units
• 2 Mounting Brackets
• 2 Outdoor Interconnection Unit
The Black Box-Pico product range offers cost effective, reliable free space laser
transmission for 100Mbps Ethernet data through free space.
The transmission technique used in the Black Box devices provides transparent wire
speed data transfer with virtually zero latency, because it uses infrared light as a
transmission medium, Black Box systems do not require frequency licenses and the
transmission is not affected by electro-magnetic interference or radio frequency
interference. The Black Box Pico link can be considered as a virtual fiber in the air, with
standard Cat 5 connection at each end.
Each product is built using highest quality electronic components for operation in even the
most adverse conditions. Metal housing gives a robust, waterproof environment for the
electronics, with IP65 isolation rating. The shield protects the device from direct sunlight
and provides extra air isolation.
Invisible laser radiation, Class 3B laser product. Looking directly into the laser
beam can cause permanent damage to the eye!
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2 Optical free space transmission
The principle used in free space laser transmission is very similar to the one is used for
fiber optic transmission. The difference is while fiber optic devices use electronics and
optics optimised for optical fiber, free space communication equipment deploys
electronics and optics optimised for transmission through the air. Also you can observe
the similarity in the transmission properties. No galvanic contact, no ground loops, no
need for surge protection, noise immunity, high bandwidth.
What makes it unique – and difficult to design – is that it does not require any
transmission medium like fiber or copper, but has to cope with the dynamically changing
parameters. For instance while the attenuation of an optical fiber is constant, the
attenuation of the atmosphere between the laser units can change dramatically
(depending on the weather conditions).
The Black Box heads are usually placed on top of buildings, where clear line of sight is
guaranteed and the beam cannot be interrupted.
In the head the incoming signal is amplified, encoded, then drives the laser diode. The
transmitter optics assures the proper beam shape. The receiver optics perceives and directs
the transmitted signal to the photodiode. The diode converts it back into electrical, then 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, transmitters 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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Most typically the Black Box-Pico is used to interconnect LAN-s, or computers. 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 Black Box is the
most adequate and cost effective solution. Those are:
2.1 Areas with natural or artificial obstacles
Where cable is actually not an alternative, like across rivers or railways or in rugged
terrain.
2.2 Urban areas
Where only leased lines are available with limited speed and high rental cost. With
Black Box links you can establish on line LAN-to-LAN connections.
2.3 Industrial areas
Where you have noisy environment with high EMI or RFI. Factory buildings,
airport objects can be connected through laser link.
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2.4 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
ISP
LAN
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3 Installation procedures
3.1 System set-up overview
Pico Manual v5.1
The set up of a Black Box link needs careful planning, thorough site preparation, and
accurate installation. We have listed the work that is essential for a successful system
set up.
1. Site survey
2. System design
3. Site preparation
4. System installation
5. Alignment procedure
6. System test
We deem necessary to emphasize the importance of site survey. It is fundamental to
make sure if the laser link is a viable solution at all. Most customers usually are not
experts in this field, so they cannot realize the sources of possible difficulties. It is also
very important to clarify the position, size and outlook of the support frame with the
customer in advance.
3.2 Key factors of operation
There are four key issues that the site survey. The proper system operation cannot be
guaranteed without satisfying all the four requirements.
a. Clear line of sight - first of all 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 the communication.
b. 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.
d. East-West orientation - although the receiver optics is equipped with optical
filters to protect the receiver diode from the effect of undesired light sources, the
direct sunshine can cause saturation of the diode. This prevents the system from
working properly for several minutes a day in a certain time of the year. There are
some methods to reduce the effect of the sun, but the best way is to avoid the East-
West orientation wherever it is possible.
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4 Site survey
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.
4.1 Link path
If the clear line of sight is available, further examination of the sites and optical path is
necessary after possible sources of temporary or periodic malfunction. No chimneys,
steam or other smoke sources may be present under or near to the beam path. They can
weaken the strength of the signal or can cause wandering of the beam. Heater vents and
air conditioners have similar effect as they can cause air turbulence. Scintillation from
rooftops or glass surfaces due to direct sunshine also may interrupt the beam. The
closer the source to the transmitter the greater it’s effect. Because both sides have
transmitter and receiver, the source of such symptoms in the middle has the less effect
on the overall system. If there are trees near the transmission path, consideration of
growth and the wind blown leaves into the into the transmission path is necessary.
Areas under construction can have moving obstacles like construction cranes that can
disturb the communication.
4.2 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 the changing of
humidity. Give preference to concrete or brick buildings. On the other hand high
structures like towers, skyscrapers or poles always subject to great movement. Mount
the support frame to basic holders 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 a 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, 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.
It is not only the building that has to be solid, but the support structure too. Antenna
poles, security camera holders are not suitable for the Black Box units. A catalogue of
more than 80 mounting frames can be ordered from the manufacturer (both available in
printed and CD ROM format. Please contact with Black Box Co. tech support for
details.
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Preferred installation sites
Concrete wall
Brick wall
Pay attention to
Behind window
Old constructs
Avoid (*)
Soft materials
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.
4.3 Distance determination
Try to get as accurate information about the connection distance as you can in order to
get the maximum performance out of the system. The easiest way is to obtain a
proportional map and calculate the distance. In some cases the distance between sites
can be measured directly with distance recorders. There are infrared and laser distance
meters that can display the distance between the viewer and the defined point.
4.4 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 shine directly into the receiver. Be aware that the path of the sun is changing
throughout the year
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4.5 Eye safety
No two installations sites are the same. 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
applicable standards. 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. The locations of those signs are shown in the
following pictures.
INVISIBLE LASER RADIATION
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
Output Power Max 50 mW, 785 nm
Pulse Duration : Not Pulsed
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5 Installation procedure
For installation purposes the PICO units are factory Pre-Set for 150 meters. If the Pico
link distance is less than 50 meters, the beam should be adjusted, with the special tool(see
below)
5.1 Installation of the link
For proper installation follow The Steps Listed Below.
1. Direct head “A” to side “B” using the embedded pointing device.(See Diagram
1.1) Align Cross-Hair at unit “B”
Diagram 5.1
2. Direct head “B” to side “A” using the embedded pointing device.(See Diagram
3.1) Align Cross-Hairs at unit “B”.
3. fix the pico head on side “A” and
on side “B” with the screws to the
mounting frame and with the
screws on the side of the
unit(make sure that the unit is not
moved during the tighten
process). The screws should be
sufficiently tight to hold the unit
for long time.
4. Power Pico units at both ends.
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Horizontal Fine
Alignment screws
5. Fine Adjustment is required after the
unit has been aligned with the
internal pointing device. Fine
alignment is applicable for vertical
and horizontal orientations. These
movements must be done using the
fine alignment screws Adjust first
the horizontal then the vertical screw
as shown in the photographs on this page.
Adjust these screws while watching the
rear panel LED lights(see diagram:3.2).
Illuminate as many green LED power
indication lights as possible during the
fine alignment process, and follow your
multimeter display, to find the maximum
of the detector voltage.
DON’T TRY TO DO MOVE
TWO HEADS AT THE SAME
TIME! The result won’t be the
same
6. During this period described in the fifth step, try to avoid the saturation LED. /Red
light/ (See Diagram 5.2)
Diagram 5.2
LED Meanings:
Power:
The head is powered up.
FO Link:
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Fiber optical link between the two heads.
TP Link
Copper side 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)
7. If the installation distance is shorter
than 50 meters in that case
realignment is required which can be
done with the device on the picture.
7.1 release the screws
7.2 Pull the regulation nut perfectly to
the front and fix it with the screws!
Please note that this operation should
be done extra carefully because it can
move the transmitter out of the alignment. It must be totally on the front!
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The required installation tools:
screwdriver
10 mm wrench 2 pcs
13 mm wrench for fixing the bracket
Punch-down tool for the TP cord
Please note:
Fixing of unit to a rigid surface is very important for long-term alignment.
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5.2 The Outdoor interconnection unit
The outdoor interconnection unit (OIU) provides the power supply for the head. This unit
provides +8VDC, GND, -8VDC and the 30VDC for the head. Ensure that the cables are
connected as it seen below. The OIU also has a TP connection module that provides an
easy-to-use connection between the head and the local network.
Fuses
Power to the head
Switching
Key
TP Connection
Module
230 VAC
5.2.1 Power Connection to the OIU
This is the primary side
of the OIU and these 3
connectors are used to
provide the 230 VAC to
the unit.
Please be very careful
while connecting the 230
VAC cable! Be sure that
the cable is not under
power when you connect
it!
P
G
N
5.2.2 Power to the Head
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This is where the necessary +8 VDC,
Ground, -8 VDC and 30 VDC is
connected to the head. Use the power
cables embedded into the head and
connect them to the 4 pin connector.
The colour codes:
Brown-white
Orange-white
Green-white
Blue-white
+30 VDC
+8 VDC
Ground
-8 VDC
Warning! The wrong polarity of the cables can damage the head!
5.2.3 The UTP Connecting Unit
This unit is used to connect the data cable coming from the head to the data cables coming
from the local network. You must use straight connection on your local network side. Use
the connectors to connect the proper cable. Colour codes can be seen in the figure below:
Cables from LAN
Green
Orange
Orange- white
Green-white
Cable from
the head
AGC
You can measure AGC detector voltage on pin 1 and 4 of the RJ11 connector. This
connector is used for meuserment and installation purpose only.
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5.3 Mounting bracket fixing:
Fix the mounting bracket with the provided screws. This must be very tight to hold the
bracket, if the provided screw is fixed successfully, in that case the console should hold at
around 100 kgs. Optionally extended bracket can be ordered with the pico systems which
are longer and stronger than the standard one. For further information please ask your
local distributor!
5.4 On-the-table test
All Pico units were preset and pretested before shipping!
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 is easy to do. The units should be placed at about 2 m distance from
each other with optical windows facing one another. Put an appropriate optical attenuator
between the heads. Make all the necessary connection as described earlier to connect your
device 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. After obtaining the desired
received level, check the data connection between devices. If there is a transmission
problem check the status of the connecting devices (e.g. link ON) and cables. If there’s no
LINK signal, connect the network equipments back-to-back omitting the Black Box
system to ensure that they work properly. Should they operate well, get in contact with
your supplier or call the technical support (a Problem Report Form can be found at the end
of this book).
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6 Warranty conditions
Black Box Corp. warrants that the Black Box product purchased will free from defects in
material and workmanship for a period of one (1) year from the date of purchase. This
warranty period will not be extended by virtue of a repair of the product or a replacement
of any component of the product during the warranty period.
This warranty covers only normal commercial use. Black Box Corp. is not responsible for
warranty service should the Black Box identification marks, serial numbers or original
seals be removed, altered, or broken, or should the product fail to be properly maintained
or fail to function properly as a result of any modification, misuse, abuse, improper
installation, neglect, improper shipping, damage caused by disasters such as fire, flood,
earthquake or lightning, improper electrical current, or service other than by Black Box
Corp. or its authorised partners.
If the Black Box product fails to operate as warranted at any time during the warranty
period, Black Box Corp. will repair, or at its option, replace the defective product at no
additional charge.
In no event will Black Box Corp. be liable for any damages including loss of data,
lost profits, lost savings, lost business, or other incidental or consequential or indirect
damages arising out of the installation, use, maintenance, performance, failure or
interruption of the Black Box product, even if Black Box Corp. has been advised of
the possibility of such damage.
If you purchased the Black Box product in the United States, some states do not allow the
limitation or exclusion of liability for incidental or consequential damages, so the above
limitation may not apply to you.
The purchaser or user shall have the responsibility to give Black Box Corp. prompt
written notice of any warranty claims. If the product was purchased through an authorised
partner of Black Box Corp., notice may be given in writing to that authorised partner in
the area in which the product was being used.
The product may be returned to Black Box Corp. only if it has a Return Material
Authorisation (RMA) number. The product must be shipped prepaid, insured and in the
original shipping package or similar package for safe shipment. The RMA number must
be marked on the outside of the shipping package. Any product returned without an RMA
number shall be rejected.
Transportation charges for the return of the product will be paid by Black Box Corp. if it
is determined by Black Box Corp. that the product was defective within the terms of the
warranty; otherwise the purchaser or user shall be responsible for costs of return handling
and transportation.
If the Black Box product does not operate as warranted above, the customer’s sole
remedy shall be repair or replacement. The foregoing warranties and remedies are
exclusive and are in lieu of all other warranties, expressed or implied, either in fact
or by operation of law, statutory or otherwise, including warranties of
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merchantability and fitness for a particular purpose. Black Box Communication
Corp. neither assumes nor authorises any other person to assume for it any other
liability in connection with the sale, installation, use or maintenance of the product.
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5. Schematic for connecting LAN’s
Lan 1
Server
TP Cable
IR Transmission
Distance max 150 m
TP Cable
Server
Lan 2
Schematic for Home Networking
Side “A”
Side “B”
Computer 2
Computer 1
IR Transmission
Distance max 150 m
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7 Twisted pair cabling
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