Black Box LWU200-E-US, Руководство пользователя

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Black Box LWU Users’ Manual 2.0 page
Black Box
13
4 Content of the package
For the
Black Box LWU
systems
Black Box
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
Black Box LWU
package.
•
2ps of
Black Box LWU
heads
•
2ps of
Black Box LWU ODIU
s (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
Black Box LWU
heads /a camera consol like
grey, metal appliances/
•
a manual CD
•
bracket accessories bag contents see
below:
o
2x3ps of M6x90 self-tapping-bolts
o
2x3ps of ø10x80 wall plugs
o
2x2ps of M6x90 tangent bolts (for
vertical fine alignment)
o
2x3ps of M6x25 bolts
o
2x3ps of M6 nuts
o
2x6ps of 6mm spring washers
o
2x6ps of 6mm washers
5 Sites of installation
5.1 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