Important Information On Wireless Local Area - Bosch JLR DOIP VCI Manual Original

en 6 | Jaguar Land Rover DoIP VCI | User Information
2.6 Important information on Wireless
Local Area Network (WLAN)
!
PC/laptop users are responsible for compliance
with the applicable directives and restrictions in the
country concerned.
WLAN is the term used to describe a wireless local net-
work. Both WLAN and Bluetooth provide a radio link on
the free 2.4 GHz ISM band (ISM: Industrial, Scientific,
Medical). This frequency range is subject to state legis-
lation, can however be used without a license in most
countries. Consequently a large number of applications
and devices employ this frequency band for transmissi-
on. This can result in frequency interference and faults.
Depending on ambient conditions, the WLAN link may
therefore deteriorate, e.g. in the case of Bluetooth links,
cordless telephones, radio-controlled thermometers,
radio-controlled garage door openers, radio-controlled
light switches or radio-controlled alarm systems.
i
Extreme caution is to be taken if wearing pacema-
kers or other vital electronic devices when using
wireless systems, as proper functioning of these
items could be impaired.
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Pay attention to the following to ensure the best possi-
ble connection:
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The WLAN signal always tries to find the most direct
path. When setting up the PC/laptop, make sure the-
re are as few obstacles as possible (e.g. steel doors
and concrete walls) which could interfere with the
signal from and to the PC/laptop.
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Inside buildings, the range of the WLAN is also grea-
tly influenced by the construction materials used.
Conventional masonry, wooden walls and various
types of dry construction wall scarcely impair the
propagation of radio waves. Thin gypsum walls are
however problematic, as considerable amounts of
moisture may accumulate in the gypsum and result
in the absorption of radio signals. Metal walls and
concrete (in particular reinforced concrete) large-
ly block out radio waves. Cellar ceilings are often
impenetrable. Generally speaking, walls with a lot
of installed metal (e.g. pipes, wires) obstruct radio
waves.
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Radio reception is also impeded by large metal
objects such as radiators and window frames as well
as active sources of interference such as radio tele-
phones, motion detectors and microwave ovens.
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Human beings are also an obstacle to wireless trans-
mission. It must therefore always be ensured that
no-one stands between the transmitter and receiver.
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When commissioning, we recommend that you tour
the site thoroughly: Determine where in your buil-
ding the PC/laptop functions and where the limits
for wireless transmission are located.
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If the JLR DOIP VCI is used inside a vehicle (Fara-
day cage), wireless communication may be severely
impeded.
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The wireless link is affected by weather conditions.
The reception signal may therefore vary.
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Please contact your network specialist for any que-
ries.
Robert Bosch GmbH