Wlan (Wireless Local Area Network); Important Information On Wlan; Notes On Access Point - Bosch KTS 340 Betriebsanleitung

2.6

WLAN (Wireless Local Area Network)

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The WLAN function is to be activated at a later date.
2.6.1

Important information on WLAN

The Wireless Local Area Network (WLAN) provides a
radio link on the free 2.4 GHz ISM band (ISM: Industri-
al, Scientific, Medical). This frequency range is not sub-
ject to state legislation and can be used in most coun-
tries without a licence (for exceptions, refer to Section
2.5). Consequently a large number of applications and
devices employ this frequency band for transmission.
This can result in frequency interference.
Depending on ambient conditions, the WLAN link may
therefore deteriorate, e. g. in the case of Bluetooth
links, cordless telephones, radio-controlled thermom-
eters, radio-controlled garage door openers, radio-con-
trolled light switches or radio-controlled alarm systems.
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Bluetooth can cause bandwidth collapse in the
WLAN network. The antennas of Bluetooth and WLAN
devices should be at least 30 centimeters apart.
Bluetooth USB adapters and WLAN sticks are not to
be plugged into adjacent PC/Laptop USB slots. Use
the USB extension cable (special accessory) to main-
tain a distance between the Bluetooth USB adapter
and the WLAN stick at the PC/Laptop.
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Extreme caution is to be taken if wearing pace-
makers or other vital electronic devices when using
radio systems, as proper functioning of these items
could be impaired.
Pay attention to the following to ensure the best pos-
sible connection:
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The WLAN radio signal always tries to find the most
direct path. When setting up the PC/Laptop and ac-
cess point (refer to Section 2.6.2), make sure there
are as few obstacles as possible (e. g. steel doors and
concrete walls) which could interfere with the radio
signal from and to the KTS 340.
Inside buildings, the range of the WLAN is also greatly
influenced by the construction materials used. Conven-
tional masonry, wooden walls and certain types of dry
construction wall scarcely impede radio waves. Thin
gypsum walls can however cause problems, as con-
siderable amounts of moisture may accumulate in the
gypsum and result in the absorption of radio signals.
Concrete (and in particular reinforced concrete) largely
blocks out radio waves. Cellar ceilings are often impen-
etrable. 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
DECT telephones and microwave ovens.
Robert Bosch GmbH
User instructions | ��S ��� | 19
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Have your network infrastructure installed and
tested in advance by a data systems expert.
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Keep the SSID and the codes for the radio link in a
safe place. Make sure these data are readily to hand
in case faults occur.
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We recommend a thorough inspection of the premis-
es on commissioning: Establish where in the building
the KTS 340 works properly and where the operating
limits are.
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The radio link is affected by weather conditions. The
reception signal may therefore vary.
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Please contact your network administrator with any
queries.
2.6.2

Notes on access point

A wireless access point is an electronic device which
acts as an interface between a radio network and a
cable-connected computer network. It provides a wire-
less connection between the KTS 340, the PC/Laptop
and a printer for example.
Heed the following:
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The access point should be located as centrally and
high up as possible, ideally under the ceiling.
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The access point antenna should face downwards
towards the floor.
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In the event of a poor connection it may be useful to
change the channel set on the access point.
2.6.3 Notes on WLAN for FCC and Canada
2.6.� Notes on WLAN for USA and Canada
USA:
Changes or modifications not expressly approved by the party
USA:
responsible for compliance could void the user's authority to
Changes or modifications not expressly approved by
operate the equipment.
the party responsible for compliance could void the
This equipment complies with FCC RF radiation exposure limits set
user's authority to operate the equipment.
forth for an uncontrolled environement.
�anada:
FCC/Canada:
This device complies with Industry Canada licence-exempt
Operation is subject to the following two conditions:
R RSS standard(s). Operation is subject to the following two
this device may not cause interference, and
conditions: (1) this device may not cause interference, and (2)
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this device must accept any interference, including
this device must accept any interference, including interference
interference that may cause undesired operation of
that may cause undesired operation of the device.
the device.
Le présent appareil est conforme aux CNR d'Industrie Canada
applicables aux appareils radio exempts de licence.
L'utilisation de ce dispositif est autorisée seulement L'exploitation est autorisée aux deux conditions suivantes: (1)
l'appareil nedoit pas produire de brouillage, et (2) l'utilisateur
aux deux conditions suivantes :
R de l'appareil doit accepter tout brouillage radioélectrique subi,
il ne doit pas produire de brouillage, et
même si le brouillage est susceptible d'en compromettre le
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l'utilisateur du dispositif doit être prêt à accepter
fonctionnement.
tout brouillage radioélectrique reçu, même si ce
brouillage est susceptible de compromettre le foncti-
onnement du dispositif.
This Class [B] digital apparatus complies with Canadian
ICES-003.
Cet appareil numérique de la classe [B] est conforme à
la norme NMB-003 du Canada.
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1 689 989 038 2008-08-15