teko ASTRA ZITADEL, Quick Start Manual

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
Do not place wireless components directly on massive metal structures (metal building
framework, ventilation ducts, shelves, etc.), as this will decrease the effectiveness of
antennas because metal structures release and distort the antenna pattern.

Do not place wireless devices inside metal structures (in cabinets, in rooms with fine
metal mesh in the wall finishing, etc.). Use remote antennas, if needed.

Do not place power supply wires of the central Control Panel and routers in cable
channels together with high-power cables of 220-380 V power grids.

Do not place wireless devices close to (min 1 m away of) sources of radio interference
(medical devices that use electromagnetic field during operation, video signal
processing devices and computer hardware, antennas and radio frequency tracts of
communication devices, including radio message transmitting systems, etc.).

Place wireless devices (except the control panel, keypad, FCP, wireless relay unit and
WLD) as high as possible, no lower than 2 m away of the floor; as a rule, at this height
there are the fewest obstacles in rooms, and this height also ensures normal
functioning conditions for IR, AC, MC, and SD, HD type of detectors according to the
physical principles of detection.

Place wireless devices no closer than 10 cm away of the surface of walls and ceilings
that contain closely spaced metal reinforcement (reinforced concrete) or fine mesh
reinforcement (less than 4 cm) under plaster surfaces.

During placement, ensure the least possible deviation from direct view and obstruction
by foreign objects between directly communicating wireless devices.

In premises with high human occupancy, place wireless devices so as to ensure backup
data transfer routes, as people moving throughout the space can weaken wireless
signals.
General recommendations: for every 2-3 adjacent rooms on a single floor with a
total of 4-5 detectors per room, install one router. This will automatically ensure
good conditions for achieving a communication quality level of at least 4 and the
possibility of backup routes.
8.5. ABOUT 433 MH
Z
WIRELESS COMPONENTS ON-SITE PLACEMENT