Planning The Installation - Assa Abloy Aperio AH15 Mechanical Installation Instructions

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3 Planning the Installation

It is very important to find the best possible
placement of the communication hub, in
order to get at stable and reliable radio link.
Depending on the floor plan of the installation
site, type of communication hubs used, use of
external antenna and presence of disturbances
will all affect the positioning of communication
hubs. Follow these guidelines to find the best
installation placement, also see following sections
for installation examples.
Placement options for communication
hub
General installation guidelines:
Try to install so that locks and communication
∙
hub "see" each other with the LED on the
communication hub "pointing" towards the lock.
If this is not possible, find a placement so that
∙
there are no concrete and metal objects in
between the lock and the communication hub.
Avoid installing the communication hub in a low
∙
position, where radio waves can be blocked by
objects or people passing by during operation.
When the internal antenna is used, the radio
∙
coverage backwards is limited to 0.5 m/3 ft
for AH15 and 3 m/10 ft for AH20/30/40. The
coverage also depends on the type of wall it is
installed on.
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Aperio Online Mechanical Installation Guide, Document No: ST-001323-B Date: 21 februari 2014
∙ When the external antenna is used, the radio
coverage will be focused perpendicular to the
direction of the antenna and in some directions
the range may decrease. However the maximum
range will not increase. See section "Radio
coverage for external antenna" on page 18 for
details.
∙ The lock and the communication hub should
be placed on the same side of the door. Shorter
distance and "light" materials in the walls also
permits placement on opposite sides.
Be aware of that nearby metallic sheet or mesh
∙
will attenuate the radio signal. Inner ceiling,
for example, is sometimes covered with foil or
metallic mesh.
Mirrors, heat insulating windows and larger
∙
metallic objects (like cable ladders) have a
significant effect on radio signals and should
not be closer than 20 cm (8 inches) from lock or
Communication Hub.
∙ In difficult environments (for example where
heavy radio interference is expected), or
when the requirements on the radio link
quality are very high, it is recommended to
keep the distance between the lock and the
communication hub well below the maximum
recommended distance. There is no minimum
distance.
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