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IUH-F192-V1-*
Installation
3.3.1
Room Orientation
The alignment of the read/write tag antennae in relation to the antennae of the read/write head
influences the detection range of the system. Make sure the antennae are aligned parallel to
each other.
Read/write head
1
Tag
2
3.3.2
Minimum Distances
When positioning the read/write head, please observe the minimum distances. The lateral
distance between the read/write head and metals or liquids should be at least 50 cm. The
distance between the read/write head and the ground should be at least 50 cm.
During simultaneous operation of several read/write heads, only one read/write head may ever
communicate with a tag at any given time. When arranging the read/write heads, make sure
that the measurement ranges do not overlap. You can enlarge or reduce the size of the
measurement range by changing the transmitting power. Determine the measurement range of
each read/write head at the mounting location.
Note!
During mounting, take into account how the read/write heads may cause interference with each
other. The further the transmission channels of the read/write heads are from each other, the
lower the risk of interference.
If you want to transmit with just one read/write head at any given time, use the multiplex mode
of the IDENTControl control interface. Multiplex operating mode allows chronologically
exclusive access to tags, and prevents mutual interference from read/write heads. For a precise
description, see the manual for your control interface.
3.3.3
Polarization
The polarization of the electromagnetic wave emitted by an antenna depends on the
electromagnetic field component and the position of the antenna. Polarization can be either
linear or circular. To achieve the maximum detection range for a UHF system, the polarization
of the read/write head must match the polarization of the tag. Refer to the relevant data sheet to
find the polarization of the tag.
10
Optimum alignment of the tag
Good communication between the read/write head
and tag
Poor alignment of the tag
Insufficient communication between the read/write
head and tag
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