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IUH-F117-V1-*
Product Description
4.1.9
Countries of Use
The IUH-F117-V1-* read/write head has transmission license in accordance with
DIN EN 302208-2.
Note!
If you wish to use a device in a country in which this standard is not effective,
make sure beforehand that the following values for the device are consistent with
the local conditions:
■
■
■
A list of countries of use can be found in "ERC Recommendation ERC/REC70-
03". These are available on the "European Communications Office ERO" website
under www.ero.dk as recommendation. The currently applicable countries of use
are listed in this document under Appendix 11.
4.1.10
Dense Reader Mode DRM
A special operating mode for read/write tags in accordance with the UHF Gen 2
specification allows several read/write heads to be operated next to each other
without interference.
Europe
In line with EPC Global and ETSI EN 302208, only channels 4, 7, 10 and 13 are
used in this mode for transmission for the IUH-F117-V1-EU read/write head
(read/write head -> read/write tag communication path). The transmission power
is max. 2 W
W
erp
2.0
0.5
0.1
865.0
Figure 4.1
The read/write head can therefore only use preset channels. The response from
the read/write tag appears via the frequency offset, which is achieved by the
modulation used in this mode on the two adjacent channels. The IUH-F117-V1-
EU read/write head transmits on the four transmission channels 4, 7, 10 and 13,
provided that these channels have been preset. Due to the high level difference
between the transmission channels and the response channels, this technology
offers major benefits for reusing frequencies. This requires minimum distances
and therefore a minimum coupling between the antennas of adjacent read/write
heads to be maintained.
14
Frequency band
Power level
The described modulation and operating modes must be permitted
.
erp
1
2
3
4
5
865.6
6
7
8
9
10
11
866.2
866.8
12
13
14
15
Channel
867.4
868.0
MHz
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