User`s manual

Page 18 of 35 A2500R24x – User’s Manual
Release Date 09/05/12
2.1.3. Europe (Conformité Européenne, )
The A2500R24A and A2500R24C modules have been certified for use in European countries.
The following tests have been performed and the module found to be compliant to the
requirements:
 Test standard ETSI EN 300 328 V1.7.1 (2006-10)
 Maximum Isotropic Radiated Power (Normal and Extreme Conditions)
 Maximum e.i.r.p. Spectral Density
 Frequency Range (Normal and Extreme Conditions)
 Transmitter Spurious Emissions
 Receiver Spurious Emissions
 Electro-Static Discharge and RF Immunity (ETSI EN 301 489-17)
 RF Exposure (ETSI EN 62311:2008)
 Safety (IEC 60950-1:2005 and EN 60950-1:2006)
A helpful document that can be used as a starting point in understanding the use of short range
devices (SRD) in Europe is the European Radio Communications Committee (ERC)
Recommendation 70-03 E, downloadable from the European Radio Communications Office
(ERO) http://www.ero.dk.
The end user is responsible for ensuring compliance with harmonized frequencies and labeling
requirements for each country the end device is marketed and sold.
For more information see:
 Radio And Telecommunications Terminal Equipment (R&TTE)
http://ec.europa.eu/enterprise/rtte/index_en.htm
 European Conference of Postal and Telecommunications Administrations (CEPT)
http://www.cept.org/
 European Telecommunications Standards Institute (ETSI) http://www.etsi.org/
 European Radio Communications Office (ERO) http://www.ero.dk/
2.2. Potential Interference Sources
The radio modules operate in the unlicensed ISM band, in which there are many other
applications e.g. WLAN, Bluetooth
®
and microwave ovens. This can cause interference that
may, in certain conditions, prohibit radio communication. The user is encouraged to implement a
number of channels and to alternate between those channels based on one of the below
methods.
 Sense if a particular channel is clear prior to transmitting (clear channel assessment)
 Pseudo Random channel change
 Select channels with the least interference (site survey)