User's Manual
User Manual
Version 1.1
2011-10-21
Radio modules deRFarm7
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
01237 Dresden / Germany
Tel.: +49 351 – 31 85 00
Fax: +49 351 – 3 18 50 10
wireless@dresden-elektronik.de
www.dresden-elektronik.de
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Modifications not expressly approved by this company could void the user's authority to
operate this equipment (FCC section 15.21).
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasona-
ble protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may cause harmful inter-
ference to radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the interference
at his own expense (FCC section 15.105).
11.2. European Union (ETSI)
The deRFarm7-15A02, deRFarm7-25A00, and deRFarm7-25A02 modules have been tested
compliant for use in European Union countries.
If the deRFarm7-15A02, deRFarm7-25A00 and deRFarm7-25A02 modules are incorporated
into a product, the manufacturer must ensure compliance of the final product to the European
harmonized EMC and low-voltage/safety standards. A Declaration of Conformity must be is-
sued for each of these standards and kept on file as described in Annex II of the R&TTE Di-
rective.
The manufacturer must maintain a copy of the deRFarm7-15A02, deRFarm7-25A00 and
deRFarm7-25A02 modules documentation and ensure the final product does not exceed the
specified power ratings, antenna specifications, and/or installation requirements as specified
in the user manual. If any of these specifications are exceeded in the final product, a submis-
sion must be made to a notified body for compliance testing to all required standards.
The “CE“ marking must be affixed to a visible location on the OEM product. The CE mark
shall consist of the initials "CE" taking the following form:
• If the CE marking is reduced or enlarged, the proportions given in the above graduat-
ed drawing must be respected.
• The CE marking must have a height of at least 5mm except where this is not possible
on account of the nature of the apparatus
• The CE marking must be affixed visibly, legibly, and indelibly.
More detailed information about CE marking requirements you can find at "DIRECTIVE
1999/5/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL" on 9 March 1999
at section 12.
11.3. Approved antennas
The deRFarm7-25A00 has an integrated chip antenna. The design is fully compliant with all
regulations.
The deRFarm7-15A02 has been tested and approved for use with the antenna listed below.
The module may be integrated with other custom design antennas which OEM installer must
authorize with respective regulatory agencies. The used antenna was connected to the radio
module with a 15cm “U.FL-to-SMA pigtail”.