Agfa NV 5243 Cirrus RFID reader User Manual
Agfa Gevaert N V Cirrus RFID reader Users Manual
Agfa NV >
manual revised
Confidential Page 1 of 3 06/07/2011
F:\agbmi05\Personal\PCBs\HE\Cirrus\CirrusRFIDreaderFCC\CirrusRFIDreaderRegulatoryInetgrationInstr
uctions.doc
a
aa
a
b
bb
b
Medical Imaging
RDE
From:
Jan Vercammen (6233) – MI/TSP-HW/Electronics
Date: July 6, 2011
Concerning: Regulatory and hardware instructions for integration of Cirrus
RFID reader into host applications (concerns FCC ID: HPL5243)
This document describes the regulatory elements and measures for the integration of
a full modular short-range RFID reader into host applications. The internal company
reference of the RFID reader (or reader for short) is A800626.
The reader is a small printed circuit board with local shielding, local power supply regulation and
filtering, here is a short summary of the measures taken to control (spurious) emissions:
• The reader transmitter (chip) has a local PCB shield
• The reader module power supply is 5V+/-10% and using a local low dropout regulator a
3.3V+/-2% is used on board for all electric circuits, there is also sufficient bulk and high-
frequency decoupling
• A common-mode (CM) choke is used on the 5V power supply as a means to limit
unwanted CM conducted- and radiated emissions
• The tuning circuit uses low tolerance components (1% or 2%) to limit circuit variations
The full-modular approval allows the integration of the reader into various applications
without the need for radio type testing of the application, however, the user needs to
take a number of measures and comply with regulatory requirements.
Confidential Page 2 of 3 06/07/2011
F:\agbmi05\Personal\PCBs\HE\Cirrus\CirrusRFIDreaderFCC\CirrusRFIDreaderRegulatoryInetgrationInstr
uctions.doc
a
aa
a
b
bb
b
Medical Imaging
RDE
FCC Regulatory requirements
When integrating the reader (A800626) into an application the user should respect the
following regulatory requirements – taken from Code of Fedural Regulations April
28
th
, 2011, part 15 subpart C (intentional radiators) paragraph 15.212 (A):
If using a permanently affixed label, the modular transmitter must be labeled with its own FCC
identification number, and, if the FCC identification number is not visible when the module is installed
inside another device, then the outside of the device into which the module is installed must also display a
label referring to the enclosed module. This exterior label can use wording such as the following:
“Contains Transmitter Module FCC ID: XYZMODEL1” or “Contains FCC ID: XYZMODEL1.” Any similar
wording that expresses the same meaning may be used. The Grantee may either provide such a label, an
example of which must be included in the application for equipment authorization, or, must provide
adequate instructions along with the module which explain this requirement. In the latter case, a copy of
these instructions must be included in the application for equipment authorization.
As the reader has a permanent affixed label (with the text “FCC ID: HPL5243”) and,
because the module is not visible from the outside, an external label is required that
has the text “Contains Transmitter Module FCC ID: HPL5243” or “Contains FCC ID:
HPL5243.”
This text could be integrated into the identification plate of the host application.
Additional regulatory information
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1)
This device may not cause harmful interference, and
(2)
This device must accept any interference received, including interference that
may cause undesired operation.
Confidential Page 3 of 3 06/07/2011
F:\agbmi05\Personal\PCBs\HE\Cirrus\CirrusRFIDreaderFCC\CirrusRFIDreaderRegulatoryInetgrationInstr
uctions.doc
a
aa
a
b
bb
b
Medical Imaging
RDE
Additional restrictions are that:
1. the reader cannot be sold to external parties, that is, it is restricted to company-
internal products
2. the reader cannot be standalone, that is, a declaration of conformity (DoC) is not
possible – note that the reader as standalone unit cannot function (per definition)
Host application integration recommendations
The recommendations are based on laboratory measurements, electromagnetic solver
simulations and FCC radio type testing experience/measurements.
When integrating the reader (A800626) into an application the user should respect the
following instructions:
1. Metal parts (of the enclosure) and wiring (of the cable harness) should be kept at
a reasonable distance from the reader. As the reader distance (reader to tag) is
of the order of 25mm it is recommended to respect at least the double or triple of
this value (50 to 75mm or more).
2. Limit the integration of the reader cable into the wiring harness of the application
and if this is not possible then limit the coupling length to values below 50cm or
use dielectric spacers to have at least 5mm spacing between the reader cable
and other cables (= 3 times the reader cable wire pitch).
3. The reader cable length should be limited to 120cm.
4. If the reader is used for reading tags on X-ray cassettes then the plane of the tag
should be near the plane of the (copper or lead) foil used and both planes need
to be parallel. The center of tag and reader coils need to be aligned for proper
operation. Note that the foil does not necessarily decrease the coupling between
the reader and tag and does not changes the electromagnetic behavior of the
inductive field, the magnetic field distribution is only altered in space. This is
confirmed in measurements and simulations (using FastHenry, a magnetic field
solver) at the carrier frequency.
END of Document