User's Manual

PMP320HDW2v1 8-37
Preliminary
JUL
2010
,
Fields
PMP 320 Hardware Installation RF EXPOSURE SEPARATION DISTANCES
RF EXPOSURE SEPARATION DISTANCES
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T o protect from overexposure to RF energ y , an AP must be installed to provide a separation
distance
of at least 50 cm ( ~20 in) from all persons In addition, do not collocate within 20 cm
(4 in) of any other antenna or transmitter .
T o protect from overexposure to RF energ y , an SM must be installed to provide a separation
distance
of at least 50 cm ( ~20 in) from all persons and must not be collocated or operating
with any other antenna or transmitter .
The following section and table provide details and discussion on the separate distance
calculations.
To protect from overexposure to EU RF energy, An 3530SMC must be installed to provide a separation
distance of at least 82 cm from all persons and must be not collocated or operating with any other
antenna or transmitter.
To protect from overexposure to EU RF energy, An 3630SMC must be installed to provide a separation
distance of at least 120 cm from all persons and must be not collocated or operating with any other
antenna or transmitter.
Details of Exposure Separation Distances Calculations and
Power Compliance Margins
Limits and guidelines for RF exposure come from:
• US FCC limits for the general population. See the FCC web site at http://ww w .fcc.gov
the policies, guidelines, and requirements in P art 1 of Title 47 of the Code of F ederal
and
Regulations, as well as the guidelines and suggestions for evaluating compliance in FCC
OET
Bulletin 65.
• Health Canada limits for the general population. See the Health Canada web site at
http://ww w .hc - sc.gc.ca/rpb and Safety Code 6.
• ICNIRP (International Commission on Non - Ionizing R adiation Protection) guidelines for
the general public. See the ICNIRP web site at http://ww w .icnirp.de/ and Guidelines for
Limiting
Exposure to Time - V arying Electric, Magnetic, and Electromagnetic .
The applicable power density exposure limits from the documents referenced above is 10 W/m2.
P eak power density in the far field of a radio frequency point source is calculated as:
Figure 8-2 Peak power density calculation