User guide

Release9.5ReleaseNotes
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Issue2,October2009  Page66
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表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/T11363-2006
标准规定的限量要求。
10.3 RFEXPOSURESEPARATIONDISTANCES
To protect from overexposure to RF energy, install Canopy radios so as to provide and maintain
the minimum separation distances from all persons shown in Table 15.
Table 15: Exposure separation distances
Module Type Separation Distance from Persons
Canopy Module (FSK or OFDM) At least 20 cm (approx 8 in)
Canopy Module with Reflector Dish At least 1.5 m (approx 60 in or 5 ft)
Canopy Module with LENS At least 0.5 m (approx 20 in)
Antenna of connectorized or integrated 900 MHz
module
At least 80 cm (32 in)
Indoor 900 MHz SM At least 10 cm (4 in)
The following section and its Table 16 provide details and discussion of the associated
calculations.
10.3.1 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://www.fcc.gov
, and the policies, guidelines, and requirements in Part 1 of
Title 47 of the Code of Federal 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://www.hc-sc.gc.ca/rpb
and Safety Code 6.
 ICNIRP (International Commission on Non-Ionizing Radiation Protection)
guidelines for the general public. See the ICNIRP web site at
http://www.icnirp.de/
and Guidelines for Limiting Exposure to Time-Varying
Electric, Magnetic, and Electromagnetic Fields.
The applicable power density exposure limits from the documents referenced above are
 6 W/m
2
for RF energy in the 900-MHz frequency band in the US and
Canada.
 10 W/m
2
for RF energy in the 2.4-, 5.2-, 5.4-, and 5.7-GHz frequency bands.
Peak power density in the far field of a radio frequency point source is calculated as follows: