SFA2019DIR011 Director RF Exposure Info RF exposure evaluation Smart Forced Air, .

Smart Forced Air, . Director

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID: 2ASCS-SFA2019DIR011
FCC RF Exposure Evaluation
1. Product Information
FCC ID
2ASCS-SFA2019DIR011
Product name
Director
Model number
Director
Test Model
Director
Power supply
Input: AC 24V 40VA
For Switch Adapter:
Input: AC 120V~, 60Hz, 0.43A
Output: AC 24V 40VA
Bluetooth Operation frequency
2405MHz-2480MHz
Modulation Type
OQPSK
Channel Spacing
5MHz
Antenna Type
Ceramic antenna
Antenna Gain
0.5dBi (maximum)
Hardware version
Rev A
Software version
V1.00
Exposure category
General population/uncontrolled environment
EUT Type
Production Unit
Device Type
Portable Device
2. Evaluation method and Limit
According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test
exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures,
standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions,
by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion
Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based
time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for
tune-up tolerance, and the minimum test separation distance required for the exposure conditions. The
minimum test separation distance is determined by the smallest distance from the antenna and radiating
structures or outer surface of the device, according to the host form factor, exposure conditions and
platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1).
To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified
by the operating configurations and exposure conditions of the transmitter and applicable host platform
requirements, typically in the SAR measurement or SAR analysis report, according to the required published
RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of
justification and compliance must be included in the equipment approval, in lieu of the SAR report, to
qualify for the SAR test exclusion. When required, the device specific conditions described in the other
published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion
provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“
[(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)]
≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where:
• f (GHz) is the RF channel transmit frequency in GHz
• Power and distance are rounded to the nearest mW and mm before calculation
• The result is rounded to one decimal place for comparison
________________________________________________________________________
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This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
Page 1 of 3
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID: 2ASCS-SFA2019DIR011
• 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below
The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for
transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5
mm, a distance of 5 mm according to f) in section 4.1 is applied to determine SAR test exclusion.
When one of the following test exclusion conditions is satisfied for all combinations of simultaneous
transmission configurations, further equipment approval is not required to incorporate transmitter
modules in host devices that operate in the mixed mobile and portable host platform exposure conditions.
The grantee is responsible for documenting this according to Class I permissive change requirements.
Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to
determine simultaneous transmission test exclusion.
The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted
for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0.
The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in
portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0.
3. Refer Evaluation Method
ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency
Electromagnetic Fields, 3 kHz to 300 GHz.
FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF
Exposure Procedures and Equipment Authorization Policies.
FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits.
FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices
4. Conducted Power Results
Mode
OQPSK –
ZigBee
Channel
Frequency (MHz)
Peak Conducted Output Power (dBm)
2405
-6.576
2440
-6.618
15
2480
-7.320
5. Manufacturing Tolerance
OQPSK –ZigBee (Peak)
Channel
Channel 0
Channel 7
Channel 15
Target (dBm)
-6.0
-6.0
-7.0
Tolerance ±(dB)
1.0
1.0
1.0
________________________________________________________________________
___
This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
Page 2 of 3
SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD.
FCC ID: 2ASCS-SFA2019DIR011
6. Evaluation Results
6.1. Standalone Evaluation
Band/Mode
f (GHz)
Antenna Distance
(mm)
ZigBee
2.405
ZigBee
ZigBee
RF output power
dBm
mW
SAR Test Exclusion
Threshold
SAR Test
Exclusion
-5.0000
0.3162
0.1 < 3.0
Yes
2.440
-5.0000
0.3162
0.1 < 3.0
Yes
2.480
-6.0000
0.2512
0.1 < 3.0
Yes
Remark:
1. Output power including tune up tolerance;
2. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to f) in section 4.1 is
applied to determine SAR test exclusion.
6.2. Simultaneous Transmission for SAR Exclusion
The sample support one ZigBee modular and one antenna, no need consider simultaneous transmission;
7. Conclusion
The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and
SAR Exclusion Threshold per KDB 447498 v06.
.......................THE END OF REPORT.........................
________________________________________________________________________
___
This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.
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Document ID4185520
Application IDhCJtM2/0SgA08ilN0LqPpQ==
Document DescriptionRF exposure evaluation
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
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Date Submitted2019-02-28 00:00:00
Date Available2019-02-28 00:00:00
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Producing SoftwareAdobe PDF Library 11.0
Document Lastmod2019-02-28 10:43:21
Document TitleRF exposure evaluation
Document CreatorAcrobat PDFMaker 11 for Word
Document Author: tclsevers

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