MPE Report

FCC ID: OXW-PA0002

RF Exposure Info

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FCCID_1773171

PCTEST ENGINEERING LABORATORY, INC. 6660-B Dobbin Road, Columbia, MD 21045 USA Tel. 410.290.6652 / Fax 410.290.6554 http://www.pctestlab.com RF EXPOSURE EVALUATION (MAXIMUM PERMISSIBLE EXPOSURE) Applicant Name: Date of Testing: Device Solutions Inc. 07/27/2012 3211 Moorefields Road Test Site/Location: Hillsborough, NC 27278 PCTEST Lab, Columbia, MD, USA USA Test Report Serial No.: 0Y1207190978.OXW FCC ID: OXW-PA0002 APPLICANT: Device Solutions Inc. EUT Type: Sensor Board Module FCC Rule Part(s): FCC Part 1 (§1.1310) and Part 2 (§2.1091) FCC Classification: FCC Part 15 Spread Spectrum Transceiver (DSS) Test Procedure: OET Bulletin 65 The device bearing the FCC Identifier specified above has been shown to comply with the applicable technical standards as indicated in the measurement report and has been tested in accordance with the measurement procedures specified in FCC OET Bulletin 65 (See Test Report). These measurements were performed with no deviation from the standards. Test results reported herein relate only to the item(s) tested. I authorize and attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. PCTEST certifies that no party to this application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 1 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09

T A B L E O F C O N T E N T S 1.0 RF EXPOSURE EVALUATION – MAXIMUM PERMISSIBLE EXPOSURE (MPE).........................3 1.1 INTRODUCTION ................................................................................................................................... 3 1.2 EUT DESCRIPTION .............................................................................................................................. 3 1.3 MPE REQUIREMENTS OVERVIEW..................................................................................................... 4 1.4 PROCEDURE........................................................................................................................................ 5 1.5 SUMMARY OF RESULTS..................................................................................................................... 6 2.0 CONCLUSION..................................................................................................................................7 Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 2 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09

1.0 RF EXPOSURE EVALUATION – MAXIMUM PERMISSIBLE EXPOSURE (MPE) 1.1 Introduction This document is prepared on behalf of Device Solutions Inc. to show compliance with the RF Exposure requirements as required in §1.1310 of the FCC Rules and Regulations and RSS-102 of Industry Canada. The limit for Maximum Permissible Exposure (MPE), specified in FCC §1.1310, is listed in Table 1-1. According to FCC §1.1310 and RSS-102: the criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in §1.1307(b). Frequency Electric Field Magnetic Field Power Density Average Time Range (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (Minutes) (A) Limits For Occupational / Control Exposures (f = frequency) 30-300 61.4 0.163 1.0 6 300-1500 … … f/300 6 1500-100,000 … … 5.0 6 (B) Limits For General Population / Uncontrolled Exposure (f = frequency) 30-300 27.5 0.073 0.2 30 300-1500 … … f/1500 30 1500-100,000 … … 1.0 30 Table 1-1. Limits for Maximum Permissible Exposure (MPE) 1.2 EUT Description The Device Solutions Sensor Board Module FCC ID: OXW-PA0002 unit is a frequency hopping device that operates in the 900MHz ISM Band. Operation of this module is also possible while in close proximity to a FCC certified Telit Cellular/PCS band module (FCC ID: RI7DE910-DUAL). The device is set to transmit from the internal antenna of the Sensor Board Module and the RF exposure is evaluated. Since the Sensor Board Module is in close proximity to the Telit Cellular/PCS band module, co- location concerns are also addressed. EUT: Model: PA0002 Grantee: Device Solutions Inc. FCC ID: OXW-PA0002 Internal Antenna Gain: -1dBi Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 3 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09

1.3 MPE Requirements Overview Three different categories of transmitters are defined by the FCC in OET Bulletin 65. These categories are fixed installation, mobile, and portable and are defined as follows: o Fixed Installations: fixed location means that the device, including its antenna, is physically secured at a permanent location and is not able to be easily moved to another location. Additionally, distance to humans from the antenna is maintained to at least 2 meters. o Mobile Devices: a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to be generally used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter's radiating structures and the body of the user or nearby persons. Transmitters designed to be used by consumers or workers that can be easily re-located, such as a wireless modem operating in a laptop computer, are considered mobile devices if they meet the 20 centimeter separation requirement. The FCC rules for evaluating mobile devices for RF compliance are found in 47 CFR §2.1091. o Portable Devices: a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable device requirements are found in Section 2.1093 of the FCC's Rules (47 CFR§2.1093). The FCC also categorizes the use of the device as based upon the user’s awareness and ability to exercise control over his or her exposure. The two categories defined are Occupational/ Controlled Exposure and General Population/Uncontrolled Exposure. These two categories are defined as follows: o Occupational/Controlled Exposure: In general, occupational/controlled exposure limits are applicable to situations in which persons are exposed as a consequence of their employment, who have been made fully aware of the potential for exposure and can exercise control over their exposure. This exposure category is also applicable when the exposure is of a transient nature due to incidental passage through a location where the exposure levels may be higher than the general population/uncontrolled limits, but the exposed person is fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. Awareness of the potential for RF exposure in a workplace or similar environment can be provided through specific training as part of a RF safety program. If appropriate, warning signs and labels can also be used to establish such awareness by providing prominent information on the risk of potential exposure and instructions on methods to minimize such exposure risks. o General Population/Uncontrolled Exposure: The general population / uncontrolled exposure limits are applicable to situations in which the general public may be exposed or in which persons who are exposed as a consequence of their employment may not be made fully aware of the potential for exposure or cannot exercise control over their exposure. Members of the general public would come under this category when exposure is not employment-related; for example, in the case of a wireless transmitter that exposes persons in its vicinity. Warning labels placed on low-power consumer devices such as cellular telephones are not considered sufficient to allow the device to be considered under the occupational/controlled category, and the general population/uncontrolled exposure limits apply to these devices. The Device Solutions Sensor Board Module FCC ID: OXW-PA0002 is evaluated to the Mobile Device requirements and is considered a device to be used by the General Population/Uncontrolled Exposure. Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 4 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09

1.4 Procedure The procedure used to determine the RF power density was based upon a calculation for determining compliance with the MPE requirements. The power generated by the transmitter used in this product was initially measured by a spectrum analyzer and the powers were recorded. Through use of the Friis transmission formula and knowledge of the peak antenna gain to be used, the power density level is calculated at a distance of 20cm. Friis Transmission Formula Friis transmission formula: Pd = (Pout*G) / (4πr2) Where, Pd = Power Density (mW/cm2) π = 3.1416 Pout = output power to antenna (mW) r = distance between observation point and center of the radiator (cm) G = gain of antenna in linear scale Calculated MPE The power density limit for General Population/Uncontrolled Exposure at each frequency is determined based on the information in Table 1-1. The antenna gains shown below for the Telit module are the antenna gains shown in the FCC grant for the module under FCC ID: RI7DE910-DUAL. Frequency 924.8 MHz Limit 0.617 mW/cm^2 Distance (cm), R = 20 cm Power (dBm), P = 5.43 dBm 3.49 mW TX Ant Gain (dBi), G = -1 dBi Power Density (S) = 0.0006 mW/cm^2 (at 20cm) Minimum Distance = 0.6 cm Table 1-2. Calculated MPE Data for 900MHz ISM Band Frequency: 824.7 MHz Limit: 0.550 mW/cm^2 Distance (cm), R = 20 cm Power (dBm), P = 24.74 dBm 297.85 mW TX Ant Gain (dBi), G = 5.12 dBi Power Density (S) = 0.1926 mW/cm^2 (at 20cm) Minimum Distance = 11.8 cm Table 1-3. Calculated MPE Data for Telit Module (Cellular Band) Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 5 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09

Frequency 1851.25 MHz Limit 1.000 mW/cm^2 Distance (cm), R = 20 cm Power (dBm), P = 24.37 dBm 273.53 mW TX Ant Gain (dB), G = 6.12 dBi Power Density (S) = 0.2227 mW/cm^2 (at 20cm) Minimum Distance = 9.4 cm Table 1-4. Calculated MPE Data for Telit Module (PCS Band) Percent Power Density Limit MPE Used (mW/cm^2) (mW/cm2) (%) Transmitter #1 0.0006 0.617 0.09 Transmitter #2 0.1926 0.550 35.04 Transmitter #3 0.2227 1.000 22.27 Total 57.40 Table 1-5. Calculated MPE for Co-location 1.5 Summary of Results Maximum MPE @ Frequency Band Test Antenna Gain 20cm [MHz] Result [dBi] (mW/cm2) 904.8 – 924.8 -1 0.0006 PASS 824.7 – 848.31 5.12 0.1926 PASS 1851.25 – 1908.75 6.12 0.2227 PASS Table 1-6. Maximum Permissible Exposure Summary Table Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 6 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09

2.0 CONCLUSION The device meets the mobile RF exposure limit at a 20cm separation distance as specified in §2.1091 of the FCC Rules and Regulations and Health Canada Safety Code 6. An appropriate RF exposure compliance statement will be placed in the user’s manual. Reviewed by: FCC ID: OXW-PA0002 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DATA REPORT Quality Manager Test Report S/N: Test Dates: EUT Type: Page 7 of 7 0Y1207190978.OXW 07/27/2012 Sensor Board Module © 2012 PCTEST Engineering Laboratory, Inc. REV 3.1MPE 02/09/09


Document Created: 2019-09-24 05:35:16
Document Modified: 2019-09-24 05:35:16
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