RF Exposure

FCC ID: I88P8802T

RF Exposure Info

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FCCID_1781923

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 1 of 8 Maximum Permissible Exposure (MPE) Evaluation Report Report No. : TS12070053-EME Model No. : DSL-2402HNU-B1B v2, P8802T, Basic Home Station VDSL2 P8802T Issued Date : Aug. 03, 2012 Applicant: ZyXEL Communications Corporation 6, Innovation Rd II, Science-Based Industrial Park, Hsin-Chu, Taiwan Test Method/ Standard: FCC 1.1310 Test By: Intertek Testing Services Taiwan Ltd. No. 11, Lane 275, Ko-Nan 1 Street, Chia-Tung Li, Shiang-Shan District, Hsinchu City, Taiwan It may be duplicated completely for legal use with the allowance of the applicant. It shall not be reproduced except in full, without the written approval of Intertek Laboratory. The test result(s) in this report only applies to the tested sample(s). 0597 The test report was prepared by: Sign on File Jill Chen / Assistant These measurements were taken by: Sign on File Terry Hsu / Engineer The test report was reviewed by: Name Jimmy Yang Title Engineer

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 2 of 8 Table of Contents Summary of Tests..............................................................................................................3 1. Introduction ...................................................................................................................4 2. RF Exposure Limit ........................................................................................................4 3. RF Exposure calculations..............................................................................................5 4. Description of EUT .......................................................................................................5 5. Test results.....................................................................................................................7 6. Set-up Photo ..................................................................................................................8

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 3 of 8 Summary of Tests MPE Evaluation meet FCC OET No. 65: 1997, IEEE C95.1-2005 Wireless N VDSL2 VoIP IAD With USB -Model: DSL-2402HNU-B1B v2 FCC ID: I88P8802T Test Reference Results MPE Evaluation FCC Guidelines for Human Exposure IEEE C95.1 Complies

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 4 of 8 1. Introduction The EUT operates in the 2.4 GHz ISM band. Due to the EUT (include antenna) at its normal operation distance is at least 20 cm from the human body, the EUT was defined as a Mobile Device. The reason to do the MPE Evaluation is to avoid the RF hazard to human body. The maximum output power and gain of the antenna were used to calculate the limited Power density (S) at 20 cm distance away from the product. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 and Safety Code 6 are followed. According to 1.1307 (b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. 2. RF Exposure Limit According to FCC 1.1310: 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). Limits for Maximum Permissible Exposure (MPE) Frequency Electric Field Magnetic Field Power Density Average Time Range Strength Strength (mW/cm2) (minutes) (MHz) (V/m) (A/m) (A) Limits for Occupational / Control Exposures 30-300 61.4 0.163 1.0 6 300-1500 - - F/300 6 1500-100,000 - - 5 6 (B) Limits for General Population / Uncontrolled Exposure 30-300 27.5 0.073 0.2 30 300-1500 - - F/1500 30 1500-100,000 - - 1.0 30 F= Frequency in MHz

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 5 of 8 3. RF Exposure calculations From §FCC 1.1310 table 1, the maximum permissible RF exposure for an uncontrolled environment is 1 mW/(cm2) (or 10 W/m2)* Power density (S) is calculated by the following formula: S = (P * G)/4πR2 where, S = Power density (mW/cm2) P = Output power to antenna (mW) R = Distance between radiating structure and observation point (cm) G = Gain of antenna in numeric π = 3.1416 Example: Assume a mobile device operates at 2412MHz and its maximum output power is 50mW, and the maximum gain of antenna is 1 (numeric) /0dBi. Then the power density (S) = (50 * 1)/4*π*202 = 0.00995 (mW/cm2) (or = 0.0995 W/m2) 4. Description of EUT The EUT is Wireless N VDSL2 VoIP IAD With USB, and was defined as information technology equipment. The customer confirmed the models listed below were identical to model DSL-2402HNU-B1B v2 (EUT). Different brands served as marketing strategy. Trade Name Model Number MitraStar DSL-2402HNU-B1B v2 ZyXEL P8802T ZyXEL Basic Home Station VDSL2 P8802T For more detail features, please refer to User's manual as file name “Installation guide.pdf”

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 6 of 8 4.1 Antenna description 1. Chain 0 (18cm) The EUT uses a permanently connected antenna. Antenna Model : RFA-02-3C52H070180CW Antenna Gain : 3 dBi Antenna Type : Dipole antenna Connector Type : Fixed type 2. Chain 1 (22cm) The EUT uses a permanently connected antenna. Antenna Model : RFA-02-3C52H070220CW Antenna Gain : 3 dBi Antenna Type : Dipole antenna Connector Type : Fixed type 4.2 Adapter information The EUT will be supplied with a power supply from below list: No. Brand Model no. Specification I/P: 100-240Vac, 50/60Hz, 0.4A MAX. Adapter 1 UMEC UP0181A-12PA O/P: +12Vdc, 1.5A, 18W MAX. I/P: 100-240Vac, 50/60Hz, 0.4A MAX. Adapter 2 UMEC UP0181A-12PE O/P: +12Vdc, 1.5A, 18W MAX.

FCC ID.: I88P8802T Report No.: TS12070053-EME Page 7 of 8 5. Test results Antenna No. Total 1 2 3 4 5 6 Tx Status On On On Off Off Off Frequency MHz 850 2450 2450 2450 2450 5800 MPE Limit mW/cm2 0.57 1.00 1.00 0.00 0.00 0.00 Max % MPE % 90.5 77.8 8.4 6.5 0.0 0.0 0.0 Power (W) 2.136 1.760 0.211 0.165 0.000 0.000 0.000 Antenna Gain dBi 1.00 3.00 3.00 5.00 5.00 1.00 EIRP (W) 2.97 2.216 0.421 0.329 0.000 0.000 0.000 X (cm) -10.0 8.0 -8.0 -6.0 6.0 8.0 Y (cm) 1.0 9.0 9.0 8.0 8.0 0.0 Sector FALSE FALSE FALSE FALSE FALSE FALSE Arc FALSE FALSE FALSE FALSE FALSE FALSE θ1 180 180 180 0.001 0.001 0.001 input θ2 179 179 179 0.001 0.001 0.001 degs θ1 180 180 180 0 0 0 actual θ2 179 179 179 -180 -180 -180 % MPE Contour 45 40 80.0-100.0 35 30 60.0-80.0 Note: The 0% contour 25 surrounding the 20 antennas identifies a 20 40.0-60.0 15 cm perimeter 10 Distance Y (cm) surrounding all active 20.0-40.0 antennas 5 0 -5 0.0-20.0 -10 -15 -20 -25 -30 -35 -40 -45 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 Distance X (cm) The Notice in Installation Manual has been stated as below: While installing and operating this transmitter, the radio frequency exposure limit of 1 mW/ (cm2) may be exceeded at distances close to the transmitter. Therefore, the user must maintain a minimum distance of 20 cm from the device at all time.

Intertek ample *in earice


Document Created: 2012-08-17 17:45:25
Document Modified: 2012-08-17 17:45:25
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