RF Exposure Info

FCC ID: I88B500

RF Exposure Info

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FCCID_378786

FCC ID. : I88B500 Report No.: EME-031174 Page 1 of 5 Maximum Permissible Exposure (MPE) Evaluation Report Report No. : EME-031174 Model No. : ZyAIR B-500 Issued Date : Nov. 12, 2003 Applicant : ZyXEL Communications Corporation No. 6, Innovation Rd. II, Science-Based Industrial Park, Hsin-Chu, Taiwan Test By : Intertek Testing Services Taiwan Ltd. No. 11, Lane 275, Ko-Nan 1 Street, Chia-Tung Li, Shiang-Shan District, Hsinchu City, Taiwan This test report consists of 5 pages in total. 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 ITS Laboratory. The test result in this report only applies to the tested sample. Project Engineer Reviewed By Jerry Liu Elton Chen

FCC ID. : I88B500 Report No.: EME-031174 Page 2 of 5 Table of Contents Summary of Tests ......................................................................................................... 3 1. Introduction .............................................................................................................. 4 2. RF Exposure Limit ................................................................................................... 4 3. RF Exposure calculations.......................................................................................... 5 4. Test results................................................................................................................ 5

FCC ID. : I88B500 Report No.: EME-031174 Page 3 of 5 Summary of Tests MPE Evaluation meet FCC OET No. 65: 1997/ IEEE C95.1-1999 Wireless LAN Access Point-Model: ZyAIR B-500 FCC ID: I88B500 Test Reference Results MPE Evaluation FCC Guidelines for Human Exposure IEEE C95.1 Complies

FCC ID. : I88B500 Report No.: EME-031174 Page 4 of 5 1. Introduction The EUT operates in the 2.4GHz 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 20cm distance away from the product. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. 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

DiGkciq ETL SEMKO recuw.issesco Report No.: Eutt.o3i174 Pae 5 us 3. RF Exposure calculations From §FCC 1.1310 table 1, the maximum permissble RF exposure foran uncorezolled enviconment is ImW/(em) Power density (5) is calculated by the following formala: s=roj4mtt where, Poner density (mWem‘) Output power to antenna (imW) RR = Distance between radiatingstructure and abservation point (om) G = Gainofantena in numeri r=3.u16 Example: Assume a mobiledevice operates at 24 I2MHz and its maximum ourput power is 50mW, and the maximum gain of antenna.is 1 (numeric) B then the pover density (8) = (50 * 1)@4*r20= 0.00995 (mWem‘) 4. Test results Chantel Maximum [Outpit power]Power densig Limg of Chantel Frequency |antennagain o antenta ower densiy (MH») (numeric) (mW) (mWien) |_(mWiemd i se E51 Toss ooz to G Een is1 seao aore To i e is1 1ooss o03 Lo "The Nerice in Installation Manual has been stated as belon: While nstalling and operatingthis ransmiter, the radio frequency exposicelimit of IimWifemem) may be exceeded at ditances close to the ransmiter.therefare, the user must maieain a mitimum distance of 20 cm from the deviceat all ime.


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Document Modified: 2019-10-12 14:03:46
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