MPE Calculation

FCC ID: UDX-60083010

RF Exposure Info

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FCCID_4222549

RF Exposure Report Report No.: SA180704E02I FCC ID: UDX-60083010 Test Model: MR55-HW Received Date: Oct. 18, 2018 Test Date: Oct. 18, 2018 to Jan. 02, 2019 Issued Date: Mar. 12, 2019 Applicant: Cisco Systems, Inc. Address: 170 West Tasman Drive, San Jose, CA 95134 USA Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan R.O.C. Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan R.O.C. FCC Registration / 723255 / TW2022 Designation Number: This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report must not be used by the client to claim product certification, approval, or endorsement by any government agencies. Report No.: SA180704E02I Page No. 1 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity ...................................................................................................................... 4 2 RF Exposure .......................................................................................................................................... 5 2.1 Limits for Maximum Permissible Exposure (MPE) .............................................................................. 5 2.2 MPE Calculation Formula ................................................................................................................... 5 2.3 Classification ....................................................................................................................................... 5 2.4 Antenna Gain ...................................................................................................................................... 6 2.5 Calculation Result of Maximum Conducted Power ............................................................................. 7 Report No.: SA180704E02I Page No. 2 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

Release Control Record Issue No. Description Date Issued SA180704E02I Original release. Mar. 12, 2019 Report No.: SA180704E02I Page No. 3 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

1 Certificate of Conformity Product: 8x8 802.11a/b/g/n/ac/ax Access Point Brand: Cisco Test Model: MR55-HW Sample Status: ENGINEERING SAMPLE Applicant: Cisco Systems, Inc. Test Date: Oct. 18, 2018 to Jan. 02, 2019 Standards: FCC Part 2 (Section 2.1091) KDB 447498 D01 General RF Exposure Guidance v06 IEEE C95.1-1992 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s EMC characteristics under the conditions specified in this report. Prepared by : , Date: Mar. 12, 2019 Phoenix Huang / Specialist Approved by : , Date: Mar. 12, 2019 May Chen / Manager Report No.: SA180704E02I Page No. 4 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

2 RF Exposure 2.1 Limits for Maximum Permissible Exposure (MPE) Frequency Range Electric Field Magnetic Field Power Density Average Time 2 (MHz) Strength (V/m) Strength (A/m) (mW/cm ) (minutes) Limits For General Population / Uncontrolled Exposure 0.3-1.34 614 1.63 (100)* 30 2 1.34-30 824/f 2.19/f (180/f )* 30 30-300 27.5 0.073 0.2 30 300-1500 … … f/1500 30 1500-100,000 … … 1.0 30 f = Frequency in MHz ; *Plane-wave equivalent power density 2.2 MPE Calculation Formula 2 Pd = (Pout*G) / (4*pi*r ) where 2 Pd = power density in mW/cm Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm 2.3 Classification The antenna of this product, under normal use condition, is at least 34cm away from the body of the user. So, this device is classified as Mobile Device. Report No.: SA180704E02I Page No. 5 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

2.4 Antenna Gain WLAN Directional gain table – 8TX Directional Antenna Gain Frequency range (GHz) Antenna Type Antenna Connector (dBi) 5.15 ~ 5.25 9.29 5.25 ~ 5.35 9.34 PIFA i-pex(MHF) 5.47 ~ 5.725 8.88 5.725 ~ 5.85 9.2 WLAN Directional gain table – 4TX Frequency range Directional Antenna Antenna Combine Type Antenna Type (GHz) Antenna Gain (dBi) Connector 2.4 ~ 2.4835 Dual_1+Dual_2+Dual_3+Dual_4 5.43 5.15 ~ 5.25 10.73 5.25 ~ 5.35 10.71 PIFA i-pex(MHF) Single_1+Single_2+Single_3+Single_4 5.47 ~ 5.725 10.33 5.725 ~ 5.85 10.68 WLAN Directional gain table – 2TX Frequency range Antenna Combine Directional Antenna Antenna Type Antenna Connector (GHz) Type Gain (dBi) 2.4 ~ 2.4835 Dual_1+Dual_3 6.33 5.15 ~ 5.25 8.47 5.25 ~ 5.35 8.92 PIFA i-pex(MHF) Dual_2+Dual_3 5.47 ~ 5.725 8.16 5.725 ~ 5.85 8.59 Bluetooth antenna spec. Antenna Net Gain Frequency range Antenna Type Antenna Connector (dBi) (GHz) 3.61 2.4~2.4835 PIFA i-pex(MHF) Note: More detailed information, please refer to operating description. Report No.: SA180704E02I Page No. 6 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

2.5 Calculation Result of Maximum Conducted Power For 2.4GHz, 5GHz (U-NII-1 & UNII-3 band) and Bluetooth data was copied from the original test report (Report No.: SA180704E02) Evaluation Operation Max Power Antenna Gain Distance Power Density Limit Frequency 2 2 Mode (mW) (dBi) (cm) (mW/cm ) (mW/cm ) (MHz) WLAN 2.4GHz 2437 864.55 5.43 34 0.20779 1 (4TX) WLAN 2.4GHz 2437 456.82 6.33 34 0.13508 1 (2TX) WLAN 2.4GHz 2437 204.174 5.54 34 0.05033 1 (1TX) WLAN U-NII-1 5180 432.724 9.29 34 0.25295 1 (8TX) WLAN U-NII-1 5230 430.677 10.73 34 0.35074 1 (4TX) WLAN U-NII-1 5200 376.099 8.47 34 0.18203 1 (2TX) WLAN U-NII-1 5200 224.905 6.2 34 0.06454 1 (1TX) WLAN U-NII-2A 5290 112.582 9.34 34 0.06657 1 (8TX) WLAN U-NII-2A 5270 156.395 10.71 34 0.12678 1 (4TX) WLAN U-NII-2A 5270 224.418 8.92 34 0.12047 1 (2TX) WLAN U-NII-2A 5300 110.662 6.44 34 0.03356 1 (1TX) WLAN U-NII-2C 5550 127.845 8.88 34 0.06800 1 (8TX) WLAN U-NII-2C 5610 238.486 10.33 34 0.17713 1 (4TX) WLAN U-NII-2C 5670 227.318 8.16 34 0.10244 1 (2TX) WLAN U-NII-2C 5580 110.662 5.8 34 0.02896 1 (1TX) WLAN U-NII-3 5825 412.219 9.2 34 0.23603 1 (8TX) WLAN U-NII-3 5825 902.442 10.68 34 0.72653 1 (4TX) WLAN U-NII-3 5745 440.884 8.59 34 0.21936 1 (2TX) WLAN U-NII-3 5745 238.781 6.39 34 0.07159 1 (1TX) BT-LE 2402 4.508 3.61 34 0.00071 1 Report No.: SA180704E02I Page No. 7 / 8 Report Format Version: 6.1.1 Reference No.: 190102C14

Eooert venitas Note: 1. The Max. Power = Max. tune up power including tolerance. 2. 2.4GHz (4TX): The directional gain = 5.43dBi 2.4GHz (2TX): The directional gain = 6.33dBi 2.4GHz (1TX); The max. gain = 5.54dBi 5GHz: U—NII—1 (8TX : The directional gain = 9.29dBi U—NIl—1 (4TX : The directional gain = 10.73dBi U—Nil—1 (2TX : The directional gain = 8.47dBi U—Nil—1 ( (1TX : The max. gain = 6.20Bi U—NII—2A (8TX): The directional gain = 9.34dBi U—NII—2A (4TX): The directional gain = 10.710Bi U—NII—2A (2TX): The directional gain = 8.92dBi U—NII—2A A (1TX): ): The max. gain = 6.44dBi U—NII—2C C (8TX): The directional gain = 8.88dBi U—NII—2C C (4TX): The directional gain = 10.33dBi U—NII—2C (2TX): The directional gain = 8.16dBi U—NII—2C (1TX): The max. gain = 5.8dBi U—NII—3 (8TX): The directional gain = 9.2dBi U—NII—3 (4TX): The directional gain = 10.68dBi U—NII—3 (2TX): The directional gain = 8.590Bi U—NIl—3 (1TX): The max. gain = 6.390Bi Conclusion: The formula of calculated the MPE is: CPD1 / LPD1 + CPD2 / LPD2 + ... etc. < 1 CPD = Calculation power density LPD = Limit of power density WLAN 2.4GHz + WLAN 5GHz + Bluetooth = 0.20779 / 1 + 0.72653 / 1 + 0.00071 /1 = 0.93503 Therefore the maximum calculations of above situations are less than the "1" limit. ——— END ——— Report No.: $A180704E02! Page No. 8 / 8 Report Format Version: 6.1.1 Reference No.: 190102014


Document Created: 2019-04-11 05:52:55
Document Modified: 2019-04-11 05:52:55
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