60083010 8x8 802.11a/b/g/n/ac/ax Access Point RF Exposure Info MPE Calculation Cisco Systems

Cisco Systems 8x8 802.11a/b/g/n/ac/ax Access Point

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                                                           RF Exposure Report

                       Report No.: SA180704E02

                            FCC ID: UDX-60083010

                       Test Model: MR55-HW

                 Received Date: July 05, 2018

                         Test Date: Oct. 18 to 19, 2018

                     Issued Date: Dec. 24, 2018


                         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.

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Reference No.: 180704E02


                                                                   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




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Reference No.: 180704E02


                                           Release Control Record


Issue No.              Description                                         Date Issued
SA180704E02            Original release.                                   Dec. 24, 2018




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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 to 19, 2018

         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:      Dec. 24, 2018
                                Phoenix Huang / Specialist




     Approved by :                                               ,   Date:      Dec. 24, 2018
                                  May Chen / Manager




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2      RF Exposure

2.1     Limits for Maximum Permissible Exposure (MPE)

    Frequency Range          Electric Field     Magnetic Field       Power Density      Average Time
         (MHz)              Strength (V/m)      Strength (A/m)         (mW/cm2)           (minutes)
                             Limits For General Population / Uncontrolled Exposure
        0.3-1.34                 614                  1.63               (100)*               30
        1.34-30                 824/f                2.19/f             (180/f2)*             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

Pd = (Pout*G) / (4*pi*r2)
where
Pd = power density in mW/cm 2
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.




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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
                                                                   PIFA                  i-pex(MHF)
        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           PIFA                i-pex(MHF)
                Single_1+Single_2+Single_3+Single_4
  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                PIFA             i-pex(MHF)
                            Dual_2+Dual_3
      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.




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2.5    Calculation Result of Maximum Conducted Power

                   Evaluation
  Operation                       Max Power    Antenna Gain    Distance   Power Density       Limit
                   Frequency
   Mode                             (mW)           (dBi)         (cm)       (mW/cm2)        (mW/cm2)
                     (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-3
                      5825         412.219           9.29        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

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-NII-1 (4TX): The directional gain = 10.73dBi
   U-NII-1 (2TX): The directional gain = 8.47dBi
   U-NII-1 (1TX): The max. gain = 6.2dBi
   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 = 8.59dBi
   U-NII-3 (1TX): The max. gain = 6.39dBi


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 ---


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Reference No.: 180704E02



Document Created: 2019-03-23 18:21:15
Document Modified: 2019-03-23 18:21:15
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Document ID4121695
Application ID+u+ws4mnttSsMP5HOpnZ5w==
Document DescriptionMPE Calculation
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize40.42kB (505288 bits)
Date Submitted2018-12-28 00:00:00
Date Available2019-01-18 00:00:00
Creation Date0000-00-00 00:00:00
Document Lastmod0000-00-00 00:00:00
Document TitleMPE Calculation