RF exposure report

FCC ID: LDKSPKSH1576

RF Exposure Info

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FCCID_3869749

EDCS#: 12180049 Maximum Permissible Exposure Study - Engineering Analysis For Model: SPK-SHARE 2.4 GHz /5.0 GHz Wi-Fi Radio 802.11a/ac/b/g/n + Bluetooth v2.1 + BTLE v4.0 FCC ID: LDKSPKSH1576 ISED ID: 2461L-SPKSH1576 Against the following Specifications: 47 Code of Federal Regulations 2.1091 Industry Canada RSS-102 Issue 5 Cisco Systems 170 West Tasman Drive San Jose, CA 95134 This report replaces any previously entered test report under EDCS –. This test report has been electronically authorized and archived using the CISCO Doc Central. Test Report Template EDCS# 11556830 & EDCS# 11556831. 1

EDCS#: 12180049 Prepared By: Cisco Systems Inc Date: 01/15/2018 170 West Tasman San Jose, CA 95134 USA 1.0 Attestation Statement of Compliance The Cisco Systems SPK-SHARE dongle with integrated 802.11a/b/g/n/ac and 802.15 radios have been evaluated for Maximum Permissible Exposure in compliance with 47 Code of Federal Regulations 2.1093. The evaluation was in accordance with methodology as referenced in FCC KDB 447498 D01 General RF Exposure Guidance v06 This report serves as the additional technical analysis of the Cisco radio modules The limits used for this evaluation are in line with the recommendations of the World Health Organizations (WHO) International Committee on Non Ionizing Radiation Protection (ICNIRP) as well as the American National Standards Institute (ANSI) C95.1. The limits chosen are of General Population/Uncontrolled Exposure. This analysis also complies with the requirements stated in Industry Canada RSS-102 as well as the applicable Australian and New Zealand regulations. Only the following case scenario was used which are: 2.4GHz WLAN Radio: FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 5250-5350MHz WLAN Radio: FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 5470-5725MHz WLAN Radio: FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 Output power listed is conducted. The antenna(s) used for this device must be installed to provide a separation distance of at least 20 cm from all persons. Installers must be provided with antenna installation and transmitter operating conditions for satisfying RF exposure compliance. Based on the study this case scenario, the General Population/Uncontrolled Exposure and the minimum recommended distance is around 20cm (8 inches) from the antenna. 2

EDCS#: 12180049 The SPK_SHARE dongle radio has been evaluated for Maximum Permissible Exposure in compliance with 47 Code of Federal Regulations 2.1091 and RSS-102 Issue 5. The evaluation was in accordance with methodology as referenced in FCC Bulletin OET 65C (rev 01-01) along with KDB 447498 D01 General RF Exposure Guidance. This report serves as the additional technical analysis of the Cisco radio modules The limits chosen are of General Population/Uncontrolled Exposure. The limits used for this evaluation are in line with the recommendations of the World Health Organizations (WHO) International Committee on Non Ionizing Radiation Protection (ICNIRP) as well as the American National Standards Institute (ANSI) C95.1. This analysis also complies with the requirements stated in Industry Canada RSS-102 as well as the applicable Australian and New Zealand regulations. The following case scenarios were used: Bluetooth Low Energy report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 Bluetooth Basic Rate/ EDR report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 2.4GHz DTS report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 5GHz UNII-1 report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 5GHz UNII-2A report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 5GHz UNII-2C report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 5GHz UNII-3 report FCC ID: LDKSPKSH1576, IC: 2461L-SPKSH1576 This device must be installed to provide a separation distance of at least 20 cm from all persons. Installers must be provided with antenna installation and transmitter operating conditions for satisfying RF exposure compliance. Based on the study this case scenario, the General Population/Uncontrolled Exposure and the minimum recommended distance is around 20cm (8 inches) from the antenna. Danh Le Test Engineer Cisco Systems Inc Corporate Compliance and Certifications 125 West Tasman Drive San Jose, CA 95134 Email: danhl@ciso.com 3

EDCS#: 12180049 2.0 EUT Description. SPK_SHARE wireless dongle Cisco SPK-SHARE dongle is the next generation cloud collaboration platform that unifies messaging, meeting and calling and content-sharing. Cisco SPK-Share provides HDMI support for connection to a display and USB Type-C interface to receive 5V power. Cisco SPK- Share offers both wired and wireless solution with Ethernet via USB 2.0 external adapter and 802.11a/b/g/n/ac, Bluetooth classic and Bluetooth LE radios. Below are brief summary of the SPK-SHARE hardware specifications: Wired Protocol support ● USB C main interface (Power, Ethernet via USB2) ● External POE Ethernet adapter (Ethernet Injector accessory connected via USB type C) - Ethernet: 10/100/1000BASE-T Ethernet network (IEEE 802.3i/802.3u/802.3ab/802.3az) ● External18W power supply (Direct connected via USB) Wireless Protocols support ● Wi-Fi: IEEE 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac ● Bluetooth: IEEE 802.15 Basic Rate + EDR v3.0, Low Energy v4.1 2.4GHz FHSS Radio Supported Modes:  802.15 BlueTooth ver 2.1+EDR (1Mbps – 3Mbps) 2.4GHz BTLE Radio Supported Modes:  802.15 BlueTooth ver 4.1 (1Mbps)  2.4GHz WLAN Radio Supported Modes:  802.11b (1Mbps – 11Mbps)  802.11g (6Mbps - 54Mbps)  802.11n (HT20, MCS0 – MCS7)  802.11n (HT40, MCS0 – MCS9) 5GHz WLAN Radio Supported Modes:  802.11a (6Mbps – 54Mbps)  802.11n (HT20, MCS0 – MCS15)  802.11n (HT40, MCS0 – MCS15)  802.11ac (VHT40, MCS0 – MCS19)  802.11ac (VHT80, MCS0 – MCS19) 4

EDCS#: 12180049 The following antennas are supported by this product series. The data included in this report represent the worst case data for all antennas. Frequency Antenna Gain Part Number Antenna Type (MHz) Peak (dBi) 2400 – 2500 CI8847-11-000-R-FA PIFA 1.24 5150 – 5250 CI8847-11-000-R-FA PIFA 4.26 5250 – 5350 CI8847-11-000-R-FA PIFA 4.26 5470 – 5725 CI8847-11-000-R-FA PIFA 3.77 5725 – 5850 CI8847-11-000-R-FA PIFA 2.85 3.0 Methodology All calculations were made in accordance with ANSI C95.1, and FCC 447498 D01 General RF Exposure Guidance v06. Measurement Uncertainty Values Parameter Max MU from Declared MU standard Occupied Channel Bandwidth +/- 5% +/-2% RF Output Power, conducted +/- 1,5dB +/-1.4dB Power Spectral Density, conducted +/- 3dB +/- 2dB Unwanted emissions, conducted +/- 3dB +/- 2dB All emissions, radiated +/- 6dB +/- 3.2dB Temperature +/- 3C +/- 0.7C Supply Voltages +/- 3% +/- 2.5% Time +/- 5% +/-2% 5

EDCS#: 12180049 4.0 Technical Requirements 4.1 Single Band Operation – Limits FCC Limits for Maximum Permissible Exposure (MPE) (A) Limits for Occupational/Controlled Exposure Frequency Electric Field Magnetic Field Power Density Averaging Time Range Strength (E) Strength (H) (S) |E|2, |H|2 or S (MHz) (V/m) (A/m) (mW/cm2) (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f2)* 6 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 Frequency Electric Field Magnetic Field Power Density Averaging Time Range Strength (E) Strength (H) (S) |E|2, |H|2 or S (MHz) (V/m) (A/m) (mW/cm2) (minutes) 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 NOTE 1: See Section 1 for discussion of exposure categories. NOTE 2: The averaging time for General Population/Uncontrolled exposure to fixed transmitters is not applicable for mobile and portable transmitters. See 47 CFR §§2.1091 and 2.1093 on source- based time-averaging requirements for mobile and portable transmitters. 6

EDCS#: 12180049 Devices are subject to the radio frequency radiation exposure requirements specified in RSS-102 Issue 5. All equipment shall be considered to operate in a “general population/uncontrolled” environment. Limit for RF Exposure RSS-102, issue 5, section 2.5.2 or from section 4, table 4 Frequency Reference Electric Field Magnetic Field Power Dentisty Range Period (MHz) (V/m rms) (A/m rms) (W/m2) (minutes) 300-6000 __ __ 0.02619 ƒ 0.6834 6 Note: ƒ is frequency in MHz. 7

EDCS#: 12180049 5.0 Calculations The RSS RF Exposure limits (W/m2) are calculated as follows: Limit calculation Worst case 2.4GHz DTS channel is channel 11 (2462MHz) 0.02619 ƒ0.6834 = 0.02619 x (2462 0.6834) = 0.02619 x 207.78 = 5.44 W/m2 Worst case 2.4GHz FHSS channel is channel 79 (2480MHz) 0.02619 ƒ0.6834 = 0.02619 x (2480 0.6834) = 0.02619 x 208.82 = 5.47 W/m2 Worst case 2.4GHz BTLE channel is channel 39 (2480MHz) 0.02619 ƒ0.6834 = 0.02619 x (2480 0.6834) = 0.02619 x 208.82 = 5.47 W/m2 Worst case 5GHz UNII-1 channel is channel 44 (5220MHz) 0.02619 ƒ0.6834 = 0.02619 x (5220 0.6834) = 0.02619 x 347.26 = 9.09 W/m2 Worst case 5GHz UNII-2A channel is channel 64 (5320MHz) 0.02619 ƒ0.6834 = 0.02619 x (5320 0.6834) = 0.02619 x 351.79 = 9.21 W/m2 Worst case 5GHz UNII-2C channel is channel 132 (5660MHz) 0.02619 ƒ0.6834 = 0.02619 x (5660 0.6834) = 0.02619 x 367.01 = 9.61 W/m2 Worst case 5GHz UNII-3 channel is channel 157 (5785MHz) 0.02619 ƒ0.6834 = 0.02619 x (5785 0.6834) = 0.02619 x 372.53 = 9.76 W/m2 8

EDCS#: 12180049 The Power Density (mW/cm2) is calculated as follows: S = PG (Duty Cycle) / 4πR2 (Equation 1) Solve for R R= (Equation 2) Where: S = power density (in appropriate units, e.g. mW/cm2) P = power input to the antenna (in appropriate units, e.g., mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm) DC= Duty Cycle 9

EDCS#: 12180049 6.0 Results Test Reports used in evaluation are : Bluetooth Low Energy report FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 Bluetooth Basic Rate/ EDR FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 2.4GHz DTS report FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 5GHz UNII-1 report FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 5GHz UNII-2A report FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 5GHz UNII-2C report FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 5GHz UNII-3 report FCC ID: LDKSPKSH1576, ISED ID: 2461L-SPKSH1576 10

EDCS#: 12180049 MPE Calculations S=1mW/cm²maximum. The highest supported antenna gain is 1.24 dBi for 2.4GHz radio and 4.26 dBi for 5 GHz radio. Table 1 below contains the calculated Power Density Level by applying the formula in Equation 1 above. Table 1 Power Density Level @ 20 cm Distance Frequency Data Total Peak Ant. FCC/RSS Calculated FCC RSS Rate TX Power Gain Min. Distance Power PowerDensity PowerDensity Ant. Port0 +Port1 Allowed Density Limit Limit @20 cm @20 cm (MHz) (Mbps) (dBm) (dBi) (cm) (mW/cm²) (mW/cm²) (mW/cm²) Radio#1 Mode: 802.11b (2.4 GHz Wi-Fi) 2462 1 20.39 1.24 20 0.029 1 0.091 Radio#2 Mode: 802.15 (2.4 GHz Bluetooth /FHSS) 2480 1 5.78 1.24 20 0.001 1 0.091 Radio#3 Mode: 802.15 (2.4 GHz Bluetooth LE) 2480 1 2.30 1.24 20 0.000 1 0.091 Radio#4 Mode: 802.11a (5 GHz Wi-Fi (UNII-1)) 5220 6 16.37 4.26 20 0.023 1 0.091 Radio#5 Mode: 802.11a (5 GHz Wi-Fi (UNII-2A)) 5320 6 16.25 4.26 20 0.022 1 0.091 Radio#6 Mode: 802.11a (5 GHz Wi-Fi (UNII-2C)) 5660 6 14.54 3.77 20 0.013 1 0.091 Radio#7 Mode: 802.11a (5 GHz Wi-Fi (UNII-3)) 5785 6 15.69 2.85 20 0.014 1 0.091 11

EDCS#: 12180049 MPE Calculations (continue) To maintain compliance with the FCC / RSS power density limit (1mW/cm²), installations will assure a separation distance of at least 20cm or according to the calculated minimum distance entered in table 2. Table 2 below contains the calculated minimum distance allowed by applying the formula in Equation 2 above. Table 2 Calculated Minimum Distance Allowed Frequency Data Total Peak Ant. Calculated Calculated Closet FCC/RSS Margin Rate TX Power Gain Power Distance Allowed Limit Ant. Port0 +Port1 Density Without Going Distance Over Limit (MHz) (Mbps) (dBm) (dBi) (mW/cm²) (cm) (cm) (mW/cm²) Radio#1 Mode: 802.11b (2.4 GHz Wi-Fi) 2462 1 20.39 1.24 0.029 3.41 20 16.6 Radio#2 Mode: 802.15 (2.4 GHz Bluetooth /FHSS) 2480 1 5.78 1.24 0.001 0.63 20 19.4 Radio#3 Mode: 802.15 (2.4 GHz Bluetooth LE) 2480 1 2.30 1.24 0.000 0 20 20 Radio#4 Mode: 802.11a (5 GHz Wi-Fi (UNII-1)) 5220 6 16.37 4.26 0.023 3.03 20 17.0 Radio#5 Mode: 802.11a (5 GHz Wi-Fi (UNII-2A)) 5320 6 16.25 4.26 0.022 2.97 20 17.0 Radio#6 Mode: 802.11a (5 GHz Wi-Fi (UNII-2C)) 5660 6 14.54 3.77 0.013 2.28 20 17.7 Radio#7 Mode: 802.11a (5 GHz Wi-Fi (UNII-3)) 5785 6 15.69 2.85 0.014 2.38 20 17.6 12

EDCS#: 12180049 Calculations with simultaneous transmitters Scenerio1 : 2400MHz to 2483.5MHz (DTS) radio 5150MHz to 5150MHz (UNII-1) radio Tx1 Tx2 Tx3 Tx4 Tx5 Tx6 Tx7 % of Standard 0.029 0.023 0.052 Tx1 + Tx4 = % of Standard (0.029) + (0.023) = 0.052 D (estimate) = 20 √0.052% D = 4.56 cm Scenerio2 : 2400MHz to 2483.5MHz (BT BR) radio 2400MHz to 2483.5MHz (DTS) radio 5250MHz to 5350MHz (UNII-2A) radio Tx1 Tx2 Tx3 Tx4 Tx5 Tx6 Tx7 % of Standard 0.029 0.001 0.023 0.053 Tx1 + Tx2 + Tx4 = % of Standard (0.029) + (0.001) + (0.023) = 0.053 D (estimate) = 20 √0.053% D = 4.60 cm The configuration above co-location calculation is for General Population/Uncontrolled exposure. The minimum distance recommended is 20 cm (8 inches) when all antennas are within 20 cm of each other. 13

EDCS#: 12180049 Using the provided FCC MPE-Mobile.xls file, the “% MPE contour” summary tables and charts are given below for the simultaneous cases listed above. %MPE contour of 2462MHz (2.4GHz Wi-Fi), 2480MHz (2.4GHz BT BR) & 5220MHz (5 GHz Wi-Fi) radios Antenna No. Total 1 2 3 4 5 6 Tx Status On On Off On Off Off Frequency MHz 2462 2480 1900 5220 2450 5800 MPE Limit mW/cm2 1.00 1.00 0.00 1.00 0.00 0.00 Max % MPE % 5.1 2.9 0.1 0.0 2.3 0.0 0.0 Power (W) 0.156 0.109 0.004 0.000 0.043 0.000 0.000 Antenna Gain dBi 1.24 1.24 3.00 4.26 0.50 1.00 EIRP (W) 0.27 0.145 0.005 0.000 0.115 0.000 0.000 14

EDCS#: 12180049 References American National Standards Institute (ANSI), "Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz," ANSI/IEEE C95.1-1992 (previously issued as IEEE C95.1-1991). Copyright 1992 by the Institute of Electrical and Electronics Engineers, Inc. (IEEE), New York, N.Y. 10017. For copies contact the IEEE: 1-800-678-4333 or 1-908-981-1393. American National Standards Institute (ANSI), "Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields - RF and Microwave”. ANSI/IEEE C95.3- 1992. Copyright 1992, The Institute of Electrical and Electronics Engineers, Inc. (IEEE), New York, NY 10017. For copies contact the IEEE: 1-800-678-4333 or 1-908-981-1393. FCC OET 65C Evaluating Compliance with FCC Guidelines for Human Exposure to RF Fields from 9KHz to 40 GHz FCC KDB 447498 D01 General RF Exposure Guidance v06 15


Document Created: 2018-05-25 16:17:05
Document Modified: 2018-05-25 16:17:05
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