I88EX2210-T0Dual-Band Wireless AX1800 Gigabit Ethernet Gateway

Zyxel Communications Corporation Attestation Letter Federal Communications Commission Authorization and Evaluation Division We Name: Zyxel Communications Corporation Address: No.2, Industry East Road IX, Science Park Hsinchu,Taiwan Declare that the device does not support channel 12 ~ 13 in 2.4GHz band and any non-US channels in all the operational mode(s) for the following product. Product: Dual-Band Wireless AX1800 Gigabit Ethernet Gateway FCC ID: I88EX2210-T0 Model No.: EX2210-T0 Sincerely, _________________ Name: Emma Bao Title: Manager Email: [email protected] Date: 2022/05/24

Zyxel Communications Corporation Declaration of Conformity Federal Communications Commission Authorization and Evaluation Division F F C C C C I I D D : : I I 8 8 8 8 E E X X 2 2 2 2 1 1 0 0 - - T T 0 0 Please be notified that we, the undersigned, Zyxel Communications Corporation declares that the product which bears the above FCC ID is also compliant with the FCC requirements for sDOC. And the sDOC procedure shall be carried out prior to marketing the device in the US. Sincerely, _________________ Name: Emma Bao Title: Manager Email: [email protected] Date: 2022/05/24

Zyxel Communications Corporation Non-SDR (Software Defined Radio) Cover Letter Page 1 of 1 Non-SDR (Software Defined Radio) Cover Letter Refer to KDB 442812 D01 SDR apps Guide v02r03. The following six questions can be used for determining if a radio can elect to be, or must be an SDR. 1. Can the RF parameters of the device be altered through software? Yes - go to 2. No, not an SDR NO 2. Can third parties not permitted by the Commission through specific filings modify, configure, or load different software, or make configuration settings to operate the device or host hardware radio frequency parameters (frequency range, modulation type, maximum output power or other radio parameters) in any other way than granted (or expected to be granted)? Yes, must be an SDR. No - go to 3. 3. Is the device capable of operating in any other in any other way than granted, or will be, granted? Yes, - go to 4. No - go to 5. 4. Is this a Part 15 client Device as defined in Section 15.202 (as opposed to a master device)? Yes, qualifies as a part 15 client devices - go to 5. No, must be an SDR. 5. Does the manufacturer elect SDR? Yes, elects to be an SDR. No, Not an SDR Final conclusion: According to the above questions reply, we can confirm this device (Product Description: I88EX2210-T0) must be a Non-SDR. _________________ Name: Emma Bao Title: Manager Email: [email protected] Date: 2022/05/24

Zyxel Communications Corporation Confidentiality Request Letter Federal Communications Commission Authorization and Evaluation Division FCC ID: I I 8 8 8 8 E E X X 2 2 2 2 1 1 0 0 - - T T 0 0 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: 1. Block Diagram 2. Schematics 3. Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, _________________ Name: Emma Bao Title: Manager Email: [email protected] Date: 2022/05/24

Zyxel Communications Corporation Declaration of Authorization We Name: Zyxel Communications Corporation Address: No.2, Industry East Road IX, Science Park Hsinchu,Taiwan Declare that: Name Representative of agent: Marlin Chen Agent Company name: MRT Technology (Suzhou) Co., Ltd Address: D8 Building, Youxin Industrial Park, No.2 Tian'edang Rd., Wuzhong Economic Development Zone City: Suzhou Country: China is authorized to apply for Certification of the following product(s): Product: Dual-Band Wireless AX1800 Gigabit Ethernet Gateway FCC ID: I88EX2210-T0 Model No.: EX2210-T0 Sincerely, ________________ Name: Emma Bao Title: Manager Email: [email protected] Date: 2022/05/24

Report No.:2203RSU090-UE 1of4 External Photograph (1) EUT Photo (2) EUT Photo Report No.:2203RSU090-UE 2of4 (3) EUT Photo (4) EUT Photo Report No.:2203RSU090-UE 3of4 (5) EUT Photo (6) EUT Photo Report No.:2203RSU090-UE 4of4 (7) EUT Photo (8) EUT Photo

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Report No.:2203RSU090-UE 1 of 5 Internal Photograph (1) EUT Photo (2) EUT Photo Report No.:2203RSU090-UE 2 of 5 (3) EUT Photo (4) EUT Photo Report No.:2203RSU090-UE 3 of 5 (5) EUT Photo (6) EUT Photo Report No.:2203RSU090-UE 4 of 5 (7) EUT Photo (8) EUT Photo Report No.:2203RSU090-UE 5 of 5 (9) EUT Photo

MRT Technology (Suzhou) Co., Ltd Report No.: 2203RSU090-U4 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2022-06-06 Template Version:0.0 1 of 8 RF Exposure Evaluation Declaration FCC ID: I88EX2210-T0 Applicant: Zyxel Communications Corporation Product: Dual-Band Wireless AX1800 Gigabit Ethernet Gateway Model No.: EX2210-T0 Brand Name: ZYXEL FCC Classification: Digital Transmission System (DTS) Unlicensed National Information Infrastructure (NII) FCC Rule Part(s): Part 2.1091 Result: Complies Test Date: 2022-05-07 Reviewed By: Kevin Guo Approved By: Robin Wu The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standards through the calibration of the equipment and evaluated measurement uncertainty herein. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2203RSU090-U4 2 of 8 Revision History Report No. Version Description Issue Date Note 2203RSU090-U4 Rev. 01 Initial Report 2022-06-06 Valid Report No.: 2203RSU090-U4 3 of 8 CONTENTS Description Page 1. General Information ................................................................................................................................ 4 1.1. Applicant ........................................................................................................................................ 4 1.2. Manufacturer ................................................................................................................................. 4 1.3. Testing Facility ............................................................................................................................... 4 1.4. Product Information ....................................................................................................................... 5 1.5. Antenna Details ............................................................................................................................. 5 2. RF Exposure Evaluation ......................................................................................................................... 6 2.1. Test Limits ..................................................................................................................................... 6 2.2. Test Result ..................................................................................................................................... 7 RF Exposure Evaluation ................................................................................................................................. 7 Appendix A - EUT Photograph ....................................................................................................................... 8 Report No.: 2203RSU090-U4 4 of 8 1. General Information 1.1. Applicant Zyxel Communications Corporation No.2, Industry East Road IX, Science Park Hsinchu,Taiwan 1.2. Manufacturer Zyxel Communications Corporation No.2, Industry East Road IX, Science Park Hsinchu,Taiwan 1.3. Testing Facility Test Site – MRT Suzhou Laboratory Laboratory Location (Suzhou - Wuzhong) D8 Building, No.2 Tian’edang Rd., Wuzhong Economic Development Zone, Suzhou, China Laboratory Location (Suzhou - SIP) 4b Building, Liando U Valley, No.200 Xingpu Rd., Shengpu Town, Suzhou Industrial Park, China Laboratory Accreditations A2LA: 3628.01 CNAS: L10551 FCC: CN1166 ISED: CN0001 VCCI: R-20025 G-20034 C-20020 T-20020 R-20141 G-20134 C-20103 T-20104 Test Site – MRT Shenzhen Laboratory Laboratory Location (Shenzhen) 1G, Building A, Junxiangda Building, Zhongshanyuan Road West, Nanshan District, Shenzhen, China Laboratory Accreditations A2LA: 3628.02 CNAS: L10551 FCC: CN1284 ISED: CN0105 Test Site – MRT Taiwan Laboratory Laboratory Location (Taiwan) No. 38, Fuxing 2nd Rd., Guishan Dist., Taoyuan City 333, Taiwan (R.O.C.) Laboratory Accreditations TAF: L3261-190725 FCC: 291082, TW3261 ISED: TW3261 Report No.: 2203RSU090-U4 5 of 8 1.4. Product Information Product Name Dual-Band Wireless AX1800 Gigabit Ethernet Gateway Model No. EX2210-T0 Wi-Fi Specification 802.11a/b/g/n/ac/ax Antenna Information Refer to clause 1.5 Operating Temperature 0°C to 40°C Accessories Adapter Model No.: MAUS-1201501801 Input Power: 100 - 240V ~ 50/60Hz, 0.5A Output Power: 12V dc 1.5A Remark: The information of EUT was provided by the manufacturer, and the accuracy of the information shall be the responsibility of the manufacturer. 1.5. Antenna Details Antenna Type Frequency Band (MHz) T X Paths Antenna Gain (dBi) Beamforming Directional Gain (dBi) CDD Directional Gain (dBi) Ant 0 Ant 1 For Power For PSD PCB Antenna 2412 ~ 2462 2 3.5 2.9 6.51 3.5 6.51 5180 ~ 5320 2 4.2 3.2 7.21 4.2 7.21 5500 ~ 5720 2 4.0 3.9 7.01 4.0 7.01 5745 ~ 5825 2 4.6 3.3 7.61 4.6 7.61 Remark: 1. The EUT supports Cyclic Delay Diversity (CDD) mode and CDD signals are correlated. If all antennas have the same gain, G ANT , Directional gain = G ANT + Array Gain, where Array Gain is as follows.  For power spectral density (PSD) measurements on all devices, Array Gain = 10 log (N ANT / N SS ) dB;  For power measurements on IEEE 802.11 devices, Array Gain = 0 dB for N ANT ≤ 4; 2. The EUT also supports Beam Forming mode, and the Beam Forming support 802.11ac/ax. BF Directional gain = G ANT + 10 log (N ANT ). For beamforming operation, manufacturer automatically backs power down based on a 10log(N) factor based on CDD power. Report No.: 2203RSU090-U4 6 of 8 2. RF Exposure Evaluation 2.1. Test Limits According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (Minutes) (A) Limits for Occupational/ Control Exposures 300…

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MRT Technology (Suzhou) Co., Ltd Report No.:2203RSU090-U1 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 05-26-2022 Template Version:0.0 1 of 149 RF MEASUREMENT REPORT FCC ID: I88EX2210-T0 Applicant: Zyxel Communications Corporation Product: Dual-Band Wireless AX1800 Gigabit Ethernet Gateway Model No.: EX2210-T0 Brand Name: ZYXEL FCC Classification: Digital Transmission System (DTS) FCC Rule Part(s): Part 15 Subpart C (Section 15.247) Result: Complies Test Date: April 09 ~ May 07, 2022 Reviewed By: Kevin Guo Approved By: Robin Wu The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10-2013. Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2203RSU090-U1 2 of 149 Revision History Report No. Version Description Issue Date Note 2203RSU090-U1 Rev. 01 Initial Report 05-26-2022 Valid Report No.: 2203RSU090-U1 3 of 149 CONTENTS Description Page 1. General Information ................................................................................................................................ 5 1.1. Applicant ...................................................................................................................................... 5 1.2. Manufacturer ................................................................................................................................ 5 1.3. Testing Facility ............................................................................................................................. 5 1.4. Product Information ...................................................................................................................... 6 1.5. Radio Specification ...................................................................................................................... 6 1.6. Working Frequencies ................................................................................................................... 7 1.7. Antenna Details ............................................................................................................................ 7 2. Test Configuration ................................................................................................................................... 8 2.1. Test Mode ..................................................................................................................................... 8 2.2. Test System Connection Diagram................................................................................................ 8 2.3. Test Software ............................................................................................................................... 9 2.4. Applied Standards ........................................................................................................................ 9 2.5. Test Environment Condition ......................................................................................................... 9 3. Antenna Requirements ......................................................................................................................... 10 4. Measuring Instrument ........................................................................................................................... 11 5. Measurement Uncertainty ..................................................................................................................... 12 6. Test Result .............................................................................................................................................. 13 6.1. Summary .................................................................................................................................... 13 6.2. 6dB Bandwidth Measurement .................................................................................................... 14 6.2.1. Test Limit .................................................................................................................................... 14 6.2.2. Test Procedure ........................................................................................................................... 14 6.2.3. Test Setting ................................................................................................................................ 14 6.2.4. Test Setup .................................................................................................................................. 14 6.2.5. Test Result ................................................................................................................................. 14 6.3. Output Power Measurement ...................................................................................................... 15 6.3.1. Test Limit .................................................................................................................................... 15 6.3.2. Test Procedure ........................................................................................................................... 15 6.3.3. Test Setting ................................................................................................................................ 15 6.3.4. Test Setup .................................................................................................................................. 15 6.3.5. Test Result ................................................................................................................................. 15 6.4. Power Spectral Density Measurement ...................................................................................... 16 6.4.1. Test …

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Report No.: 2203RSU090-U1 43 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 44 of 149 802.11g Out-of-Band Emissions – Ant 0 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 45 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 46 of 149 802.11n-HT20 Out-of-Band Emissions – Ant 0 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 47 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 48 of 149 802.11n-HT40 Out-of-Band Emissions – Ant 0 Channel 03 (2422MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 49 of 149 Channel 09 (2452MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 50 of 149 802.11ax-HE20 Out-of-Band Emissions – Ant 0 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 51 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 52 of 149 802.11ax-HE40 Out-of-Band Emissions – Ant 0 Channel 03 (2422MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 53 of 149 Channel 09 (2452MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 54 of 149 802.11b Out-of-Band Emissions – Ant 1 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 55 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 56 of 149 802.11g Out-of-Band Emissions – Ant 1 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 57 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 58 of 149 802.11n-HT20 Out-of-Band Emissions – Ant 1 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 59 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 60 of 149 802.11n-HT40 Out-of-Band Emissions – Ant 1 Channel 03 (2422MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission

Report No.: 2203RSU090-U1 61 of 149 Channel 09 (2452MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 62 of 149 802.11ax-HE20 Out-of-Band Emissions – Ant 1 Channel 01 (2412MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 63 of 149 Channel 11 (2462MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 64 of 149 802.11ax-HE40 Out-of-Band Emissions – Ant 1 Channel 03 (2422MHz) Reference Level Low Band Edge Spurious Emission Channel 06 (2437MHz) Reference Level Spurious Emission Report No.: 2203RSU090-U1 65 of 149 Channel 09 (2452MHz) Reference Level High Band Edge Spurious Emission Report No.: 2203RSU090-U1 66 of 149 A.6 Radiated Spurious Emission Test Result Test Site SIP-AC3 Test Engineer Mero Zhou Test Date 2022/04/18 Test Mode 802.11b Remark 1. Average measurement was not performed if peak level lower than average limit. 2. Other frequency was 20dB below limit line within 1-18GHz, there is not show in the report. Test Channel Frequency (MHz) Reading Level (dBμV) Factor (dB/m) Measure Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector Polarization 01 4825.0 63.2 -8.7 54.5 74.0 -19.5 Peak Horizontal 4825.0 62.5 -8.7 53.8 54.0 -0.2 Average Horizontal 11217.0 48.8 -2.9 45.9 74.0 -28.1 Peak Horizontal 15841.0 46.3 3.6 49.9 74.0 -24.1 Peak Horizontal 4825.0 62.0 -8.7 53.3 74.0 -20.7 Peak Vertical 4825.0 58.3 -8.7 49.6 54.0 -4.4 Average Vertical 12067.0 49.4 -2.8 46.6 74.0 -27.4 Peak Vertical 15671.0 45.6 3.8 49.4 74.0 -24.6 Peak Vertical 06 4876.0 67.4 -8.6 58.8 74.0 -15.2 Peak Horizontal 4876.0 62.4 -8.6 53.8 54.0 -0.2 Average Horizontal 7307.0 54.2 -5.7 48.5 74.0 -25.5 Peak Horizontal 7307.0 51.0 -5.7 45.3 54.0 -8.7 Average Horizontal 11072.5 49.5 -2.9 46.6 74.0 -27.4 Peak Horizontal 4876.0 62.8 -8.6 54.2 74.0 -19.8 Peak Vertical 4876.0 59.7 -8.6 51.1 54.0 -2.9 Average Vertical 7315.5 50.8 -5.7 45.1 74.0 -28.9 Peak Vertical 13257.0 49.1 -1.0 48.1 74.0 -25.9 Peak Vertical 11 4927.0 63.7 -8.5 55.2 74.0 -18.8 Peak Horizontal 4927.0 61.5 -8.5 53.0 54.0 -1.0 Average Horizontal 7383.5 52.9 -5.7 47.2 74.0 -26.8 Peak Horizontal 15518.0 45.7 3.9 49.6 74.0 -24.4 Peak Horizontal 4927.0 61.1 -8.5 52.6 74.0 -21.4 Peak Vertical 4927.0 60.6 -8.5 52.1 54.0 -1.9 Average Vertical 7392.0 50.7 -5.6 45.1 74.0 -28.9 Peak Vertical 15781.5 46.9 3.7 50.6 74.0 -23.4 Peak Vertical Note: Measure Level (dBμV/m) = Reading Level (dBμV) + Factor (dB/m) Factor (dB/m) = Cable Loss (dB) + Antenna Factor (dB/m) - Pre_Amplifier Gain (dB) Report No.: 2203RSU090-U1 67 of 149 Test Site SIP-AC3 Test Engineer Mero Zhou Test Date 2022/04/18 Test Mode 802.11g Remark 1. Average measurement was not performed if peak level lower than average limit. 2. Other frequency was 20dB below limit line within 1-18GHz, there is not show in the report. Test Channel Frequency (MHz) Reading Level (dBμV) Factor (dB/m) Measure Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector Polarization 01 4816.5 55.2 -8.7 46.5 74.0 -27.5 Peak Horizontal 8284.5 47.6 -4.2 43.4 74.0 -30.6 Peak Horizontal 11072.5 49.1 -2.9 46.2 74.0 -27.8 Peak Horizontal 4825.0 55.9 -8.7 47.2 74.0 -26.8 Peak Vertical 7664.0 49.4 -5.5 43.9 74.0 -30.1 Peak Vertical 11888.5 49.4 -2.9 46.5 74.0 -27.5 Peak Vertical 06 4867.5 68.9 -8.6 60.3 74.0 -13.7 Peak Horizontal 4867.5 58.4 -8.6 49.8 54.0 -4.2 Average Horizontal 7307.0 68.2 -5.7 62.5 74.0 -11.5 Peak Horizontal 7307.0 59.5 -5.7 53.8 54.0 -0.2 Average Horizontal 10783.5 48.7 -2.6 46.1 74.0 -27.9 Peak Horizontal 4876.0 65.3 -8.6 56.7 74.0 -17.3 Peak Vertical 4876.0 56.9 -8.6 48.3 54.0 -5.7 Average Vertical 7315.5 63.6 -5.7 57.9 74.0 -16.1 Peak Vertical 7315.5 56.3 -5.7 50.6 54.0 -3.4 Average Vertical 12186.0 52.3 -3.2 49.1 74.0 -24.9 Peak Vertical 11 4825.0 52.1 -8.7 43.4 74.0 -30.6 Peak Horizontal 7613.0 49.5 -5.4 44.1 74.0 -29.9 Peak Horizontal 11327.5 47.3 -2.8 44.5 74.0 -29.5 Peak Horizontal 4272.5 50.0 -9.1 40.9 74.0 -33.1 Peak Vertical 7715.0 49.9 -5.3 44.6 74.0 -29.4 Peak Vertical 11642.0 49.1 -2.9 46.2 74.0 -27.8 Peak Vertical Note: Measure Level (dBμV/m) = Reading Level (dBμV) + Factor (dB/m) Factor (dB/m) = Cable Loss (dB) + Antenna Factor (dB/m) - Pre_Amplifier Gain (dB) Report No.: 2203RSU090-U1 68 of 149 Test Site SIP-AC3 Test Engineer Mero Zhou Test Date 2022/04/18 Test Mode 802.11n-HT20 Remark 1. Average measurement was not performed if peak level lower than average limit. 2. Other frequency was 20dB below limit line within 1-18GHz, there is not show in the report. Test Channel Frequency (MHz) Reading Level (dBμV) Factor (dB/m) Measure Level (dBμV/m) Limit (dBμV/m) Margin (dB) Detector Polarization 01 4825.0 55.4 -8.7 46.7 74.0 -27.3 Peak Horizontal 7638.5 50.7 -5.4 45.3 74.0 -28.7 Peak Horizontal 11625.0 49.2 -3.0 46.2 74.0 -27.8 Peak Horizontal 4825.0 53.8 -8.7 45.1 74.0 -28.9 Peak Vertical 7621.5 48.6 -5.4 43.2 74.0 -30.8 Peak Vertical 11429.5 49.4 -2.8 46.6 74.0 -27.4 Peak Vertical 06 4876.0 67.1 -8.6 58.5 74.0 -15.5 Peak Horizontal 4876.0 57.9 -8.6 49.3 54.0 -4.7 Average Horizontal 7307.0 68.9 -5.7 63.2 74.0 -10.8 Peak Horizontal 7307.0 59.5 -5.7 53.8 54.0 -0.2 Average Horizontal 15968.5 46.0 4.0 50.0 74.0 -24.0 Peak Horizontal 4876.0 62.9 -8.6 54.3 74.0 -19.7 Peak Vertical 4876.0 56.2 -8.6 47.6 54.0 -6.4 Average Vertical 7315.5 63.9 -5.7 58.2 74.0 -15.8 Peak Vertical 7315.5 56.5 -5.7 50.8 54.0 -3.2 Average Vertical 12194.5 51.3 -2.9 48.4 74.0 -25.6 Peak Vertical 12194.5 41.6 -2.9 38.7 54.0 -15.3 Average Vertical 11 4927.0 53.3 -8.5 44.8 74.0 -29.2 Peak Horizontal 7392.0 52.0 -5.6 46.4 74.0 -27.6 Peak Horizontal 11650.5 48.7 -2.9 45.8 74.0 -28.2 Peak Horizontal 4927.0 52.0 -8.5 43.5 74.0 -30.5 Peak Vertical 8403.5 48.0 -4.3 43.7 74.0 -30.3 Peak Vertical 12194.5 49.0 -2.9 46.1 74.0 -27.9 Peak Vertical Note: Measure Level (dBμV/m) = Reading Level (dBμV) + Factor (dB/m) Factor (dB/m) = Cable Loss (dB) + Antenna Factor (dB/m) - Pre_Amplifier Gain (dB) Report No.: 2203RSU090-U1 69 of 149…

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Report No.: 2203RSU090-U1 147 of 149 Site: SIP-SR2 Time: 2022/05/07 - 14:08 Limit: FCC_Part15.207_CE_AC Power Engineer: Augleo Wang Probe: SIP-SR2-ENV216_101684_E Polarity: Neutral EUT: Dual-Band Wireless AX1800 Gigabit Ethernet Gateway Power: AC 120V/60Hz Test Mode: Transmit by 802.11n-HT20 at channel 2437MHz No Flag Mark Frequency (MHz) Measure Level (dBμV) Reading Level (dBμV) Margin (dB) Limit (dBμV) Factor (dB) Type 1 0.157 41.738 32.000 -23.883 65.621 9.738 QP 2 0.157 30.838 21.100 -24.783 55.621 9.738 AV 3 0.190 37.925 28.180 -26.111 64.037 9.746 QP 4 0.190 28.340 18.594 -25.697 54.037 9.746 AV 5 0.566 40.858 31.034 -15.142 56.000 9.823 QP 6 * 0.566 36.469 26.646 -9.531 46.000 9.823 AV 7 1.234 23.573 13.699 -32.427 56.000 9.874 QP 8 1.234 15.718 5.845 -30.282 46.000 9.874 AV 9 7.898 31.010 20.471 -28.990 60.000 10.539 QP 10 7.898 22.223 11.684 -27.777 50.000 10.539 AV 11 15.750 33.910 21.797 -26.090 60.000 12.112 QP 12 15.750 27.955 15.843 -22.045 50.000 12.112 AV Note 1: " *", means this data is the worst emission level. Note 2: Measure Level (dBμV) = Reading Level (dBμV) + Factor (dB) Note 3: Factor (dB) = Cable Loss (dB) + LISN Factor (dB) Report No.: 2203RSU090-U1 148 of 149 Appendix B – Test Setup Photograph Refer to “2203RSU090-UT” file. Report No.: 2203RSU090-U1 149 of 149 Appendix C – EUT Photograph Refer to “2203RSU090-UE” file. The End

HL Antenna Proposal for Zyxel project --EX2210-T0 test Report © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL Date: 8 th of April 2020 Prepared By: tom HL TECHNOLOGIES •Brief Project Description –Project Name: EX2210-T0 –Category: WiFi AP •The AP supports IEEE 802.11 a/b/g/n/ac /ax wireless standards •HL Technologies developed a dedicated antenna system proposal for Zyxel EX2210-T0 •Antenna Configuration: –2 x 2G4 WLAN antennas –2 x 5G WLAN antennas •WLAN antennas in HL proposal are –Off-board –PCB-type –Cable-fed •This document shows test results for HL antenna solution test in the machine. model received from Zyxel Introduction © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 06/06/2022 2 HL TECHNOLOGIES •Antenna Configuration of zyxel project –2 x 2G4 WLAN antennas –2 x 5G WLAN antennas •Basic Passive Requirements –RL for each antennas > 10dB –Isolation between all antennas •> 20dB @ 2.4GHz band •> 20dB @ 5GHz band. –Efficiency >60% Requirements Review © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 06/06/2022 3 HL TECHNOLOGIES 06/06/2022 © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 4 HL Antenna System Proposal HL TECHNOLOGIES HL Antenna System © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 06/06/2022 5 Zyxel project +Y +Z +X A1-PCB_2G4 A2-on-board_5G A3-PCB_5G A4-PCB_2.4G HL TECHNOLOGIES 06/06/2022 © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 6 S-parameters •Calibration plane is at the locations of Feeding Port HL TECHNOLOGIES Return Loss of WLAN Antennas © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 06/06/2022 7 Return loss （dB） A1_2G4 A2_5G A3_5G A4_2.4G 2400MHz 11.5 / / 14.1 2500MHz 11.3 / / 15.4 5150MHz / 12.2 11.8 / 5850MHz / 11.2 14.5 / 0 5 10 15 20 25 30 35 40 2.02.32.52.83.03.33.53.84.04.34.54.85.05.35.55.86.0 Return Loss (dB) Frequency (GHz) A1-PCB2.4G A2-on-board-5G A3-PCB-5G A4-PCB-2.4G HL TECHNOLOGIES Isolation Between all WLAN Antennas © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 06/06/2022 8 Isolation （dB） A1-A2 A1-A3 A1-A4 A2-A3 A2-A4 A3-A4 2400M Hz 44.7 36.2 46.1 46.8 37.2 26.4 2500M Hz 44.5 34.3 48.4 47.2 40.3 25.3 5150M Hz 29.7 53.3 37.8 41.5 31.6 27.5 5850M Hz 26.7 37.0 32.6 31.5 27.1 36.2 0 5 10 15 20 25 30 35 40 45 50 2.02.53.03.54.04.55.05.56.0 Isolation (dB) Frequency (GHz) A1-A2 A1-A3 A1-A4 A2-A3 A2-A4 A3-A4 HL TECHNOLOGIES 06/06/2022 © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 9 Radiated Performance •Calibration plane is at the locations of Feeding Port •Realized Efficiency •Peak Realized Gain HL TECHNOLOGIES Realized Efficiency – WLAN Antennas © Copyright 2019 HL Technologies. All Rights Reserved. PROPRIETARY AND CONFIDENTIAL 06/06/2022 10 Frequency/MHz A1_PCB _2G4 A2_onbo ard_5G A3_PCB_ 5G A4_PCB_ 2.4G 2400 69% / / 71% 2450 71% / / 76% 2500 68% / / 74…

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