W6UNH25FBTDDDAS

Confidential & Proprietary 1/46 ALLIANCE_N20 User Manual Document Reference: Version: V1.5 Document Status: Release 2 Issue Date: July 2, 2021 Author: Yong Hee Kim Department: R&D Division Team 2 Authorizing Manager: Hyun Seok Chae Confidential & Proprietary 2/46 REVISION HISTORY Version Issue Date No. of Pages Initials Details of Revision Changes V 1.0 Aug. 20, 2014 Original V 1.1 Aug. 2015 Revision Add 2.5TDD Information V1.2 Jan 16, 2017 Update Updated RDU CPU Firmware V1.3 Dec 7, 2017 Update Added new products V1.4 May 11, 2020 Update Added new products V1.5 July 2, 2021 Update Added new products Technical Support SOLiD serial numbers must be available to authorize technical support and/or to establish a return authorization for defective units. The serial numbers are located on the back of the unit, as well as on the box in which they were delivered. Additional support information may be obtained by accessing the SOLiD Tehcnology, Inc. website at www.solid.co.kr or send email at [email protected] This manual is produced by Global Business Division Business Team Printed in Korea. Confidential & Proprietary 3/46 Contents Section1 Safety & Certification Notice ......................................................................... 6 Section2 System configuration and Functions ............................................................ 10 2.1 HROU (High power Remote Optic Unit) ............................................................. 11 2.1.1 Specifications of HROU ............................................................................ 12 2.1.2 Block Diagram of HROU ........................................................................... 16 2.1.2.1 HMRU block diagram .............................................................................. 16 2.1.2.2 HROU inner look ..................................................................................... 17 2.1.2.3 HROU part list ......................................................................................... 18 2.1.3 Function by unit ...................................................................................... 19 2.1.3.1 High Remote Drive Unit (HRDU) ............................................................... 19 2.1.3.2 Remote Power Supply Unit ( RPSU) .......................................................... 24 2.1.3.3 Remote Optic(ROPTIC) ............................................................................ 25 2.1.3.4 Remote Central Processor Unit (RCPU) ..................................................... 25 2.1.3.5 Multiplexer ............................................................................................. 26 2.1.3.6 System interface unit (SIU) ...................................................................... 26 2.1.4 Bottom of HROU ..................................................................................... 27 2.1.4.1 Functions ............................................................................................... 27 Section3 System Installation ..................................................................................... 31 3.1 HROU Installation ............................................................................................ 31 3.1.1 Tool s ......................................................................................................... 31 3.1.2 HROU Enclosure installation ....................................................................... 32 3.1.3 HROU Wall Mount Installation .................................................................... 33 3.1.4 HROU components .................................................................................... 34 3.1.5 HROU Power Cabling .................................................................................. 36 3.1.6 HROU Ground cabling ................................................................................ 37 3.1.7 HROU Optical Cable ................................................................................... 39 3.1.8 HROU ALM IN/OUT Port cabling ................................................................. 41 3.1.9 Mounting of HRDU ..................................................................................... 43 Confidential & Proprietary 4/46 Contents of Figure Figure 3. HROU consists of 2 unit ........................................................................ 11 Figure 4. HROU outer Look ................................................................................. 12 Figure 5. HMRU Block diagram ........................................................................... 16 Figure 6. Inside of Remote Unit .......................................................................... 17 Figure 7. HRDU Outer Look ................................................................................ 19 Figure 8. AC-DC RPSU Outer Look ....................................................................... 24 Figure 9. DC-DC RPSU Outer Look ....................................................................... 24 Figure 10. R OPTIC Outer Look ........................................................................... 25 Figure 11. AC-DC RPSU Outer Look ..................................................................... 26 Figure 12. Multiplexer Outer Look ...................................................................... 26 Figure 13. SIU Outer Look .................................................................................. 27 Figure 14. The Bottom Look of HROU and CU options ........................................... 28 Figure 15. The panel for support CU Option3 with 4 antenna ports ........................ 28 Figure 16. The name of each port on the bottom of HROU .................................... 28 Figure 17. How to install ROU ............................................................................. 32 Figure 18. Dimension used to install HROU on the WALL ....................................... 33 Figure 19. Proc…

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SOLiD, Inc. 10,9th Floor, SOLiD Space 220 Pangyoyeok-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea 463-400 Tel : +82-31-627-6290 Fax : +82-31-627-6209 ____________________________________________________________________________ Date: July 08, 2021 Fed eral Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Subject: Letter for Warning Label Message FCC ID: W6UNH25FBTDD To Whom It May Concern: Warning label messages will be also shown in online and point-of-sale marketing materials and on outside packaging of device per KDB 935210 D02 Signal Boosters Certification v04r02 in Section IV clause (d) . Best Regards Company Name : SOLiD, Inc. Company Address : 10,9th Floor, SOLiD Space, Pangyoyeok-ro 220, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea Contact Person Name/Title (in print) : Yong chul Kim / Manager E-mail : [email protected]

Date : Nov. 9, 2017 Rev : 2.3 HACS-F004 FCC Agent Authorization Letter HCT America LLC ([email protected]) 1726 Ringwood Avenue San Jose, CA 95131 TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 1 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC FCC Agent Authorization Letter Date : Nov. 9, 2017 Rev : 2.3 HACS-F004 FCC Agent Authorization Letter HCT America LLC ([email protected]) 1726 Ringwood Avenue San Jose, CA 95131 TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 2 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC REVISION TABLE Rev Description of Change Date Approved 1.0 Original Release(Obsolete) 06/14/2012 QM 2.0 Updated template(Obsolete) 10/01/2012 QM 2.1 Updated address(Obsolete) 01/10/2014 QM 2.2 Updated address 11/18/2016 QM 2.3 Fixed Typo “Agent” 11/09/2017 QM SOLiD, Inc. HACS-F004 FCC Agent Authorization Letter Rev : 2.3 DATE : July 8, 2021 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To whom it may concern: Subject : FCC Agent Authorization Letter for FCC ID : W6UNH25FBTDD We, the undersigned, hereby authorize HCT CO., LTD. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by HCT CO., LTD. on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). We recognize that we are still responsible for the terms and conditions outlined in the HCT America Client Services Agreement. This authorization is valid until further written notice from the applicant. Sincerely, Signed by: Company Name : SOLiD, Inc. Company Address : 10,9th Floor, SOLiD Space, Pangyoyeok-ro 220, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea Contact Person Name/Title (in print) : Yong Chul Kim/Team Manager

Date : Nov. 09, 2017 Rev : 3.0 HACS-F003 FCC Confidentiality Request Letter HCT America LLC ([email protected]) 1726 Ringwood Avenue San Jose, CA 95131 TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 1 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC FCC Confidentiality Request Letter Date : Nov. 09, 2017 Rev : 3.0 HACS-F003 FCC Confidentiality Request Letter HCT America LLC ([email protected]) 1726 Ringwood Avenue San Jose, CA 95131 TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 2 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC REVISION TABLE Rev Description of Change Date Approved 1.0 Original Release(Obsolete) 06/14/2012 QM 2.0 Updated template(Obsolete) 10/01/2012 QM 2.1 Updated address(Obsolete) 01/10/2014 QM 2.2 Updated address 11/18/2016 QM 3.0 Updated LTC and STC Confidentiality table 11/09/2017 QM SOLiD, Inc. HACS-F003 FCC Confidentiality Request Letter Rev : 3.0 DATE : 7/8/2021 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD SUBJECT : Request for Confidentiality for FCC ID : W6UNH25FBTDD We hereby request confidential treatment of the information accompanying this application as outlined below: LONG-TERM AND SHORT-TERM CONFIDENTIAL LIST LONG-TERM CONFIDENTIAL Exhibit Description 1 Block Diagram 2 Operational Description 3 Parts List 4 Schematics 5 Tune-up Procedure SHORT-TERM CONFIDENTIAL (180 DAYS) 6 External Photos 7 Internal Photos 8 Test-Setup Photos 9 User’s Manual The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Signed by: Company Name : SOLiD, Inc. Company Address : 10,9th Floor, SOLiD Space, Pangyoyeok-ro 220, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea Contact Person Name/Title (in print) : Yong Chul Kim/Manager

FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １ of 8 EXTERNAL PHOTOGRAPHS FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ２ of 8 ■ EXTERNAL PHOTO(LEFT) FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ３ of 8 ■ EXTERNAL PHOTO(RIGHT) FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ４ of 8 ■ EXTERNAL PHOTO(REAR) FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ５ of 8 ■ EXTERNAL PHOTO(FRONT) FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ６ of 8 ■ EXTERNAL PHOTO(BOTTOM) FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ７ of 8 ■ EXTERNAL PHOTO(TOP) FCC ID: W6UNH25FBTDD HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ８ of 8 ■ EXTERNAL PHOTO EUT FCC ID : W6UNH25FBTDD

Warning FCC FCC ID

FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １ of 14 INTERNAL PHOTOGRAPHS FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ２ of 14 [Main_PCB_TOP] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ３ of 14 [Main_PCB_Bottom] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ４ of 14 [Main_PBA_Top] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ５ of 14 [Main_PBA_Bottom] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ６ of 14 [HPA_Internal] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ７ of 14 [UDC_PCB_Top] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ８ of 14 [UDC_PCB_Bottom] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page ９ of 14 [UDC_PBA_Top] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １０ of 14 [UDC_PBA_Bottom] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １１ of 14 [UDC_Internal_Top] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １２ of 14 [UDC_Internal_Bottom] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １３ of 14 [UDC Top] FCC ID: W6UNH25FBTDD HCT CO., LTD 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA TEL : + 82 31 645 6300 FAX : + 82 31 645 6401 www.hct.co.kr Page １４ of 14 [UDC Bottom]

TEST REPORT FCC MPE Test for N20-HRDU_2500_FB_TDD APPLICANT SOLiD, Inc. REPORT NO. HCT-RF-2107-FC016 DATE OF ISSUE July 9, 2021 Tested by Kyung Soo Kang Technical Manager Jong Seok Lee F-TP22-03(Rev.04) HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383 KOREA Tel. +82 31 634 6300 Fax. +82 31 645 6401 1 / 8 The report shall not be reproduced except in full(only partly) without approval of the laboratory. F-TP22-03 (Rev. 04) Page 2 of 8 HCT Co., Ltd. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383 KOREA Tel. +82 31 634 6300 Fax. +82 31 645 6401 TEST REPORT FCC MPE Test for N20-HRDU_2500 _FB_TDD REPORT NO. HCT-RF-2107-FC016 DATE OF ISSUE July 09, 2021 Additional Model - ApplicantSOLiD, Inc. 10, 9th Floor, SOLiD Space, Pangyoyeok-ro 220, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-400, South Korea Eut Type Model Name DAS N20-HRDU_2500_FB_TDD FCC ID W6UNH25FBTDD The result shown in this test report refer only to the sample(s) tested unless otherwise stated. This test results were applied only to the test methods required by the standard. Report No. HCT-RF-2107-FC016 F-TP22-03 (Rev. 04) Page 3 of 8 REVISION HISTORY The revision history for this test report is shown in table. Revision No. Date of Issue Description 0 July 09, 2021 Initial Release The measurements shown in this report were made in accordance with the procedures indicated, and the emissions from this equipment were found to be within the limits applicable. I assume full responsibility for the accuracy and completeness of these measurements, and for the qualifications of all persons taking them. It is further stated that upon the basis of the measurements made, the equipment tested is capable of operation in accordance with the requirements of the FCC Rules under normal use and maintenance. If this report is required to confirmation of authenticity, please contact to www.hct.co.kr Report No. HCT-RF-2107-FC016 F-TP22-03 (Rev. 04) Page 4 of 8 RF Exposure Statement 1. Limit According to §1.1310, §2.1091 RF exposure is calculated. (B) Limits for General Population/Uncontrolled Exposures Frequency range (MHz) Electric field Strength (V/m) Magnetic field Strength (A/m) Power density (mW/cm²) Averaging time (minutes) 0.3 - 1.34 ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ 1.34 - 30 ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ 30 - 300 ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ 300 - 1500 ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ 1500 - 100.000 ̆ ̆ ̆ ̆ ̆ ̆ 614 824/f 27.5 ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ 1.63 2.19/f 0.073 ̆ ̆ ̆ ̆ ̆ ̆ ̆ ̆ *(100) *(180/ f²) 0.2 f/1500 1.0 30 30 30 30 30 F = frequency in MHz * = Plane-wave equivalent power density 2. Maximum Permissible Exposure Prediction Prediction of MPE limit at a given distance S = PG/4πR² S = Power density P = power input to antenna 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 Report No. HCT-RF-2107-FC016 F-TP22-03 (Rev. 04) Page 5 of 8 3. RESULTS 3.1 MPE calculation for standalone operations - BRS/EBS ˊ LTE 20 MHz (Downlink) Max Peak output Power at antenna input terminal 44.50 dBm Max Peak output Power at antenna input terminal 28183.83 mW Prediction distance 500.00 cm Prediction frequency 2550.44 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.4496 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 1.0000 mW/cm 2 - BRS/EBS ˊ 5G NR 20 MHz (Downlink) Max Peak output Power at antenna input terminal 44.50 dBm Max Peak output Power at antenna input terminal 28183.83 mW Prediction distance 500.00 cm Prediction frequency 2550.44 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.4496 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 1.0000 mW/cm 2 Report No. HCT-RF-2107-FC016 F-TP22-03 (Rev. 04) Page 6 of 8 - BRS/EBS ˊ 5G NR 40 MHz (Downlink) Max Peak output Power at antenna input terminal 44.50 dBm Max Peak output Power at antenna input terminal 28183.83 mW Prediction distance 500.00 cm Prediction frequency 2550.44 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.4496 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 1.0000 mW/cm 2 - BRS/EBS ˊ 5G NR 60 MHz (Downlink) Max Peak output Power at antenna input terminal 44.50 dBm Max Peak output Power at antenna input terminal 28183.83 mW Prediction distance 500.00 cm Prediction frequency 2550.44 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.4496 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 1.0000 mW/cm 2 - BRS/EBS ˊ 5G NR 80 MHz (Downlink) Max Peak output Power at antenna input terminal 44.50 dBm Max Peak output Power at antenna input terminal 28183.83 mW Prediction distance 500.00 cm Prediction frequency 2550.44 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.4496 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 1.0000 mW/cm 2 Report No. HCT-RF-2107-FC016 F-TP22-03 (Rev. 04) Page 7 of 8 - BRS/EBS ˊ 5G NR 100 MHz (Downlink) Max Peak output Power at antenna input terminal 44.50 dBm Max Peak output Power at antenna input terminal 28183.83 mW Prediction distance 500.00 cm Prediction frequency 2550.44 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.4496 mW/cm 2 MPE limit for uncontrolled exposure at prediction frequency 1.0000 mW/cm 2 Report No. HCT-RF-2107-FC016 F-TP22-03 (Rev. 04) Page 8 of 8 3.2 Simultaneous band emission conditions - BRS/EBS ˊ LTE 20 MHz (Downlink) Max Peak output Power at antenna input terminal 41.50 dBm Max Peak output Power at antenna input terminal 14125.38 mW Prediction distance 500.000 cm Prediction frequency 2640.00 MHz Antenna Gain(typical) 17.00 dBi Antenna Gain(numeric) 50.12 - Power density at prediction frequency( S) 0.22…

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TEST REPORT FCC Test for N20-HRDU_2500_FB_TDD APPLICANT SOLiD, Inc. REPORT NO. HCT-RF-2107-FC015 DATE OF ISSUE July 9, 2021 Tested by Kyung Soo Kang Technical Manager Jong Seok Lee F-TP22-03(Rev.04) HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383 KOREA Tel. +82 31 634 6300 Fax. +82 31 645 6401 1 / 73 The report shall not be reproduced except in full(only partly) without approval of the laboratory. F-TP22-03 (Rev. 04) Page 2 of 73 HCT Co., Ltd. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383 KOREA Tel. +82 31 634 6300 Fax. +82 31 645 6401 TEST REPORT FCC Test for N20-HRDU_2500 _FB_TDD REPORT NO. HCT-RF-2107-FC015 DATE OF ISSUE July 09, 2021 Additional Model - ApplicantSOLiD, Inc. 10, 9th Floor, SOLiD Space, Pangyoyeok-ro 220, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-400, South Korea Eut Type Model Name DAS N20-HRDU_2500_FB_TDD FCC ID W6UNH25FBTDD Output Power43 dBm Date of TestJune 25, 2021~ July 07, 2021 FCC Rule Parts:CFR 47 Part 2, Part 27 The result shown in this test report refer only to the sample(s) tested unless otherwise stated. This test results were applied only to the test methods required by the standard. Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 3 of 73 REVISION HISTORY The revision history for this test report is shown in table. Revision No. Date of Issue Description 0 July 09, 2021 Initial Release The measurements shown in this report were made in accordance with the procedures indicated, and the emissions from this equipment were found to be within the limits applicable. I assume full responsibility for the accuracy and completeness of these measurements, and for the qualifications of all persons taking them. It is further stated that upon the basis of the measurements made, the equipment tested is capable of operation in accordance with the requirements of the FCC Rules under normal use and maintenance. If this report is required to confirmation of authenticity, please contact to www.hct.co.kr Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 4 of 73 CONTENTS 1. GENERAL INFORMATION 5 1.1. APPLICANT INFORMATION 5 1.2. PRODUCT INFORMATION 5 1.3. TEST INFORMATION 5 2. FACILITIES AND ACCREDITATIONS 6 2.1. FACILITIES 6 2.2. EQUIPMENT 6 3. TEST SPECIFICATIONS 7 3.1. STANDARDS 7 3.2. ADDITIONAL DESCRIPTIONS ABOUT TEST 8 3.3. MEASUREMENTUNCERTAINTY 10 3.4. STANDARDS ENVIRONMENTAL TEST CONDITIONS 10 3.5. TEST DIAGRAMS 11 4. TEST EQUIPMENTS 12 5. TEST RESULT 13 5.1. AGC THRESHOLD 13 5.2. OUT-OF-BAND REJECTION 15 5.3. INPUT-VERSUS-OUTPUT SIGNAL COMPARISON 17 5.4. INPUT/OUTPUT POWER AND AMPLIFIER/BOOSTER GAIN 33 5.5. OUT-OF-BAND/OUT-OF-BLOCK EMISSIONS AND SPURIOUS EMISSIONS 40 5.6. RADIATED SPURIOUS EMISSIONS 70 6. Annex A_EUT AND TEST SETUP PHOTO 73 Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 5 of 73 1. GENERAL INFORMATION 1.1. APPLICANT INFORMATION Company Name SOLiD, Inc. Company Address 10, 9th Floor, SOLiD Space, Pangyoyeok-ro 220, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-400, South Korea 1.2. PRODUCT INFORMATION EUT Type DAS EUT Serial Number R25H0000001 Power Supply AC 110-220V, 50/60Hz DC -48V Frequency Range Band Name Downlink (MHz) BRS/EBS 2 496 ~ 2 690 Tx Output Power 43 dBm Antenna Peak Gain 17 dBi 1.3. TEST INFORMATION FCC Rule Parts CFR 47 Part 2, Part 27 Measurement Standards KDB 935210 D05 v01r04, KDB 971168 D01 v03r01, ANSI C63.26-2015 Test Location HCT CO., LTD. 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 6 of 73 2. FACILITIES AND ACCREDITATIONS 2.1. FACILITIES The SAC(Semi-Anechoic Chamber) and conducted measurement facility used to collect the radiated data are located at the 74, Seoicheon-ro 578beon-gil, Majang-myeon, Icheon-si, Gyeonggi-do, 17383, Rep. of KOREA. The site is constructed in conformance with the requirements of ANSI C63.4 (Version: 2014) and CISPR Publication 22. Detailed description of test facility was submitted to the Commission and accepted dated April 02, 2018 (Registration Number: KR0032). 2.2. EQUIPMENT Radiated emissions are measured with one or more of the following types of linearly polarized antennas: tuned dipole, bi-conical, log periodic, bi-log, and/or ridged waveguide, horn. Spectrum analyzers with pre-selectors and quasi-peak detectors are used to perform radiated measurements. Calibrated wideband preamplifiers, coaxial cables, and coaxial attenuators are also used for making measurements. All receiving equipment conforms to CISPR Publication 16-1, ˑRadio Interference Measuring Apparatus and Measurement Methods.˒ Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 7 of 73 3. TEST SPECIFICATIONS 3.1. STANDARDS The following tests were conducted on a sample of the equipment for the purpose of demonstrating compliance with FCC Part 2 and Par 27. Description Reference Results AGC threshold KDB 935210 D05 v01r04 3.2 Compliant Out-of-band rejection KDB 935210 D05 v01r04 3.3 Compliant Input-versus-output signal comparison §2.1049 Compliant Input/output power and amplifier/booster gain §2.1046, §27.50(h) Compliant Out-of-band/out-of-block emissions and spurious emissions §2.1051, §27.53(m) Compliant Spurious emissions radiated §2.1053 Compliant Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 8 of 73 3.2. ADDITIONAL DESCRIPTIONS ABOUT TEST Except for the following cases, EUT was tested under normal operating conditions. : Out-of-band rejection test requires maximum gain condition without AGC. This EUT is supported power supply both of AC and DC. Test results are only attached worst cases. The test was generally based on the method of KDB 935210 D05 v01r04 and only followed ANSI C63.26-2015 if there was no test method in KDB standard. EUT was tested with following modulated signals provide by applicant. Band Name Tested signals BRS/EBS United LTE 20 MHz 5G NR 20 MHz 5G NR 40 MHz 5G NR 60 MHz 5G NR 80 MHz 5G NR 100 MHz *Simultaneous filter suppo…

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Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 37 of 73 Plot data of PAPR PAPR / BRS/EBS / Downlink / LTE 20 MHz PAPR / BRS/EBS / Downlink / 5G NR 20 MHz Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 38 of 73 PAPR / BRS/EBS / Downlink / 5G NR 40 MHz PAPR / BRS/EBS / Downlink / 5G NR 60 MHz Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 39 of 73 PAPR / BRS/EBS / Downlink / 5G NR 80 MHz PAPR / BRS/EBS / Downlink / 5G NR 100 MHz Report No. HCT-RF-2107-FC015 F-TP22-03 (Rev. 04) Page 40 of 73 5.5. OUT-OF-BAND/OUT-OF-BLOCK EMISSIONS AND SPURIOUS EMISSIONS Test Requirements: §2.1051 Measurements required: Spurious emissions at antenna terminals: The radio frequency voltage or powers generated within the equipment and appearing on a spurious frequency shall be checked at the equipment output terminals when properly loaded with a suitable artificial antenna. Curves or equivalent data shall show the magnitude of each harmonic and other spurious emission that ca…

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