FCC ID: A3LRT4423-48A RRU (RT4423)

/ SAMSUNG Product : RRU (RT4423) Model :RT4423-48A 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Korea MADE IN KOREA Rating :=:-48V;4.8A FCC ID : A3LRT4423-48A This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. RAINPROOF is @) i Ne usreo TE:

/ SAMSUNG Product : RRU (RT4423) Model :RT4423-48A Yen Phong 1 Industrial Zone, Yen Trung Commune, Yen Phong District, Bac Ninh Province, Vietnam MADE IN VIETNAM 48V;4.8A FCCID : A3LRT4423-48A This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. RAINPROOF is @) Fhe

\ LISTED ITE,

SAMSUNG Electronics CO., Ltd.

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Date: Sep 19, 2022 To whom it may concern:

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). In authorizing < HCT CO., LTD. > as our agent, we still recognize that we are responsible to:

a) b) c) d) e) f) g) h) i) comply with the relevant provisions of the certification program;

make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints;

make claims regarding certification only in respect of the scope for which certification has been granted;

do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized;

upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division;

use certification only to indicate the products are certified as being in conformity with specified standards;

endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner;

ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division;

keep a record of all complaints made known to the us relating to the products compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested;

j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification;

k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Jongin Kim / Principal Research Engineer SAMSUNG Electronics Co.,Ltd

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea REMARK:

1 2 This authorization letter will be sent along with your application when filing with the Certification Division. Please follow the format and type it on company letterhead and send original to us.

SAMSUNG Electronics CO., Ltd.

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Model Number : RT4423-48A To whom it may it concern:

I hereby appoint Jongin Kim to sign letters and applications for any filings with regulatory agencies on our behalf, and to receive and exchange data between our company, the agents company and the agency in connection with certification for any products that our company owns or manufactures. Sincerely,

Jenni Chun / General Manager Samsung Electronics America, Inc. Address: 19 Chapin Rd., Building D Pine Brook, NJ 07058 Tel: 1-800-SAMSUNG (1-800-726-7864) Date: September 21, 2022

SAMSUNG Electronics CO., Ltd.

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Date: Sep 19, 2022 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 RE: Request of Confidentiality for FCC ID: A3LRT4423-48A To Whom It May Concern:

Pursuant to Sections 0.457 and 0.459 of the Commissions Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, SAMSUNG Electronics Co., Ltd.. hereby requests confidentiality and treatment of certain information accompanying this application. The 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. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give SAMSUNG Electronics Co., Ltd. temporary confidentiality of commercially sensitive information prior to product release. The requested Confidential and Temporary Confidential exhibits are listed as follows:

CONFIDENTIAL AND SHORT-TERM CONFIDENTIAL LIST Exhibit 1 2 3 4 5 6 7 8 Description Block Diagram Operational Descriptions Parts Lists and Tune-Up Procedure Schematics Internal Photos Users Manual External Photos Test-Setup Photos CONFIDENTIAL SHORT-TERM CONFIDENTIAL The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely, Jongin Kim / Principal Research Engineer SAMSUNG Electronics Co.,Ltd.

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea

SAMSUNG Electronics CO., Ltd.

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea Sept 19, 2022 Application Examiner / Reviewing Engineer Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 RE: Request of Long-Term Confidentiality for FCC ID: A3LRT4423-48A To Whom It May Concern, This is a request to hole the internal photos and user manual for FCC ID: A3LRT4423-48A under long term confidentiality. The transmitter is a Base Station where access is controlled and only available to trained personnel. Please note that the internal photos are being asked to be confidential under the FCC guidelines that this is a non-consumer device (Base Station) and is inaccessible to the general public due to the location of the device and it is only serviceable by the licensee or his designated technicians. The user manual is being requested to be confidential under the FCC guidelines that the manual is very technical and is not provided to the general public. The user manual contains proprietary information required for trained installers to commission the base station. The user manual will be used by the licensee or his designated technicians only. Having the subject information easily available to competitors would negate the advantage we have achieved by developing this product. The requested Long-Term Confidential exhibits are listed as follows:

LONG-TERM CONFIDENTIAL LIST Exhibit Description LONG-TERM CONFIDENTIAL 1 2 Users Manual Internal Photos Sincerely, Jong-in Kim / Principal Engineer SAMSUNG Electronics Co.,Ltd.

(Maetan-dong) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Republic of Korea