FCC ID: WBK-RU4370 Remote Radio Unit

RU4370 User Manual RU4370 User Manual 4T4R Digital Radios High Output Power 5G NR Compliant Outdoor Rated Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual Copyright BTI 2020. All rights reserved. This document is protected by international copyright law and may not be reprinted, reproduced, copied or utilized in whole or in part by any means including electronic, mechanical, or other means without the prior written consent of BTI Wireless. Whilst reasonable care has been taken by BTI to ensure the information contained herein is reasonably accurate, BTI Wireless shall not, under any circumstances be liable for any loss or damage (direct or consequential) suffered by any party because of the contents of this publication or the reliance of any party thereon or any inaccuracy or omission therein. The information in this document is therefore provided on an as is basis without warranty and is subject to change without further notice and cannot be construed as a commitment by BTI Wireless. The products mentioned in this document are identified by the names, trademarks, service marks and logos of their respective companies or organizations and may not be used in any advertising or publicity or in any other way whatsoever without the prior written consent of those companies or organizations and BTI Wireless. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual Content General..................................................................................................................................................................................... 4 Warnings.......................................................................................................................................................................... 4 Site Considerations...........................................................................................................................................................4 Environmental.................................................................................................................................................................. 4 Warning Marks................................................................................................................................................................. 6 Preparation...............................................................................................................................................................................8 Unpacking and Inspection................................................................................................................................................8 Tools................................................................................................................................................................................. 8 Installation of the RU4370....................................................................................................................................................... 9 RU4370 Accessories......................................................................................................................................................... 9 Wall Installation (Back on the Wall)...............................................................................................................................10 Wall Installation (Side on the Wall)................................................................................................................................15 Pole Installation..............................................................................................................................................................19 Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual General The RU4370 components are designed for maximum safety and reliability when they are installed, used, and maintained by trained and qualified technicians in accordance with the procedures and instructions contained in this manual. To ensure the safe operation of your system, always follow the safety and operational recommendations in this manual. Warnings RU4370 is not a consumer product. Please install and use RU4370 in accordance with the instructions. Before installing or modifying any RU4370 equipment, read and fully understand the entire instructions in this guide. Only qualified personnel are authorized to install and maintain the RU4370. Changes or modifications to the RU4370 equipment not expressly approved by the manufacturer could void the product warranty and the users authority to operate the equipment. Follow Electro Static Discharge precautions to avoid any damage to PCB, PSU, etc. Keep equipment powered-off during installing or modifying. Low path loss cables connected to antennas are highly recommended. Antenna gain should not exceed 14 dBi. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. Note: Only authorized person can enter the area where the antenna is installed. And the person is fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. Awareness of the potential for RF exposure in a workplace or similar environment can be provided through specific training as part of a RF safety program Site Considerations The system delay should be taken into consideration when there are neighboring BTS sites with overlapping in coverage. Pick an ideal easy-to-reach location for installation convenience. Verify that there is a minimum of a 200cm radius of space around RU4370 system equipment for the convenience of maintenance and on-site inspection. Environmental Humidity and temperature have adverse efforts on the reliability of the RU4370 system. Therefore, it is highly recommended to install the equipment in locations with stable humidity, temperature, and ventilating. The equipment has to operate within the following humidity level and temperature range:

Copyright 2021 BTI WIRELESS All rights reserved. Maximum humidity: 100%

Temperature range: -40 to 55 RU4370 User Manual Copyright 2021 BTI WIRELESS All rights reserved. Warning Marks The warning marks on the equipment shell should be kept clean, readable and identifiable. RU4370 User Manual ALWAYS disconnect all lines and power connections before servicing or disassembling this equipment. NEVER touch the surface after the devices power on. For performance and safety reasons, NEVER disassemble and remodel the devices. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual Preparation Unpacking and Inspection Unpack and inspect the packages as follows:

1. Open the shipping packages carefully for each unit from the protective packing sponge. 2. Ensure that all equipment and accessories have been delivered. 3. Ensure that all equipment and accessories have no damage. If there is any damage, contact your BTI service agent. Tools Electric drill, cross head screwdriver, side cutters, ladder, and other tools are needed for RU4370 installation which is not offered from BTI for now. Customers to provide these tools themselves. Drilling Machine Pen Allen Wrench T5 Combination Nut M10 and M12 Spanner 17mm Copyright 2021 BTI WIRELESS All rights reserved. Installation of the RU4370 RU4370 Accessories RU4370 User Manual Figure 1. RU4370 Accessories Copyright 2021 BTI WIRELESS All rights reserved. Wall Installation (Back on the Wall) 1. Attach and fasten the handle to the side of RU4370 with screws M614 using T5 Wrench. RU4370 User Manual 2. Attach and fasten the Bracket I to the back of RU4370 with screws M614 using T5 Wrench. Copyright 2021 BTI WIRELESS All rights reserved. 3. Mark the position of the drilling holes in the mounting Bracket II. Note: R=13mm. RU4370 User Manual 4. Drill 4 holes at the marked positions. Note: H=70mm Copyright 2021 BTI WIRELESS All rights reserved. 5. Attach the dowels, expansion screws or the like and fasten the Bracket II to the wall. Tips: use Bracket II as a reference to control each devices separation distance before hanging and locking RU4370 up. RU4370 User Manual 6. Hang the RU4370 on the mounting bracket II and fasten with nuts M10. Copyright 2021 BTI WIRELESS All rights reserved. 7. Fasten the Bracket I and II with screws M614. RU4370 User Manual 8. Connect and lock the power cable at the RU4370 rear side Copyright 2021 BTI WIRELESS All rights reserved. 9. Connect and screw the ground cable at the RU4370s left side RU4370 User Manual Copyright 2021 BTI WIRELESS All rights reserved. Wall Installation (Side on the Wall) RU4370 User Manual 1. Attach and fasten the handle to the side of RU4370 with screws M614 using T5 Wrench. Figure 2. 2. Attach and fasten the Bracket I to the left side of RU4370 with screws M614 using T5 Wrench. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual 3. Mark the position of the drilling holes in the mounting Bracket II. Note: R=13mm. 4. Drill 4 holes at the marked positions. Note: H=70mm. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual 5. Attach the dowels, expansion screws or the like and fasten the Bracket II to the wall. Tips: use Bracket II as a reference to control each devices separation distance before hanging and locking RU4370 up. 6. Hang the RU4370 on the mounting bracket II and fasten with nuts M10. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual 7. Fasten the Bracket I and II with screws M614. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual Install the handle and Bracket I to the back of RU4370. Install the bracket II and Bracket III to the pole. Pole Installation 1. 2. 3. Hang the RU4370 on the mounting bracket and fasten with nuts M10. 4. Connect the ground cable and power cable. Note: The diameter of Pole shall not be over 110mm or less than 55mm. Copyright 2021 BTI WIRELESS All rights reserved. RU4370 User Manual 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. Note: This product has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This product generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this product does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Copyright 2021 BTI WIRELESS All rights reserved.

Product Name: Remote Radio Unit Model: RU4370 Input: 48V=3A, Manufacturer: 8TI Wireless IStates Address: 11205 Knott Avenue Suite A, Cypress, CA 90630 United c FE Made in China FCC ID: WBK-RU4370 WARNING! This is NOT a CONSUMER device. Its designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC License to operate this, device. Unauthorized use may result in significant forfeiture penalties, including penalties, in excess of $100,000 for each continuing violation, 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.

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name BTI Wireless Applicant Declaration Address Grantee Code FCC ID Authorized Contact Name Contact Email Contact Phone 14600 Industry Circle La Mirada California 90630 United States. WBK WBKRU4370 Richard Xu richard.xu@btiwireless.com

+1-214-850-1676 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare;

a) b) c) d) e) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for:

labeling the equipment with the exact FCC ID as specified in this application,

(1)

(2) compliance statement labeling pursuant to the applicable rules,

(3) compliance of the equipment with the applicable technical rules, if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCCs technical requirements. in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. in accordance with ISO17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements.

(1)

(2)

(3) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. the Applicant shall, upon request by SGS, at the Applicants expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is 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. 862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a party for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Date:2023/01/04 Applicant Signature:

Print Name:

Title:

*NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database Richard Xu Applicant Declaration Rev:0.0

BTI Wireless TO:

Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: WBK-RU4370 To whom it may concern:

Date: 2023-03-24 We, the undersigned, hereby authorize Parlam Zhan to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent 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). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with BTI Wireless This authorization is valid until further written notice from the applicant. Name (Printed): Ron Poulin Title: VP of Business Development Signature:

On behalf of Company: BTI Wireless Telephone: +1 250 882 8082

BTI Wireless To:

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: BTI Wireless 11205 Knott Avenue Suite A, Cypress, CA 90630 United States Regarding:

Confidentiality Request regarding application for FCC ID: WBK-RU4370 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commissions rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions Tune-up BOM The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Printed Name (on file with the FCC associated with the Grantee Code): Ron Poulin Title: VP, Business Development Company Name: BTI Wireless Corning Restricted

< BTI Wireless >

Date 2023-01-04 To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States Subject: FCC Class II Permission Change Request for FCC ID: WBKRU4370 Dear Sir/Madam, This is to request a Class II Permission Change Request for FCC ID: WBKRU4370, originally granted on 2022-08-26. The Major change filed under this application is only the software is different (supplementary test N78, has no effect on SAS process), the hardware is unchanged. If you have any questions regarding this application, please free to contact me. Yours Sincerely, Signature Contact name: Richard Xu Company Name: BTI Wireless

UNITED STATES DESIGNATED AGENT LETTER Date: 2023/3/24 TO:

Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant Company Name: BTI Wireless Grantee Code:

Contact Name:

WBK Ron Poulin Address:

11205 Knott Avenue Suite A, Cypress, CA 90630 United States City/Province/Zip: Cypress/ California/ 90630 Telephone:

Fax:

Email:

ron.poulin@btiwireless.com

+1 250 882 8082 U.S. designated agent Company Name: BTI Wireless Contact Name:

Address:

Ron Poulin 11205 Knott Avenue Suite A, Cypress, CA 90630 United States City/Province/Zip: Cypress/ California/ 90630 Telephone:

Fax:

Email:

FRN:

+1 250 882 8082 ron.poulin@btiwireless.com 0033462680 Applicable Equipment: FCC ID: < WBK-RU4370 >

ATTN: Director of Certification:

We, < BTI Wireless > and < BTI Wireless > understand and acknowledge the applicants consent and the designated agents obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, < BTI Wireless > and < BTI Wireless > acknowledge the applicants acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Applicant U.S. designated agent Name (Printed): Ron Poulin Name (Printed): Ron Poulin Title: VP of Business Development Signature:

Title: VP of Business Development Signature:

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name BTI Wireless Applicant Declaration Address Grantee Code FCC ID Authorized Contact Name Contact Email Contact Phone 11205 Knott Avenue Suite A, Cypress, CA 90630 United States WBK WBK-RU4370 Ron Poulin ron.poulin@btiwireless.com

+1 250 882 8082 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare;

a) b) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for:

labeling the equipment with the exact FCC ID as specified in this application,

(1)

(2) compliance statement labeling pursuant to the applicable rules,

(3) compliance of the equipment with the applicable technical rules, c) d) e) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCCs technical requirements. in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements.

(1)

(2)

(3) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. the Applicant shall, upon request by SGS, at the Applicants expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) g) neither the Applicant nor any party to the application is 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. 862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a party for these purposes. the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List

[BTI Wireless] (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules.

[BTI Wireless] (the applicant) certifies that, as of the date of the filing of the application, the applicant [ is not] identified on the Covered list, established pursuant to 1.50002, as an entity producing covered equipment. Applicant Signature:

Print Name:

Ron Poulin Title:

VP of Business Development Date:

2023-03-24

*NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021