FCC ID: 2AEUPBHASG001 Amazon Sidewalk Bridge Pro by Ring

CC OTH 00578377 2022 TR 12515 Cerise Ave, Hawthorne, CA 90250 USA TEL: 1-800-656-1918 2022/8/29 DTS-UNII Device Declaration Letter To whom it may concern, We have declared below featured for FCC/IC equipment authorization, Device FCC ID: 2AEUPBHASG001 IC: 20271-BHASG001 DFS Device --

(1) Client without radar detection capability Master Client with Radar detection capability , N/A

(2) Active / Passive Scanning , ad-hoc mode access point capability Frequency Band

(MHz) 5.15~5.25GHz 5.25~5.35GHz 5.47~5.725GHz 5.725~5.85GHz Active Scanning

(the device can transmit a probe

(beacon)) Yes , Yes , Yes , Yes , No No No No passive scanning

(where the device is can listen only with no probes) No No No No Yes , Yes , Yes , Yes , Ad Hoc Mode or WIFI Direct capability Access point capability Yes , No Yes , No Yes , No Yes , No Yes , No Yes , No Yes , No Yes , No Country code selection ability -

(3) If yes, please explain how it was implemented: (please also help to provide detail of options for each country selection) Yes , No

(4) Meet 15.202 requirement - Yes, Please check below:

No, A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network. CC OTH 00578377 2022 TR 12515 Cerise Ave, Hawthorne, CA 90250 USA TEL: 1-800-656-1918 For client devices that have software configuration control to operate in different modes (active scanning No Apply, (If apply, please help to provide explanation on it was implement, and how software

(5) in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non-DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes cannot be modified by end user or an installer. Apply, was controlled) On DFS channels, the WLAN driver in the device operates under the control of an AP at all times, except when in ad-hoc mode on US non-DFS channels. The device passively scans DFS frequencies until a master device is detected. The control of this functionality is not accessible to anyone under any conditions. Furthermore, the firmware is protected by a special signature and CRC checksum. Signature and CRC checksum will be calculated and verified before firmware upgrade. Unauthorized modification to firmware will lead to the failure of verification and thus firmware upgrade will not be allowed.

(6) Please help to provide justification how device was restricted to operate in 5600-5650MHz in below. Not applicable. Device operates using passive scan type for this band. ________________________ Elvira Palmeda / Director Ring LLC Tel: 1-800-656-1918 E-mail: ring-certifications@amazon.com

CC OTH 00563817 2022 TR 12515 Cerise Ave, Hawthorne, CA 90250 USA TEL: 1-800-656-1918 Date: 2022/7/4 We, Ring LLC 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. FCC ID: 2AEUPBHASG001 If you should have any question(s) regarding this declaration, please dont hesitate to contact us. Thank you!

Elvira Palmeda / Director Ring LLC Tel: 1-800-656-1918 E-mail: ring-certifications@amazon.com

1523 26th St, Santa Monica, CA 90404, USA TEL: + 8006561918 Date: 2021/11/9 FCC ID: 2AEUPBHASG001 A U T H O R I Z A T I O N L E T T E R To Whom It May Concern:

Ring LLC hereby authorizes Debby Lin/Senior specialist of Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch (BV CPS Taoyuan), to act on its behalf in all matters relating to the Federal Communication Commission (FCC) application for equipment authorization in connection with the FCC ID listed above, including signing of all documents relating to these matters. Any and all acts carried out by Debby Lin/Senior specialist of BV CPS Taoyuan on Ring LLCs behalf, within the scope of the powers granted herein, shall have the same effect as acts of its own. If you have any questions regarding the authorization, please dont hesitate to contact us. Sincerely yours,

Slash Chang / Engineer, Ring Ring LLC Tel: (800) 656-1918 E-mail: ring-certifications@amazon.com

FCC ID: 2AEUPBHASG001 Description of Permissive Change The application is prepared for FCC class II permissive change by removing DTS channel spacing 600kHz mode and Hybrid mode by updating software of LoRa technology, also change simultaneously transmission condition. The conditions are as below. For more detail, please refer to reports and Operational Description. Except for the changes mentioned above, no other modification is performed.

Debby Lin, Senior Specialist Tel: 886-3-318 3232 ext. 4311929 Email: debby.lin@bureauveritas.com Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch

775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: certification@bureauveritas.com Website: https://www.cps.bureauveritas.com/

Confidentiality Request Letter Revision History From Reason for Amendment (current / obsolete) Initial Release (obsolete) Adding CFR 2.459 (obsolete) Updated company template & Added text box

(obsolete) Added IC confidentiality letter form (obsolete) Corrections to STC form. Added reference to KDB

(obsolete) Updated company logo (current) Updated References and Contact Info 1.0 1.0 2.0 3.0 4.0 5.0 6.0 To 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Approved Date Nov-14-2006 August 11 - 2008 Jan-31-2012 March-26-2015 Nov-19-2015 Jun-26-2019 Aug-30-2020 SCS-F019: Confidentiality Request Letter Page 1 of 3 Rev 7.0 2021/11/9 To:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046-1609 Cc:

Bureau Veritas Consumer Products Services Inc. 775 Montague Expressway Milpitas, CA 95035 Subject: Confidentiality Request for FCC ID: 2AEUPBHASG001 Pursuant to CFR 47 sections 0.457 and 0.459, we respectfully request permanent confidential treatment of the following Exhibits accompanying this application be held confidential:

Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent Permanent i Permanent Permanent Permanent Permanent Exhibit Block Diagram External Photos Internal Photos Operational Description/ Theory of Operation Parts List Tune-Up Procedure Schematics Test Setup Photos Users Manual Permanent i Permanent Software Operational Description 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. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality:

To avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 45 or 180 days; or for a specified date of not to exceed 180 days from the Grant Date The applicant understands that disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Clients signature:

Clients name & title: Slash Chang / Engineer Contact information / address: ring-certifications@amazon.com i Permanent confidentiality may be requested in accordance with FCC KDB 726920 SCS-F019: Confidentiality Request Letter Page 2 of 3 Rev 7.0

WARNING:pdfminer.pdfpage:The PDF <_io.BufferedReader name='/Volumes/Scratch/Incoming/eg-scratch/5546795.pdf'> contains a metadata field indicating that it should not allow text extraction. Ignoring this field and proceeding. Use the check_extractable if you want to raise an error in this case 1523 26th St, Santa Monica, CA 90404, USA TEL: + 8006561918 Date: 2021/11/09 We, Ring LLC 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. FCC ID: 2AEUPBHASG001 If you should have any question(s) regarding this declaration, please dont hesitate to contact us. Thank you!

Slash Chang / Engineer, Ring Ring LLC Tel: (800) 656-1918 E-mail: ring-certifications@amazon.com

1523 26th St, Santa Monica, CA 90404, USA TEL: + 8006561918 DFS client device channel plan and software operational declaration Date: 2021/11/9 We, Ring LLC, declare that the device, FCC ID: 2AEUPBHASG001 Model Name: 5F48E9

, does not have Ad Hoc on non-US frequencies and/or on DFS frequencies. Also, the client software and associated drivers will not initiate any transmission on DFS frequencies without initiation by a master. This includes restriction on transmissions for beacons and support for ad-hoc peer-to-peer modes. Below is the channel / frequency plan for the device CH 1 Scan Type Frequency (MHz) 2412 Active 2 2417 11 2462 Active Active Active Active Active Active Active Active Active Active 5 2432 8 2447 4 2427 3 2422 6 2437 7 2442 9 2452 10 2457 Frequency (MHz) 5180 36 48 42 5240 5210 Active Active Active Active Active Active Active 38 5190 44 5220 40 5200 46 5230 Frequency (MHz) 5260 52 58 5290 Passive Passive Passive Passive Passive Passive Passive 54 5270 60 5300 56 5280 62 5310 64 5320 CH 100 Frequency (MHz) 5500 Scan Type CH 124 Frequency (MHz) 5620 104 5520 102 5510 110 5550 Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive 136 5680 126 5630 108 5540 134 5670 116 5580 140 5700 106 5530 132 5660 128 5640 112 5560 118 5590 120 5600 122 5610 142 5710 138 5690 144 5720 Scan Type Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive 149 Frequency (MHz) 5745 165 5825 Active Active Active Active Active Active Active Active 151 5755 157 5785 155 5775 153 5765 161 5805 159 5795 Scan Type Also, on DFS channels, the WLAN driver in the device operates under the control of an AP at all times, except when in ad-hoc mode on US non-DFS channels. The device passively scans DFS frequencies until a master device is detected. The control of this functionality is not accessible 5G band 1 CH Scan Type 5G band 2 CH Scan Type 5G band 3 5G band 4 CH 1523 26th St, Santa Monica, CA 90404, USA TEL: + 8006561918 to anyone under any conditions. Furthermore, the firmware is protected by a special signature and CRC checksum. Signature and CRC checksum will be calculated and verified before firmware upgrade. Unauthorized modification to firmware will lead to the failure of verification and thus firmware upgrade will not be allowed. Sincerely yours, Sincerely yours,

Slash Chang / Engineer, Ring Ring LLC Tel: (800) 656-1918 E-mail: ring-certifications@amazon.com