FCC ID: 2ACOA-MS3 Digital Spread Spectrum Transceiver

Integration Guide Mesh Stamp 3 Copyright 2023 Zenner USA Rev A Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com Table of Contents FCC/IC Compliance ........................................................................................3 List of Applicable FCC Rules ............................................................................4 Specific Operational Use Conditions ................................................................6 Antenna .......................................................................................................6 Label and Compliance Information .................................................................6 Limited Module Procedures ...........................................................................6 Host, Host Labeling and Host User Manual Requirements .................................6 Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com FCC/IC Compliance FCC ID: 2ACOA-MS3 IC ID: 26631-MS3 Note: This equipment 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 equipment 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 equipment does cause harmful interference to radio or television reception, which can be determined by turning this equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Increase the separation between the equipment and receiver. Reorient or relocate the receiving antenna. Connect the equipment to 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: This device complies with Industry Canadas license-exempt RSSs. Operation is subject to the following two conditions:

This device may not cause interference; and This device must accept any interference, including interference that may cause undesired operation of the device."

Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de license. L'exploitation est autorise aux deux conditions suivantes:

l'appareil ne doit pas produire de brouillage, et l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Caution: Changes or modifications not expressly approved by the manufacturer could void the users authority to operate the equipment. Attention: les changements ou modifications non expressment approuvs par le fabricant peuvent annuler le droit de l'utilisateur utiliser l'quipement. To comply with FCC RF exposure requirements, the device and the antenna for this device must be installed to ensure a minimum separation distance of 20 cm or more from a person's body. Other operating configurations should be avoided. Pour se conformer aux exigences d'exposition RF FCC/IC, lantenne utilise pour cette radio doit tre correctement installe et entretenue. Elle doit respecter une distance minimum de 20 cm de lutilisateur et ne doit pas tre installe proximit ou utilise conjointement avec tout autre antenne ou metteur. Nutilisez pas votre radio si vous ne respectez pas la distance spcifie. Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com List of Applicable FCC Rules 1. The modular transmitter must have its own RF shielding. This is intended to ensure that the module does not have to rely upon the shielding provided by the device into which it is installed in order for all modular transmitter emissions to comply with Part 15 limits. It is also intended to prevent coupling between the RF circuitry of the module and any wires or circuits in the device into which the module is installed. Such coupling may result in non-compliant operation. There is an RF shield covering the complete radio section of the Mesh Stamp 3. 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with Part 15 requirements under conditions of excessive data rates or over-modulation. No modulation / data inputs are provided. The Mesh Stamp 3 processor directly interfaces with the radio section. The processor controls the data rate and FSK frequency deviation ensuring excessive data rates or over-modulation cannot occur. 3. The modular transmitter must have its own power supply regulation. This is intended to ensure that the module will comply with Part 15 requirements regardless of the design of the power supplying circuitry in the device into which the module is installed. The Mesh Stamp is powered by an input DC voltage of 3.6V to 7.0V. Linear regulators provide 3.3V to the processor section and radio chip. A linear regulator supplies 3.5V to the radio power amplifier. 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). The antenna must either be permanently attached or employ a

"unique" antenna coupler (at all connections between the module and the antenna, RF Section Shield Reverse Polarity SMA Antenna Connector including the cable). Any antenna used with the module must be approved with the module, either at the time of initial authorization or through a Class II permissive change. The "professional installation" provision of Section 15.203 may not be applied to modules. A unique antenna coupler, a reverse polarity SMA connector, is attached to the Mesh Stamp 3. Compliance testing was performed with a 8.0 dBi gain vertical antenna. 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in Section 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see Section 15.27(a)). The length of these lines shall be length typical of actual use or, if that length Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified or commercially available (see Section 15.31(i)). The Mesh Stamp 3 was tested for compliance plugged into a mother board which provided power and a computer USB connection. The USB connection provided a method to communicate with the Mesh Stamp 3 to instruct it to transmit on specific frequencies for compliance testing. The mother board is typical of ones which will be used for products incorporating the Mesh Stamp 3. The mother board was not housed in an enclosure. 6. The modular transmitter must be labeled with its own FCC ID number, and, if the FCC is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: "Contains Transmitter Module FCC ID: XYZMODEL1" or "Contains FCC ID: XYZMODEL1." Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. The Mesh Stamp has a silkscreened label containing the FCC ID number on its top side. A separate document showing the location of the FCC ID on the MS3 is included with the application. In addition, products manufactured by Zenner USA incorporating the Mesh Stamp 3 contain an external label referring to the enclosed module. 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 15.231 is not applicable to the Mesh Stamp 3. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. Specific instructions for RF exposure are addressed in the users guide provided for the end products containing the Mesh Stamp 3. Specific Operational Use Conditions The Mesh Stamp 3 is designed to work specifically in Zenner USA host devices only. The user guide defines specific installation instructions for the host device. Antenna The antenna installation requirements are defined in the user guide. Label and Compliance Information Labeling guidelines for Host devices are included in the FCC filing. Limited Module Procedures The Mesh Stamp 3 is designed to work specifically in Zenner USA host devices only. As the Mesh Stamp 3 is intended to only be integrated into Zenner USA host devices, no additional test procedures or test modes are provided. Any changes shall be requested through Zenner USA. Host, Host Labeling and Host User Manual Requirements Contains FCC ID: 2ACOA-MS3 IC: 26631-MS3 Each host must have a permanently affixed label with the following information:

The FCC ID and IC ID must always be accessible when using the product. The placement of the FCC ID and IC ID must be a physical label on the product, unless an e-label is used. Physical FCC ID and IC ID labels must be located on the surface of the product, or within a user-accessible non-detachable compartment (such as the battery compartment). The label shall be permanently affixed, permitting the device to be positively identified. The font needs to be readily legible, consistent with the dimensions of the equipment and its label area. Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com This modular transmitter meets the requirement of FCC 15.247, 15.207, 15.209, ISED RSS-

247, RSS-Gen and ICES-003. Compliance is based on an antenna gain of 8dBi. To ensure host compliance, the host antenna gain must not exceed 8dBi. This modular transmitter meets the requirements 2.1091 and RSS-102 and is approved for mobile and fix applications. To comply with FCC and ISED RF exposure requirements, the host device and its antenna must be installed to ensure a minimum separation distance of 20 cm or more from a person's body. The host or end-user Users Manual must contain for following:

Note: This equipment 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 equipment 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 equipment does cause harmful interference to radio or television reception, which can be determined by turning this 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 to 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: This device complies with Industry Canadas license-exempt RSSs. Operation is subject to the following two conditions:

This device may not cause interference; and This device must accept any interference, including interference that may cause undesired operation of the device."

Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de license. L'exploitation est autorise aux deux conditions suivantes:

l'appareil ne doit pas produire de brouillage, et l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Caution: Changes or modifications not expressly approved by the manufacturer could void the users authority to operate the equipment. Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com Attention: les changements ou modifications non expressment approuvs par le fabricant peuvent annuler le droit de l'utilisateur utiliser l'quipement. To comply with FCC RF exposure requirements, the device and the antenna for this device must be installed to ensure a minimum separation distance of 20 cm or more from a person's body. Other operating configurations should be avoided. Pour se conformer aux exigences d'exposition RF FCC/IC, lantenne utilise pour cette radio doit tre correctement installe et entretenue. Elle doit respecter une distance minimum de 20 cm de lutilisateur et ne doit pas tre installe proximit ou utilise conjointement avec tout autre antenne ou metteur. Nutilisez pas votre radio si vous ne respectez pas la distance spcifie. Zenner USA 15280 Addison Road, Suite 240, Addison, Texas, 75001 888.279.9670 zennerusa.com

Applicant: Zenner USA FCC ID: 2ACOA-MS3 Test Report S/N: 45461897-R1.0 Project: 1641 EXHIBIT 9 LABEL LOCATION Figure E9.1 Label Location 2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 8 of 21

Applicant: Zenner USA FCC ID: 2ACOA-MS3 Test Report S/N: 45461897-R1.0 Project: 1641 EXHIBIT 8 LABEL SAMPLE Figure E8.1 Label Sample 2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 7 of 21

Re I IO I Date: 16 November 27023 1o:

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Ala Jannarii@A harakhy aidhansvea Ban Uauwean ar Art \VJace at falttarh | ake an pir hahalf ta annly tn ee Se es tne rederal Communications Commission on our equipment. ANY and ali acts Carriea out dy Velltecn RD NEE TE FONE IGANE ETGANN FUG Ee OST WII GU GS WT i se eer ra ee Tills lS WU AUVISe Ulal WE ai Hi lull COMIN WITT UI FIM LTUy PAMUSS PAUL. VV, UI GVM, aie Ut eiihiact ta 4 danial of fadaral hanefite nirciiant tq Sactinn 5201 af the Anti-Driiq Act anf 10828 94 UoLlo00d, anda No Pally tO the application IS SUDJECT fO a Genial OF TeQeral DENenS PUrSUAaNt tO Mat mmm Regards i= se fl VnwT A,

\ Bernara Nance Jeanner USA | 15280 Addison Rd. Suite 240. Addison. Texas 75001 | 888.766.1253 | ZennerUSA.com

ZENNER oa)

: 3 All that counts Designated U.S. Agent Information:

FRN: 0023757347 Name: Zenner USA Address: 15280 Addison Rd Suite 240, Addison, TX 7500 Contact Person: Bernard Nance Tel.: 972-386-6611 x 125 Email: bnance@zennerusa.com Zenner USA, (the applicant) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Federal Communications Commissio Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Re: Attestation Statements FCC 2.911(d}(7 Grantee Code: 2ACOA 15280 Addison Rd, Suite 240, Addison, Texas 7500 ZennerUSA com ncerely,

Zenner USA, (the applicant ) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to 47 CFR 2.903 of the FCC rules. Furthermore, the applicant certifies that, as of the date of the filing of this application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) a an entity producing covered equipment. Federal Communications Commissio Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA RE: Attestation Statements 47 CFR 2.911(d)(5)(i) and 2.911(d)(5) (ii FCC ID: 2ACOA-MS3 Zenner USA 15280 Addison Rd, Suite 240, Addison, Texas 7500 Bernard Nance Date: 16 November 202

2 Eo CeP SEN TNS NES ERY EET AS CAPT BA ALES TELM AIO 1 REL EERE L ES SIT RII EL ESN AEE I eR IE 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 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application Pursuant to DA04-1/705 June 15, 2004 of the Commission's public notice, we also request tempora confidential treatment of information accompanying this application as outlined below for 180 days:

Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

lie Name Exhibit 15 Integration Manual.pdf Exhibit 16 Photos DUT External.pd Exhibit 17 Photos DUT Internal.pdf Exhibit 18 Photos EMC Setup. pdf Exhibit 10 Block Diagram.pdf Exhibit 11 Operation Description.pd Exhibit 12 Schematic Diagram. pdf oO:

Federal Communications Commissio 7435 Oakland Mills Road Columbia, Maryland 21046 USA Exhibit Type Integration Manual External Photos Internal Photos etup Photos (EMC RE: Confidentiality Request regarding application for certification of FCC ID: 2ACOA-M xhibdit Type Block Diagram Operation Descriptio Schematic Diagram Zenner USA 15280 Addison Rd, Suite 240, Addison, Texas 7500 888. /66.1253 sincerely,

______________________________________________________________________________________ 21-364 Lougheed Road, Kelowna, British Columbia, Canada V1X 7R8 Tel: 1-250-765-7650 Fax: 1-250-765-7645 Date: 1 November 2023 To:

Federal Communications Commission 7435 Oakland Mills Road Columbia, Maryland 21046 USA RE: Zenner USA. FCC ID: 2ACOA-MS3 This is an application for a new limited modular certification of Zenner USA., FCC ID: 2ACOA-MS3, Product Model Name/PMN: Mesh Stamp 3, Model/HVIN: 208-0004-001. The Mesh Stamp 3 is a digital spread spectrum operating in the 902-928MHz band. The module is limited as it does not have regulated power, but meets all other requirements for Limited Modular Approval. The module is not to be marketed to 3rd party integrators and will only be used in the OEM's host products. The OEM's host products are Class A digital devices marketed to, and professionally installed by, Public Utility Service Providers. The devices are used to send utility metering data to the utility service providers. This device was evaluated to, and meets the requirements of, 47 CFR 15.247 and 15.212(b). Should there be any questions or concerns with this filing, please feel free to contact me. Sincerely, Art Voss, P.Eng., BS EE Technical Manager 21-364 Lougheed Rd Kelowna, BC, V1X 7R8, Canada 250-765-7650 Ext 202 art.voss@celltechlabs.com www.celltechlabs.com Celltech Labs Inc 2017

--- Proprietary ---

15.212 Modular transmitters.

(a) Single modular transmitters consist of a completely self-contained radiofrequency transmitter device that is typicall incorporated into another product, host or device. Split modular transmitters consist of two components: a radio front end with antenna (or radio devices) and a transmitter control element (or specific hardware on which the software that controls the radio operation resides). All single or split modular transmitters are approved with an antenna. All of the following requirements apply, except as provided in paragraph (b) of this section.

| (iv) The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The orofessional installation provision of 15.203 is not applicable to modules but can apply to limited modula approvals under paragraph (b) of this section. Zenner USA 15280 Addison Rd, Suite 240, Addison, Texas 75001 888.766.1253 ZennerUSA.com

(1) Single modular transmitters must meet the following requirements to obtain a modular transmitter approval. Xx] (i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. X] (ii) The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over modulation. We, Zenner USA, (the applicant ), request modular approval of an apparatus, FCC !D indicated above, and attest that the apparatus meets the requirements of 47 CFR 15.212 as follows:

Approval Type:

To: Federal Communications Commissio Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA RE: Modular Approval Attestation Statements 47 CFR 15.21

(iii) The modular transmitter must have its own power supply regulation X| Limited Single Modular Approval

| | Limited Split Modular Approval

|_| Single Modular Approva

| | Split Modular Approva Date: 16 November 202

|_| (v) The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see 15.27(a)). The length of these lines shall be the length typical of actual use or, i that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available (see 15.31(i)). B) lf the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. A) Manufacturers must ensure that only transmitter control elements and radio front end component that have been approved together are capable of operating together. The transmitter module must not operate unless it has verified that the installed transmitter control elements and radio front end have been authorized together. Manufacturers may use means including, but not limited to, coding in hardware and electronic signatures in software to meet these requirements, and must describe the methods in their application for equipment authorization. X] (vii) The modular transmitter must comply with any specific rules or operating requirements that ordinaril apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. DX] (vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable o electronically displaying its FCC identification number.

] viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Zenner USA = 15280 Addison Rd, Suite 240, Addison, Texas 7500 b) A limited modular approval may be granted for single or split modular transmitters that do not comply with all of the above requirements, e.g., shielding, minimum signaling amplitude, buffered modulation/data inputs, or power supply regulation, if the manufacturer can demonstrate by alternative means in the application for equipment authorization hat the modular transmitter meets all the applicable part 15 requirements under the operating conditions in which the transmitter will be used. Limited modular approval also may be granted in those instances where compliance with RF exposure rules is demonstrated only for particular product configurations. The applicant for certification must state ho control of the end product into which the module will be installed will be maintained such that full compliance of the end product is always ensured.

|_| (iv) Manufacturers must ensure that only transmitter control elements and radio front end components that have been approved together are capable of operating together. The transmitter module must not operate unless it has verified that the installed transmitter control elements and radio front end have been authorized together. Manufacturers may use means including, but not limited to, coding in hardware and electronic signatures in software to meet these requirements, and must describe the methods in their application for equipment authorization.

|_| (i) Only the radio front end must be shielded. The physical crystal and tuning capacitors may be located external to the shielded radio elements. The interface between the split sections of the modular system must be digital with a minimum signaling amplitude of 150 mV peak-to-peak. 2) Split modular transmitters must meet the requirements in paragraph (a)(1) of this section, excluding paragraph

(a)(1)(i) and (a)(1)(v), and the following additional requirements to obtain a modular transmitter approval.

|_| (iii) The sections of a split modular transmitter must be tested installed in a host device(s) similar to tha which is representative of the platform(s) intended for use.

|| (ii) Control information and other data may be exchanged between the transmitter control elements and radio front end. A 15280 Addison R uite 240, Addison, Texas 7/5001

e Attestation

$3 We, Zenner USA, (the applicant) declare that we are the Original Equipment Manufacturer (OEM) of the ited module, FCC ID: 2ACOA-MS3, and that we will not be making available this module to 3rd party integrators, manufacturers or suppliers. We also declare that we will be integrating this module into our ow!

host products in accordance with the conditions it was granted. oO:

Federal Communications Commi Authorization and Evaluation Columbia, MD 21046 USA Date: 5 Decembe RE: OEM Modul FCC ID: 2ACOA-M Bernard Nance 15280 Addison Rd Suite 240, Addison, Texas 7500