FCC ID: 2AY22-D485ZT92 ZETA 485 Transceiver

ZETA 485 Transceiver ZETA 485 Transceiver 1 ZETA 485 Transceiver Copyright Statement ZiFiSense owns the copyright on this specification. No part of this specification may be reproduced in any form or means, without the prior written consent of ZiFiSense. Disclaimer This specification is preliminary and is subject to change at any time without prior notice. ZiFiSense assumes no responsibility for any errors contained herein. ZiFiSense is not responsible for any patent infringement of third party on its use or as a result of its uses. Other products/services not certified by the patent license, shall be deemed within patent ownership of ZiFiSense. 2 ZETA 485 Transceiver Table of Contents 1. Product Description.........................................................................................................................4 2. Applications....................................................................................................................................... 4 3. Appearance........................................................................................................................................ 4 4. Features.............................................................................................................................................. 4 5. Product parameters......................................................................................................................... 5 6. Packing List........................................................................................................................................5 7. Installation.......................................................................................................................................... 6 7.1. Screw...................................................................................................................................... 6 8. Use of Device..................................................................................................................................... 8 8.1. Indicator Description............................................................................................................. 8 8.2. Steps for use..........................................................................................................................8 8.3. Support function.................................................................................................................... 8 9. Common faults and handling........................................................................................................ 9 3 1. Product Description ZETA 485 Transceiver ZETA 485 Transceiver is a low power module that uses the standard RS485 (Modbus RTU) interface to collect data from the multifunction electric meter. 2. Applications 3. Appearance Smart meter reading. Modbus RTU terminal reading control. 4. Features Wireless transmission Low power consumption Easy to install, high sensitivity Reliable detection Real-time transmission 4 5. Product parameters ZETA 485 Transceiver Product No. D485ZT92 Transmission protocol ZETA Wireless Features Frequency band 920-925 MHz Electrical Features Output power 20 3 mW Power supply 100~240V AC Power frequency 50~60Hz Stand-by current 10 A Working current 70 mA Size 36*104*59 mm Physical Features Enclosure material ABS Antenna Monopole antenna Interface RS458 RTU Operating temperature

-20

~+75 Storage temperature

-30

~+85 Sensor Characteristics Working Environment 6. Packing List ZETA 485 Transceiver Antenna 1 1 5 7. Installation 7.1. Screw 7.1.1.Auxiliary material No. Materials 1 2 C45 GB steel rail Screws Rail size:

ZETA 485 Transceiver Quantity 1 1 set 7.1.2.Installation instructions Instal steel rail Before installation, clean the burrs on the mounting surface of the rail and the dirt on the wall. Attach the guide rail to the mounting surface and confirm the bolt hole position, and tighten the bolts one by one. Install sensor device Snap the sensor onto the rail and push the lower snap to engage the rail as shown:

6 ZETA 485 Transceiver Wiring Connect according to the label on the sensor label, as shown in the figure:

Reserved, no wiring required Connected to the mains, AC 100~240V NC :

L/N :

A+

B-

485 Positive 485 Negative 7 ZETA 485 Transceiver 8. Use of Device 8.1. Indicator Description Red: power indicator Lights up when power is normal Yellow: module status indicator Registration: Lights up 2ms every 2s until the registration is successful. When the device goes to sleep, the light is off. Successfully registered: Lights up 2ms every 500ms, and lasts for 5s. Working normally: Lights up 2ms every 1 minute Green: sensor operation indicator Lights up 1 second for every time the data is collected. Alarm occurred: 500ms on, 500ms off, until the alarm is cleared. 8.2. Steps for use Connect the antenna and place the device within ZETA network coverage area ;

Power on, wait for the device to connect to network Configure alarm thresholds and reporting periods based on requirements. Daily maintenance and data viewing 8.3. Support function Version number: Report the software version number of the sensor only once after power-on. Status report: Report status data periodically according to the setting . Set/Query the parameter reporting period: can set or query the data reporting cycle (Range: 1~65535 min, default: 12*60min) Set/Query address code: 485 communication requires address code matching. (Range: 1~247, default: none) Set/Query register function code: Query or set the function code of Modbus (range: 03 or 04) 8 ZETA 485 Transceiver Set/Query acquisition parameters: When setting, you need to input the register address to be read and the number of bytes read. You can set multiple acquisition parameters at the one time. Set/Query serial port parameters: The serial port parameters include:

baud rate, data bit, parity bit, stop bit, and the parameters need to be matched with the device to read the data normally. Query data: In addition to waiting for the sensor to report, you can actively query the current data collected by the device. Query version number: You can query the software version number of the current sensor. 9. Common faults and handling Ensure ZETA signal coverage Ensure that the device is powered on, and the ZETA network device management platform can observe that the ZETA module is online Check the battery usage of the device. When the battery is low, replace the battery in time. 9 FCC Statement 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 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. This device complies with FCC PART15 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. ZETA 485 Transceiver 10

Xiamen ZiFiSense InfoTech Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-03-16 Subject: Request for Confidentiality FCC ID: 2AY22-D485ZT92 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Long-Term Confidentiality Short-Term Confidentiality NOTE 2 Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info No No No No No No No No No No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Paul Li Title: Manager 1/1

Xiamen ZiFiSense InfoTech Co., Ltd Letter of Authorization Company: Xiamen ZiFiSense InfoTech Co., Ltd Address: Room 803, Building A-05, Software Park Phase III, Jimei District, Xiamen, China Product Name: ZETA 485 Transceiver Model Number: D485ZT92 FCC Identifier: 2AY22-D485ZT92 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Date: 2021-03-16 Name:

Title: Manager Signature of applicant: Paul Li 1/1