2ASGC-MREX460UHF Digital Transceiver

MReX Transceiver User Manual v1.92 Firmware MReX TELEMETRY and POCSAG TRANSCEIVER MODULE User Manual © WTE Limited, 2020 – Christchurch New Zealand Page 1 of 59 MReX Transceiver User Manual v1.92 Firmware Table of Contents Introduction.....................................................3 MReX Features......................................3 MReX Versions......................................3 Safety Information...........................................4 Operation.........................................................8 Configuration...................................................9 Transmit Commands.................................10 *TX_FREQ..........................................10 *TX_BAUD.........................................10 *TX_PROTO.......................................10 *TX_MODE.........................................11 *TX_LEVEL........................................11 *TX_CAP.............................................11 *TX_PERIODIC..................................11 *TX_PREAMBLE...............................12 *TX_PWR............................................13 Receive Commands..................................14 *RX_FREQ..........................................14 *RX_BAUD.........................................14 *RX_PROTO.......................................14 *RX_MODE........................................15 *RX_RANGE......................................15 *RX_BUSY.........................................15 *RX_ENABLE....................................16 Base Commands.......................................17 *REBOOT............................................17 *CONFIG.............................................17 *SAVE..................................................17 *LIST...................................................17 *DEFAULTS........................................17 *FREQ_OFFSET.................................18 *SERIAL_LINK..................................18 *VER....................................................18 *IO.......................................................18 *BYPASS.............................................19 *RSSI...................................................19 *LOW_BATT.......................................20 *LAB....................................................20 Store Forward Commands........................21 *STORE_FWD....................................21 Input Commands.......................................22 *IN_CONFIG_L..................................22 *IN_CONFIG_H..................................22 *IN_MSG_L........................................23 *IN_MSG_H........................................23 Output Commands....................................24 *OUT_CONFIG...................................24 *UNIT_ID............................................24 Protocols........................................................25 WT Protocol..............................................25 RAW Protocol...........................................27 *RAW_CONFIG..................................27 Serial Point to Point Operation......................28 *SERIAL_LINK..................................29 Input Handling...............................................31 Output Handling............................................33 WTE Output Control Protocol.......................34 Introduction...............................................34 Format.......................................................34 Examples:.............................................35 Remote Command Output Format............36 Examples:.............................................36 Store Forward Operation...............................38 Installation.....................................................39 Cables Supplied........................................39 Connecting to the MReX..........................40 Module Pin descriptions...........................41 Input Hardware Connection......................42 Output Hardware Connection...................43 MReX Mounting Details..........................44 OEM Integration.......................................46 Power Supply.......................................46 Generic Digital Interfaces....................46 Antenna RF interfaces requirements....46 Label and compliance information......47 MReX Firmware Upgrade.............................48 Firmware Upgrade Utility.........................48 Firmware Upgrade Process.......................49 Antenna..........................................................50 Omni antenna............................................50 Directional antenna...................................50 Antenna Elevation.....................................50 Disclaimer......................................................53 Manufacturing marking and labels................54 Maintenance..................................................54 Product End Of Life......................................55 Product Warranty...........................................56 Specification..................................................57 © WTE Limited, 2020 – Christchurch New Zealand Page 2 of 59 MReX Transceiver User Manual v1.92 Firmware Introduction Thank you for choosing the MReX. The MReX is a low cost, very high sensitivity transceiver module for mobile paging and general telemetry use. The MReX is also a compliant mobile and base station transmitter. MReX Features •Sends and receives 512, 1200 and 2400 baud POCSAG paging messages. •Sends telemetry data from 512 baud to 9600 baud using 4GFSK. •Paging store and forward repeater operation with configurable duplicate reject (optional). •Point to point wireless serial link operating at speeds up to 9600 baud. In this manner a wireless transparent serial link can be achieved. •5 inputs. One Input may be reconfigured to be an open collector output. •Configured inputs can be programmed to send messages when triggered. •Configured output can be controlled via paging message. •Periodic message support to ensure link int…

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June 15, 2020 SUBJECT: Authorisation To Act To whom it may concern, I hereby authorize Rodrigo Pellizzari, Engineer/Director of WTE Limited to act on my behalf with regard the FCC Certification for product manufactured by WTE Limited. Yours Faithfully Shannon Reardon Director/Engineer WTE Limited [email protected]

June 2, 2020 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 United States of America To whom it may concern, LONG TERM CONFIDENTIALITY REQUEST – FCC ID: 2ASGC-MREX460 Reference rule sections 0.457 (d) (ii) and pursuant to rule section 0.459 (a) confidentiality is requested as follows. Confidential Information: •Schematic diagrams •Part lists (both SMD and non-SMD) •Circuit Operation •Block Diagram •Tune Up / Calibration Procedure These items contain trade secret information which is not made routinely available to the public or to our competitors. Disclosure of this information will result in an unfair advantage to our competitors. It should be treated as confidential for the duration of the Grant Of Authorisation. The following confidentiality notice is printed on material supplied: This document is confidential and contains proprietary information and intellectual property of WTE LIMITED. Neither this document nor any of the information contained herein may be reproduced or disclosed under any circumstances without the express written permission of WTE LIMITED. Yours Faithfully Rodrigo Pellizzari Director/Engineer WTE Limited

09/06/2020 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extended Frequencies Justification To Whom It May Concern: We, WTE Limited, would like to submit the following justification to show the frequency range 421-480MHz on the Grant of Equipment Authorization under Part 90 for FCC ID: 2ASGC- MREX460 Per the FCC’s KDB634817 guidance, as an alternative to listing the exact frequencies, we acknowledge that it’s a violation of the FCC Rules if this device operations on unauthorized frequencies. This radio is intended for use by federal agencies, public agencies, emergency services, as well as commercial, business, and industrial services. Additionally, it will be used in other countries that accept the FCC Grant of Equipment Authorization. These services account for a majority of users as described in the below table Frequency RangeRule 421 - 450Part 90 450 – 454Part 90 456 - 460Part 90 460 - 462.5375Part 90 462.7375 – 467.5375Part 90 467.7375 - 480Part 90 This radio complies with 47 CFR Part 90.203(e) in that the operator cannot program and transmit on frequencies, other than those programmed by the manufacturer, service or maintenance personnel, using the equipment's external operation controls. It is noted that the FCC rules would be violated if this radio is programmed to operate on frequencies outside of FCC Part 90 Frequency Bands for users other than the Federal Government. Sincerely, Rodrigo Pellizzzari Director/Engineer WTE Limited

15/06/2020 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern, Single Modular approval is being sought for the device with proposed FCC ID: 2ASGC-MREX460 Although the device meets seven of the eight modular approval requirements, we do not wish to meet requirement 4 as the module has a fitted SMA connector. This antenna must be professionally selected and fitted and therefore we wish to comply with the professional installation requirements of 15.203. The module meets the seven of the eight modular approval requirements as follows. 1. All the RF circuitry and components of the MReX 460 RF section are shielded. The module has been tested on a jig that allows stand-alone operations and does not provide additional shielding. 2. All the module inputs, outputs and serial communication are buffered. The radio modulation levels and clock rates used for modulation are completely independent of the digital circuit of the module. 3. The MReX 460 contains internal 3.3V power supply regulation with appropriated filtering. The module also checks voltage rail and prevent transmission if they outside specification. 4. The MReX 460 has an RF SMA connector fitted. 5. The module has demonstrated compliance as a stand-alone device. No host is required and only a power supply is required in order to operate as a complete product. 6. The MReX 460 is labelled and shows the FCC ID. The FCC ID may be not visible when the module is installed in another device or enclosure. The OEM integration section of the MReX 460 manual states that the FCC ID: 2ASGC-MREX460 must be displayed following the FCC labels rules (KDB Publication 784748) 7. The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The MReX 460 manual extensively demonstrate the appropriated integration of the module with the host device. 8. RF Exposure information is included in the user manual supplied with this application. Kind regards Shannon Reardon Director/Engineer WTE Limited

____________________________________________________________________________________________________________________________________________________________________________ Page 39 of 41 Test Report No 200211.1b 17 th June 2020 This report may not be reproduced except in full. 9. PHOTOGRAPHS FCC ID 2ASGC-MREX460 Primary unit Back face

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Front View Front View (RF-Shield removed) Back View

____________________________________________________________________________________________________________________________________________________________________________ Page 36 of 41 Test Report No 200211.1b 17 th June 2020 This report may not be reproduced except in full. FCC ID 2ASGC-MREX460 Exposure of humans to RF fields As per FCC KDB 447498 D01 and Section 2.1091 radio frequency transmitters are required to be operated in a manner that ensures the public is not exposed to RF energy levels. Calculations have been made using the General Public/Uncontrolled Exposure limits that are defined in Section 1.1310. Minimum safe distances have been calculated below. The formula for Power Density is given by: E 2 /3770 = mW/cm 2 Between 300 – 1500 MHz the General Population / Uncontrolled exposure limit is f/1500 mW/cm 2 . As this radio can operate over the range of 421.0 to 480.0 MHz the lowest frequency of operation in the USA, which will give the worst case result, would be 421.0 MHz. The power density at 421.0 MHz will be 0.281 mW/cm 2 . For an Uncontrolled Environment Power Density = 0.281 mW/cm 2 = E 2 /3770 E= √0.281*3770 E = 32.5 V/m The rated maximum transmitter power = 100 mW (+20 dBm). A worst case scenario duty cycle of 100% has been used for the calculations. The client has declared that this transmitter would typically be operated using quarter wave whip or a dipole antennas which typically have a gain of 2.15 dBi or a numeric gain of 1.64. The minimum distance from the antenna at which the MPE is met is calculated from the following Field strength in V/m (FS), Transmit power in watts (P) Transmit antenna gain (G) Transmitter duty cycle (DC) Separation distance in metres (D) ____________________________________________________________________________________________________________________________________________________________________________ Page 37 of 41 Test Report No 200211.1b 17 th June 2020 This report may not be reproduced except in full. The calculation is as follows: FS = ( √ (30 * P * G * DC)) / D Therefore D = ( √ (30 * P * G * DC)) / FS D = (√ (30 * 0.1 * 1.64 * 1)) / 32.5 d= 0.068 m or 6.8 cm Result: Complies if a safe distance of at least 20 cm is applied to this device when it is used in an uncontrolled environment.

____________________________________________________________________________________________________________________________________________________________________________ Page 1 of 42 Test Report No 200211.1c 19 th June 2020 This report may not be reproduced except in full. EMC Technologies (NZ) Ltd 47 Mackelvie St, Grey Lynn Auckland 1021 New Zealand Phone 09 360 0862 Fax 09 360 0861 E-Mail Address: [email protected] Web Site: www.emctech.co.nz TEST REPORT WTE MReX 460 UHF Transceiver tested to the Code of Federal Regulations (CFR) 47 Part 90 –Private Land Mobile Services for WTE Limited This Test Report is issued with the authority of: ________________________________________ Andrew Cutler- General Manager ____________________________________________________________________________________________________________________________________________________________________________ Page 2 of 42 Test Report No 200211.1c 19 th June 2020 This report may not be reproduced except in full. Table of Contents 1. COMPLIANCE STATEMENT 3 2. RESULT SUMMARY 3 3. ATTESTATION 4 4. CLIENT INFORMATION 5 5. TEST SAMPLE DESCRIPTION 5 6. TEST RESULTS 7 7. TEST EQUIPMENT USED 39 8. ACCREDITATIONS 39 9. PHOTOGRAPHS 40 ____________________________________________________________________________________________________________________________________________________________________________ Page 3 of 42 Test Report No 200211.1c 19 th June 2020 This report may not be reproduced except in full. 1. COMPLIANCE STATEMENT The WTE MReX 460 UHF Transceiver complies with the limits defined in 47 CFRPart 90 and 47 CFR Part 2 when tested in-accordance with the test methods described in 47 CFR Part 2 and ANSI/TIA-603-E-2016. 2. RESULT SUMMARY The results of testing carried out between March 4 th and March 23 rd 2020 are summarised below. Clause Description Result 90.203 Certification required Noted 2.1046 90.205 RF power output Power and antenna height limits Noted Complies 2.1049 2.202 90.207 90.209 90.210 Occupied bandwidth Bandwidths Types of emissions Bandwidth limitations Emission masks Noted Noted Complies Complies Complies 2.1051 Spurious emissions at antenna terminals Complies 2.1053 Field strength of spurious radiation Not tested 2.1055 90.213 Frequency stability Frequency stability Noted Complies 90.214 Transient frequency behaviour Complies 1.1310 Radio frequency exposure limits Complies ____________________________________________________________________________________________________________________________________________________________________________ Page 4 of 42 Test Report No 200211.1c 19 th June 2020 This report may not be reproduced except in full. 3. ATTESTATION This report describes the tests and measurements performed for the purpose of determining compliance with the specification with the following conditions: The client selected the test sample. The report relates only to the sample tested. This report contains following corrections: 1. ANSI/TIA-603-D-2010 has been corrected with ANSI/TIA-603-E-2016 on page 3 and page 9. 2. Emission designator for 9600 baud 4GFSK modulation/ 12.5 kHz channel spacing has been updated to 8K30F1D on page 9. Measurement uncertainties with statistical confidence intervals of 95% are shown below test results. Both Class A and Class B uncertainties have been accounted for, as well as influence uncertainties where appropriate. All compliance statements have been made with respect of the specification limit with no reference to the measurement uncertainty. All testing was carried out as per the standard in the worst-case configuration with no deviations being applied. In addition this equipment has been tested in accordance with the requirements contained in the appropriate Commission regulations. To the best of my knowledge, these tests were performed using measurement procedures that are consistent with industry or Commission standards and demonstrate that the equipment complies with the appropriate standards. I further certify that the necessary measurements were made by EMC Technologies NZ Ltd, 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand. Andrew Cutler General Manager EMC Technologies NZ Ltd ____________________________________________________________________________________________________________________________________________________________________________ Page 5 of 42 Test Report No 200211.1c 19 th June 2020 This report may not be reproduced except in full. 4. CLIENT INFORMATION Company Name WTE Limited Postal Address 1 Pukeko Place, Southshore Christchurch 8062 Physical Address 175 Lawford Road, RD6 West Melton, Christchurch 7676 Country New Zealand Contact Mr Shannon Reardon 5. TEST SAMPLE DESCRIPTION Brand Name WTE Model Number MReX 460 Product UHF Transceiver Manufacturer Wireless Technologies Ltd Manufactured in New Zealand Serial Number 10125 FCC ID 2ASGC-MREX460 Transmitter Power 100 mW (+20 dBm) Certification Range 421 – 480 MHz Test frequencies Frequency (MHz) Power (Watts) Emission 421.000 100 mW FXD 451.000 100 mW FXD 480.000 100 mW FXD 12.5 kHz and 25 kHz offsets from the above mentioned frequencies have been used during testing and have been clearly mentioned in the test description and results. ____________________________________________________________________________________________________________________________________________________________________________ Page 6 of 42 Test Report No 200211.1c 19 th June 2020 This report may not be reproduced except in full. Temperature and Humidity Standard Temperature: +15 °C to + 30 °C maintained. Relative Humidity: 20% to 75% observed. High Temperature: + 50 °C maintained. Low Temperature: - 30 °C maintained. Test Power Source Standard Test Voltage: 5.0 Vdc High Voltage: 9.0 Vdc Low Voltage: n/a Product Overview: The MReX is a transceiver module for mobile paging and general telemetry use. The product sends and receives POCSAG paging messages at 512, 1200 and 2400 baud It also sends and rece…

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____________________________________________________________________________________________________________________________________________________________________________ Page 1 of 42 Test Report No 200211.1d 19 th June 2020 This report may not be reproduced except in full. EMC Technologies (NZ) Ltd 47 Mackelvie St, Grey Lynn Auckland 1021 New Zealand Phone 09 360 0862 Fax 09 360 0861 E-Mail Address: [email protected] Web Site: www.emctech.co.nz TEST REPORT WTE MReX 460 UHF Transceiver tested to the Code of Federal Regulations (CFR) 47 Part 90 –Private Land Mobile Services for WTE Limited This Test Report is issued with the authority of: ________________________________________ Andrew Cutler- General Manager ____________________________________________________________________________________________________________________________________________________________________________ Page 2 of 42 Test Report No 200211.1d 19 th June 2020 This report may not be reproduced except in full. Table of Contents 1. COMPLIANCE STATEMENT 3 2. RESULT SUMMARY 3 3. ATTESTATION 4 4. CLIENT INFORMATION 5 5. TEST SAMPLE DESCRIPTION 5 6. TEST RESULTS 7 7. TEST EQUIPMENT USED 39 8. ACCREDITATIONS 39 9. PHOTOGRAPHS 40 ____________________________________________________________________________________________________________________________________________________________________________ Page 3 of 42 Test Report No 200211.1d 19 th June 2020 This report may not be reproduced except in full. 1. COMPLIANCE STATEMENT The WTE MReX 460 UHF Transceiver complies with the limits defined in 47 CFRPart 90 and 47 CFR Part 2 when tested in-accordance with the test methods described in 47 CFR Part 2 and ANSI/TIA-603-E-2016. 2. RESULT SUMMARY The results of testing carried out between March 4 th and March 23 rd 2020 are summarised below. Clause Description Result 90.203 Certification required Noted 2.1046 90.205 RF power output Power and antenna height limits Noted Complies 2.1049 2.202 90.207 90.209 90.210 Occupied bandwidth Bandwidths Types of emissions Bandwidth limitations Emission masks Noted Noted Complies Complies Complies 2.1051 Spurious emissions at antenna terminals Complies 2.1053 Field strength of spurious radiation Not tested 2.1055 90.213 Frequency stability Frequency stability Noted Complies 90.214 Transient frequency behaviour Complies 1.1310 Radio frequency exposure limits Complies ____________________________________________________________________________________________________________________________________________________________________________ Page 4 of 42 Test Report No 200211.1d 19 th June 2020 This report may not be reproduced except in full. 3. ATTESTATION This report describes the tests and measurements performed for the purpose of determining compliance with the specification with the following conditions: The client selected the test sample. The report relates only to the sample tested. This report contains following corrections: 1. ANSI/TIA-603-D-2010 has been corrected with ANSI/TIA-603-E-2016 on page 3 and page 9. 2. Emission designator for 12.5 kHz channel spacing has been updated to 8K30F1D on page 9 to page 13. Measurement uncertainties with statistical confidence intervals of 95% are shown below test results. Both Class A and Class B uncertainties have been accounted for, as well as influence uncertainties where appropriate. All compliance statements have been made with respect of the specification limit with no reference to the measurement uncertainty. All testing was carried out as per the standard in the worst-case configuration with no deviations being applied. In addition this equipment has been tested in accordance with the requirements contained in the appropriate Commission regulations. To the best of my knowledge, these tests were performed using measurement procedures that are consistent with industry or Commission standards and demonstrate that the equipment complies with the appropriate standards. I further certify that the necessary measurements were made by EMC Technologies NZ Ltd, 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand. Andrew Cutler General Manager EMC Technologies NZ Ltd ____________________________________________________________________________________________________________________________________________________________________________ Page 5 of 42 Test Report No 200211.1d 19 th June 2020 This report may not be reproduced except in full. 4. CLIENT INFORMATION Company Name WTE Limited Postal Address 1 Pukeko Place, Southshore Christchurch 8062 Physical Address 175 Lawford Road, RD6 West Melton, Christchurch 7676 Country New Zealand Contact Mr Shannon Reardon 5. TEST SAMPLE DESCRIPTION Brand Name WTE Model Number MReX 460 Product UHF Transceiver Manufacturer Wireless Technologies Ltd Manufactured in New Zealand Serial Number 10125 FCC ID 2ASGC-MREX460 Transmitter Power 100 mW (+20 dBm) Certification Range 421 – 480 MHz Test frequencies Frequency (MHz) Power (Watts) Emission 421.000 100 mW FXD 451.000 100 mW FXD 480.000 100 mW FXD 12.5 kHz and 25 kHz offsets from the above mentioned frequencies have been used during testing and have been clearly mentioned in the test description and results. ____________________________________________________________________________________________________________________________________________________________________________ Page 6 of 42 Test Report No 200211.1d 19 th June 2020 This report may not be reproduced except in full. Temperature and Humidity Standard Temperature: +15 °C to + 30 °C maintained. Relative Humidity: 20% to 75% observed. High Temperature: + 50 °C maintained. Low Temperature: - 30 °C maintained. Test Power Source Standard Test Voltage: 5.0 Vdc High Voltage: 9.0 Vdc Low Voltage: n/a Product Overview: The MReX is a transceiver module for mobile paging and general telemetry use. The product sends and receives POCSAG paging messages at 512, 1200 and 2400 baud It also sends and receives Telemetry da…

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____________________________________________________________________________________________________________________________________________________________________________ Page 40 of 41 Test Report No 200211.1 27 th March 2020 This report may not be reproduced except in full. Radiated Emission test setup ____________________________________________________________________________________________________________________________________________________________________________ Page 41 of 41 Test Report No 200211.1 27 th March 2020 This report may not be reproduced except in full. Schwarzbeck Biconnical Antenna (30 – 300 MHz) Schwarzbeck log periodic antenna (300 – 1000 MHz) EMCO 3115 Horn Antenna (1 – 18 GHz)