WTE MReX-PCB User Manual Download Page 13

Christchurch, NZ

MReX-PCB User Guide V1.02

Disclaimer

THE RESPONSIBILITY LIES COMPLETELY ON THE USER TO ENSURE THAT THIS 
DEVICE IS TESTED, THROUGH METHODS THAT ARE APPROPRIATE, TO CONFIRM 
THAT ALL SYSTEM COMPONENTS (THAT THIS DEVICE AND PC SOFTWARE MAY BE 
PART OF) ARE WORKING CORRECTLY.  

This document has been prepared in good faith and produced to assist in the use of this product, 
however WTE Limited reserves the right to modify, add or remove features without notice.

Please note that the maximum permitted transmit power level may vary from country to 
country.  It is the users responsibility to ensure local regulations are adhered to. 

When product is supplied, it is the user who is responsible for payment of any customs fees/taxes 
that are imposed on importation.

No User-Serviceable Components. There are no user-serviceable components within the product.

RoHS and WEEE Compliance
MReX is fully compliant with the European Commission’s RoHS (Restriction of Certain Hazardous
Substances in Electrical and Electronic Equipment) and WEEE (Waste Electrical and Electronic 
Equipment) environmental directives.

Restriction of hazardous substances (RoHS)
The RoHS Directive prohibits the sale in the European Union of electronic equipment containing 
these hazardous substances: lead, cadmium, mercury, hexavalent chromium, polybrominated 
biphenyls (PBBs), and polybrominated diphenyl ethers (PBDEs).

End-of-life recycling programme (WEEE)
The WEEE Directive concerns the recovery, reuse, and recycling of electronic and electrical 
equipment. Under the Directive, used equipment must be marked, collected separately, and disposed
of properly.

© WTE Limited, 2021 – Christchurch New Zealand

           

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Summary of Contents for MReX-PCB

Page 1: ...Christchurch NZ MReX PCB User Guide V1 02 MReX PCB Mini Transmitter User Guide WTE Limited 2021 Christchurch New Zealand Page 1 of 13...

Page 2: ...Contents Introduction 3 Electrical 4 PCB Pinout 5 Programming the MReX Module 6 Inputs 6 LEDs Outputs 7 LED Piezo Resistor Configuration 8 Piezo connection 10 Physical Dimensions 12 Disclaimer 13 WTE...

Page 3: ...to a system and incorporates the MReX 460 Module For command use and detailed operation consult the MReX 460 User Manual Not shown is the antenna connection This may be an SMA connector fitted to the...

Page 4: ...Christchurch NZ MReX PCB User Guide V1 02 Electrical The following schematic shows how the MReX 460 module is routed to connection pads WTE Limited 2021 Christchurch New Zealand Page 4 of 13...

Page 5: ...trically tied to pin 7 7 Green LED Cathode open drain output 8 Green LED Anode not connected if LED is powered externally 9 Piezo This pin is electrically tied to pin 8 10 Contact Input 4 Connection t...

Page 6: ...loading configuration or uploading new firmware Do NOT apply voltage to this pin if batteries are fitted Note Serial connection is 3 3V TTL The MReX PROG USB to serial adaptor can be provided for seri...

Page 7: ...rminal screw or external connection ESD devices should be fitted If the output is to be used to control a small relay it is essential that a flyback diode is fitted across the coil of the relay Only t...

Page 8: ...ezo sounder is fitted R1 47R R2 is used by the piezo to improve audio response 1K typically The resistor fitted should ideally be selected to produced the greatest audio output R3 is used to limit cur...

Page 9: ...Christchurch NZ MReX PCB User Guide V1 02 WTE Limited 2021 Christchurch New Zealand Page 9 of 13...

Page 10: ...Christchurch NZ MReX PCB User Guide V1 02 Piezo connection The following images guide the connection of the piezo and required resistors WTE Limited 2021 Christchurch New Zealand Page 10 of 13...

Page 11: ...Christchurch NZ MReX PCB User Guide V1 02 WTE Limited 2021 Christchurch New Zealand Page 11 of 13...

Page 12: ...Christchurch NZ MReX PCB User Guide V1 02 Physical Dimensions Overall board dimensions WTE Limited 2021 Christchurch New Zealand Page 12 of 13...

Page 13: ...hat are imposed on importation No User Serviceable Components There are no user serviceable components within the product RoHS and WEEE Compliance MReX is fully compliant with the European Commission...

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