G70 Wiring Guide - DM RFID Reader
Written by Daan de Waard
Updated at December 17th, 2025
Table of Contents
This guide provides instructions for integrating the G70 with a Digital Matter RFID Reader ensuring correct wiring connections.
DM RFID reader connection
RFID Reader pin out
| DM RFID Wire | Function |
| Red | External Vin (5 volts) |
| Black | Common Ground |
| Green | TTL Rx pin |
| Purple | TTL Tx pin |
Connector Options
- Cut Off Molex Connector: You can cut off the Molex connector from the RFID Reader and wire it directly to the corresponding pins on the G70 harness.
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Add Male Molex Connector: Alternatively, add a male Molex connector to the G70 harness to interface with the RFID Reader's connector. The G70 does not come with a 4-way Molex connector pre-fitted. If this is the desired connection method, please source your own 4-way Molex connector. The part details and number below:
| 4 way Molex connector | Micro fit 3.0 plug housing, dual row with panel mount ears, halogen-free, 4 Circuits | Part Number: 43020-0400 Mouser Link |
Detailed Wiring Instructions
Here’s how you can wire the RFID Reader directly to the G70 harness:
- DM RFID Red Wire: 5v +/- external power is required Use this to power the RFID Reader.
- DM RFID Black Wire: Connects to a common ground.
- DM RFID Rx Green Wire: Connects to the G70 Brown wire TTL Tx.
- DM RFID Tx Purple Wire: Connects to the G70 Purple wire TTL Rx.
