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# Power supply

The MODBUS TX accepts a wide DC voltage range.

## Technical specifications

* Voltage range: 7.5 to 24 VDC.
* Typical consumption: 12V / 1A.
* Polarity: Wire <mark style="color:$danger;">**Red**</mark> (+) / Wire **Black** (-).

## Connection options

The installer has two methods for powering the device:

1. **Pre-installed wiring** : The product comes with a cable exiting through the cable gland. You can connect directly to this cable, following the color code (Red = Positive, Black = Ground/Negative).
2. **Custom wiring** : For a custom installation, it is possible to remove the original wiring. Unscrew the cable gland, remove the existing wires, and run your own power cable for a direct connection to the internal terminal blocks on the circuit board.

## Recommended accessory

For optimal reliability and simplified installation, Enless Wireless offers a dedicated mains power supply:

* Reference: **POWER 1000-002**
* Specifications: Regulated 12V power supply.

{% hint style="warning" %}
**Safety** : Before any work on the internal terminal block or modification of the wiring, make sure that the power source is**powered off**. Reversing the polarity can damage the receiver's electronic components.
{% endhint %}

{% hint style="danger" %}
To avoid any problems, please maintain 1A 12V at the TX Modbus power terminal block
{% endhint %}


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