---
description: Rappel concernant les possibilités d'utilisation du TX IO 600-040
---

# Reminder

***

The TX IO offers Enless integrators different control possibilities. As a reminder, the TX IO has 2 contact-dry inputs and 4 controllable relay outputs. It can be used in 3 distinct modes which will be configurable from the server embedded in the transmitter.

By default, the TX IO is delivered ready to be used in remote control mode.

<table data-card-size="large" data-view="cards" data-full-width="false"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Remote control mode</strong></td><td>The TX IO outputs are controlled by commands from the receiver. The TX IO also reports the status of its inputs to the receiver. In remote control mode, the TX IO behaves like any other Enless transmitter (sending periodic messages) while having the possibility of receiving commands from the receiver to control its 4 relay outputs</td><td><a href="https://1476487362-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6K1Eig0GgGQy0i1G5s1V%2Fuploads%2Fo05aOe9tUI3GRbFj00Ig%2FEN_IO_Controle_Distance.png?alt=media&#x26;token=ba6a6690-89bb-465d-9c30-a5e81a5f2a78">EN_IO_Controle_Distance.png</a></td></tr><tr><td><strong>Local control mode</strong></td><td>The TX IO controls its relay outputs according to the status of its inputs. It can send reporting messages to the receiver. The TX IO can be configured to synchronize inputs to relay outputs with a configurable delay (to ensure that the relay does not instantaneously match if there is a momentary change in the input state).</td><td><a href="https://1476487362-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6K1Eig0GgGQy0i1G5s1V%2Fuploads%2F4aXqHcCtt9pGtUpTcjns%2FEN_IO_Controle_Local.png?alt=media&#x26;token=9fe253a2-42d8-4138-a36b-826143f9f609">EN_IO_Controle_Local.png</a></td></tr><tr><td><strong>D2D (Device To Device) mode</strong> </td><td>The TX IO communicates with LoRa Enless sensors (4 maximum) and controls its outputs according to the alarm thresholds configured on the sensors</td><td><a href="https://1476487362-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6K1Eig0GgGQy0i1G5s1V%2Fuploads%2FkMHUTjAnhv5PpbBcZrWd%2FEN_IO_D2D.png?alt=media&#x26;token=a898c90b-0f2e-4c42-b7c8-d6b2d3d6ef5e">EN_IO_D2D.png</a></td></tr></tbody></table>

{% hint style="info" %}
To change the mode of use of the TX IO, please access its configuration server (same procedure as for [accessing the receiver server](../../installation/access-to-the-server) ).
{% endhint %}
