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description: LED behavior of Enless sensors
---

# LED Sequence Meanings

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## <mark style="color:blue;">Phase 1 :</mark> Starting the sensor

<table><thead><tr><th width="215" align="center">LED</th><th align="center">Behavior</th></tr></thead><tbody><tr><td align="center"><mark style="background-color:red;">L1</mark> <mark style="background-color:orange;">L2</mark> <mark style="background-color:green;">L3</mark> + <mark style="background-color:green;">WAN</mark></td><td align="center">Flash successively</td></tr><tr><td align="center"><mark style="background-color:orange;">L2</mark></td><td align="center">Flash when sensor sends a message</td></tr></tbody></table>

## <mark style="color:blue;">Phase 2 :</mark> Installation status

<table><thead><tr><th width="225" align="center">Installation status</th><th width="171" align="center">Behavior of L1</th><th width="172" align="center">Behavior of L2</th><th align="center">Behavior of L3</th></tr></thead><tbody><tr><td align="center"></td><td align="center"><mark style="background-color:red;">L1</mark></td><td align="center"><mark style="background-color:orange;">L2</mark></td><td align="center"><mark style="background-color:green;">L3</mark></td></tr><tr><td align="center">Success strong signal</td><td align="center">OFF</td><td align="center">OFF</td><td align="center">ON <strong>(30s)</strong></td></tr><tr><td align="center">Success weak signal</td><td align="center">OFF</td><td align="center">ON <strong>(30s)</strong></td><td align="center">OFF</td></tr><tr><td align="center">Installation failed</td><td align="center">ON <strong>(30s)</strong></td><td align="center">OFF</td><td align="center">OFF</td></tr></tbody></table>

## <mark style="color:blue;">Phase 3 :</mark> Operation

<table><thead><tr><th width="383" align="center">LED</th><th align="center">Behavior</th></tr></thead><tbody><tr><td align="center"><mark style="background-color:red;">L1</mark></td><td align="center">Flash every 1 minute in the event of an alarm</td></tr><tr><td align="center"><mark style="background-color:orange;">L2</mark></td><td align="center">Flash on each frame send</td></tr><tr><td align="center"><mark style="background-color:green;">L3</mark></td><td align="center">Flash every 1 minute</td></tr></tbody></table>



{% hint style="info" %}
Do not power the sensors simultaneously. Power them one by one and wait for the previous one to be correctly activated before powering the next one.
{% endhint %}
