# Connecting power and network

Before powering on the Efento Ethernet Gateway, please ensure that all [safety and installation guidelines](/efento-gateways/important-information/safety-guidelines.md) have been followed. Proper preparation helps prevent hardware damage and ensures stable operation from the moment the device starts up.

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### **Connect the antenna**

Always connect the antenna **before** powering on the gateway. Operating the device without the antenna attached may cause damage to the internal radio module or reduce communication performance.

<figure><img src="/files/VG675KVMUyZmD21i7mzn" alt="" width="325"><figcaption></figcaption></figure>
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### **Connect the power source and Ethernet cable**

The Efento Ethernet Gateway supports two power supply options:

#### **5V USB power supply**

A USB power supply is included with the gateway. Connect the power adapter to the **USB-C port** on the back panel of the device. **You will also need to connect an Ethernet cable to provide network communication for the gateway.** Once connected to a power source, the gateway will **turn on automatically**.

<figure><img src="/files/VA62Q92ksEzMGUcD5gBI" alt="" width="325"><figcaption></figcaption></figure>

#### **Power over Ethernet (PoE)**

In this setup, both power and Ethernet communication are delivered through the same twisted-pair cable. Simply connect the Ethernet cable to the gateway - no separate power adapter is required. If you plan to use PoE, ensure that your router or switch supports the PoE standards **802.3af / 802.3at Type 1** or **PoE+ (802.3at Type 2)**. Once connected to a power source, the gateway will **turn on automatically**.

<figure><img src="/files/9uSGBApQD4cFm1taXj9A" alt="" width="325"><figcaption></figcaption></figure>
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### **Confirm startup and configuration mode**

When powering on a gateway that has not been configured before, it automatically enters **configuration mode**. In this mode, the device can be configured using either the **Efento mobile app** or a **web browser**.

* Configuration mode is indicated by a **blinking orange LED**.
* This mode remains active for **2 minutes**.

To re-enter configuration mode at any time, press the button located on the **back panel** of the gateway **twice**.

<figure><img src="/files/aiUAhJAXLsl5O0XaSAP9" alt="" width="325"><figcaption></figcaption></figure>
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### You can now configure your gateway

Configure the Efento Ethernet Gateway to send the data to:

* [Efento Cloud](/efento-gateways/lte-gateway/configuration-with-efento-cloud.md)
* [a custom server](/efento-gateways/ethernet-gateway/configuration-with-a-custom-server.md)
  {% endstep %}
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