---
title: "ionode4 Panel Connections and Control LEDs – nnounce"
slug: "features-ionode4"
description: "Relay outputs, supervised inputs, balanced audio, USB-C and two PoE LAN ports, plus six status LEDs."
updated: 2025-05-16T11:25:48Z
published: 2025-05-16T11:25:48Z
canonical: "docs.simpleway.cloud/features-ionode4"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.simpleway.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# Features

DescriptionFront and rear panel description of control LEDs, ports and connectors.

---

| **A.** **Front panel** The front panel has 3 control LEDs: 1. status 2. network 3. signal | ![](https://cdn.document360.io/a3e67867-6316-451b-94ad-ec727ac9102a/Images/Documentation/ionode4.png) |
| --- | --- |
| **B.** **Rear panel** Description from left to right. 1. Barrel jack power connector 2. Control outputs (relay C, NC, NO pins) 3. Supervise control inputs (0-12 V input tolerance, 12 Vref) 4. Balanced audio output channels 5. Balanced audio input channels 6. USB-C (for service purposes, firmware update) 7. Control LEDs 8. Reset button 9. LAN A with PoE 10. LAN B with PoE **Note:** The two LAN switches allow simultaneous connection to the audio and control networks, or the second LAN can be used for a redundant network. | ![](https://cdn.document360.io/a3e67867-6316-451b-94ad-ec727ac9102a/Images/Documentation/ionode4_zadni%20strana(1).png) Control LEDs on the left-side from the LAN: - status - network - signal - switched - inputs - outputs |

The **product sticker** on the bottom of the device contains the MAC address required for device pairing.

## Control LEDs

Front panel and rear panel LEDs are aligned, the description below is valid for both.

| **Status** | Device status: - Red LED light indicates booting of the device. - Yellow LED light indicates that the operating system successfully booted and services are starting. - Green LED indicates all services are up and running. |
| --- | --- |
| **Network** | Network connection availability check: - LED light is off, no network connection. - Blue LED light when auto mode active and no IP obtained from DHCP. Device available only through IPv6 link local. - Green LED light when at least one active interface is available with correct IP address. NOTE: The indicator is not available until all services are in operation. |
| **Signal** | Green LED lights up if DSP and the design are running. NOTE: The indicator is not available until all services are in operation or the DSP design is empty or missing. |
| **Outputs** | Green LED lights up if at least one output contact is closed. NOTE: The indicator is not available until all services are in operation. |
| **Inputs** | Green LED lights up if at least one input contact is closed. NOTE: The indicator is not available until all services are in operation. |
| **Switched** | Reserved for future use. |