---
title: LS424 Hardware Interfaces
slug: hardware/ls424-hardware-interfaces
docTags: 
createdAt: 2025-03-11T07:10:54.521Z
---

This section describes the characteristics and operation of all connectors on the LS424.

# Ethernet

The LS424 has an RJ45 connector for 100BASE-TX networking. The maximum length for Cat 5E cable is 100 meters; the allowed length can be higher or lower depending on the quality of the cable.

802.1x is supported on the ethernet port, but not on USB-connected ethernet devices.

# Power Connector

The power connector for the LS424 is a USB Micro-B port rated for 5V\@2A. The connector is used for power input only—it does not transfer data.

# USB

The LS424 has a USB 2.0 Type-C port, which is capable of transfer speeds up to 480 Mbit/s. 

The USB connector can supply up to 0.5A of power for peripherals.  The maximum length for a USB cable is 5 meters.

The USB Type-C port will output analog audio if the CC1 or CC2 signal is shorted to ground via a 1K resistor. Analog output can also be enabled in system software. The Dp signal outputs right audio, and the Dn signal outpts left audio.

## USB 2.0 Type-C Pinout

The following table illustrates the pinout of the USB 2.0 Type-C host port:

::Iframely{originalUrl="https://docs.google.com/spreadsheets/d/1sLqt0HYIzdpvpqhY59M23xkV4jiqLwxo9Yp5PAOyW-Y/edit?usp=sharing" embedUrl="https://docs.google.com/spreadsheets/d/1sLqt0HYIzdpvpqhY59M23xkV4jiqLwxo9Yp5PAOyW-Y/edit?usp=sharing" title="USB 2.0 Type-C Pinout" html="<div style=&#x22;left: 0; width: 100%; height: 0; position: relative; padding-bottom: 77.2727%;&#x22;><iframe src=&#x22;https://docs.google.com/spreadsheets/d/1sLqt0HYIzdpvpqhY59M23xkV4jiqLwxo9Yp5PAOyW-Y/preview?usp=embed_googleplus&#x22; style=&#x22;top: 0; left: 0; width: 100%; height: 100%; position: absolute; border: 0;&#x22; allowfullscreen></iframe></div>"}

## USB Serial 

The serial port supports TTL signaling and is located on the the A2/A3 and B2/B3 pins. It enumerates as port 0.

The serial port is disabled by default. It can be enabled/disabled by writing to the player registry using BrightScript (via [roRegistrySection](docId\:FfM73tjd_BThW4-P-0JVG)) or JavaScript (via [registry](docId\:tXWoOMbD2-u12dfegX7gA)):

### Enable Serial

```text
registrySection = CreateObject("roRegistrySection", "usb")
registrySection.Write("type_c_serial","1")
```

### Disable Serial

```text
registrySection = CreateObject("roRegistrySection", "usb")
registrySection.Delete("type_c_serial")
```

:::hint{type="success"}
The serial port can also be enabled by accessing the [Debug Console](docId\:YWkSi6X-2hez1BwztfHMP) but, unlike the above method, the serial port will not remain enabled after a reboot.
:::

# HDMI Output

The HDM&#x49;**®** output is an HDMI 1.4a connector used to send digital video and audio to HDMI-enabled sink devices. It is capable of outputting a maximum video resolution of 1920x1080x60p.

The following table illustrates the pinout of the HDMI connector:

| **pin** | **Description**       | **pin** | **Description** |
| ------- | --------------------- | ------- | --------------- |
| 1       | TX2p                  | 2       | Ground          |
| 3       | TX2n                  | 4       | TX1p            |
| 5       | Ground                | 6       | TX1n            |
| 7       | TX0p                  | 8       | Ground          |
| 9       | TX0n                  | 10      | TXCp            |
| 11      | Ground                | 12      | TXCn            |
| 13      | CEC                   | 14      | NC              |
| 15      | DDC SCL               | 16      | DDC SDA         |
| 17      | Ground                | 18      | +5V DDC         |
| 19      | HPD (Hot Plug Detect) | --      |                 |