一、接口示意图

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二、端口描述

1. 电源输入接口

12V 2A 电源DC头 5.5 2.0，请使用配套电源。

2. HDMI 输入

支持 HDMI2.0 、HDMI 1.4b 输入，

HDMI2.0 支持 RGB/YCbC4:4:4、RGB/YCbC4:2:2、YCbC4:2:0  2160P@60HZ;

HDMI1.4b 支持 CEA-861-E 1080p@120Hz;

支持 HDCP2.3 and HDCP1.4

3. HDMI 输出

HDMI2.1 输出，Type-A 连接器，最高输出4K@60Hz，（安卓固件，用一个HDMI输出时，可显示8K）

支持RGB, YCbCr 4:4:4, YCbCr 4:2:2 and 8/10 bit

支持 RGB/YUV(up to 10bit)

支持HDCP2.3和DSC 1.2a

4. DP 输出

DP 1.4a 输出，4Lanes 最高输出4K@60Hz。（安卓系统，单独DP 输出时，可支持8K@30HZ）

支持RGB/YUV(up to 10bit)

支持HDCP2.3, HDCP 1.3

5. 以太网*2

通过一个 RJ45 接口引出； 支持 10/100/1000Mbps 数据传输速率。

网线请使用Cat5e（超五类）网线，网线长度不能超过50M，才能保证网络稳定。

避免网线由室外接入网线，室外网线容易受雷击。

6.RS232、RS485、Relay Switch 、12V PW out口

RS485—ttyS0

RS232--- ttyS3

RelayControl---GPIO1_D2_d

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7.POE 电源接口

可以外挂POE模块，实现以太网POE供电

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8-9 .备用GPIO 端口

连接器是2.0MM 1*5P 板对线 wafer 连接器,接口定义如下：

使用时请注意端口电平一致，电平电压不一样会损坏CPU。

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10. WIFI

PCIE WIFI 6 模块，支持双发双收. 802.11a/b/g/n/ac/ax 

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11-12. SATA 接口

SATA 3.0 接口，只支持5V

电源的硬盘或SSD。SATA为标准的7Pin SATA3.0接口。

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13. M.2 PCIE 接口

M.2

M-Key PCIE3.0 此接口预留80MM长的扩展卡，可扩展 SSD、边缘计算卡。为4线Pcie3.0。

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15. USB3.0

A型 USB3.1 Gen1 Host，数据速率高达 5Gbps, 对外输出电流 500mA

16-17. USB2.0

2路 A型 USB2.0 Host，数据速率高达 480Mbps，对外输出电流 500mA

18. Type-c USB

支持USB3.0 OTG，可用于固件烧录，支持DP1.4a输出，最大可达4K@60Hz。（有些版本固件关闭了DP功能）

19 .Audio口

集成ES8323S Codec，可实现声音输出和MIC输入，接口为标准的3.5MM4节国际标准接口

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20. Power 按键

主要功能是作为系统的开关机按键和休眠按键来使用。当运行的系统是 Linux 时，该按键主要用作系统开关机按键。当运行的系统是 Android 时，该按键主要用作系统休眠按键。

并带工作指示灯

21-22 .备用USB2.0

为USB2.0 Host口，接口定义如下
连接器是2.0MM 1*4P 板对线 wafer 连接器,接口定义如下：

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23. 4G 模块接口

4G 模块接口，配置是MINI Pcie 连接器，SIM 为Nano卡，有卡托，如果需要4G版本，请在订单中选择4G版本。

24. 备用电源接口

连接器是2.0MM 1*4P 板对线 wafer 连接器,接口定义如下：

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25. Recovery 按键

Recovery按键，主要是方便系统进入 Recovery 模式，来对 EMMC 进行镜像烧录/下载。
使用方法是：打开瑞芯微开发工具，断电状态下先从 Type-C OTG 口插入数据线，先摁住Recovery按键不放，然后接入12V电源，当电脑瑞芯微开发工具界面提示识别到 Recovery 设备时，即可松开按键，进行下一步的镜像烧录。
可参照固件烧录章节。

26 .Reset 按键

主要功能是作为系统的复位重启。在任何状态下按下此键都会断电重启系统。

27.Debug 端口

波特率：1500000bps 电平：3.3V
连接器规格 2.0MM 3P

30 .Maskrom 按键

MaskRom按键，主要是方便系统进入 MaskRom 模式，来对 EMMC 进行镜像烧录/下载。
对于固件损坏不进系统可以按此键进行固件烧录。
使用方法是：打开瑞芯微开发工具，断电状态下先从 Type-C OTG 口插入数据线，先摁住MaskRom按键不放，然后接入12V电源，当电脑瑞芯微开发工具界面提示识别到 MaskRom 设备时，即可松开按键，进行下一步的镜像烧录。
可参照固件烧录章节。

10. Wi-Fi

PCIe Wi-Fi 6 module, 2×2 MIMO, compliant with 802.11a/b/g/n/ac/ax standards.
 

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11-12. SATA Interface

SATA 3.0 interface, only compatible with hard drives or SSDs powered by 5V. It adopts standard 7-pin SATA 3.0 connector.
 

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13. M.2 PCIe Interface

M.2 M-Key PCIe 3.0 interface, reserved for 80mm-length expansion cards. It supports expansion of SSDs and edge computing cards, featuring 4-lane PCIe 3.0.

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15. USB 3.0

Type-A USB3.1 Gen1 Host interface with a maximum data rate of 5Gbps and output current of 500mA.

16-17. USB 2.0

Two Type-A USB2.0 Host ports. Maximum data rate is 480Mbps, with 500mA output current per port.

18. Type-C USB

Supports USB3.0 OTG for firmware flashing. It also features DP 1.4a output up to 4K@60Hz. (The DP function is disabled on certain firmware versions.)

19. Audio Port

Equipped with integrated ES8323S audio codec, supporting audio output and microphone input. Adopts standard 3.5mm 4-pin TRRS connector.

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20. Power Button

It serves as the power on/off and sleep button. On Linux system, it is mainly used for power control. On Android system, it functions primarily as the sleep button.
 This button is equipped with a working indicator LED.

21-22. Spare USB 2.0

USB 2.0 Host ports. They adopt 2.0mm 1×4P board-to-wafer connector. The pin definition is shown below:

It serves as the power on/off and sleep button. On Linux system, it is mainly used for power control. On Android system, it functions primarily as the sleep button.This button is equipped with a working indicator LED.

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23. 4G Module Interface

Adopts Mini PCIe connector. It supports Nano SIM card with card holder. Please select the 4G version when placing orders if 4G function is required.

24. Spare Power Interface

Equipped with 2.0mm 1×4P board-to-wafer connector. The pin definition is as follows:
 

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25. Recovery Button

This button is used to enter Recovery mode for eMMC image flashing and downloading.
Operation steps: Launch Rockchip Development Tool. With the device powered off, connect the data cable to the Type-C OTG port. Press and hold the Recovery button, then connect the 12V power supply. Release the button once the tool detects the Recovery device, then proceed with image flashing. Refer to the firmware flashing section for details.

26. Reset Button

Used for system reset and reboot. Pressing this button will power cycle and restart the system under any operating status.

27. Debug Port

• Baud rate: 1500000 bps
• Logic level: 3.3V
• Connector: 2.0mm 3-pin

30. MaskRom Button

This button is used to enter MaskRom mode for eMMC image flashing and downloading. It is applicable for firmware recovery when the device fails to boot up.
Operation steps: Launch Rockchip Development Tool. With the device powered off, connect the data cable to the Type-C OTG port. Press and hold the MaskRom button, then connect the 12V power supply. Release the button once the tool detects the MaskRom device, then proceed with image flashing. Refer to the firmware flashing section for details.