C2401 Inroduction Introduction The C2401 is a compact, high-density carrier board designed for NVIDIA Jetson Orin Nano/NX modules. It boasts comprehensive connectivity options, including dual Ethernet ports, dual USB ports, and expansion support for 4G/5G modules. Its space-saving stacked design ensures excellent ease of integration. 正面 背面 Features   Equipped with an advanced automotive-grade E-fuse chip, providing comprehensive protection against over-voltage, under-voltage, short-circuit, over-current, and reverse polarity. Utilizes an ultra-low-resistance Buck chip, matched with an advanced alloy flat-wire inductor, featuring low heat generation and high saturation current characteristics to ensure stable power supply to the module. Features an 8-layer, 2u gold-plated, via-in-pad (VIP) process PCB, combined with a compact, high-density design, resulting in an external dimension of only 55x92mm. Rich peripheral interfaces, including dual USB 3.0 ports and dual network ports (Ethernet). One of the 2.5G ports supports the PTP (Precision Time Protocol) and high-density jumbo frames up to 16K bytes. The M.2 interface is designed on the same side for excellent accessibility and practicality. This allows for the replacement of the Wi-Fi card or solid-state drive (SSD) without needing to dismantle the module. It also includes a secondary development interface for expansion, such as 4G/5G network adapter. 产品规格 Supply Voltage 12V (compatible with 9.5V-30V) Power Connector XT30 interface Supported Module Orin Nano 4G/8G Orin NX 8G/16G Ethernet 1x Gigabit Ethernet Socket (RJ45) , supports 9KB   jumbo frames 1x 2.5G Ethernet Socket (RJ45) , supports 16KB jumbo frames and PTP protocol Wireless Network 1x M.2 Key E （ 2230 ）   External Storage 1x M.2 Key M (2230 NVME SSD) DisplayPort 1x Mini HDMI V2.1 USB 2x USB3.2 (10Gbps) 1xUSB2.0(GH1.25-4p) USB-C 1x Type C (USB 2.0) for firmware flashing Camera 1x CSI-22P Other UART, CAN, I2C RTC 1x RTC backup clock battery interface Operating Temperature 0℃~45℃ l The carrier board requires a 12V(compatible with 9.5-30V) DC power supply. To ensure normal system operation, a power adapter with sufficient current output must be used. Additionally, under high load conditions with an input voltage exceeding 15V, adequate heat dissipation must be provided to prevent overheating. l This product includes reverse-polarity protection. Nevertheless, do not connect the power supply in reverse. l The overcurrent protection (OCP) threshold for all USB ports is 2.5A. Exceeding this limit will trigger an automatic power-off. l In contrast to the original M.2 2230 interface, the backplane's network interface now features a symmetrical layout. Do not hot-swap the module. Always power off the board before inserting or removing the module. Failure to do so may damage the module and the carrier board. Damage caused by improper operation is not covered under warranty. Interface Layout 序号 名称 序号 名称 1 XT30 Power Jack 11 USB2.0 Connector (GH1.25 4p) 2 Mini HDMI  12 UART2 Connector (GH1.25 4p) 3 USB Type C (USB2.0) 13 UART1 Connector (GH1.25 4p) 4 REC Button  14 CAN Bus (GH1.25 2p) 5 Power Button  15 RTC  6 PWM Fan 16 4Pin Switch 7 USB 3.0 Type A 17 Camera (#1) Connector 22pin 0.5mm 8 RJ45 1 (2.5G) 18 30Pin Expansion Interface 9 RJ45 2 (1000M) 19 M.2 M-key (2230) 10 Jetson Orin Module Interface (SODIMM) 20 M.2 E-key  (2230) Partial Features and Interfaces Power interface (1) The power interface uses the XT30PW-M36 connector, paired with the XT30U-F connector, as defined below. l The recommended input voltage is 12V, and the supported voltage range is 10V-30V. The under-voltage protection(UVP) voltage is 9.5V, and the over-voltage protection(OVP) is 31V. l The interface has reverse protection, but always verify the power polarity before connecting the power supply. l When using the ORIN NANO series, ensure the input power supply has a minimum output capacity of 45W. For the ORIN NX series, ensure the input power supply has a minimum output capacity of 60W. Module Recommended power output USB-C PD Supported Power Modes ORIN NANO 4G/8G 45W Minimum 20V 2.25A protocol ORIN NX 8G/16G 60W Minimum 20V 3A protocol REC Button (4) The C2401 carrier board supports two methods for entering recovery mode ： When the power is off, press the REC button and turn on the power to enter recovery mode for operations like flashing. (Note: Recovery mode lasts only 60 seconds. The system will automatically resume normal startup after detecting no connection.) Set the DIP switch 3 on the back of the carrier board to ON, enabling the system to automatically enter recovery mode upon each power-on. Power Button (5) l The C2401 unit is equipped with a power button (5) that performs the following functions:   When the system starts: Press once to enter the shutdown interface, and hold for   10 seconds to force shutdown.   When the system is shutting down: press once to start up. Disable automatic startup: Set the DIP switch 2 on the back of the board to ON to disable automatic power-on. Manually press the power button to power on. Expansion Header (18) This is a 2x15-pin, 1.27mm pitch female header . Pin 1 location and pin definitions are as follows: l  The VCC IN voltage matches the input voltage (Pass-through), with a max current of 3A. VDD_5V and VDD_3V3 provide up to 1A each. l The I2C, GPIO, SPI, and UART pins operate at 3.3V .. l PG signal: Outputs a high level (Active High) when the module is operating normally. l USB 3.0 ports 13, 15, 19, and 21 are disabled by default in the official firmware. To enable them, please refer to the tutorial at: https://www.linkzeelabs.com/wiki/books/jetson-orin-nano/page/orin-nanonx-usb CSI Interface (17) For the CSI camera interface usage tutorial, please refer to: https://www.linkzeelabs.com/wiki/books/jetson-orin-nano/page/b534b USB, Serial Port, and CAN RTC battery port (15):   MX1.25-2P connector. When installing a battery, ensure correct polarity. Note: Software configuration is required to enable the RTC after installation. l The CAN interface (14):   GH1.25-2P connector. Default state: No termination resistor. Set DIP switch 1 to ON to enable the built-in 120 Ω termination resistor. UART (12) and (13):   GH1.25-4P connectors with 3.3V logic levels . UART2 is reserved for DEBUG mode . The 5V output supports a maximum current of 0.5A. The USB2.0 port (11): GH1.25-4P connector. Supports a maximum 5V output current of 0.5A. For details on RTC configuration and UART interface usage, please refer to  https://www.linkzeelabs.com/wiki/books/jetson-orin-nano/page/3c778 RJ45网口 千兆网口 (8)： 使用与原厂一致的 RTL8111千兆网卡 芯片，无需额外调试驱动。 2.5G网口 (9)： 使用 RTL8125 2.5G网卡 ，启用需要额外安装驱动，具体说明参考 有线网卡驱动设置 。  Mechanical Dimensions (Unit: mm) Screw Location ​ Recommended Specification ​ Note ​ Carrier Board Mounting Holes M2 screws or standoffs The diameter of the screw or standoff must not exceed 4.5mm. Module M2.5 × 4 pan head screws The diameter of the screw or standoff must not exceed 5mm. Hard Drive & Network Card M2.5 × 4 pan head screws Pan head screws are recommended. Kit Dimensions (Unit: mm) 技术支持 Jetson Orin C2401 刷机教程 Jetson 基础教程 JetPack 配置说明 Jetson AI 视觉教程 Jetson 大模型教程