跳转到主要内容

C1902 Introduction

Banner Image

产品简介

The C1902 is a development board specifically designed for Jetson Orin Nano & NX modules. Built on a standard board design, it fully supports the official developer kit's features, including full-speed USB3.0 and Type-C ports.

产品正面图

正面


产品背面图

背面


产品特点

  • C1902 was developed based on the original manufacturer's solution, with all interface functions matching the original manufacturer's and supporting direct firmware flashing via Developer Kit

  • Compatible with NVIDIA® Jetson Orin Nano (4GB/8GB) and Orin NX (8GB/16GB) modules.

  • Premium 8-layer gold-plated PCB with full MLCC capacitors and gold-plated connectors

  • Supports M.2 NVMe SSD and M.2 Wi-Fi module

版本迭代记录

Version

Date

Description

V1.0

2024 Q3

The first version of C1902

V1.1

2025 Q1

1. Fixed a GPIO issue that previously caused pins 12/35/38/40 to be unavailable under the original device tree.

2. Enhanced support for the SUPER mode across the entire ORIN NANO/NX series

V1.1.1

2025 Q2

3. Modify the DC power input socket specifications from DC5521 to DC5525

产品规格

Supply Voltage

12V (compatible with 9-19V)

Operating Temperature

0~45

Supported Module

Orin Nano 4G/8G

Orin NX 8G/16G

Power Connector

DC5525

Ethernet

1x Gigabit Ethernet Socket (RJ45)

Wireless Network Adapter

1x M.2 Key E

External Storage

2x M.2 Key M (NVME SSD)

DisplayPort

1x DP V1.2

USB

4x USB3.2 (10Gbps)

USB C

1x Type C (USB3.0)

Camera

2x CSI-22P

Other

Consistent with original specs

RTC

support

POE

not supported

  •  The carrier board requires a 12V(compatible with 9-19V) 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.

  • This product includes reverse-polarity protection. Nevertheless, do not connect the power supply in reverse.

  • The over-current protection (OCP) threshold for all USB ports is 2.5A. Exceeding this limit will trigger an automatic shutdown of the power output.
  • 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.


功能对比:


Original

C1901 V1.3

C1902 V1.1

Supply Voltage

19V

12V (compatible with 9-19V)

12V (compatible with 9-19V)

Power Connector

DC5525

DC5521 (compatible with DC5525)

DC5525

Ethernet

1x Gigabit Ethernet Socket (RJ45)

1x Gigabit Ethernet Socket (RJ45)

1x Gigabit Ethernet Socket (RJ45)

Wireless Network Adapter

1x M.2 Key E

1x M.2 Key E

1x M.2 Key E

External Storage

2x M.2 Key M

2x M.2 Key M

2x M.2 Key M

Display

1x DP V1.2

1x HDMI (1080P)

1x DP V1.2

USB

4x USB3.0

3x USB3.0+1 xUSB2.0 (requires device tree modification)

4x USB3.0

USB C

1x Type C (USB3.0)

1x Type C (USB2.0)

1x Type C (USB3.0)

Camera

2x CSI-22P

2x CSI-22P

2x CSI-22P

RTC

Not Supported

Supported

Supported

Other

-

Match the original

Match the original

POE

Supported (Not Populated)

Not Supported

Not Supported

SUPER

 Mode

Only ORIN NANO series is supported

Only ORIN NANO series is supported

Supports the ORIN Nano/NX series


接口布局

接口布局图1

1

Power Jack

9

Camera (#0) Connector (22p, 0.5 mm)

2

DP Connector

10

Power Button

3

USB 3.0 Type A(x2 Stacked)

11

Button Header (1x12, 2.54 mm)

4

USB 3.0 Type A(x2 Stacked)

12

CAN Bus Header (1x4, 2.54 mm)

5

RJ45 Ethernet Socket

13

Fan Header

6

USB Type C

14

40-pin Expansion Header(2x20, 2.54 mm)

7

Jetson Orin Module Connector

15

Power LED

8

Camera (#1) Connector (22p, 0.5 mm)

 

 

接口布局图2

16

RTC Socket

18

M.2 Key M Socket (4-lane)

17

M.2 Key E Socket (75-pin)

19

M.2 Key M Socket (2-lane)


部分功能说明
  • Power Button (10): The C1902 incorporates an additional function button not present on the reference board. Its operation is as follows:

    System Running:A short press enters the shutdown menu; a long press (10 seconds) forces a power-off.When the system is off: press once to power on.

    System Off:A short press powers on the system.

  • Expansion Header (14): The 40-pin GPIO header provides a 5V output rail with reverse current protection. It supports a maximum current of 0.8A and is safeguarded by over-current protection (OCP), which automatically disables the output upon detecting a fault. Actual performance depends on the specific system-on-module (SOM) in use. Please refer to the specifications below.

GPIO定义图

Reference link: https://jetsonhacks.com/pinouts/

  • The 12Pin Header (11) is defined as follows: 

12Pin定义图

  • The RTC battery port (16) on the C1902 board features an additional MX1.25-2P connector compared to the original factory board. When using RTC batteries, ensure correct polarity and avoid reverse connections.

image.png

After connecting the battery, configure the device to enable RTC clock. For details on RTC configuration and UART interface usage, please refer to RTC 说明


产品尺寸 (mm)

产品尺寸图

Screw Location

Recommended Specification

Note

Carrier Board Mounting Holes

M2.5 screws or standoffs

The diameter of the screw or standoff must not exceed 5mm.

Module

M2.5 × 4 pan head screws

 

Hard Drive & Network Card

M2.5 × 4 pan head screws

Pan head screws are recommended.

技术支持