CM4-DUAL-ETH-BASE Raspberry Pi Compute Module 4 base board

CM4-DUAL-ETH-BASE Raspberry Pi Compute Module 4 Base Board

CM4-DUAL-ETH-BASE is a base board that can be used with the Raspberry Pi Compute Module 4 and supports 7~36V DC power input. It features three USB 3.2 ports, two gigabit Ethernet ports, and is suitable for scenarios requiring multiple network ports, such as for software routing.

Specifications:

• Model: CM4-DUAL-ETH-BASE rev3 (SKU: 19838)
• CM4 socket: Compatible with all variants of Compute Module 4
• Ethernet: Two RJ45 gigabit Ethernet ports
• USB: USB 3.2 Gen1 × 3
• Pin header: 40PIN GPIO header × 1
• DSI display: MIPI DSI display port × 1, 15-pin 1.0mm FPC connector
• CSI camera: MIPI CSI-2 camera port × 2, 15-pin 1.0mm FPC connector
• HDMI: HDMI × 2, supports 4K 30fps output
• RTC: Real-time clock module with battery slot, capable of waking the Compute Module 4
• TF card slot: TF card slot for Compute Module 4 Lite (without eMMC)
• Fan: 5V/12V, allows for speed setting and measurement
• Power input: 7V-36V
• Dimensions: 109.0 × 91.5 mm (4.29 × 3.60 in)

Usage Precautions

1. Do not connect or disconnect any devices other than USB and HDMI while the unit is powered on.
2. Before connecting a fan, check its voltage. It supports 5V and 12V, with the default being 12V. Change the resistance of FAN_VCC when switching.
3. The Type-C interface is used only as a USB SLAVE for system image loading and cannot be used as a power source.
4. To ensure proper power for CM4 while loading an image via Type-C, do not connect any additional devices.
5. During normal operation, CM4 requires at least 18W of power. Otherwise, issues like automatic shutdown or reduced performance may occur.
6. Refer to the manual for using OpenWrt.
7. This expansion board does not support POE functionality.

Datasheet and Files: https://www.waveshare.com/wiki/CM4-DUAL-ETH-BASE