Dual ETH Mini-Computer Compatible with Raspberry Pi Compute Module 4(NOT Included) Gigabit Ethernet 4CH Isolated RS485 USB2.0

Introduction Detailed parameter and function description. Product Description My name is CM4-ETH-RS485-BASE-B, which is an expansion board that can be used with Raspberry Pi Compute Module 4, and supports a 7-36V DC power supply and 5V DC power supply of Type-C interface. Onboard four isolated RS485 interfaces, 100M+1000M dual network ports, HDMI interface, two CSI interfaces, two USB interfaces, etc... Precautions for use Do not plug and unplug any device except USB and HDMI when it is powered on. Confirm the fan voltage before connecting, only support 5V. The Type C interface can be used as a power supply or as a USB interface to burn the image (need to use the DIP switch to switch). In order to ensure the normal power supply of CM4, please do not connect other devices when using the Type C interface to burn the image. When CM4 is in normal use, it needs to provide a 5V 2A power supply for CM4. Otherwise, there may be problems such as automatic shutdown, frequency reduction, and so on. USB2.0 is closed by default, if you need to open it, you need to add dtoverlay=dwc2,dr_mode=host in config.txt. PACKAGE CONTENT CM4-ETH-RS485-BASE-B x1 Metal case (top and bottom) x1 Fan x1 Screwdriver x1 Antenna connector rubber plug x1 Screws pack x1

• CM4-ETH-RS485-BAS-B is an expansion board that can be used with RPi Computing Module 4
• Supports 7-36V DC power supply and 5V DC power supply, C-type interface
• Onboard four isolated RS485 interfaces, 100M+100M dual network ports, HDMI interfaces, two CSI interfaces, two USB interfaces, etc
• Accurate cut with clear labels, fully aligned with the connector
• Equipped with a cooling fan and combined with airflow vents for better heat dissipation