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- SKU: 22555
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Dual ETH Mini-Computer For Raspberry Pi Compute Module 4 (NOT Included), Gigabit Ethernet, 4CH Isolated RS485, USB2.0
This is an 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.
User Manual / Datasheet / Example Codes etc.
Specifications
- CM4 SOCKET : suitable for all variants of Compute Module 4
- NETWORKING : Gigabit Ethernet RJ45 connector, 100M Ethernet RJ45 connector
- USB : USB 2.0 Type A × 2
- CONNECTOR : Isolated RS485 × 4, Power screw terminal × 1
- CAMERA : MIPI CSI-2 port × 2 (15pin 1.0mm FPC connector)
- VIDEO : HDMI port × 1, supports 4K 30fps output
- RTC : Real-time clock with battery socket and ability to wake Compute Module 4
- STORAGE : MicroSD card socket for Compute Module 4 Lite (without eMMC) variants
- FAN HEADER : allows speed adjustment, 5V
- INDICATOR : Power indicator × 1, CM4 status indicator × 1, User LED × 2, RS485 communication indicator × 8
- POWER INPUT : 7-36V
- DIMENSIONS : 123 × 98 × 32mm

Waveshare Dual ETH Quad RS485 Expansion Board Inside

Package Includes
- CM4-ETH-RS485-BASE-B x1
- Metal case (top and bottom) x1
- Fan x1
- 12V 2A Power Supply x1
- Screwdriver x1
- Antenna connector rubber plug x1
- Screws pack x1

More Rich Interfaces



Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)





