







Compute Module Industrial IoT Base Board
for Raspberry Pi Compute Module CM4S / CM3 / CM3+ Series
The Compute Module PoE 4G Board is an industrial grade IoT base board designed for Raspberry Pi Compute Module 4S / 3 / 3+ (not included). It features communication functions including global 4G/3G/2G cellular, PoE Ethernet, and WiFi wireless. There are also various industrial isolated interfaces such as CAN, RS485, RS232, ADC, and GPIO, which make it an ideal choice for sorts of industrial IoT applications.

Features
- Compatible with Raspberry Pi CM4S / CM3 / CM3+ series
- Adopts SIM7600G-H global 4G/3G/2G communication module
- 10/100M auto-negotiation Ethernet port, with PoE enabled
- Supports 2.4GHz WiFi wireless connection
- USB HUB and USB TO UART, allows connecting more USB devices
- Provides various industrial isolated interfaces: CAN/RS485/RS232/ADC/GPIO/RTC
- Onboard multi video/audio ports like HDMI/DSI/CSI
Specifications
Network | |
---|---|
Ethernet | 10/100M auto-negotiation Ethernet port, with PoE enabled, RJ45 connector |
Cellular | supports global 4G/3G/2G communication (via onboard SIM slot) |
WiFi | supports 802.11b/g/n, 2.4GHz |
Video / Audio | |
Camera | 2x CSI ports, can be used simultaneously |
HDMI | HDMI HD port |
Display | DSI port, for connecting Raspberry Pi DSI display |
Audio | 3.5mm audio jack, stereo output |
Speaker | 4PIN speaker connector, supports 8Ω 5W speaker |
Industrial Isolated Interfaces | |
1 × RS232 | DR9 (male), isolated, with TVS protection, anti-surge, and ESD protection |
1 × RS485 | screw terminal, isolated, with 600W lightningproof, anti-surge, and 15KV ESD protection, allows using 120Ω terminal resistor |
1 × CAN | screw terminal, isolated, lightningproof, and ESD protection, allows using 120Ω terminal resistor |
4 × GPIO | screw terminal, isolated, 2 channels as isolated input, 2 channels as isolated output |
1 × ADC | screw terminal, isolated, 16-bit, 860SPS |
Common used ports | |
2 × USB2.0 | USB type-A connector |
1 × USB SLAVE | for burning system image into Compute Module |
1 × USB TO UART | connects to Raspberry Pi serial port by default, configurable by jumper |
1 × RTC | real time clock |
1 × Micro SD card slot | for Micro SD card with pre-burnt system (CM4S Lite / CM3 Lite / CM3+ Lite only) |
1 × SIM slot | supports standard 4G/3G/2G cellular SIM card |
Other | |
Power supply | DC 7~36V wide voltage range input |
Designed For CM4S / CM3 / CM3+ series
Supports Raspberry Pi Compute Module CM4S / CM3 / CM3+ series
onboard various import resources, allows connecting display, camera, USB devices...

Note: Compute Module is NOT included.
Rich & handy interfaces
various industrial isolated interfaces: CAN/RS485/RS232/ADC/GPIO/RTC

PoE Ethernet, 4G cellular, WiFi connectivity
PoE power over Ethernet features, 802.3af-compliant
Global 4G/3G/2G cell communication, up to 150Mbps data rate
2.4GHz WiFi wireless connection

Aluminum alloy heatsink
effective heat dissipation

Application examples
suitable for Raspberry Pi applications where multiple peripherals are required
or other industrial context

What's on board


-
Compute Module socket
for connecting Raspberry Pi Compute Module CM4S / CM3 / CM3+ series -
PoE enabled Ethernet port
10/100M auto-negotiation, with PoE Power Over Ethernet features - USB Ports
- HDMI Ports
- 3.5mm audio jack
- Dual-channels speaker connector
-
USB SLAVE
allows you to burn system image into Compute Module -
USB TO UART
for serial debugging -
DC power input
supports 7-36V power supply -
DSI display port
for connecting Raspberry Pi LCD -
CSI camera port
for connecting Raspberry Pi Camera -
RTC real time clock battery holder
supports rechargeable Li cell ML1220 - 4G antenna connector
- WiFi antenna connector
-
Isolated ADC
ADC differential input -
Isolated 5V power
max output current 100mA -
Isolated GPIO
allows controlling / detecting devices via GPIO - Isolated RS485 interface
- Isolated CAN interface
-
Isolated RS232 interface
-
SIM slot
supports standard 4G/3G/2G SIM card -
Micro SD card slot
insert a Micro SD card with pre-burnt system, to start up CM4S Lite / CM3 Lite / CM3+ Lite variant -
SIM7600G-H communication module
supports 4G/3G/2G communication and GNSS function -
WiFi module
supports 2.4G WiFi connection - Buzzer
-
DS3231
high precision RTC chip, I2C bus -
Raspberry Pi indicator
ACT: Raspberry Pi operating status indicator
PWR: Raspberry Pi power indicator -
SIM7600G-H indicator
NET: network indicator
STA: status indicator -
User LED
handy for I/O output testing, or program running status monitoring - Serial port connection setting
- Volume adjustment
-
PoE configuration
DIS: disable PoE
EN: enable PoE - ADC chip power supply selection
- RS485 CAN terminal resistor selection
Outline dimensions

Resources
WIKI: Compute_Module_PoE_4G_Board
Package Contains:
Weight: 0.413 kg
- Compute Module PoE 4G Board x1
- Aluminum alloy heatsink x1
- Antenna x2
- Thermal tape x2
- Screwdriver x1
- 12V/2A power adapter x1

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