Raspberry Pi Compute Module 4 PoE Mini-Computer (Type B) (20257)

TheRaspberry Pi Compute Module 4 PoE Mini-Computer (Type B) (20257 ) is a kit that consists of a Base Board With PoE Feature (Type B) with PoE function and a specialized metal case with a fan, which allows you to assemble a full-fledged microcomputer based on the Raspberry Pi CM4 compute module (the compute module itself is not included in this kit). This kit allows you to create industrial-grade projects, including stereo vision projects based on Raspberry Pi.

Thanks to the wall-mount design of the case, it can be easily mounted on almost any surface.

The base board and the computing module are protected by a sturdy two-piece metal case. The case has openings for all major interfaces, including an external antenna (antenna not included). A cooling fan is built into the case for better heat transfer.

For your convenience, all places for external interfaces are labeled.

Main elements of the base board:

1. CM4 connector is suitable for all Compute Module 4 variants
2. 40PIN GPIO connector
3. BOOT selection.
-ON: CM4 will boot from the USB-C interface
BOOT -OFF: CM4 will boot from an eMMC or Micro SD card
4. Various function pins
5. USB Type-C power/programming connector
5V/2.5A power supply, also allows you to write the system image to Compute Module 4 eMMC variants
6. Status indicators.
-ACT: Raspberry Pi operating status indicator
-PWR: Raspberry Pi power supply indicator
7. DISP - 2 MIPI DSI display ports
8. CAM - 2 MIPI CSI camera ports
9. USB2.0 ports: 4 USB2.0 ports for connecting various USB devices
10. HDMI ports: 2 HDMI ports, supports dual 4K 30fps output
11. RTC battery holder supports CR1220 cell
12. FAN connector for connecting a cooling fan, allows you to adjust and measure the speed
13. PCIe Gen 2 × 1 connector for connecting PCIe Gen 2 × 1 modules
14. Gigabit Ethernet connector. Gigabit Ethernet RJ45 with PoE support, compatible with 10/100/1000M
15. 5V DC output
16. RS485 with 600W lightning protection, surge protection and 15kV electrostatic protection, additional 120R balancing resistor jumper changed
17. RS232 with TVS diode, overvoltage and ESD protection
18. Sound signal
19. selection of FAN_VDD/PoE
- voltage of the cooling fan drive: 12V or 5V
- PoE: enable (EN) or disable (DIS)
20. USB expansion chip FE1.1S
21. PCF52063ATL RTC chip
22. RTC / FAN
- I2C bus switch,
- SDA0/SCL0: I2C-10 in conjunction with CSI/DSI
- GPIO3/2: I2C-1 in conjunction with 40PIN connector
23. I/O logic level selection sets the CM4 logic I/O level as 3.3V or 1.8V
24. RTC interrupt configuration
- PI-RUN: CM4 will reboot after an RTC interrupt
- GN-EN: CM4 power down due to RTC interrupt
- D4: D4 pin is triggered by RTC interrupt
25. Insert a Micro SD card with a pre-recorded system into the Micro SD card slot to start the Compute Module 4 Lite

Overall dimensions: 114.6mm x 124.5mm x 32.9mm

Information for developers (Wiki): Compute_Module_4_PoE_Board_(B)

The package includes:

1. Compute Module 4 PoE (B) base board x1
2. Metal case (top and bottom) x1
3. PWM fan Fan-4010-PWM-12V x1
4. Screwdriver x1
5. Package of screws x1 pc
6. 5V 3A USB-C power adapter x1

Weight: 0.482 kg