Raspberry Pi Compute Module 4 I/O PoE Board (B) (20157)

The Raspberry Pi Compute Module 4 is not included

Raspberry Pi Compute Module 4 I/O PoE Board (B) (20157 ) is a base board designed for the Raspberry Pi Compute Module 4. It features PoE Ethernet power over the Internet. The board contains industrial non-isolated interfaces such as RS485, RS232 and GPIO, making it an ideal choice for a variety of industrial applications.

Key features:

• Compatible with Raspberry Pi 4 computing module
• 10/100M/1000M auto-negotiating Ethernet port, with PoE enabled
• USB HUB, allows you to connect more USB devices
• Provides various isolated interfaces: RS485, RS232, GPIO, RTC
• Multiple video related ports such as HDMI, DSI, CSI

Specifications:

• CM4 SOCKET connector. Suitable for all variants of Compute Module 4
• Communication: Gigabit Ethernet RJ45 connector, integrates 802.3af compliant PoE circuitry (5V/2.5A)
• Connectors: Non-isolated RS485, non-isolated RS232, PCIe Gen 2 x1, I2C, GPIO
• USB port. 4x USB 2.0 Type A
• DISPLAY: Two MIPI DSI display ports (15-pin FPC 1.0 mm connector)
• CAMERA: Two MIPI CSI-2 camera ports (15-pin 1.0mm FPC connector)
• VIDEO. Two HDMI ports, support 4K 30 frames per second output
• RTC Real-time clock with battery compartment and wake-up option Compute Module 4
• STORAGE. MicroSD card slot for Compute Module 4 Lite variants (without eMMC)
• Cooling fan with adjustable speed, 5V/12V input
• POWER SUPPLY. 5V
• Overall dimensions. 124.5mm × 108.8mm

Interfaces (CSI/DSI/HDMI/USB/ETH/PCIe/RS232/RS485):

None Example of use:

Board elements:

1. Compute Module 4 connector for connecting the Raspberry Pi Compute Module 4
2. 40PIN GPIO connector
3. Selecting the LOAD
   ON: CM4 will boot from the USB-C interface
   OFF: The CM4 will boot from an eMMC or Micro SD card.
4. Various function pins
5. USB Type-C power/programming:
   5V/2.5A power supply,
   also allows you to write the system image to the computing module 4 eMMC option
6. Status indicators
   ACT: Raspberry Pi operating status indicator
   PWR: Raspberry Pi power indicator
7. DISP. 2 MIPI DSI display ports
8. CAM. 2x MIPI CSI camera ports
9. USB2.0 ports. 4 USB2.0 ports for connecting various USB devices
10. HDMI ports. 2 HDMI ports, support dual 4K 30fps output
11. RTC battery holder supports CR1220 type
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, 10/100/1000 Mbps
15. 5 V DC output
16. RS485 with 600W lightning protection, 15kV surge protection and ESD, optional 120R resistor balancing jumper
17. RS232 with TVS diode, overvoltage and electrostatic discharge protection
18. Buzzer
19. FAN_VDD / PoE selection.
    Voltage of the cooling fan drive: 12 V or 5 V
    PoE: enable (EN) or disable (DIS)

Overall dimensions: 124.5mm x 108.8mm

Information for developers (Wiki): Compute_Module_4_PoE_Board_(B)

Scope of delivery:

1. Compute Module 4 PoE Board (B) x1

Weight: 0.106 kg