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Raspberry Pi CM4 Compute module 4 Dual network port four way isolation type Gigabit Ethernet USB 2.0


Date:2022-02-18 11:03
In Stock

Raspberry Pi 
CM4 Compute module 4 Dual network port four-way isolation type Gigabit Ethernet USB 2.0


For Raspberry Pi Compute Module 4 

Features At A Glance
  • CM4 : for all versions of Compute Module 4
  • Networking: Gigabit Ethernet RJ45 port × 1; Fast Ethernet RJ45 port × 1
  • USB: USB 2.0 Type A port × 2
  • Connector: Isolated RS485 × 4; Power Terminal × 1
  • Camera: MIPI CSI-2 interface × 2 (15pin 1.0mm FPC connector)
  • Video: HDMI interface × 1, support 4K 30fps output
  • Real Time Clock: with battery interface and ability to wake up Compute Module 4
  • Storage: Onboard Micro SD card slot (for versions without eMMC)
  • Fan: adjustable speed, 5V
  • Indicator light: power indicator × 1, CM4 status indicator × 1, user-defined indicator × 2, RS485 communication indicator × 8
  • Power input: 7-36V
  • Dimensions: 93.6 × 108.8mm
Connect to Compute Module 4 motherboard

Onboard standard CM4 connector, Supports access to Compute Module 4 Lite/eMMC series motherboards 

More rich interfaces

Equipped with dual network ports/RS485/CSI/FAN/HDMI/Micro SD/USB and other interfaces

Application example

Raspberry Pi application or other industrial applications for multi-channel RS485 communication

What's On Board

  1. CM4 connector
    Available for all editions of Compute Module 4
  2. IO-VREF
    Select GPIO logic voltage, selectable 3.3V (default) or 1.8V
  3. RTC-I2C: I2C bus selection for RTC
    Optional SDA0 & SCL0 (default) or GPIO2 & GPIO3
  4. RTC INT: RTC interrupt pin select
    D16: Use GPIO16 to receive interrupt signal when RTC generates interrupt (default)
    GL-EN: CM4 is powered off when RTC generates an interrupt
    PI-RUN: CM4 restarts when RTC generates an interrupt
  5. SYSTEM: System function
    WP-DIS: Prevent EEPROM from being overwritten
    BT-DIS: Disable bluetooth function, only works on CM4 version with antenna
    WIFI-DIS: Disable WiFi function, only valid for CM4 version with
  6. BOOT switch
    ON: Boot to USB Tpye-C interface
    OFF: Boot to eMMC or Micro SD card
  7. PWR & USB
    When the BOOT switch is "ON", it can be used as a programming port and a power supply interface
    When the BOOT switch is "OFF", it is only used as a power supply interface
  8. HDMI0
    HDMI display interface, support 4K 30fps output
  1. USB
    Two-way USB2.0 interface, support USB device insertion
    CM4 native Gigabit RJ45 Ethernet port
    USB expansion 100M Ethernet port
  4. CAM0 & CAM1
    Two MIPI CSI camera interfaces
  5. Buzzer
    GPIO22 control
  6. FAN
    Four-wire fan interface, only supports 5V fans, PWM speed regulation (GPIO18 control, no speed measurement)
  7. RTC battery interface
    Can be connected to CR2032 coin cell battery
  8. RS485 transceiver indicator
    TXn: Transmit information indicator for channel n
    RXn: Receive information indicator for channel n
  9. User LED light
    USER0: GPIO20 control
    USER1: GPIO26 control
  10. PWR
    Raspberry Pi power indicator
  11. ACT
    Raspberry Pi working status indicator
  12. DC 7~36V
    DC DC power supply interface
  13. Power supply terminal
    DC DC power supply terminal, support 7~36V wide voltage input
  14. RS485 terminal
    Four isolated RS485 interfaces, pitch 5.08mm
  15. Jumper cap
    Optional 120R Balance Resistor Jumper Cap
  16. RS485 mode switch
    Full-auto: automatic mode, the program operation is simple, the load capacity is weak
    Semi-auto: semi-automatic mode, need to manually switch the transceiver mode, high reliability, strong load capacity
  17. Encryption chip
    ATSHA204 encryption chip, which can perform multiple encryption to ensure data security and reliability
  18. Micro SD card slot
    For access to Micro SD card with system to start Compute Module 4 Lite 
Outline Dimensions