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    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)
    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)
    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)
    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)
    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)

    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)

    WS-21666
    63,48 €

    52.90 € bez DPH

    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)

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    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)

    Dual ETH Quad RS485 Base Board (B) For Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485, USB2.0

    Dual ETH Quad RS485 Base Board For CM4

    Designed For Raspberry Pi Compute Module 4

     

    CM4-ETH-RS485-BASE-B-details-1.jpg
    Specifications
    CM4 SOCKET suitable for all variants of Compute Module 4
    NETWORKING Gigabit Ethernet RJ45 connector, 100M Ethernet RJ45 connector
    CONNECTOR Isolated RS485 × 4, Power screw terminal × 1
    USB USB 2.0 Type A × 2
    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 93.6 × 108.8mm
    Connecting With Compute Module 4

    Standard CM4 Socket And Suitable For All Variants Of Compute Module 4

    CM4-ETH-RS485-BASE-B-details-3.jpg
    More Rich Interfaces

    Various Interfaces Including: Dual ETH / RS485 / CSI / FAN / HDMI / Micro SD / USB

    CM4-ETH-RS485-BASE-B-details-5.jpg
    Application Examples

    Suitable For Raspberry Pi Applications Requiring Multi-Channel RS485 Communication Or Other Industrial Context

    CM4-ETH-RS485-BASE-B-details-7.jpg
    for reference only, CM4, display, and cameras are NOT included.
    What's On Board
    CM4-ETH-RS485-BASE-B-details-intro.jpg
    1. CM4 socket
      suitable for all variants of Compute Module 4
    2. IO-VREF
      Set the CM4 IO logic level as 3.3V (default) or 1.8V
    3. RTC-12C: 12C bus selection for RTC
      Can choose SDA0 & SCLO (default) or GPIO2 & GPIO3
    4. RTC INT: RTC interrupt pin select
      D16: Use GPIO16 to receive interrupt signal when RTC interruption (default)
      GL-EN: CM4 powerdown on RTC interruption
      PI-RUN: CM4 will reboot on RTC interruption
    5. SYSTEM: System function configuration
      WP-DIS: Prevent EEPROM from being overwritten
      BT-DIS: Disable Bluetooth function, for CM4 with antenna variant ONLY
      WIFI-DIS: Disable WiFi function, for CM4 with antenna variant ONLY
    6. Boot
      ON: CM4 will be booted from USB-C interface
      OFF: CM4 will be booted from eMMC or Micro SD card
    7. PWR & USB
      When the BOOT switch is "ON", can be used as the USB programming or DC power supply port
      When the BOOT switch is "OFF", only used as the DC power supply port
    8. HDMI0
      HDMI port, supports 4K 30fps output
    9. USB
      2x USB 2.0, for connecting sorts of USB devices
    10. ETHERNET0
      CM4 original Gigabit RJ45 ETH
    11. ETHERNET1
      USB extended 100M ETH
    12. CAM0 & CAM1
      2x MIPI CSI camera ports
    13. Buzzer
      GPIO22 control
     
    1. FAN
      4-pin FAN header, only supports 5V FAN, allows PWM speed adjustment (GPIO18 control, speed measurement is not supported)
    2. RTC battery socket
      Supports CR1220 button cell
    3. RS485 TX/RX indicator
      TXn: TX indicator for channel n
      RXn: RX indicator for channel n
    4. User LED
      USER0: GPIO20 control
      USER1: GPIO26 control
    5. PWR
      Raspberry Pi power indicator
    6. ACT
      Raspberry Pi working status indicator
    7. DC 7~36V
      DC power supply interface
    8. Power input terminal
      DC power supply terminal, supports 7~36V wide range power input
    9. RS485 terminal
      4 x Isolated RS485 terminal with a spacing of 5.08mm
    10. Jumper
      120R Balance Resistor Selection Jumper
    11. RS485 operating mode selection
      Full-auto: automatic mode, easy for program operation but the load capacity is weak
      Semi-auto: semi-automatic mode, which requires manual TX/RX switching, with high reliability and strong load capacity
    12. Encryption chip
      ATSHA204 encryption chip, providing multiple encryption to ensure data security and reliability
    13. Micro SD card slot
      for connecting a Micro SD card with pre-burnt image (Lite variant ONLY)
    Outline Dimensions
    CM4-ETH-RS485-BASE-B-details-size.jpg
    What's The Differences
    CM4 BASE BOARDINTERFACE COUNT AND SPECIFICATIONS
    POEGIGABIT
    ETH
    40PIN
    GPIO
    PCIEUSB①DSIHDMICSIRTCFAN
    HEADER
    POWER
    INPUT
    FEATURES

    MINI BASE A
      ×1 M.2 M 2.0×4 ×1 ×2 ×2   5V 5V mini size

    MINI BASE B
      ×1 M.2 M 2.0×4 ×1 ×2 ×2 5V 5V mini size

    BINOCULAR CAMERA
      ×1 M.2 M 2.0×4   ×2       5V dual 8MP
    cameras

    DUAL GIGABIT ETH
      ×2   3.0×3 ×1 ×2 ×2 5/12V 7-36V  

    IOT DUAL GIGABIT ETH
      ×2   3.0×2 ×1 ×2 ×2 5/12V 5V 5G/4G support

    IOT BASE
    ×1   Gen2×1 2.0×2 ×2 ×2 ×2 5/12V 7-36V 5G/4G support
    RS232
    RS485
    ADC

    POE BASE (B)
    ×1 Gen2×1 2.0×4 ×2 ×2 ×2 5/12V 5V RS232
    RS485

    POE BASE
    ×1   3.0×4 ×2 ×2 ×2 5/12V 7-36V  

    RASPBERRY PI OFFICIAL
    ×1 Gen2×1 2.0×4 ×2 ×2 ×2 12V 12V  

    WIRELESS BASE
      ×1   M.2 B /
    Mini-PCIe
    2.0×3   ×1 ×1 5/12V 5V or
    7-36V
    5G/4G support
    RS485
    CAN
    rail-mount

    7″ ALL-IN-ONE
      ×1   M.2 M 2.0×4 used ×1 used 5/12V
    used
    7-36V touch screen
    camera
    speaker
    NOTE ① USB 3.0 is equivalent to USB 3.2 Gen1
    ② There's PoE header only on the Raspberry Pi official IO board without PoE circuit, that means additional PoE module is required for the official IO board to enable PoE feature. 
    Unless otherwise specified, the PoE feature here stands for integrating 802.3af-compliant PoE circuit (5V/2.5A).
    Resources & Services
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    Waveshare Electronics
    WS-21666

    Špecifické referencie

    Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4, Gigabit Ethernet, 4CH Isolated RS485 (WS-21666)

    63,48 €

    52.90 € bez DPH