5G IoT/AIoT industrial gateway ships with Raspberry Pi Compute Module 4

WPC-632-Pi CM4 is an industrial IoT gateway based on Raspberry Pi Compute Module 4 with optional 5G or 4G LTE cellular connectivity, that joins other Raspberry Pi CM4 industrial gateways such as CompuLab IOT-GATE-RPI4, CatsPi Industrial Lite, Modberry M500 CM4, among others.

The Linux gateway features two Ethernet ports, RS232/RS485 and other I/Os via terminal blocks, mPCIe and M.2 sockets for expansion with 5G modem 4G LTE mode, AI accelerator, or an NVMe SSD, as well as support for 9V to 32V wide-range input power.


WPC-632-Pi CM4 industrial gateway specifications:

  • SoM – Raspberry Pi Compute Module 4 with Broadcom BCM2711 quad-core Cortex A72 processor with VideoCore VI GPU, up to 8GB RAM, up to 32GB flash, optional wireless module
  • Storage – Optional PCIe SSD via M.2 key M socket
  • Video and audio output – 1x micro HDMI port up to 4Kp60 with audio
  • Camera – 1x MIPI CSI-2 connector
  • Connectivity
    • 1x Gigabit Ethernet RJ45 port, 1x Fast Ethernet RJ45 port
    • Optional dual-band 802.11b/g/n/ac WiFi 5 and Bluetooth 5.0 BLE module (on RPi CM4 module)
    • Optional 5G via M.2 key B (USB 3.0 / PCIe) socket + Nano SIM slot
    • Optional 4G LTE, NB-IoT or LoRa via mini PCIe (USB 2.0) socket + Nano SIM slot
  • USB – 2x USB 3.0 ports, 2x USB 2.0 ports, 1x internal USB 3.0 header
  • Expansion
    • 1x I2C, 1x SPI, 2x PWM via internal headers
    • Digtial I/O via terminal blocks
      • 1x digital input pin (active low or high as selected)
        • Dry contact: Logic level 0 : close to GND, Logic level 1: open
        • Wet contact: Logic level 0 : 0 ~ 3 V, Logic level 1 : 10 ~ 30 V
      • 1x digital output (active low or high as selected) – 120V AC @ 0.5A, 240V AC @ 0.25A, 30V DC @ 1A
    • Serial – 1x RS-232/422/485 and 1x RS-232/485 via terminal blocks
    • 1x M.2 Key B or Key M
    • 1x mini PCIe with USB 2.0 (on the bottom side of the board)
  • Misc – RTC with battery, buzzer, watchdog timer, reset button, 12V header for fan, various LEDs for power, storage, serial, I/O, networking…
  • Power Supply – 9V-32V DC, 1000mA @ 12V via DC jack or terminal block
  • Dimensions – 170 x 110 x 30 mm (metal housing)
  • Weight – 950 grams
  • Temperature Range – Operating: -20°C to +75°C; storage: -25°C to +80°C
WPC-6323-PI CM4 board fitted with SIM8202G-M2 5G module

Two models are apparently offered with WPC-632-PI CM4-B (for M.2 KEY B) and WPC-632-PI CM4-M (for M.2 KEY M)  depending on whether you need to add 5G or NVMe storage to the gateway. There’s no information about software, but I’d assume the gateway runs Raspberry Pi OS plus possibly some drivers for wireless modules and I/Os.

It took me a while to figure out who the manufacturer was. I first found it on TechDesign saying the manufacturer was “Artisantech Computer Engineering Co. Ltd”, but I also noticed WPC-632 “Industrial IoT gateway” on tcpipweb website for KSH International. Since information online was limited, I ended up asking for additional info from the latter, and they sent a few documents including CE and FCC “verification of compliance” certificates with the name of the company, so I believe KSH International is indeed the manufacturer.

[Update Jan 10,2022: I received more clarifications about the relationship between companies involved in the product. “KSH produces the hardware which Artisantech then adds software onto to create solutions which are ready to use by customers.”]

Applications for the IoT gateway include 5G enterprise networks, IoT data acquisition, environment monitoring, smart office/building, industry 4.0 applications, unmanned base station monitor, and more. WPC-632-Pi CM4 gateway is available now, but as usual for this type of hardware, pricing has not been made public.

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2 Replies to “5G IoT/AIoT industrial gateway ships with Raspberry Pi Compute Module 4”

  1. Some clarifications about who does what:

    KSH produces the hardware which Artisantech then adds software onto to create solutions which are ready to use by customers.

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