ProductsCM4 / CM5 Gateway

CM4 / CM5 Gateway Carrier Board

Ready for prototype manufacturing

A carrier board for the Raspberry Pi Compute Module 4 and Compute Module 5, designed for industrial gateway and edge roles.

CM4 / CM5 Gateway Carrier Board — base configuration render

Shown with Raspberry Pi Compute Module 4 installed. The carrier board supports CM4 and CM5; Compute Module is not included.

Overview

What it is

The CM4 / CM5 Gateway Carrier Board turns a Raspberry Pi Compute Module into a wired-and-cellular industrial gateway. It pairs Gigabit Ethernet and NVMe / microSD storage with an LTE modem (Nano-SIM plus an onboard eSIM IC), two independent RS-485 ports, universal and vibration sensor inputs, and MIPI camera / display plus micro-HDMI, on a board built around a wide industrial DC input. The base configuration shown uses an LTE modem without GNSS; GNSS is available through a compatible LTE / GNSS modem variant. Engineering design is complete — schematic, PCB layout and the manufacturing package (Gerbers, BOM, CPL) — and the board is ready for prototype manufacturing. No prototypes have been built or tested yet.

Options

Configurations

The Gateway Carrier Board is the base product. It has no onboard LoRa. GNSS can be added either through a compatible LTE / GNSS modem or through the separate NWIREDCORE LoRa Hub. Multi-channel LoRa connectivity is provided only by the separate LoRa Hub.

Base Gateway — current configuration

  • CM4 / CM5 Gateway Carrier Board
  • LTE: yes
  • GNSS: no, in the base modification shown
  • LoRa: no (not an onboard feature)

Full LTE / GNSS option

  • CM4 / CM5 Gateway Carrier Board
  • LTE: yes
  • GNSS: yes, through a compatible LTE / GNSS modem variant

Gateway + LoRa Hub — separate companion

  • NWIREDCORE LoRa Hub (separate companion module)
  • Multi-channel LoRa: provided by the LoRa Hub
  • GNSS: provided by the LoRa Hub (always included)
  • Not part of the base Gateway
NWIREDCORE LoRa Hub installed on the CM4 / CM5 Gateway Carrier Board
CM4 / CM5 Gateway Carrier Board shown with the optional NWIREDCORE LoRa Hub installed.

The LoRa Hub is a separate companion module and is not included in the base Gateway configuration.

Hardware

Board views

Top and bottom of the board (KiCad ray-traced renders). The LoRa Hub is a separate companion module.

CM4 / CM5 Gateway Carrier Board — top view, shown with the optional LoRa Hub installed
Top view — shown with the optional LoRa Hub installed
CM4 / CM5 Gateway Carrier Board — bottom view
Bottom view
Capabilities

Main features

Current design intent. Individual items may still change during prototype bring-up and validation.

  • 01Raspberry Pi Compute Module 4 / 5 (CM4 / CM5)
  • 02Gigabit Ethernet
  • 03LTE modem — Nano-SIM + onboard eSIM
  • 04M.2 NVMe SSD, 2280 + microSD
  • 052 × independent RS-485 ports
  • 064 × universal digital sensor inputs
  • 074 × dedicated vibration sensor inputs
  • 08Industrial DC input, approx. 7.5–24 V DC
  • 093 × USB 2.0 — 2 × Type-A + 1 × Type-C
  • 102 × USB 3.0 Type-A with CM5
Design detail

Current design specification

Current design specifications. Some details may change after prototype bring-up and validation.

Compute & storage

  • Raspberry Pi Compute Module 4 / 5 (CM4 / CM5)
  • M.2 NVMe SSD, 2280
  • microSD

Network & connectivity

  • Gigabit Ethernet
  • LTE modem
  • Nano-SIM holder
  • Onboard eSIM IC
  • LTE antenna connector
  • Current Gateway modification: no GNSS
  • Optional GNSS with a compatible LTE / GNSS modem variant
  • 2 × USB 2.0 Type-A
  • 1 × USB 2.0 Type-C
  • 2 × USB 3.0 Type-A when CM5 is installed

Field I/O & sensors

  • 2 × independent RS-485 ports
  • 4 × universal digital sensor inputs
  • 4 × dedicated vibration sensor inputs with programmable trigger threshold

Display / camera

  • Micro-HDMI
  • MIPI camera / display connectors

Power

  • Industrial-oriented DC input
  • Approximately 7.5–24 V DC design range
Use

Intended applications

Target use cases for the design. This is not a claim of commercial deployment.

  • Industrial gateways
  • IoT gateways
  • Remote monitoring
  • Telemetry
  • Edge computing
  • Automation
  • Custom embedded systems
Development status

Roadmap

  1. ArchitectureCompleted

    Block diagram, interface allocation and power tree fixed.

  2. SchematicCompleted

    Full capture complete — compute module, power, Ethernet, LTE, USB, RS-485 and sensor interfaces.

  3. PCB LayoutCompleted

    Board outline, stack-up, placement and routing complete.

  4. Manufacturing packageCompleted

    Gerber files, BOM and CPL / placement files complete — ready for factory quoting.

  5. Prototype manufacturingNext step

    Next milestone: board fabrication and parts procurement.

  6. Assembly and bring-upUpcoming

    Board assembly, then power, boot and interface checks on the first units.

  7. Hardware testing and validationUpcoming

    Ethernet, LTE, USB, RS-485, sensor I/O, power range and thermal checks against the design intent.

  8. Design revision if requiredFuture

    Any fixes found during bring-up and testing folded into a revised board.

  9. Pilot / small production batchFuture

The engineering design package is complete: schematic, PCB layout and manufacturing outputs (Gerber files, BOM and CPL / placement files). The next milestone is prototype fabrication, assembly and bring-up. Specification values above are the current design intent and may still change during bring-up and validation.

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