Open Linux
Industrial 5G Routers & IoT Gateways, integrated with your systems
Connect PLCs, meters and sensors to your IT on hardware you fully control.
- 4G/LTE on every model, 5G on the owa5x, dual SIM and GNSS options
- Modbus, OPC-UA, MQTT, BACnet and serial integration
- Open Linux edge runtime with customer-owned configuration and IP

Your data and IP
Modbus, OPC-UA, MQTT
Reliable connectivity for machines, meters and sensors

Get an industrial router or IoT gateway that does not lock your data behind a closed vendor cloud. Melqart supplies and programs open Linux gateways that connect real equipment to the IT systems you already run.
Cellular, Ethernet, GNSS and field interfaces for remote industrial sites.
Rugged gateway hardware suited to vehicles, assets, buildings and plants.
Open configuration, documented software and a transferable edge stack.
Choose the role your deployment needs
Use an industrial router when secure network connectivity and failover are the main requirement. Use an IoT edge gateway when the device also needs to translate protocols, buffer data and run local logic. An M2M router or M2M gateway is either role connected over an M2M SIM, so the SIM and data plan are chosen alongside the hardware.
Industrial routers for cellular failover, VPN access and site connectivity.
IoT gateways for Modbus-to-MQTT, OPC-UA, buffering and edge processing.
Edge computers for heavier workloads, analytics and containerized services.
| Capability | Cellular router | IoT gateway | Protocol gateway | Edge computer |
|---|---|---|---|---|
| Network connectivity (cellular, WAN) | ||||
| Routing, VPN, firewall | ||||
| Protocol translation (Modbus, CAN, BACnet) | ||||
| Reads sensors and field I/O | ||||
| Local processing and buffering | ||||
| Runs custom applications |
From Modbus to MQTT without proprietary lock-in

Melqart configures the full data path from fieldbus and machine networks to your cloud, ERP, CMMS, EAM or analytics platform.
Modbus RTU/TCP, OPC-UA, MQTT(S), BACnet and serial RS-485/RS-232.
Data normalization, store-and-forward buffering and managed updates.
Auditable implementation that can be extended or handed over.
- OT01Field devicesModbus RTU/TCP, OPC-UA, BACnet and serial RS-485/RS-232.
- Edge02Open Linux gatewayNormalizes data, buffers it (store-and-forward) and receives managed updates.
- Transport03MQTT(S)Secured transport to the platform of your choice.
- IT04Cloud, ERP, CMMS or EAMThe IT and analytics systems you already run.
Crane connectivity and retrofit projects

For mixed mobile fleets, open gateways can collect load, tilt, runtime and location data without forcing the operator into one closed equipment platform.
Retrofit telemetry on existing machines and vehicles.
Normalize signals across mixed equipment generations.
Send clean data to the systems your teams already use.
Build the rest of the system
Industrial IoT development
The delivery team that writes the gateway code and integrations.
ExploreMaintenance software integration
Feed CMMS, EAM or ERP systems with live machine data.
ExploreCondition & process monitoring
Build monitoring and alarm workflows on the same hardware layer.
ExploreM2M connectivity and SIM advice
How to choose an M2M SIM and data plan for the routers and gateways you deploy.
ExploreFAQ
01What is an IoT gateway?
An IoT gateway connects machines, sensors or controllers to an IT platform. It often translates industrial protocols, buffers data and runs edge logic before data reaches the cloud.
02What is the difference between a router and an IoT gateway?
A router focuses on network connectivity and routing. An IoT gateway usually adds protocol conversion, local processing, application logic and device management.
03Can Melqart program the gateway software?
Yes. Melqart supplies and programs open Linux gateways, including protocol integration, edge services, cloud connectors and managed update workflows.
04What is an M2M router?
An M2M router is an industrial cellular router that connects machines and sensors to a network over an M2M SIM, typically with VPN, failover and remote management. An M2M gateway also translates protocols, buffers data and runs edge logic. Melqart supplies and programs both on open Linux; for SIM and data plan selection, see our M2M connectivity advice.
Proven in the field
Real engagements with fleets and OEMs, each built around a specific operating problem.
Concrete fleetConcrete fleet: drum rotation, slump proxy, work events
GPS, drum rotation and drum pressure on every mixer truck to monitor delivery quality, with data stored on the customer's infrastructure.
Read the case studyScope the right router or gateway architecture
Share your protocols, sites, device count and target platform. We will map the hardware and integration path.

