Multi-Port Router Application Scenarios

1. The Challenge: Limited Cabinet Space, Yet More Devices Need Connectivity

After production line digitalization, a single control cabinet often houses more than just one PLC – there are also HMIs, industrial mini PCs, edge acquisition modules… The same situation applies to pump stations and robotic compartments: multiple devices need network access, but cabinet space is limited.

The traditional solution is to add an extra switch, which means:

• An additional procurement item

• Extra cabling work

• One more potential point of failure

When replicating deployments across hundreds or even thousands of sites nationwide, these "small costs" accumulate into a significant operational burden.

Industrial IoT sites that require "multiple devices per location, cellular backhaul, and remote operability and maintenance" need an industrial router with multiple Ethernet ports to handle aggregation and backhaul tasks.

2. Core Capabilities of Multi-Port Industrial Routers

Taking the MovingComm I2200/I2250 series as an example, a multi-port industrial router designed for such scenarios typically offers the following core configurations:

3. Three Typical Application Scenarios

Scenario 1: Smart Factory / PLC Control Cabinets

On-Site Challenges

After production line digitalization, PLCs, HMIs, and acquisition modules within a control cabinet all require network connectivity. If each device is connected via a separate router or switch, cabinet space is quickly consumed, cabling becomes cluttered, and maintenance becomes difficult.

Solution Value

Use a 5-port industrial router for in-cabinet aggregation – connect PLCs, touchscreens, industrial mini PCs, and other devices via multiple LAN ports, and upload data to the MES system or cloud platform through 4G/5G or wired networks.

Case Study Reference: In one automotive parts factory, a control cabinet housing a PLC, touchscreen, VFD, and edge gateway was networked using a single multi-port industrial router for in-cabinet aggregation. This solution saved approximately 30% of cabinet space and 40% of cabling time compared to a "router + switch" approach.

Combined with a cloud management platform, this setup enables remote maintenance and batch upgrades, freeing operations for "multi-device cabinets" from reliance on on-site engineers.

Scenario 2: Inspection Robots / AGVs

On-Site Challenges

Mobile device compartments are compact but must simultaneously connect to the main controller, laser navigation modules, sensor gateways, and other devices, while maintaining stable cellular backhaul. Traditional solutions often require stacking "routers and switches," consuming valuable compartment space.

Solution Value

• Five Ethernet ports connect the main controller and sensor gateways simultaneously

• 5G capabilities support fleet dispatching and data uploads

• Compact design can be integrated into AGV chassis without occupying cargo space

• Supports wide voltage input (9~36V DC) for direct connection to vehicle power systems

Scenario 3: Smart Water / Wastewater Pump Stations

On-Site Challenges

Remote pump stations and water treatment plants are often unattended. PLCs, flow meters, level sensors, and video mini PCs all need network access. Relying on stacked switches increases failure points and operational pressure on these unmanned sites.

Solution Value

• Five Ethernet ports aggregate PLCs, video mini PCs, and other IP devices

• RS485 serial ports connect flow meters, level sensors, and other serial devices

• Dual SIM auto-switching enhances communication resilience for unattended sites

Other applicable industries include: EV charging stations, roadside IoT, self-service terminals, distributed photovoltaic and energy storage grid-connection points, and more.

4. Key Selection Considerations

5. Conclusion

From factory control cabinets to inspection robots, and from pump stations to charging piles, multi-port industrial routers address a common need: stable access for multiple devices per site, reliable backhaul, and remote manageability.

The selection should follow the "scenario-first, specifications-second" principle – first define the number of on-site devices, interface types, and bandwidth requirements, then choose the appropriate port count and cellular technology to find the optimal balance between stability, performance, and cost.

This article is based on general experience in industrial network equipment selection. For specific project recommendations, please refer to the official technical specifications of the relevant manufacturers. For tailored selection advice, feel free to contact MovingComm's technical support team.