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A diagram showing the ROI of a 5G edge router by preventing costly AGV downtime caused by Wi-Fi or 4G LTE latency.

Building the Business Case for a 5G Edge Router (TCO vs. ROI)

Building a business case for 5G? This guide compares the 5g edge router TCO vs. ROI, showing how low latency and high speed justify the...

Robert Liao
A TCO comparison showing how a VPN edge router and RCMS (RobustVPN) replaces a $5,0TCO0 truck roll, helping a machine builder cut service costs.

Case Study: How a VPN Edge Router Slashed Our Machine Service Costs by 80%

A case study on how an industrial edge router with VPN slashed machine service costs by 80%. Learn how this edge router enables secure remote...

Robert Liao
A diagram showing how the IEC 62443 standard creates a chain of trust from the development process to the final secure edge router protecting an OT network.

Why Your Edge Router Must Be IEC 62443 Certified (A Buyer's Guide)

Why is IEC 62443 a must-have for an industrial edge router ? Learn how this standard ensures your edge router is secure by design. ...

Robert Liao
An infographic showing the key features of a secure edge router for a Zero Trust network, including IEC 62443 certification, a hardened OS, and RCMS.

The Edge Router in a Zero Trust Architecture: A Practical OT Guide

How does Zero Trust work in OT security? Learn how a secure edge router acts as the enforcement point for a Zero Trust architecture to...

Robert Liao
An architecture diagram showing how a secure edge router provides ot security by using a firewall and network segmentation to stop ransomware.

How a Secure Edge Router Stops Ransomware from Reaching Your OT Network

How does a secure edge router stop ransomware from reaching your OT network? Learn how this edge router uses segmentation and a firewall to protect...

Robert Liao
Security diagram showing a secure edge router acting as a firewall, protecting a PLC's OPC UA port and creating a secure VPN to the cloud.

The OPC UA Edge Router: How to Bridge Legacy Devices to a Modern Standard

What is an OPC UA edge router ? Learn how a smart edge router bridges legacy devices (Modbus, S7) to the OPC UA standard for...

Robert Liao
A diagram showing the risk of exposing a Siemens PLC vs. the security of using an S7 edge router as a firewall and VPN gateway.

The S7 Edge Router: A Secure Guide to Siemens PLC Data & Remote Access

Need siemens plc remote access? Learn how an s7 edge router provides secure OT/IT connectivity and s7 data collection (S7 to MQTT). ...

Robert Liao
A diagram comparing the complex, high-cost TCO of a PC-based middleware stack to the simple, low-TCO solution of a single industrial edge router for Allen-Bradley connectivity.

The EtherNet/IP Edge Router: Connecting Allen-Bradley PLCs Securely

Need to connect Allen-Bradley PLCs? Learn how an EtherNet/IP edge router securely reads ControlLogix/CompactLogix tags for data collection, ...

Robert Liao
Infographic showing an edge router as a translator, converting confusing Modbus RTU/TCP data from PLCs into clean MQTT/JSON for the cloud.

The Modbus Edge Router: Your Guide to Connecting RTU/TCP to the Cloud

Need Modbus to MQTT? Learn how a modbus edge router handles modbus rtu to tcp and translates PLC data to the cloud. A modern edge...

Robert Liao
A graphic comparing a cheap edge router as a TCO

The Real TCO of an Edge Router: A 5-Year Cost vs. Price Analysis

A low edge router price is not low cost. This 5-year tco analysis edge router guide breaks down the real hidden costs of a cheap...

Robert Liao
Diagram comparing a closed proprietary Moxa edge router to a Robustel edge router with an open Debian OS and Docker support, a key moxa alternative.

Moxa Edge Router Alternative? A Robustel vs Moxa Open-Platform Comparison

Looking for a Moxa edge router alternative? See how Robustel's open (Debian/Docker) industrial edge router compares to Moxa's on TCO & RCMS. ...

Robert Liao
A checklist showing the ideal use cases for the R5020 Lite (connectivity) vs. the EG5120 (compute) edge router.

Choosing Your Robustel Edge Router: R5020 Lite (5G) vs. EG5120 (Compute)

Choosing a Robustel edge router? This R5020 Lite vs EG5120 guide compares the 5g edge router (connectivity) to the edge computing router ...

Robert Liao
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