Author: Jerry Huang

The Robustel EG5120 edge computing gateway can reduce application latency when a decision that would otherwise travel across a WAN and remote compute platform can be processed locally. It cannot remove sensor acquisition time, fieldbus delays, local processing time or actuator response, so the useful question is not “How low is edge latency?” but “Which…

The Robustel R1520LG LoRaWAN Gateway can fit both private LoRaWAN deployments and architectures using an external Network Server, but the better network model depends less on gateway hardware than on how much coverage, infrastructure and operational responsibility the business wants to own. Consider a logistics company with two very different requirements. Inside a large distribution…

The Robustel R5020 Industrial 5G Router fits remote video sites that need high-bandwidth cellular backhaul from Ethernet-connected cameras, NVRs or other video equipment. But CCTV router sizing should begin with actual uplink traffic and recording architecture—not a fixed camera-count rule—because eight cameras can produce radically different WAN and data-plan requirements. Consider two remote sites. Both…

The Robustel EG5100 edge computing gateway fits phased SCADA modernization projects where existing controllers and operator systems must remain operational while a new data, protocol or remote-management layer is introduced. The gateway should support migration in controlled stages rather than forcing the plant into a one-day replacement of proven SCADA infrastructure. A mature water, energy…

The Robustel R1520LG LoRaWAN Gateway can be used as a building block in resilient LoRaWAN site architectures because it provides documented Ethernet, Wi-Fi and cellular connectivity together with RCMS-based device management. Overlapping radio coverage, independent power and independent backhaul are deployment properties rather than built-in guarantees of the gateway. Redundancy only improves availability when radio,…

The Robustel R5020 Industrial 5G Router fits connected-vehicle deployments that need 5G/LTE backhaul, onboard Ethernet and Wi-Fi, optional GNSS and vehicle-oriented installation options. But selecting a vehicle router requires more than checking cellular speed: power behaviour, antenna placement, route coverage, traffic separation and remote fleet operations must all work through the vehicle’s complete duty cycle….

The Robustel EG5200 edge computing gateway can support edge-HMI architectures where a validated visualization application runs close to industrial equipment and can serve local or networked users. A traditional HMI and an edge HMI solve different operating problems, however, and the best fit depends on which operator must retain visibility when the WAN, local network…

A LoRaWAN coverage gap does not automatically mean that a repeater—or another gateway—is required. The first task is to identify why the endpoint is difficult to reach. For projects using the Robustel R1520LG LoRaWAN Gateway, an additional gateway creates another independent LoRaWAN receiving point with its own IP backhaul. A standards-based LoRaWAN Relay addresses a…

The Robustel R5020-Lite Industrial 5G Router supports IPsec, OpenVPN and WireGuard, making it suitable for several industrial VPN architectures. The best protocol is not universal: site-to-site networking, remote engineering access and large cellular fleets place different demands on interoperability, NAT traversal, performance and credential management. A factory and a remote engineer can both say: We…