Autor: Jerry Huang

The Robustel EG5120 Edge Computing Gateway is available in cellular variants that let buyers match the gateway to the site. Some workloads justify 5G; many remain well served by a qualified 4G design. Edge computing changes the WAN workload. Raw machine data may be filtered locally, while software updates, exception images or backlog replay can…

The Robustel R1520LG LoRaWAN Gateway supports external UDP, LoRa Basics Station and LORIOT connections, as well as an embedded ChirpStack option. That flexibility is useful only after the project decides where the LoRaWAN network server (LNS) belongs. Many setup problems come from configuring in the wrong order. A gateway is connected to the internet, a…

The Robustel R5020e 5G eSIM Router combines one embedded eSIM/eUICC with one removable 2FF SIM slot. That makes it useful for global fleets, but it also illustrates a point that is often lost in procurement: eSIM and dual-SIM are not opposite categories. eSIM describes how a subscription profile is installed and managed. Dual-SIM describes the…

Edge describes processing close to assets; fog commonly describes a distributed intermediate layer coordinating multiple edge nodes.

LNS placement decides who operates the LoRaWAN control layer and what remains available when site backhaul fails.

WiFi 6 and 5G are separate shared radio systems; business capacity depends on how both are designed and operated together.

Edge and cloud are complementary operating locations; each workload should sit where its failure and ownership requirements can be met.

Gateway count is the greater of coverage, capacity, resilience and operational-placement requirements—not a floor-area formula.

An external antenna helps only when the complete RF path and installation move the signal budget in the right direction.

Choosing Linux is the beginning of an application lifecycle decision, not proof that every package or container will run unchanged.