Introduction Designing a reliable KNX RF system starts with choosing the right device type for the right job. Many RF issues on site are not caused by the protocol, commissioning, or ETS—but by using the wrong RF device in the wrong place. This article breaks down KNX RF device categories—switches, sensors, actuators, and gateways—explaining how…
Introduction One of the most common design questions in KNX projects is deceptively simple: “How many KNX IP routers do we actually need?” The wrong answer leads to overloaded lines, slow communication, and systems that are difficult to expand. The right answer depends on project size, topology, traffic flow, and future growth, not on a…
Introduction KNX IP communication often works silently in the background—until it doesn’t.When KNX telegrams stop reaching devices, ETS downloads fail, or routing behaves unpredictably, the root cause is very often multicast vs unicast handling in the IP network. Many KNX IP problems are wrongly blamed on devices or ETS, while the real issue lies in…
Introduction When a KNX system behaves unpredictably, experienced engineers don’t start by blaming software or devices. They start by checking bus voltage and current. Most KNX communication problems are electrical in nature, even though symptoms look like programming errors. Understanding how to measure, interpret, and troubleshoot KNX bus voltage and current is one of the…
KNX RF thermostats are among the most technically sensitive wireless KNX devices. Unlike switches, which send only occasional telegrams, thermostats measure, calculate, and communicate continuously. This makes their design, configuration, and placement far more critical to system stability, comfort, and battery life. This article is a full technical deep dive intended for consultants, system designers,…
KNX RF repeaters are one of the most misunderstood components in wireless KNX systems. They are often added as a quick fix when RF communication becomes unreliable—but in many projects, they mask the real problem instead of solving it. This article is a full technical yet readable guide for consultants, system designers, and integrators. It…
