FAQ - KNX System Device

What is line coupler and where is it used?

The Ekinex KNX line/area coupler connects two KNX data transmission lines and guarantees the galvanic isolation between them. This way, every bus line can work independently from the other lines, electrically speaking. Each line (sector line, main line, line) or line segment needs a dedicated power supply voltage.

The Ekinex KNX IP router connects different KNX bus lines through LAN networks with a bidirectional communication. This way, it is possible to realize communications concerning an entire building or even a compound of buildings. The IP interface supports the tunnelling protocol and allows addressing, parameter settings, display, protocol and diagnosis of KNX bus devices through ETS. The connection to the data networks is carried out through RJ45 sockets.

The Ekinex KNX USB data interface with integrated bus coupler allows the connection of a PC to the KNX system for the addressing, programming and diagnosing of KNX devices. Communication between the USB/KNX interface and connected devices is handled through common EMI protocol; this protocol is designed for current and future applications.

The Ekinex KNX IP interface allows the coupling of a PC with KNX components for addressing and system internal diagnosis. The connection to the data networks is carried out through RJ45 sockets. The device is equipped with an integrated KNX bus communication module and is realized for 35mm DIN rail mounting.

Other FAQs

KNX Actuators and Outputs

Actuators are devices that produce a physical action on the controlled system by executing a command received from a control device.


The CODESYS PLC executes a program and elaborates the digital and analog signals coming from sensors and meant for the actuators installed in a KNX plant.

KNX Power Supply

Ekinex AB1 and AG1 KNX power supplies provide the network voltage (SELV) to all KNX components.

KNX Dimmer

The Ekinex® actuator / dimmer is an S-mode modular KNX device for panel mounting, able to command and regulate the brightness of lighting devices.

KNX Gateway

The ekinex® gateways are modular devices for mounting a framework. It used to exchange information with one or more slave devices, or with a master device communicate over a RS485 differential serial or Ethernet network.

KNX Input

In a home automation plant, commands are often realized with pushbutton interfaces, commonly referred to as “spiders”, which are connected to traditionals rockers.

KNX Metering

The Ekinex® metering products are divided into energy meters, communication modules and network analyzers.

KNX Thermal Regulation

The Ekinex® products for temperature control are grouped in fancoil, electrothermal actuator and mixing group controllers.

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