The KNX TP Multi IO 570 is a universal input and output module for building control. It offers 48 digital channels. Each channel can be used as a binary input or as a binary output. The peripherals (e.g. relays) are powered by an external power supply (24 V¿). Input channels can be used to control e.g. lights or blinds via KNX. They can also be configured as pulse counters - for example for energy meters. Output channels can directly control signal LEDs, external coupling relays (e.g. 590) or blind relays (592). The integrated USB interface enables a connection between a PC and the KNX bus. The USB connection is galvanically isolated from the KNX bus. Configuration is carried out using the ETS (version 4.2 or higher); local programming is possible. An easy-to-read OLED display on the front allows manual operation to test the installation.