The KNX PS640 IP power supplies combine the central functions of a KNX bus line: power supply with choke, IP router and IP interface. The IP router in the devices enables telegrams to be forwarded to other lines via the LAN (IP) as a fast backbone (routing). The device therefore also takes on the function of a KNX line coupler. In parallel, the device can be used as an interface for bus access via IP. The KNX system can thus be configured and monitored from any PC in the LAN (tunneling). Access via a smartphone KNX app is also possible. The devices work according to the KNXnet/IP specification using Core Device Management Tunnelling and Routing. The router has a filter table and can temporarily store up to 150 telegrams. The power supply supplies 29 V bus voltage for the KNX system and an additional 24 V DC supply voltage for 24 V devices. Special operating states such as short circuit, overvoltage, overload or overtemperature are logged and can be read on the display. The current power consumption is also displayed. The keypad can be used to reset the connected bus devices.
