Univention-rsyslogd for extrenal syslog-clients

What do you have to set up in the UCS server (AD master vers. 5.0-2) in order to use univention-rsyslogd as a SYSLOG server for external syslog clients (in the local LAN).
Until some time ago I was running a UCS server ver. 4.4x. Here I was able to use rsyslogd as a “collector” for debug messages from my sensors with Tasmota.

thank you in advance