DVR Server and live TV

Hello,

Is it possible to use the Kathrein EXIP 414/E SAT>IP Server SAT>IP Server as DVR server in Plex?

smile.amazon.de/Kathrein-Sat-Tuner-Teilnehmer-Netzwerkstreaming-Ethernet/dp/B012XYXBPQ/ref=sr_1_3?s=ce-de&ie=UTF8&qid=1523025358&sr=1-3&keywords=sat+ip+server

If yes:

How will it work with Plex?

Is it possible to Watch live Tv on 4 Plex Devices, because the DVR server has 4 channels?

What about cheaper Devices like that:

smile.amazon.de/Telestar-Satelliten-IP-Netzwerk-Transmitter-Eing%C3%A4nge/dp/B016XL584C/ref=sr_1_1?s=ce-de&ie=UTF8&qid=1523026170&sr=1-1&keywords=sat+ip+server&refinements=p_36%3A389302011

Or is it necessary to connect the DVR Device directly to the Plex server?

greetings

@Pumuckll said:
Hello,

Is it possible to use the Kathrein EXIP 414/E SAT>IP Server SAT>IP Server as DVR server in Plex?

No.
https://support.plex.tv/articles/225877427-supported-dvr-tuners-and-antennas/

Or is it necessary to connect the DVR Device directly to the Plex server?

See supported devices link, some are local LAN based, some are direct connected(usb/internal).