https://www.systerra.de/ioMirror_E3210.html
The ioMirror E3210, which is designed as a cable-replacement solution to connect remote digital input signals to output signals over an IP network, provides 8 digital input channels, 8 digital output channels, and a 10/100M Ethernet interface...
ioMirror E3200 Datasheet (PDF)
https://www.systerra.de/downloads.php?dokument=1556