TS-7100-Z Ethernet ports
From embeddedTS Manuals
The Ethernet jacks are located on the TS-7100-Z IO board. See elsewhere in this manual for further details on the Ethernet devices and network configuration.
The enclosure's end cap labels ethernet@20b4000
("ETH0" in the diagram above) as "ETH B", and ethernet@2188000
("ETH1") as "ETH A".