Run jobs different NIC

Hi,

I have a Tape library in our network and I would like to run the backup of our servers on isolated switch in the network. The servers that I want to backup each has a free NIC . The IP of the network is 10.0.10.0/24.

Can I connect the free NIC of my servers and BE 20 server to a sperate switch and use IP 192.168.20.0/24 and use this IP to backup?

Should I first ceate my jobs and after that in the job proberty- network choose the NIC on BE server that has the IP 162.168.20.0/24 

Thanks