Trying to connect to a cisco console from vyos

Not sure if this is related at all to vyOS but figured i’d ask here. I’m trying to console into a cisco nexus 5020 via a usb adapter on /dev/ttyUSB0. the manual says I need the usual settings (9600 baud, 8 data bits, 1 stop bit, no parity.) and i use screen to do so, but all i get is gibberish output. Anyone know what settings I should be using? is there anything within vyOS that would possibly affect this sort of connection?