balanced inputs

I recently got Boss BB-1X digital pedal which has balanced TRS line out. I try to use it with my Behringer umc204hd which has two combo XLR-TRS inputs with gain control and pad and inst/line buttons for each input. When I connect my pedal from pedal's balanced TRS line out to the sound card's...

Ok, I have looked and searched everywhere I could think of and (unless I missed something) I cannot find a definitive answer. Yes I have looked at the manual and No it does not say. (Only mention is the DI) The reason I'm needing to know is because I JUST ordered a Crown XTI 1002 (I plan on...