They have ten seconds or it's a ball. Usually the infielders see the pitch call and look at their wrist bands, so there should g be a need for the catcher to go through the signs.
Our TB team using the same sequence to set where the ball will be played with runners on 1st and 3rd. i.e.. throw to 2nd, throw to pitcher then to 2nd, etc.. Depends on which part of her helmet, shoulders, etc she touches last. Hopefully the girls remember which play it is.