Penalty allows for
a) Restriction to bench, then ejection or;
b) Ejection

From FED cut and paste

j . be outside the designated dugout (bench) or bullpen area if not a batter, runner, on-deck batter, in the coach's box or one of the nine players on defense;

For coaches who violate g, h, i, j, k, or l, the umpire may (1) restrict the offender to bench/dugout for the remainder of the game or (2) eject the offender. Any coach restricted to the bench shall be ejected for further misconduct. A coach may leave the bench/dugout to attend to a player who becomes ill or injured.