I believe the length of the suspension depends on how the referee describes the reason for the ejection.
Here is the ejection form to be submitted by the referee and coach/AD for all sports. The reasons for ejection that are available on the form to select are:
FIGHTING With Contact
FIGHTING No Contact
TAUNTING OR BAITING
OBSCENE GESTURES
PROFANITY (Give details in box below; include EXACT words used)
TWO UNSPORTSMANLIKE FOULS
FLAGRANT FOUL
DISRESPECTFULLY ADDRESSING OR CONTACTING AN OFFICIAL (Give details in box below; give EXACT words used)
I believe the length of suspension depends on which reason is used and the corresponding description.