Pasqualoni, 61, comes to Connecticut from the Dallas Cowboys, where he began the 2010 season on the staff of Coach Wade Phillips and then became interim defensive coordinator when Phillips was fired.
Connecticut began a coaching search after Randy Edsall left the school to take over the football program at Maryland. Edsall had been at Connecticut for 12 years.
Pasqualoni worked for the Cowboys from 2005-07, and then spent two seasons with the Miami Dolphins as defensive coordinator.
He was coach at Syracuse University from 1991 through 2004, leading the Orange to nine bowl games.