Jim McDonald, chairman, president and CEO of Scientific-Atlanta, has had elective surgery to remove his prostrate and will be out of action for 45-60 days, the company announced Wednesday morning.

In the interim, S-A (NYSE: SFA) will be directed by Wally Haislip, senior vice president, finance and operations; Michael Harney, senior vice president, and president of subscriber networks; and Dwight Duke, senior vice president, and president of transmission network systems.

Scientific-Atlanta: www.sci-atl.com