Catholic University and D.C. police yesterday announced rewards totalling $11,000 for information leading to the conviction of the person who raped and robbed a coed in a campus classroom on Sept. 18.

The rewards are among the largest offered in recent years here for criminal information and appear to be part of a growing effort to combat serious crime on college campuses throughout the country.

Some schools, such as Yale University in New Haven, Conn., have installed telephone hotlines on the campus for crime victims or witnesses to alert security guards. The University of Virginia in Charlottesville provides an escort service for coeds.

Locally, the University of Maryland recently improved lighting on the campus in College Park as an anticrime measure.

Catholic University offered$10,000 in the Sept. 18 rape case and D.C. police $1,000.

Vincent Lowe, vice-president for administration at the university, said the rape of the 20-year-old student "was such a serious incident and so shocking to the university community" that the board of trustees voted to post the reward.

University officials said the rape is not an isolated incident and pointed to a recent article in the Chronicle on Higher Education that says serious crime is on the rise on college campuses throughout the nation.

The victim at Catholic University was raped by a man armed with a curved hunting knife about 10:30 p.m. in a classroom in Caldwell Hall, police said. After raping the woman, the man stole her watch, jacket and some money before fleeing, police said.

The suspect was described by police as a black male, 23 to 27 years old, 5 foot 10 inches to 5 foot 11 inches tall, with medium complexion and a mustache. He was wearing a purple knit ski cap, sun glasses, sweater and tan trousers, police said.

Anyone with information is asked to call the D.C. Police Department's Crime Solvers number, 393-2222.