Terayon Communication Systems announced the appointment of Mark A. Richman as CFO. Most recently Richman served as executive vice president and CFO at Covad Communications Group, where he was part of the executive team brought in to lead the development and execution of the company's strategic vision post- restructuring. Richman joined Covad in 2001 from MainStreet Networks, where he was vice president and CFOhttp://www.terayon.com/