The group's principal activities are designing, manufacturing and marketing network transmission products and provision of services and support to information service providers. the broadband communications division is into research, development, management, production, support and sales of advanced fiber optic and rf (radio frequency) equipment. a digital video transport product line was added to this division with the acquisition of certain operations from adc telecommunications, inc. (adc), effective august 4, 2001. main customers of the company are cable television operators, telephone companies, major broadcast companies and installers of broadband communication networks. the group has administrative offices in denver, colorado, canada, europe and hong kong. broadband communications products accounted for 85% of fiscal 2002 revenues; Broadband network solutions, 14% & broadband management solutions, 1%.