CAT3 (Category 3 for Voice). CAT5e (Category 5e for Data orVoice) CERTIFIED to TIA 568 Standard/TSB-67 & TSB-95. CAT6 (Category 6 for Data or Voice) CERTIFIED to TIA 568 Standard/Draft 7. Fiber Optics Single and Multimode. Multimode Fiber (for Intrabuilding backbones between floors or areas over 300 feet apart). Singlemode Fiber (for Campus backbones between buildings).