Today's OCC is a leader in the engineering and manufacturing of a variety of high-performance, top-tier cabling, and connectivity systems for a wide range of industries - from mission-critical federal/government applications to enterprise solutions, including Optical LAN, as well as. Today's OCC is a leader in the engineering and manufacturing of a variety of high-performance, top-tier cabling, and connectivity systems for a wide range of industries - from mission-critical federal/government applications to enterprise solutions, including Optical LAN, as well as. From Fiber Optic to Copper Cables, from the most innovative products to the smartest solutions, from industries such as Broadcast or Enterprise to Industrial or Data Center, OCC has the connections you need. Over 30 years ago, OCC became a pioneer in the design and production of fiber optic cable. 5290 Concourse Drive Roanoke, VA 24019 USA 1700 Capital Avenue, Suite 150 Plano, TX 75074 USA Toll Free: Toll Free: challenge—OCC has what you need. When we first built our reputation as pioneers in fiber optic cable, OCC made a commitment to quality, performance, and service. Our customers are leaders. PED is a TEM-based technique that rotates the electron beam for more precise crystallography at the nanoscale. Images surface topography and composition with electrons.