The Fiber Lab 800HE, a test box from M2 Optics Inc., is a rugged testing platform for engineers and technicians working with fiber optic products and networks. It holds up to 25 km of optical fiber in a variety of custom lengths. Fiber can be single- or multimode. The test box is housed in a rugged enclosure and is portable. Connector types are SC, FC, LC and ST, with any angle polish. Applications include manufacturing and development laboratories, harsh environment and field testing, optical network simulation, product development, quality assurance and delay line testing. The unit includes a storage area for patch cords and other fiber optic accessories.