The N2280A (Quad 1 x 2), N2281A (Dual 1 x 4) and N2282A (1 x 8) optical modules bring the flexibility of modular optical switching based on the Agilent 3499 switching family. The optical switching modules, combined with other 3499 family electronic modules, provide a total switching solution in hybrid test systems. With this modular optical switching, test engineers can set up an ATE system with just enough optical switching channels to fit the current application, and add more channels later as the application grows.