Broadband switching including the implementation of and control over a massive sub-microsecond switching fabric. A thumb cover is selectable between a first position extending from the sleeve and a second position either depressed below the sleeve surface or held in place at a position extending along the sleeve. The pawl is provided with a torsion spring member that biases the pawl toward the open or disengaged configuration. The floor attachment member has a floor mounting portion fixedly attached to the structural floor member and a second connecting portion rigidly coupled to the floor mounting portion.