Patent ID: 7006358

Claim:
A subrack for a plurality of plug-in units, each of the plug-in units comprising a printed circuit board and a mounting panel attached to an end of the printed circuit board, the mounting panel comprising an alignment pin and a screw extending therefrom, the subrack comprising: a pair of parallel sidewalls; and a bottom and a top wall fixed between the sidewalls to cooperatively define a receiving space therebetween adapted to accommodate the plug-in units therein; wherein each of the bottom and top walls comprises: a first plate comprising a main portion and a recessed edge portion, the main portion defining a plurality of spaced slide channels for slidably receiving the printed circuit boards therein respectively, and a plurality of alignment grooves adjacent the slide channels respectively for receiving the alignment pins to guide the plug-in units into said receiving space, the recessed edge portion defining a plurality of through apertures therein; and a second plate comprising a vertical portion defining a plurality of screw apertures therein corresponding to the through apertures, the screw apertures engagingly receiving the screws of the plug-in units respectively, at least one horizontal portion extending from a side of the vertical portion, the at least one horizontal portion being attached to the recessed edge portion thereby fixing the first and second plates together.