Systems and methods for a tongue and groove arrangement for an electronic module and equipment rack

An equipment rack for holding electronic modules, the equipment rack comprising:

• a plurality of bottom walls;
• a plurality of side walls, where a space between side walls and a bottom wall defines an opening for an electronic module;
• a plurality of first grooves on a first side of the side walls, where the first grooves are displaced by a first amount from a bottom wall of a corresponding opening;
• and
• a plurality of second grooves on a second side of the side walls, where the second grooves are displaced by a second amount from a bottom wall of a corresponding opening, where the second amount is different from the first amount.

A side wall in an equipment rack that is adapted to hold electronic modules, the side wall comprising:

• a first side;
• a second side;
• a first groove defined in the first side;
• and
• a second groove defined in the second side, wherein the second groove is at a different height than the first groove.

A housing for an electronic module that is adapted to slide into an opening in an equipment rack, the housing comprising:

• a rear side adapted to interface with the equipment rack via at least one connector;
• a front side;
• a top;
• a bottom;
• a first side wall with a first tongue, where the first tongue is at a first height with reference to the bottom, where the first tongue is adapted to slidably couple into a first groove of a corresponding wall of an equipment rack;
• and
• a second side wall opposite the first side wall, the second side wall having a second tongue that is adapted to slidably couple into a second groove of a corresponding wall of the equipment rack, where the second tongue is at a second height with reference to the bottom, where the second height is different from the first height.