An equipment/distribution cabinet which contains electrical/electronic device modules. The cabinet allows for front, side and rear access for replacement, servicing and maintenance of the modules carried by the cabinet. The cabinet further includes mounting units which creates areas within which the modules are mounted within the cabinet. The mounting units connect to corner supports assisting in the front, side and rear access. The mounting units further include integrated wire and cable passage ways and tie bars allowing for organization of the wiring within the cabinet. The cabinet is produced to allow either top or bottom access and can accept a plurality of input voltage levels. The cabinet is constructed so that modules having a variety of different functional characteristics and sizes may be intermixed.