Abstract: Systems and methods are provided for active network cabinets with configurable dedicated spaces within a cabinet to accommodate none, one, or multiple battery string housing areas within a cabinet. Certain implementations can utilize separators to define such areas, and/or to configure the remaining cabinet area to be, for example, 20RU, 30RU or 36RU in the same housing footprint, as will be discussed below. The disclosed technology can include joining side-by-side active cabinets together to enable expanding and/or reconfiguring the active network cabinet enclosures, for example, to expand the capacity or update components needed to address changing technology, demand, or operational conditions. Certain implementations of the disclosed technology may utilize a modular cabinet plate to join two side-by-side modular reconfigurable network cabinets together.