Abstract: A housing for electrical assemblies is composed of at least one chassis, whereby u-shaped connecting clips open toward the back are arranged between the individual chassis, the u-shaped clips being composed of vertically proceeding, perforated plates that terminate flush with the chassis. A floor part composed of a fire protection floor and a floor clip that is fashioned similar to the connecting clip and a cover part composed of an upper covering and a cover clip that is fashioned similar to the connecting clip are also provided.

Abstract: A configurable I/O panel assembly includes an upper and a lower I/O panel (connector plate), and a cover plate. A plurality of upper I/O panels is provided, from which the upper I/O panel is selected. Similarly, a plurality of lower I/O panels is provided, from which the lower I/O panel is selected. The cover plate is selected from a plurality of cover plates. Openings are formed in the upper and lower I/O panels for receiving cable connectors. Typical connectors include, but are not limited to, 50-pin connectors, RS-232 connectors, 9-pin D-sub connectors, RJ-45 jacks and BNC connectors. Grounding and other signal conditioning circuitry for the connectors are provided to protect against EMI radiation.

Abstract: A power management system for providing power to a main system, such as a telecommunications device, includes a number of modules that are joined by module-to-module interfaces that achieve a common EMC containment barrier. In one embodiment, a battery module defines a first EMC compartment that houses one or more backup batteries, a battery management module defines a second EMC compartment that includes circuitry such as recharging circuitry, and a power entry module includes a third EMC compartment. The power entry module has an input/output connection to the battery management module and has an AC input. An output cable extends from the power entry module to the main system. Compliant metallic module-to-module gaskets preserve EMC integrity at cable pass-throughs from the battery management module to the battery and power entry modules. The modules are mounted to a system housing in a manner that secures the modules in a desired relationship.