Abstract: An improved air flow management has an air control device for blocking air from low impedance airflow pathways without high thermal components and directing the air flow initially at specific components with high thermal loading. Other components are cooled by the air as it passes from the high thermal loading component to exit from the unit. The air control device directs the air flow by locating and sizing apertures in the air control device based on the location and thermal load of the components on the printed circuit board. Accordingly, the unit can require less air flow through the unit and smaller or no heat sinks than conventional methods.

Abstract: A frame or similar structure is used for positioning two stacked GBIC connectors within a 1 RU form factor height of a router or similar network device. In one aspect, the frame can be constructed, assembled and/or mounted in the absence of a need for screws or similar connectors and/or tools. Hooks, latches, engaging teeth and the like can engage sections of a chassis base plate, to position the GBIC connectors preferably within a cutout formed in a motherboard. Use of a flex circuit for connecting the GBIC connectors to a motherboard avoids the requirement for high-precision placement for positioning.

Abstract: An adaptor is provided for effectively converting an opening in the chassis or box of a router (or similar device) from an opening which accommodate a power entry component for a first power type to accommodate a power entry component for a second power type. In one aspect, an adaptor fits in a panel opening which is sized and shaped to receive an IEC-compliant AC power entry component. The adaptor has a window or opening which accommodates, e.g. a four-wire DC power entry component. In one aspect, an adaptor couples to screw holes, such as on either side of an RPS coupler and also receives a standard ground wire log, preferably forming a conductive path from the lug to the screw holes.