Abstract: An apparatus comprising first plurality of components mounted to a first printed circuit board (PCB), a hybrid connector mounted to the PCB and connected to the first plurality of components, a second plurality of components and a plurality of signal paths through the hybrid connector, the plurality of signal paths connecting each of the first plurality of components to each of the second plurality of components. The signal paths may be load balanced such that, for example, the plurality of signal paths forms an equal number of data lanes between each of the first plurality of components and each of the second plurality of components.

Abstract: A “back-to-back” arrangement of printed circuit boards (PCBs) is provided. Network processors are mounted to the front sides of the PCBs. The network processors are connected to a plurality of nodes by a plurality of signal channels. More particularly, a first subset of the signal channels connects a network processor on a first of the back-to-back PCBs to the plurality of nodes and a second subset of the signal channels connects a network processor on the second of the back-to-back PCBs to the plurality of nodes. Each of the plurality of signals channels is configured to satisfy an insertion loss requirement.

Abstract: A network switch device includes cooling fans to remove heat generated by its electronic circuitry during operation. Multiple cooling zones are provided in a network switch device to enable reduced cooling fan power consumption. The switch device includes a baffle positioned between a first zone and a second zone and across a circuit board. A first cooling fan provides a first airflow through the first zone and across a first portion of the circuit board positioned within the first zone. A second cooling fan provides a second airflow through a second zone of the housing and across a second portion of the circuit board positioned within the second zone. The baffle directs the first airflow away from the second zone and directs the second airflow away from the first zone. Fan speeds of fans in a cooling zone may be adjusted based on temperature sensors positioned in that zone.

Abstract: A network switch device includes cooling fans to remove heat generated by its electronic circuitry during operation. Multiple cooling zones are provided in a network switch device to enable reduced cooling fan power consumption. The switch device includes a baffle positioned between a first zone and a second zone and across a circuit board. A first cooling fan provides a first airflow through the first zone and across a first portion of the circuit board positioned within the first zone. A second cooling fan provides a second airflow through a second zone of the housing and across a second portion of the circuit board positioned within the second zone. The baffle directs the first airflow away from the second zone and directs the second airflow away from the first zone. Fan speeds of fans in a cooling zone may be adjusted based on temperature sensors positioned in that zone.