PA-5400 Series Firewall Base Card (BC)
Learn about the PA-5400 Series Base Card, the central
modular unit of the appliance.
The PA-5400 Series Base Card (BC) serves as the link
between all static and modular components of the PA-5450 firewall.
It functions as a control plane ethernet switch, a data plane traffic
manager, and first packet processor subsystem. The BC interfaces
with the seven front slots and the rear fan slots via signal connectors.
It also uses three power bus bars to conduct currents from the power
distribution board.
The BC can only be removed from the system after removing
the fan assemblies first.
The following BC comes installed by default in a PA-5450 firewall:
