16 Description TB9100/P25 CG/P25 TAG Installation and Operation Manual© Tait Limited March 2014Front PanelThe front panel is mounted onto the subrack with two quick-releasefasteners. It incorporates the cooling fans for the PAs and the PMU if thesemodules are present.Control PanelThe control panel is mounted ontothe subrack and is accessible throughan opening in the front panel. Thecontrol panel provides some manualcontrol of the channels in the subrack,can display status information for eachchannel and allows the technician tomake and receive calls (refer to“Control Panel” on page 79).It is a technician tool rather than a userfacility.SubrackThe 4U subrack is made of passivated steel and is designed to fit into astandard 19 inch rack or cabinet.It is fitted with a configurable subrack interconnect board that providesswitching and control logic. The position of a module in the rack is definedby the socket in the subrack interconnect board to which the module isconnected by the system control bus.
