Tait TB9100, Installation And Operation Manual

Page: 14 / 144

14 Description TB9100 Installation and Operation Manual
© Tait Electronics Limited May 2006
1.4 Theory of Operation
Typical Base Station System
A typical TB9100 base station (shown in Figure 1.1 ) has a PMU that
supplies power to the modules in the subrack.
A system control bus interconnects the modules and carries alarm and
control signaling between the reciter and the other modules (shown in
Figure 1.2 ). The reciter receives RF signals from its RF input and sends RF
from its RF output to the PA, along with a PA key signal. The reciter also
receives signals from and sends signals to the analog line, the digital line, and
the control panel.
The control panel speaker and microphone enable the base station
maintainer to communicate with the dispatcher or with subscriber unit
radios. As well as voice over IP, the digital line carries communications
between the CSS and the base station.
Figure 1.1 Base station system communication paths