Tait TB8100 - 1.7 Replacing Components

TB8100 Installation and Operation Manual Circuit Description 25
© Tait Electronics Limited June 2005
Figure 2.5 Control panel high level block diagram
IC
Translation
2
RS-232
Translation
Microphone
Pre-emphasis
& Gain Control
Speaker
Volume &
Gain Control
LEDs &
Switches
Control
Panel Type
Microphone
Connector
Speaker
Fan Inputs
RS-232
Connector
Power
Supply
Microphone Audio
System
Control Bus
Speaker
Enable
Speaker Audio
I C Bus
2
28V, GND
Fan Power & GND
Open Collector RS-232
RS-232 Bus
Channel Select (dual base station only)
IC
Translation
2
RS-232
Translation
LEDs
Control
Panel Type
Fan Inputs
RS-232
Connector
Power
Supply
System
Control Bus
Full Power On
Power Save On
I C Bus
2
28V, GND
Fan Power & GND
Open Collector RS-232
RS-232 Bus
Standard and Dual Base Station Control Panels
Power Save Control Panel