User's Manual

Table Of Contents
36 Functional Description TB7100 Installation and Operation Manual
© Tait Electronics Limited December 2005
Figure 3.7 SI board block diagram
13.8V
9V
4.5V
3.3V
13.8V out
Power Supplies
9V 4.5V
RXAUDIO OUT
RX LINE OUT
TX INAUDIO
TX LINE IN
TOITONE
AUD IN
13.8V
13.8V
9V
4.5V
3.3V
Audio
Control
and
Signalling
AUX IO
TX KEY
TX DATA
AUX IO
RX GATE
RSSI
RX DATA
AUD OUT
Transmitter
Module
Receiver
Module
Temperature
Sensor
Fan Power
Board
Fan Control
Serial Data
Connector
RXD
TXD
13.8V out
System
Connector
13.8V
3.3V
RSSI
RX GATE
DIG IO
OPTO
RELAY DRIVER
RX INHIBIT
TX KEY
TX DIG IO
RX DIG IO
DC Power
Connector
Mains fail signal
13.8V
AC Power
Supply Unit
Fuse
13.8V
13.8V
AGND IN
SI Board