Tait TB7100 Installation And Operation Manual

TB7100 Installation and Operation Manual Functional Description 37
© Tait Electronics Limited December 2005
3.4.1 Internal Power Distribution
This section details how the input power feed is distributed throughout the
base station to power its various sub-systems. Refer to Figure 3.8 for more
information.
13.8V DC This is from either the DC input on the rear of the base station, or from an
optional internal AC power supply unit. When AC mains is present, power
will not be drawn from the DC input. The DC power input of the base
station is protected by a rear panel fuse. The 13.8V is distributed directly to
Figure 3.8 Power distribution
Data
Circuitry
Control
Circuitry
Audio
Circuitry
CWID
Power
Supply
Circuitry
Fan Control
Circuitry
AC Power
Supply Unit
Mains fail signal
DC
Power
Source
13.8V
Fuse
DC Power
Connector
SI Board
Fan
Power
Board
Receiver
Module
4.5V 3.3V
9V
13.8V
Power
Supply
Circuitry
13.8V
9V
6V
3.3V
Frequency
Synthesizer
CODEC
andAudio
Receiver
Digital
Board
Interface
3V
2.5V
Transmitter
Module
Power
Supply
Circuitry
13.8V
9V
6V
3.3V
Frequency
Synthesizer
CODEC
andAudio
Transmitter
Digital
Board
Interface
3V
2.5V
Prog/Mic
Connector
UI Board
AC
Power
Source

Tait TB7100 Specifications

General

Brand	Tait
Model	TB7100
Category	Accessories
Language	English