User's Manual
Table Of Contents
- Installation and Operation Manual
- Tait Contact Information
- Contents
- Preface
- 1 Introduction
- 2 Mechanical Description
- 3 Functional Description
- 4 Installation
- 5 Replacing Modules
- 5.1 Removing the Base Station and Opening the Tray
- 5.2 Replacing the UI Board
- 5.3 Replacing the Receiver Module
- 5.4 Replacing the Transmitter Module
- 5.5 Replacing the SI Board
- 5.6 Replacing the Transmitter and Receiver Fans
- 5.7 Replacing the Fan Power Board
- 5.8 Replacing the Temperature Sensor Board
- 5.9 Replacing the AC Power Supply Unit, Fan and Filter Module
- 5.10 Replacing the Speaker
- 5.11 Final Reassembly
- 6 Connections
- 7 Preparation for Operation
- 7.1 Introduction
- 7.2 Mode of Operation
- 7.3 Line-controlled Base
- 7.4 Talk Through Repeater
- 7.5 RF Modem
- 7.6 Data Repeater
- 7.7 TaitNet Trunking
- 7.8 Programmable Features
- 7.9 Additional Settings
- 7.10 Adding Subaudible Signalling
- 7.11 Soft Off (Tx Tail Time)
- 7.12 Tone On Idle (TOI)
- 7.13 Fan Operation
- 7.14 Channel ID
- 7.15 Relay Polarity
- 7.16 Channel Increment and Decrement by Function Keys
- 7.17 Carrier Wave Identification (CWID)
- 8 Maintenance Guide
- Glossary
- Tait General Software Licence Agreement
- Directive 1999/5/EC Declaration of Conformity
TB7100 Installation and Operation Manual Preparation for Operation 121
© Tait Electronics Limited December 2005
The temperature threshold is set at the factory to 40°C. The potentiometer
and test point to adjust the temperature threshold can be found on the
system interface module. Refer to Figure 7.11 on page 115 for the location.
When adjusting the temperature threshold the fans must be off.
The temperature threshold to voltage relationship is shown in Figure 7.13
on page 121.
Important When using THSD and the user interface PTT, the fan set-
ting should be temperature controlled or always on. This is
because the user interface PTT line does not toggle the
TX-key line on the system interface and the THSD is only
on for short burst of time never allowing the fan time to
spin up.
Designator Function
RV200 temperature threshold adjust
J222 test point for temperature threshold
Figure 7.13 temperature threshold to voltage relationship
0.92 0.98 1.04 1.10 1.16
1.22
1.28
1.34
1.40 1.46 1.52
0
10
20
30
40
50
60
70
80
90
Voltage
Temperature
50
68
86
104
122
140
158
176
194
32
Fahrenheit
Celsius