TM8100/TM8200 Installation Guide TM8000/TM8100 TM8200 MMA 00028 01/TM8100 01 TM8100

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TM8100 mobiles
TM8200 mobiles

Installation Guide

MMA-00028-01
Issue 01
July 2005

Contact information
Tait Radio Communications
Corporate Head Office
Tait Electronics Ltd
P.O. Box 1645
Christchurch
New Zealand

Technical Support
For assistance with specific technical issues,
contact Technical Support:
E-mail: support@taitworld.com
Website: http://support.taitworld.com

For the address and telephone number of
regional offices, refer to the TaitWorld
website:
Website: http://www.taitworld.com

To our European customers:
Tait Electronics Limited is an environmentally responsible company which
supports waste minimization and material recovery. The European Union’s
Waste Electrical and Electronic Equipment Directive requires that this
product be disposed of separately from the general waste stream when its
service life is over. Please be environmentally responsible and dispose
through the original supplier, your local municipal waste “separate
collection” service, or contact Tait Electronics Limited.

Contact information

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Scope of Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Enquiries and Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Updates of Manual and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Copyright. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Associated Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RF Exposure Hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safe Radio Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Interference with Vehicular Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Preparation when Drilling Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Vehicles Powered by Liquefied Petroleum Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Radio Installation in Gas or Fuel tankers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Non-standard Radio Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Negative Earth Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1

Preparing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Installation Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3 Checking the Equipment for Completeness . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 Choosing an Installation Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installing the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Mounting and Removing the Control Head. . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Selecting the Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Mounting the U-Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.4 Installing the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.5 Connecting the Power Cable to the Power Source . . . . . . . . . . . . . . . . . . 17
2.6 Connecting a Remote Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.7 Connecting to the Auxiliary Connector (Ignition Signal, Emergency Switch,
External Alert Devices) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8 Installing the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9 Installing the Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.10 Checking the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.11 Blank Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.12 RJ45 Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Tait General Software Licence Agreement . . . . . . . . . . . . . . . . . . . . . . . . 28

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Contents

Preface
Scope of Manual
This manual describes the installation of the TM8100/TM8200 mobile
radio using the U-bracket, and how to install and connect the microphone,
antenna, emergency switch, and external alert device.
Other cradle mounting arrangements are available for the TM8100/
TM8200 radio, but are not described in this manual.
The installation of accessories and mounting options is described in the
installation instructions provided with the equipment, and the relevant
section in the service manual.

Enquiries and Comments
If you have any enquiries regarding this manual, or any comments,
suggestions or notifications of errors, please contact Technical Support, Tait
Electronics Ltd, Christchurch, New Zealand (refer to “Contact
information” on page 2).

Updates of Manual and Equipment
In the interests of improving the performance, reliability, or servicing of the
equipment, Tait Electronics Ltd reserves the right to update the equipment
or this manual or both without prior notice.

Copyright
All information contained in this manual is the property of Tait Electronics
Ltd. All rights are reserved. This manual may not, in whole or in part, be
copied, photocopied, reproduced, translated, stored, or reduced to any
electronic medium or machine-readable form, without prior written
permission from Tait Electronics Limited. All trade names referenced are the
service mark, trademark or registered trademark of the
respective manufacturers.

Disclaimer
There are no warranties extended or granted by this manual. Tait Electronics
Ltd accepts no responsibility for damage arising from use of the information
contained in the manual or of the equipment and software it describes.
It is the responsibility of the user to ensure that use of such information,
equipment and software complies with the laws, rules and regulations of the
applicable jurisdictions.

Preface

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Associated Documentation
TM8100 and TM8200 User’s Guide.
TM8100/TM8200 Operator’s Manual.
TM8100/TM8200 Service Manual.
Technical notes are published from time to time to describe applications for
Tait products, to provide technical details not included in manuals, and to
offer solutions for any problems that arise.
All available TM8100/TM8200 product documentation is provided on the
CD supplied with the service kit1. Updates may also be published on the
Tait support website.

Document Conventions
Within this manual, four types of alerts are given to the reader: Warning,
Caution, Important and Note. The following paragraphs illustrate each type
of alert and its associated symbol.
Warning!! This alert is used when there is a potential risk of death
or serious injury.
Caution

This alert is used when there is the risk of minor or moderate
injury to people.

Important

Note

This alert is used to warn about the risk of equipment
damage or malfunction.

This alert is used to highlight information that is required to ensure
procedures are performed correctly.

Within this manual, the following symbols are used to highlight differences
between the 40W/50W and the 25W radios:
This symbol highlights information that is relevant to 40W/50W radios.
This symbol highlights information that is relevant to 25W radios.

1. Technical notes are only available in PDF format from the Tait
support website. Consult your nearest Tait Dealer or Customer
Service Organization for more information.

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Preface

Safety Warnings
This section contains important information on the safe installation of the
radio. You must read this information before starting the installation.
You must also read and observe the safety information on radio operation
provided in the user’s guide.

RF Exposure Hazard
To comply with FCC RF exposure limits:
For 40W/50W radios:
■

VHF radios must be installed using an antenna mounted centrally on the
vehicle roof, with a gain of 2.15dBi or 5.15dBi.

■

UHF radios must be installed using an antenna mounted either centrally
on the roof with a gain of 2.15dBi or 5.65dBi, or centrally mounted on
the trunk with a gain of 5.65dBi.

For 25W radios:
■

The radio must be installed using an externally mounted antenna with a
gain of either 2.15dBi or 5.15dBi.

In all cases, the antenna must not be mounted at a location such that any
person or persons can come closer than 35 inches (0.9m) to the antenna.

Safe Radio Mounting
Warning!! Mount the radio securely so that it will not break loose
in the event of a collision. An unsecured radio is
dangerous to the vehicle occupants.

Safety Warnings

■

Mount the radio and the microphone where they will not interfere with:
■ the deployment of passenger airbags
■ the vehicle operator controls
■ the vehicle operator’s view.

■

Do not mount the radio vertically, with the control head facing down.
This will violate compliance with the standards UL/CSA/EN 60950,
Safety of Information Technology Equipment.

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Interference with Vehicular Electronics
Warning!! Some vehicular electronic devices may be prone to
malfunction due to the lack of protection from RF
energy when your radio is transmitting.
Examples of vehicular electronic devices that may be affected by RF
energy are:
■

electronic fuel injection systems

■

electronic anti-skid braking systems

■

electronic cruise control systems

■

indicators.

If the vehicle contains such equipment, consult the vehicle manufacturer or
dealer to determine whether these electronic circuits will perform normally
when the radio is transmitting.

Preparation when Drilling Holes
Warning!! When drilling holes in the vehicle, check that drilling
at the selected points will not damage existing wiring,
petrol tanks, fuel lines, brake pipes, or battery cables.

Vehicles Powered by Liquefied Petroleum Gas
Warning!! Radio installation in vehicles powered by LPG
(liquefied petroleum gas) with the LPG container in a
sealed-off space within the interior of the vehicle must
conform to the National Fire Protection Association
Standard NFPA 58. This standard states that the radio
equipment installation must meet the following
requirements:
■

■

The space containing the radio equipment shall be isolated by a
seal from the space containing the LPG container and its fitting.
Outside filling connections shall be used for the LPG container
and its fittings.
The LPG container space shall be vented to the outside of
the vehicle.

Radio Installation in Gas or Fuel tankers
Special conditions must be observed when installing a radio on gas and fuel
tankers. Consult your radio provider or Tait-accredited service center for
more details.

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Safety Warnings

Non-standard Radio Installations
The installation U-bracket described in this guide has been designed so that
there is enough airflow around the radio to provide cooling.
If a non-standard installation method is used, care must be taken that
sufficient heat can be dissipated from the heatsink fins and the ridged bottom
surface of the radio.
For this to be achieved, there must be a gap of more than 3/8 inch (10 mm)
between the bottom surface of the radio chassis and the mounting surface.
This is illustrated in the following diagram (TM8200 radio shown):

3/8 inch (10 mm)
mounting surface

Negative Earth Supply
The radios are designed to operate only in a negative earth system.

Safety Warnings

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Preparing the Installation
This section contains the following information:

1.1

■

regulations

■

installation tools

■

checking the equipment for completeness

■

choosing an installation configuration.

Regulations

MPT 1362 Code of
Practice

TM8100/TM8200 mobile radios should be installed in accordance with the
MPT 1362 Code of Practice. This code of practice covers the installation of
mobile radio equipment in land based vehicles and has been developed by
the United Kingdom Office of Communication (Ofcom). For the full text
of the MPT 1362 Code of Practice, go to the Ofcom website:
http://www.ofcom.org.uk/codes_guidelines/radio_comms/
radio_equip_stnds/.

Vehicle
Manufacturer’s
Installation
Instructions

Follow your vehicle manufacturer’s instructions for installing mobile radios.
For more information, refer to the vehicle manufacturer’s website or contact
the vehicle manufacturer’s dealer.

1.2

Installation Tools
The following tools are required to install of the radio:

1.3

■

drill and drill bits

■

Pozidriv screwdriver

■

5/16 inch (8 mm) socket

■

RF connector crimp tool

■

fuse crimp tool

■

in-line RF power meter capable of measuring forward and reflected
power at the operating frequency of the radio.

Checking the Equipment for Completeness
Unpack the radio and check that you have the following:
1.

A radio body with one of the following product codes:

TM8100:
■ TMAB14 radio body (40W/50W radio), or
TMAB12 radio body (25W radio)
TM8200:
■ TMAB24 radio body (40W/50W radio), or
TMAB22 radio body (25W radio).

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Preparing the Installation

A control head, including control-head loom, with one of the
following product codes:
TM8100:
■ TMAC10 control head (TM8105 radio),
TMAC20 control head (TM8115 radio), or
TMAC50 control head (TM8110 radio).
TM8200:
TMAC30 control head (TM8252 radio), or
TMAC40 control head (TM8250 or TM8255 radio).

■

TMAA02-01 microphone or TMAA02-08 keypad microphone,
including microphone clip and screws (not required for the TM8105
or TM8252 radio)

A TMAA03-17 installation kit (40W/50W radio), or
TMAA03-01 installation kit (25W radio), consisting of the
following items:
■ U-bracket
■ thumbscrews
■ self-drilling screws and washers
■ power cable with DC connector
■ fuses
■ in-line fuse holders
■ receptacles for a remote speaker (remote speaker not included)
■ antenna connector.
Refer to the following section, “Installation Kit Options”.

Warning!! Danger of fire. The radio’s protection mechanisms rely
on the correct fuses on both the negative and positive
power supply leads being present. Failure to fit the
correct fuses may result in fire or damage to the radio.
The correct fuse types are:

Installation Kit
Options

■

40W/50W radios: 20A fuses (Tait IPN 365-00010-81)

■

25W radios: 10A fuses (Tait IPN 365-00010-80).

Installation kits are also available without the U-bracket included and with
other antenna connector options. Other cradle mounting arrangements are
also available. Consult your nearest Tait Dealer or Customer Service
Organization for more information.

Preparing the Installation

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

1.4

Choosing an Installation Configuration
The radio allows for different installation configurations for vehicles with
respect to ignition signal and standby current. For special configurations for
desktop and remote site installations, refer to the service manual.
The installation configurations described below are based on the following
hardware link configuration:
■

hardware link 1 (+13.8V battery power sense): fitted

■

hardware link 2 (ignition sense): fitted

For more information on the hardware links, refer to the service manual.
Direct Connection to
the Power Source

The radio’s power cable must always be connected directly to the power
source (battery).
Important

Although it is possible to connect the radio in line with the
vehicle ignition, this is not recommended, as it may draw
too much current and damage the vehicle wiring and
steering column or ignition switch. This may also cause the
supply voltage of the radio to drop below the specified level.

The radio can always be turned on and off using the on/off button,
independent of the ignition signal.
Installation without
Ignition Signal

Connect the power cable directly to the power source as described in
“Connecting the Power Cable to the Power Source” on page 17.
Note

■
■

Note

Installation with
Ignition Signal

If hardware link 1 is fitted (factory default) and the ignition signal
is not used, the standby current is approximately 50mA. To reduce
the standby current to <3mA either:
remove hardware link 1, or
connect pin 4 (AUX GPI3) to pin 15 (AGND) of the
auxiliary con0nector.
With the above two options, the radio always stays off when power is
first applied. The radio can only be turned on with the on/off button.

Connect the power cable directly to the power source as described in
“Connecting the Power Cable to the Power Source” on page 17.
Connect pin 4 (AUX GPI3) of the auxiliary connector to the ignition signal
as described in “Connecting to the Auxiliary Connector (Ignition Signal,
Emergency Switch, External Alert Devices)” on page 19.
The AUX GPI3 line must be programmed to ‘Power Sense (Ignition)’ and
active to ‘High’. For more information, refer to the online help of the
programming application.
Note

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

The TMAA04-05 ignition sense kit provides a suitable mating plug
for the radio’s auxiliary connector. The plug includes wiring for the
the ignition signal and analog ground.

Preparing the Installation

Installing the Radio
This section contains the following information:

2.1

■

mounting and removing the control head

■

selecting the mounting position

■

mounting the U-bracket

■

installing the antenna

■

connecting the power cable to the power source

■

connecting a remote speaker

■

connecting to the auxiliary connector (ignition signal,
emergency switch, external alert devices)

■

installing the radio

■

installing the microphone

■

checking the installation

■

blank control head

■

RJ45 control head.

Mounting and Removing the Control Head
Important

Mounting the
Control Head

The control head contains devices which can be damaged
by static discharges. Always install or remove the control
head in a static-safe environment. For information on
antistatic precautions, go to the Electrostatic Discharge
Association (ESD) website, http://www.esda.org.

The control head and its connection loom are delivered separately from the
radio body. Before installing the radio, the control head should be mounted
on the radio body.
The orientation of the radio body determines which way up the control
head is mounted on the radio body.
Note

Installing the Radio

It may be required to mount the radio upside down to maintain a
gap of more than 3/8 inch (10 mm) for air circulation between the
underside of the radio body and the mounting surface.

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Figure 2.1

Removing the
Control Head

Mounting the control head

Plug the control-head loom onto the control-head connector.

Insert the bottom edge of the control head onto the two clips in the
front of the radio body, then snap into place.

Important

Figure 2.2

During this procedure, take care that the control-head seal
is not damaged. Damage to this seal reduces
environmental protection.

Removing the control head
control head
lever point

control-head
seal
indication of
lever point

On the underside of the radio, two lever points are indicated on the radio
body by a dot-dash-dot pattern (
). The lever point is between the
control-head seal and the control head.
1.

At either of the lever points, insert a 3/16 inch (5 mm) flat-bladed
screwdriver between the control head and the control-head seal.

Use the screwdriver to lift the control head off the chassis clip, then
repeat in the other position. The control head can now be removed
from the radio body.

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Installing the Radio

2.2

Selecting the Mounting Position

Requirements for
Safe and Convenient
Installation

Gap Between
Radio Body
and Mounting
Surface

Ensure the mounting position complies with the following safety warnings:
Warning!! Safe radio mounting
■

Mount the radio securely so that it will not break loose in the event of a
collision. An unsecured radio is dangerous to the vehicle occupants.

■

Mount the radio and the microphone where they will not interfere with:
■ the deployment of passenger airbags
■ the vehicle operator controls
■ the vehicle operator’s view.

Note

It may be necessary to mount the radio upside down to maintain a
gap of more than 3/8 inch (10 mm) between the bottom surface of
the radio body and the mounting surface.

Inspect the vehicle and determine the safest and most convenient position
for mounting the radio. Make sure that there is sufficient clearance behind
the radio for the heatsink and cables.
IP54 Protection
Class Considerations

The radio fulfils the requirements of the IP54 protection class.
Important

However, do not mount the radio in areas where it can be
temporarily submerged from an accumulation of water or
other liquids (e.g. when using a high-pressure
cleaning device).

The IP54 protection class does not apply when:

■

the control head is removed from the radio body

■

the bungs are removed from the auxiliary connector or the cavity for the
external options connector (fitting an auxiliary connector or external
options connector will not restore the IP54 protection class)

■

the programming connector cover seal is not installed (blank
control head)

■

the RJ45 connector bungs are not installed (RJ45 control head)

■

the microphone grommet is not installed.

Installing the Radio

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

2.3

Mounting the U-Bracket
The U-bracket can be used to install the radio on the dashboard or on any
sufficiently flat surface (e.g. cabin floor or trunk). The U-bracket can be
mounted using the self-drilling screws and washers provided in the
installation kit, or nuts and bolts (not included).
Caution

Although an industrial-strength recloseable fastening system
can be used to support the installation, for safety reasons Tait
does not recommend this as a mounting option.

Important

When mounting the radio on a surface, check whether the
mounting screws will screw into material providing
sufficient strength. Reinforce the mounting surface,
if required.

If the U-bracket is being mounted over a curved surface, bend the
tabs at the bottom of the U-bracket slightly to match the
surface shape.

Hold the U-bracket in the position chosen for the radio and use the
mounting holes as a template to mark the mounting locations.
Use at least four screws to install the U-bracket.

Tip

The screws provided are self-drilling. For more precise positioning,
predrill ∅1/8 inch (3 mm) pilot holes for self-drilling screws.
Reduce the hole size in metal that is less than 1/32 inch
(1 mm) thick.

Important

Ensure that drilling at the selected points will not damage
existing wiring.

Drill any holes required for cables and install suitable grommets or
bushings in the holes.

Screw the U-bracket in the chosen mounting position using the selfdrilling screws and washers provided. When tightening the screws,
ensure that this does not distort the U-bracket.

Figure 2.3

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Mounting the U-bracket

Installing the Radio

2.4

Installing the Antenna
This section provides information on installing an external antenna within
the RF exposure limits.
Install the external antenna according to the antenna manufacturer’s
instructions. Good quality 50 Ω coaxial cable must be used, such as RG58
or UR76.
Important

Route the cable in a manner that minimizes:
■

coupling into the electronic control systems of
the vehicle

■

coupling of electric vehicle systems, such as alternators,
into the radio.

Avoid sharp bends in the cable. These distort the cable and
alter its electrical characteristics.
Warning!! RF exposure hazard
To comply with FCC RF exposure limits:

Terminating the
Antenna Cable

Mount the antenna at a location such that no person or persons can
come closer than 35 inches (0.9m) to the antenna.

For 40W/50W radios:
■ VHF radios must be installed using an antenna mounted centrally
on the vehicle roof, with a gain of 2.15dBi or 5.15dBi.
■ UHF radios must be installed using an antenna mounted either
centrally on the roof with a gain of 2.15dBi or 5.65dBi, or
centrally mounted on the trunk with a gain of 5.65dBi.

For 25W radios, the radio must be installed using an externally
mounted antenna with a gain of either 2.15dBi or 5.15dBi.

Run the free end of the coaxial cable to the radio’s mounting position
and cut it to length, allowing approximately 8 inches (20 cm) excess
at the radio end.

Terminate the free end of the antenna cable with the mini-UHF plug
or BNC plug (supplied) as shown in Figure 2.4.

Figure 2.4

Terminating the antenna cable

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aaaaaaaaaaaa
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bbbbbbbbbbbb
aaaaaaaaaaaa
bbbbbbbbbbbb
aaaaaaaaaaaa
bbbbbbbbbbbb
5/16"
(8 mm)

5/32"
(4 mm)

9/16"
(14 mm)

Installing the Radio

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

2.5

Connecting the Power Cable to the Power Source
This section provides information on connecting the power cable to the
power source.
The power connector is the interface to the vehicle battery and an optional
external remote speaker. Connecting a remote speaker is described in
“Connecting a Remote Speaker” on page 19.

Power Connector

Table 2.1

Power connector (radio)— pins and signals

Pinout

40W/50W radio

rear view

Signal name

Signal type

AGND

Earth return for radio body power source Ground

SPK–

External speaker output. Balanced load
configuration

Analog

SPK+

External speaker output. Balanced load
configuration

Analog

13V8 BATT

DC power input for radio body and
control head

Power

25W radio
1

Description

rear view

Important

Selecting the Power
Source

This radio is designed to operate from a nominal 12V
negative ground supply and may draw up to 15A of current.
The radio will tolerate a supply voltage range of 10.8V to
16.0V at the radio.

In passenger vehicles, the radio is always connected directly to the battery
using the power cable provided.
In trucks, where direct connection to the battery is often not possible, the
radio can be connected to a suitable terminal inside the fuse box that is
connected directly to the battery.

24V-to-12V
Converter

In vehicles with a supply voltage larger than 16.0V, such as many trucks, it
is essential to provide a suitably rated 24V-to-12V converter. This will
isolate the radio from excessive battery voltage and provide the correct DC
operating conditions. Note that most 24V-to-12V converters already fitted
are not rated sufficiently.

Standby Current

When connecting the radio to the battery without using the ignition signal
as described on page 21, the standby current is approximately 50mA.
When using the ignition signal to turn off the radio, the standby current is
reduced to <3mA.
Tip

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

To reduce the standby current from 50mA to <3 mA without using
the ignition signal, connect pin 4 (AUX GPI3) and pin 15 (GND)
of the auxiliary connector.

Installing the Radio

Connecting the
Power Cable

Important

Disconnecting the vehicle’s battery may cause problems
with some electronic equipment, such as vehicle alarms,
engine management systems, and in-car entertainment
systems. Check that the vehicle owner has the necessary
information to make all electronic equipment function
correctly after battery reconnection.

Important

If the battery is not disconnected, exercise extreme caution
during the installation and install the fuses only when the
installation is ready to be checked. For more information,
refer to “Checking the Installation” on page 25.

Disconnect the vehicle’s battery unless specifically prohibited from
doing so by the customer, vehicle manufacturer, agent, or supplier.

Important

Route the cable in a manner that minimizes coupling of
electric vehicle systems such as alternators into the radio.

Important

Protect the power cable from engine heat, sharp edges and
from being pinched or crushed.

Run the power cable between the radio’s mounting position and the
power source and cut it to length, allowing approximately 8 inches
(20 cm) excess at the radio end.

Plug the power cable into the power connector of the radio.

Cut the negative and the positive wires where the in-line fuse holders
will be placed (as close to the power source as possible).

Important

Insert each end of the negative wire into each of the fuse
crimp-terminals and crimp them to force the metal contacts onto
the wires.

Push the two crimp-terminals into the clear plastic fuse cover. Close
the cover while the next steps are completed.

Repeat steps 5 and 6 for the positive wire.

Connect the negative wire to the battery ground terminal

Connect the positive wire to the battery positive terminal.

Important

Do not install the fuses until the installation is ready to be
checked. For more information, refer to “Checking the
Installation” on page 25.

Installing the Radio

Do not install the fuses until the installation is ready to be
checked. For more information, refer to “Checking the
Installation” on page 25.

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

2.6

Connecting a Remote Speaker
If a high-power remote speaker is required, Tait recommends using:
■

TMAA10-06 high-power remote speaker for 40W/50W radios

■

TMAA10-03 high-power remote speaker for 25W radios.

If a different speaker is used, receptacles for the speaker pins of the power
connector are provided with the installation kit.
Connect the speaker to pins 2 (SPK–) and 3 (SPK+) of the power
connector described on page 17.
For more information, refer to the installation instructions provided with
the speaker, or to the relevant section of the service manual.

2.7

Connecting to the Auxiliary Connector (Ignition Signal,
Emergency Switch, External Alert Devices)
The auxiliary connector can be used to connect external devices and signals
that are typically connected to a radio. These devices and signals include:

Auxiliary Connector

■

the ignition signal to power up and power down the radio

■

an emergency switch to power up the radio (if required) and then enter
emergency mode

■

external alert devices.

The radio’s auxiliary connector is a 15-way standard-density
D-range socket.
Note

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

The space for a mating plug is limited to 1 5/8 inch (41mm) in
width and 11/inch (18 mm) in height. It is recommended that you
test the plug to be used before manufacturing a cable. Tait uses IPN
240-00020-55 for the plug.

Installing the Radio

Table 2.2

Pinout

Signal name

AUX GPI1

J
1)
1!
1@
1#
1$
1%

AUX GPI2

rear view

B
C
D
E
F
G
H
I

Auxiliary connector (radio)— pins and signals

Installing the Radio

Description

Signal type

General purpose digital
input. Programmable
function

Digital,
3V3 CMOS.

AUX GPI3

General purpose input
(ignition sense)

3V3 levels.
Protected for
+13.8V.

AUX GPIO4

AUX GPIO5

AUX GPIO6

Programmable function and
direction
Pads available to fit a higher
power driver transistor on
GPIO4 line

Digital, 3V3
CMOS input;
open collector
output with
pullup

AUX GPIO7

AUX TXD

Asynchronous serial port Transmit data

Digital,
3V3 CMOS

AUX RXD

Asynchronous serial port Receive data

Digital,
3V3 CMOS

AUD TAP IN

Programmable tap point into Analog
the Rx or Tx audio chain.
DC-coupled

AUD TAP OUT Programmable tap point out Analog
of the Rx or Tx audio chain.
DC-coupled

AUX MIC AUD Auxiliary microphone input.
Electret microphone biasing
provided. Dynamic
microphones are not
supported

Analog

RSSI

Analog RSSI output

Analog

+13V8 SW

Switched 13.8V supply.
Supply is switched off when
radio body is switched off

Power

AGND

Analog ground

Ground

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

Shielding

If the auxiliary cable is longer than 4 feet (1m) it is recommended that the
cable and connector backshell are shielded. Figure 2.5 shows the
recommended shielding arrangement. The earth braid wire (bare copper)
and aluminum foil should only be earthed at the radio end of the cable.
Figure 2.5

Auxiliary cable and connector shielding

metal D-range shroud in
contact with backshell
metal backshell
signal earth wire
cable insulation

aluminum foil
metal cable clamp
earth braid wire
analog ground pin

Ignition Signal

The ignition signal can be used to power up and power down the radio.
This will turn the radio off when the ignition key is off to avoid flattening
the battery, and will turn the radio on or return to its previous state (as
programmed) when the ignition key is on.
Note

A TMAA04-05 ignition sense kit is available. The kit comprises a
mating plug for the radio’s auxiliary connector and a 13 foot (four
metre) length of cable to connect to the vehicle’s ignition signal.

Note

The AUX GPI3 line must be programmed to ‘Power Sense
(Ignition)’ and active to ‘High’. For more information, refer to the
online help of the programming application.
Connect the ignition signal to pin 4 (AUX GPI3) of the
auxiliary connector.

Note

Emergency Switch

The logic thresholds for AUX GPI3 are based on 3V3 levels.
However, AUX GPI3 can be connected directly to a +13.8V
ignition signal.

The radio allows for connection of an emergency switch to any input line
to enter the emergency mode. If connected to the AUX GPI2 input line,
the radio can also use ‘emergency power sense’ to power up the radio to
enter the emergency mode.
Note

TM8100/TM8200 Installation Guide
© Tait Electronics Limited July 2005

The selected input line must be programmed to ‘Enter Emergency
Mode’ and active to ‘Low’. To use ‘emergency power sense’,
hardware link LK3 must be fitted (factory default), and AUX GPI2

Installing the Radio

must be used. For more information, refer to the service manual
and the online help of the programming application.
Connect a normally open switch between the pin of the input line
(pin 5 for AUX GPI2) and pin 15 (AGND) of the
auxiliary connector.
External Alert Device

The radio allows for output to external alert devices using the digital GPIO
lines of the auxiliary connector and the internal options connector.
AUX GPIO4 can be fitted with a power MOSFET (Q707) to directly
connect external alert devices (e.g. flashing light, buzzer, horn relay) to the
radio. Also, resistor R768 must be removed.
Important

Note

While the MOSFET is rated at 12 A (with heat sink), the
maximum allowable current of the connector and radio’s
earthing system is 2 A. Therefore, a horn must not be
connected directly to the radio. A horn relay must be used.

The selected output line must be programmed to ‘External Alert 1
or 2’, active to ‘Low’, and signal sate to ‘Momentary’.
Connect the external alert device to the pin of the output line (pin 10
for AUX GPIO4) and pin 8 (+13V8 SW) of the auxiliary connector
(or a different positive battery connection).
This means that the negative side of the alert device must be connected to AUX GPIO4 and the positive side to pin 8 (+13V8 SW).
The external alert device must be capable of accepting a voltage of
between 10V and 18V.

Installing the Radio

2.8

Installing the Radio
1.

Connect the antenna cable, power cable, and—if applicable—the
auxiliary cable to the rear of the radio.

Position the radio in the U-bracket so that the holes in the U-bracket
line up with the holes in the radio chassis.

Screw the radio into position using the four thumb screws provided,
but without fully tightening the screws.

Adjust the position of the radio in the U-bracket for the best viewing
angle, then tighten the thumb screws.

Figure 2.6

Installing the radio in the U-bracket

Installing the Radio

2.9

Installing the Microphone
This section describes the radio’s microphone connector and the information
required to connect the microphone and install the microphone clip.
Important

Connecting the
Microphone

The microphone grommet must be installed whenever the
microphone is plugged into the microphone socket:
■

to prevent damage to the microphone socket when
there is movement of the microphone cord, and

■

to ensure that the control head is sealed against water,
dust and other environmental hazards.

Plug the microphone into the microphone socket.

Slide the grommet along the microphone cord and push two adjacent
corners of the grommet into the microphone socket cavity.

Squeeze the grommet and push the remaining corners into position.

Check that the grommet is seated correctly in the cavity.

Installing the
Figure 2.7

Correct remote cable grommet seating

microphone
grommet
control head

Microphone Clip

Warning!! Safe radio mounting
■

Mount the microphone where it will not interfere with:
■ the deployment of passenger airbags
■ the vehicle operator controls
■ the vehicle operator’s view.

Important

Only install the microphone clip provided. If a nonstandard microphone clip is used, the correct operation of
the microphone hookswitch cannot be guaranteed.

Install the microphone clip in the most convenient location using the screws
provided. The microphone must be within reach of the user but in such a
position that the PTT (press-to-talk) key cannot be inadvertently activated
or jammed.

Installing the Radio

2.10

Checking the Installation
Warning!! Danger of fire. The radio’s protection mechanisms rely
on the correct fuses on both the negative and positive
power supply leads being present. Failure to fit the
correct fuses may result in fire or damage to the radio.
The 40W/50W radios use 20A fuses; the 25W radios
use 10A fuses. For part numbers of the fuses, refer to
“Checking the Equipment for Completeness” on
page 9.
1.

Insert the fuses into the power leads.

Switch on the radio to confirm that it is operational, but do
not transmit.

Connect an in-line power meter between the radio and the antenna.

Transmit and measure the forward and reflected power levels.
Less than 4% of the forward power should be reflected. If this is not
achieved, check the installation, including the antenna length.

Start reducing the length of the antenna in steps of 0.1 inches to
0.2 inches (2 to 5 mm). Measure the power levels at each step.

Important
6.

2.11

Some antennas are pre-tuned and must not be cut. Check
with the manufacturers’ instructions.

Once the reflected power levels are within tolerance, make a call to
another party on the radio.

Blank Control Head
The blank control head on the TM8105 radio has a 9-way D-range plug on
the control head, for programming.
Important

When the programming connector is not in use, the
connector seal must be installed. This ensures that the
control head is sealed against water, dust and other
environmental hazards.

Installing the Radio

Figure 2.8

TM8105 radio with the blank control head

programming
connector
(connector seal
installed)

Pin allocations for
the blank
control head

The pin allocations for the programming connector are explained in the
following table.
Table 2.3

Programming connector for the blank control head —pins and signals

Pinout

front view

2.12

Signal name

Description

RX AUD

Receive audio output (after
volume control)

TXD

Asynchronous serial port: transmit data

MIC AUD

Microphone audio input

RXD

Asynchronous serial port: receive data

ON/OFF

Hardware power on/software power off
input (active low)

+13.8V

Unswitched 13.8V power supply

PTT

PTT input

AGND

Analogue ground

DGND

Digital ground

RJ45 Control Head
The RJ45 control head on the TM8252 telemetry radio has one RJ45
socket installed and an cavity where another RJ45 can be installed. The
control head also has a power on/off LED.
Important

Installing the Radio

When a connector is not in use, the RJ45 bung for the
connector must be installed. This ensures that the control
head is sealed against water, dust and other
environmental hazards.

Figure 2.9

TM8252 telemetry radio

programming
connector
(bung removed)
RJ45 bung
on/off LED

Pin allocations for
the RJ45
control head

The pin allocations for the RJ45 programming connector are explained in
the following table.
Table 2.4

Programming connector for the RJ45 control head— pins and signals

Pinout

front view

Signal name

Description

RX AUD

Receive audio output (after volume control)

+13.8V

Unswitched 13.8V power supply

TXD

Asynchronous serial port: transmit data

PTT

PTT input

MIC AUD

Microphone audio input

AGND

Analogue ground

RXD

Asynchronous serial port: receive data

ON/OFF

Hardware power on/software power off
input (active low)

Installing the Radio

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This legal document is an Agreement between you (the
“Licensee”) and Tait Electronics Limited (“Tait”). By using any
of the Software or Firmware items prior-installed in the related
Tait product, included on CD or downloaded from the Tait
website, (hereinafter referred to as “the Software or Firmware”)
you agree to be bound by the terms of this Agreement. If you do
not agree to the terms of this Agreement, do not install and use
any of the Software or Firmware. If you install and use any of the
Software or Firmware that will be deemed to be acceptance of the
terms of this licence agreement.
The terms of this Agreement shall apply subject only to any
express written terms of agreement to the contrary between Tait
and the Licensee.

Licence
TAIT GRANTS TO YOU AS LICENSEE THE NON-EXCLUSIVE
RIGHT TO USE THE SOFTWARE OR FIRMWARE ON A SINGLE
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COPY THE SOFTWARE OR FIRMWARE INTO ANY MACHINE
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Notes

Cable Connections
Terminating the antenna cable
bbbbbbbbbbbb
aaaaaaaaaaaa
aaaaaaaaaaaa
bbbbbbbbbbbb
aaaaaaaaaaaa
bbbbbbbbbbbb
aaaaaaaaaaaa
bbbbbbbbbbbb
bbbbbbbbbbbb
aaaaaaaaaaaa
aaaaaaaaaaaa
bbbbbbbbbbbb
5/16"
(8 mm)

5/32"
(4 mm)

9/16"
(14 mm)

For more information, refer to “Installing the Antenna” on page 16.

Power and remote speaker connections
40W/50W radio

rear view

25W radio
1

Signal

Function

AGND

Earth return

SPK–

External speaker –

SPK+

External speaker +

+13V8 BATT

DC power input (10.8V to 16.0V)

rear view

For more information, refer to “Connecting the Power Cable to the Power Source” and
“Connecting a Remote Speaker” on page 17.

Ignition sense, emergency switch, and external alert device connections

B
C
D
E
F
G
H
I

J
1)
1!
1@
1#
1$
1%

rear view

Signal

Function

AUX GPI3

Ignition sense

AUX GPI2

Emergency switch +

+13V8 SW

External alert device +

AUX GPIO4

External alert device –

AGND

Emergency switch –

For more information, refer to “Connecting to the Auxiliary Connector (Ignition Signal,
Emergency Switch, External Alert Devices)” on page 19.

www.taitworld.com

MMA-00028-01

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Modify Date                     : 2005:08:15 14:47:33+13:00
Keywords                        : TM8100, TM8200, MMA-00028, mobile, radio
Author                          : Tait Electronics Limited
Title                           : TM8100/TM8200 Installation Guide
Create Date                     : 2005:08:15 14:29:19
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Page Mode                       : UseOutlines
Page Layout                     : SinglePage

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