Motorola Dimetra MTM300 Installation Instructions Manual

Printed on recycled paper. Environmentally friendly cover and spiral bound. Issued: 03.2001. RNSG European Publications Department

MTM300, Mobile Radios

Installation Instructions

68P02400U20-D

@6802400U20@

Manual Revisions

Changes which occur after this manual is printed are described in Manual Revisions. These
Manual Revisions provide complete information on changes including pertinent parts lists
data.

Computer Software Copyrights

The products described in this manual may include copyrighted computer programs stored
in semico nductor memories or other media. Laws in the United States and other countries
preserve for Motorola/Europe and Motorola Inc. certain exclusive rights for copyrighted
computer programmes, including the right to copy or reproduce in any form the
copyrighted computer program. Accordingly, any copyrighted computer programs
contained in the products described in this manual may not be copied or reproduced in any
manner without the express written permission of the holders of the rights. Furthermore,
thepurchaseoftheseproductsshall not be deemed to grant eitherdirectlyorbyimplication,
estoppel, or otherwise, any licence under the copyrights, patents, or patent applications of
the holders of the rights, except for the normal non-exclusive royalty free licence to use that
arises by operation of law in the sale of the product.

ii

Contents

ManualRevisions..............................................................................ii

ComputerSoftwareCopyrights...................................................................ii

1-SafetyandGeneralinformation.................................................................1

Important Information on Safe and Efficient Operation

ReadthisInformationbeforeUsingyourRadio......................................................1

RadioFrequency(RF)OperationalCharacteristics.................................................1

RadioOperationandEMEExposure...............................................................1

AntennaCare..............................................................................2

Approved Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........2

Electromagnetic Interference/Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Facilities..................................................................................2

MedicalDevices............................................................................2

SafetyandGeneral.............................................................................3

OperationalWarnings ..........................................................................3

MobileRadioOperationandEMEExposure ........................................................4

AntennaInstallation............................................................................4

MobileAntennas ...........................................................................4

FixedSiteAntennas.........................................................................4

AntennaProductInformation.....................................................................5

EMCGuidelines...............................................................................5

EuropeanUnionDirectivesConformanceStatement..................................................5

2-DashMounting...............................................................................7

General......................................................................................7

InstallationPlanning............................................................................7

TrunnionInstallation...........................................................................9

RadioInstallationandConnections................................................................9

OptionalHLN6372KeylockInstallation...........................................................11

PowerCableInstallation .......................................................................12

MicrophoneInstallation........................................................................13

SpeakerInstallation...........................................................................13

Introduction ..............................................................................13

SpeakerInstallation........................................................................13

InstallationInstructionsforAccessoryPlug........................................................14

Introduction ..............................................................................14

DisassemblingandReassemblingAccessoryPlug................................................14

Disassembly...........................................................................14

Reassembly............................................................................15

ConnectionPlanforSpeaker,Hands-FreeMicrophone,andPTTSwitch..................................16

ConnectionPlanforAlarmRelay................................................................16

ConnectionPlanforEmergencySwitch ...........................................................17

Connection Plan and Installation of Ignition Sense Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Installation of Ignition Sense Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

3-RemoteMounting............................................................................19

General.....................................................................................19

InstallationPlanning...........................................................................19

Installing and Connecting the MTM300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

iii

TransceiverTrunnionInstallation.............................................................21

TransceiverInstallation.....................................................................21

TransceiverConnections....................................................................22

ControlHeadMountingTrunnionInstallation...................................................22

ControlHeadInstallation....................................................................23

ControlHeadConnections...................................................................23

JunctionBoxInstallationandConnections.........................................................23

Installation...............................................................................23

Connections..............................................................................23

OptionalHLN6372KeylockInstallation ..........................................................24

PowerCableInstallation.......................................................................25

MicrophoneInstallation........................................................................26

SpeakerInstallationandConnection..............................................................27

Introduction..............................................................................27

SpeakerInstallation........................................................................27

Accessory Plug Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SpeakerConnection........................................................................28

ConnectionsPlansforJunctionBoxTerminal......................................................29

ConnectionPlanforSpeaker.................................................................29

ConnectionPlanforAlarmRelay.............................................................29

ConnectionPlanforEmergencySwitch...........................................................29

Connection Plan and Installation of Ignition Sense Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4-DesktopMounting...........................................................................31

General ....................................................................................31

InstallationPlanning..........................................................................31

DesktopInstallation...........................................................................32

InstallationInstructionsforAccessoryPlug........................................................33

DisassemblingandReassemblingAccessoryPlug................................................33

Disassembly...........................................................................34

Reassembly ...........................................................................35

DesktopTrayHLN6404.......................................................................36

5-MotorcycleInstallation.......................................................................37

General ....................................................................................37

InstallationPlanning..........................................................................37

Installing and Connecting the MTM300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

TransceiverTrunnionInstallation.............................................................41

TransceiverInstallation.....................................................................41

TransceiverConnections....................................................................42

ControlHeadMountingTrunnionInstallation...................................................42

ControlHeadInstallation....................................................................43

ControlHeadConnections...................................................................44

JunctionBoxInstallationandConnections.........................................................44

Installation...............................................................................44

Connections..............................................................................44

AntennaMounting............................................................................45

PowerCableInstallation.......................................................................45

MicrophoneInstallation........................................................................46

SpeakerInstallationandConnection..............................................................47

Introduction..............................................................................47

SpeakerInstallation........................................................................47

SpeakerConnection........................................................................47

iv

ConnectionsPlansforJunctionBoxTerminal.......................................................48

ConnectionPlanforSpeaker.................................................................48

ConnectionPlanforAlarmRelay .............................................................48

ConnectionPlanforEmergencySwitch ...........................................................48

Connection Plan and Installation of Ignition Sense Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

, Motorola, and Dimetra are trademarks of Motorola Inc.

v

List of Illustrations

2-DashMounting ..............................................................7

Figure1. ExampleofToporUnderDashMounting ...................................................7

Figure2. ExampleofInDashMounting.............................................................8

Figure3. DashMountInstallation..................................................................8

Figure4. DashMountInstallationwithDataAdapterFLN2659(forDataApplications) .......................9

Figure5. StrainReliefClipInstallation ............................................................10

Figure6. TrunnionMount—TransmissionHumpMounting ............................................10

Figure7. TrunnionMount—BelowDashMounting ..................................................10

Figure8. ConnectionstoRadio...................................................................11

Figure9. OptionalKeylockInstallation ............................................................11

Figure10. CableRoutingintoEngineCompartment ..................................................12

Figure11. PowerCableAssembly ................................................................13

Figure12. MountingSpeakerunderDashboard ......................................................14

Figure 13. Disassembling and Reassembling Accessory Plug - Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure14. Speaker,Hands-FreeMicrophone,andPTTSwitchConnectionPlan ............................16

Figure15. AlarmRelayConnectionPlan ...........................................................16

Figure16. ConnectionPlanforEmergencySwitch ...................................................17

Figure17. ConnectionPlanforIgnitionSenseCable..................................................17

3-RemoteMounting ...........................................................19

Figure18. ExampleofRemoteMounting...........................................................20

Figure19. RemoteMountInstallation(DataJunctionBoxshown) .......................................20

Figure20. TransceiverTrunnionMounting .........................................................21

Figure21. ConnectionstoRadio..................................................................22

Figure22. ControlHeadMountingTrunnion ........................................................22

Figure23. ConnectionstoJunctionBox ............................................................24

Figure24. OptionalKeylockInstallation ...........................................................24

Figure25. CableRoutingintoEngineCompartment ..................................................25

Figure26. PowerCableAssembly ................................................................26

Figure27. MountingSpeakerunderDashboard ......................................................27

Figure 28. Disassembling and Reassembling Accessory Plug - Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure29. SpeakerConnection ...................................................................28

Figure30. AlarmRelayConnectionPlan ...........................................................29

Figure31. EmergencySwitchConnectionPlan ......................................................29

Figure32. ConnectionPlanforIgnitionSenseCable..................................................30

4-DesktopMounting ..........................................................31

Figure33. DesktopInstallation(withTrayHLN6404).................................................31

Figure 34. Desktop Installation with Tray HLN6405 and Data Adapter FLN2659 (for Data Applications) . . . . . . . . 32

Figure35. ConnectingtheSpeakerCable...........................................................32

Figure 36. Disassembling and Reassembling Accessory Plug - Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure37. ConnectionPlanforSpeaker ............................................................35

Figure38. DesktopTrayHLN6404 ...............................................................36

5-MotorcycleInstallation ......................................................37

Figure39. RemoteMountMotorcycleInstallationOverview ...........................................38

Figure40. ExampleofMotorcycleInstallation ......................................................39

Figure41. ExampleofExternalPTTControlledInstallation............................................39

Figure 42. Example of Manual Select Between “Front” and “Back” use of Microphone and Loudspeaker . . . . . . . . 40

Figure43. ExampleofInstallationwithSerialResistorforVolumeAdjustment ............................40

Figure44. ExampleofInstallationwithMicrophoneInterface ..........................................41

Figure45. TransceiverTrunnionMounting .........................................................42

Figure46. ConnectionstoRadio..................................................................42

vi

Figure47. ControlHeadMountingTrunnion ........................................................43

Figure48. GroundControlHeadasShown..........................................................43

Figure49. WiringDiagram ......................................................................44

Figure50. ConnectionstoJunctionBox ............................................................45

Figure51. PowerCableAssembly.................................................................46

Figure52. ExampleofMountingSpeakerTrunnioninMotorcycleBox ...................................47

Figure53. SpeakerConnection ...................................................................47

Figure54. AlarmRelayConnectionPlan ...........................................................48

Figure55. EmergencySwitchConnectionPlan ......................................................48

Figure56. ConnectionPlanforIgnitionSenseCable ..................................................49

vii

List of Tables

1-SafetyandGeneralinformation ................................................1

Table1. RatedPowerandLateralDistance ..........................................4

Table 2. Antenna Product Information ..............................................5

3-RemoteMounting ...........................................................19

Table 3. Mechanical Parts for Control Head Mounting Trunnion ........................23

Table 4. Mechanical Parts for FLN2451 Junction Box and FLN2483 Data Junction Box ..... 24

4-DesktopMounting ..........................................................31

Table 5. Mechanical Parts for Desktop Tray HLN6404 ................................36

5-MotorcycleInstallation ......................................................37

Table 6. Mechanical parts for Control Head Mounting Trunnion (Motorcycle Version) ......43

Table 7. Mechanical Parts for FLN2451 Junction Box and FLN2483 Data Junction Box ..... 45

viii

SAFETY AND

GENERAL INFORMATION 1

IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION
READ THIS INFORMATION BEFORE USING YOUR RADIO

The information provided in this document supersedes the general s afety information
contained in installation manuals published prior to July 2000. For information regarding
radio use in a hazardous atmosphere please refer to the Factory Mutual (FM) Approval
Manual Supplement or Instruction Card, which is included with radio models that offerthis
capability.

RADIO FREQUENCY (RF) OPERATIONAL CHARACTERISTICS

Your radio contains a radio frequency transmitter to convey the information you wish to
send as well as occasional automatic signals used to sustain connection with the wireless
network, and a receiver which enables you to receive communication and connection
information from the network.

RADIO OPERATION AND EME EXPOSURE

Your Motorola radio is designed to comply with the following national and international
standards and guidelines regarding exposure of human beings to radio frequency
electromagnetic energy:

• United States Federal Communications Commission, Code of Federal Regulations;
47 CFR part 2 sub-part J

• American National Standards Institute (ANSI) / Institute of Electrical and Electronic
Engineers (IEEE) C95. 1-1992

• Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition

• National Council on Radiation Protection and Measurements (NCRP) of the United
States, Report 86, 1986

• International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998

• Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to
Radiofrequency Electromagnetic Fields in the Frequency Range from 3 kHz to
300 GHz, 1999

• Australian Communications Authority Radiocommunications (Electromagnetic
Radiation - Human Exposure) Standard 1999 (applicable to wireless phones only)

Safety and General information 1

To assure optimal radio performance and make sure human exposure to radio
frequency electromagnetic energy is within the guidelines set forth in the above
standards, always adhere to the following procedures:

ANTENNA CARE

Use only the supplied or an approved replacement antenna. Unauthorised antennas,

modifications, or attachments could damage the radio and may violate FCC regulations.

DO NOT hold the antenna when the radio is “IN USE”. Holding the antenna affects
call quality and may cause the radio to operate at a higher power level than needed.

APPROVED ACCESSORIES

For a list of approved Motorola accessories, look in the accessory section of the service
manual.

ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY

NOTE: Nearly everyelectronicdeviceissusceptibleto electromagnetic interference (EMI)
if inadequately shielded, designed or otherwise configured for electromagnetic
compatibility.

FACILITIES

MEDICAL DEVICES

To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in
any facility where posted notices instruct you to do so. Hospitals or health care facilities
may be using equipment that is sensitive to external RF energy.

• Pacemakers

The HealthIndustryManufacturersA ssociation recommends that a minimum separation of
15 centimetres be maintained between a wireless radio and a pacemaker. These
recommendations are consistent with those of the U.S. Food and Drug Administration.

Persons with pacemakers should:

• ALWAYS keep the radio more than 15 centimetres from their pacemaker when the
radio is turned ON.

• turn the radio OFF immediately if you have any reason to suspect that interference is
taking place.

• Hearing Aids

Some digital wireless radios may interfere with some hearing aids. In the event of such
interference, you may want to consult your hearing aid manufacturer to discuss
alternatives.

2 Safety and General information

• Other Medical Devices

If you use any other personal medical device, consult the manufacturer of your device to
determine if it is adequately shielded from RF energy.Your physician may be able to assist
you in obtaining this information.

SAFETY AND GENERAL

• Use While Driving

Check the laws and regulations on the use of radios in the area where you drive. Always
obey them

When using your radio while driving, please:

• Give full attention to driving and to the road.

• Use hands-free operation, if available.

• Pull off the road and park before making or answering a call if driving conditions so
require.

OPERATIONAL WARNINGS

!

!

W A R N I N G

• For Vehicles with an Air Bag

Do not place a radio in the area over an air bag or in the air bag deployment area. Air bags
inflate with great force. If a radio is placed in the air bag deployment area and the air bag
inflates, the radio may be propelled with great force and cause serious injury to occupants
of the vehicle.

• Potentially Explosive Atmospheres

Turn off your radio prior to entering any area with a potentially explosive atmosphere,
unless it is a radio type especially qualified for use in such areas as “Intrinsically Safe” (for
example, Factory Mutual, CSA, UL, or CENELEC Approved). Do not remove, install, or
charge batteries in such areas. Sparks in a potentially explosive atmosphere can cause an
explosion or fire resulting in bodily injury or even death.

NOTE: The areas with potentially explosive atmospheres referred to above include fueling
areas such as below decks on boats, fuel or chemical transfer or storage facilities, areas
where the air contains chemicals or particles, such as grain, dust or metal powders,and any
other area where you would normally be advised to turn offyour vehicle engine. Areas with
potentially explosive atmospheres are often but not always posted.

• Blasting Caps and Areas

To avoid possible interference with blasting operations, turn off your radio when you are
nearelectricalblastingcaps,inablasting area, or in areas posted: “Turnoff two-wayradio”.
Obey all signs and instructions.

Safety and General information 3

MOBILE RADIO OPERATION AND EME EXPOSURE

T o assure optimal radio performance and that human exposure to radio frequency
electromagnetic energy is within the guidelines referenced earlier in this document,
transmit only when people outside the vehicle are at least the minimum lateral distance
away from a properly installed, externally-mounted antenna. Table 1 lists the minimum
lateral distance for several d ifferent ranges of rated radio power.

Table 1 Rated Power and Lateral Distance

Rated Power of Vehicle-installedMobile

ANTENNA INSTALLATION

MOBILE ANTENNAS

Recommended mobile antenna installations are limited to metal body vehicles at the
centre of the roof and centre of the trunk deck locations.

The antenna installation must additionally be in accordance with:

a) The requirements of the antenna manufacturer/supplier

b) I nstructions in the Radio Installation Manual

Minimum Lateral Distance from

Two-way Radio

Less than 7 Watts 20 Centimetres

7 to 15 Watts 30 Centimetres

16 to 50 Watts 60 Centimetres

More than 50 Watts 90Centimetres

Transmitting Antenna

FIXED SITE ANTENNAS

Mobile radio equipment is sometimes installed at a fixedlocation and operated as a control
station or as a fixed unit. In such cases the antenna installation must comply with the
following requirements in order to assure optimal performance and make sure human
exposure to radio frequency electromagnetic energy is within the guidelines set forth in the
above standards:

• The antenna must be mounted outside the building

• Mount the antenna on a tower if at all possible

• If the antenna is to be mounted on a building then it must be mounted on the roof.

• As with all fixed site antenna installations, it is the responsibility of the licensee to
manage the site in accordance with applicable regulatory requirements and may
require additional compliance actions such as site survey measurements, signage, and
site access restrictions in order to insure that exposure limits are not exceeded.

4 Safety and General information

ANTENNA PRODUCT INFORMATION

The antenna kit numbers are used with the following radio models:

Table 2 Antenna Product Information

Kit Number Description Used in Radio Models

EMC GUIDELINES

EUROPEAN UNION DIRECTIVES CONFORMANCE STATEMENT

FAE5521 1/4 Wave Rooftop

Antenna 380-400 MHz

FAE6003 1/4 Wave Rooftop

Antenna 410-430 MHz

M12PCN6TZ5BN, M12PCN6TZ7BN, M12PCN6TZ8BN

M12QCN6TZ5BN, M12QCN6TZ7BN, M12QCN6TZ8BN

Refer to ISO/TC22/SC3/WG3 N843 draft report, EMC (Electromagnetic Compatibility)
guidelines for installation of after market radio frequency transmitting equipment in road
vehicles.

This product is in conformance with the TETRA (TErrestrial Trunked RAdio) standard.

This product is in conformance with the requirements of the applicable EU Council
Directives.

Declarations of Conformance with the requirements are located at:

Motorola Ltd.

Jays Close, Viables Industrial Estate

Basingstoke, Hampshire RG22 4PD

United Kingdom

Safety and General information 5

NOTES

6 Safety and General information

Dash Mounting

y

General

The MTM300 is mounted in a trunnion either on the transmission hump or on top of or
under the dash. Refer to Figures 1 and 2.

Planning is the key to fast, easy radio installation. Before a hole is drilled or a wire is run,
inspect the vehicle and determine how and where you intend to mount the antenna, radio,
and accessories. Plan wire and cable runs to provide maximum protection from pinching,
crushing, and overheating.

The installation planning should only be undertaken by persons who are competent and
able to ensure that the complete installation fulfils its regulatory requirements, such as
EMC (ElectroMagnetic Compatibility).

To install the MTM300, proceed as explained in the following paragraphs while referring
to Figure 3.

Installation Planning

The following l ist of considerations should, as a minimum, be checked during installation
planning:

• When mounting the trunnion on the transmission hump, take care the transmission
housing is not affected.

• Mount the radio horizontally at a position which enables the driver to view the controls
and o perate them easily.

• Wherever you place the radio, ensure that it is protected from dirt and moisture.

• Verify that there is sufficient space around the radio to allow air flow and removal.

• Check whether you have enough space to accommodate the power cable connector and
antenna coaxial cable.

• Verify that the antenna cable is routed in the shortest way, to minimize power loss over
the cable.

• Check that the mounting surface is able to support the weight of the radio.

• Although the trunnion can be mounted on a plastic board, it is recommended to attach
it to the metal frame of the vehicle.

Antenna

Radio

Speaker

Radio

Batter

Figure 1 Example of Top or Under Dash Mounting

Dash Mounting 7

Antenna

Speaker

Radio

Battery

Figure 2 Example of In Dash Mounting

8 Dash Mounting

Speaker

Figure 3 Dash Mount Installation

Figure 4 Dash Mount Installation with Data Adapter FLN2659 (for Data Applications)

Trunnion Installation

1. Using the trunnion bracket as a template, mark the positions of the holes on the

2. Centerpunch the spots you have marked and drill a 4 mm Ø hole at each.

3. Secure the trunnion mounting bracket with the four screws provided.

Radio Installation and Connections

1. Connect the accessory wires to the accessory plug as explained in the various

mounting surface (see Figure 6 or Figure 7). Use the innermost four holes for a
curved mounting surface such as the transmission hump, and use the four outmost
holes for a flat surface such as under the dash.

connection plans in this section.

Dash Mounting 9

2. Plug t he accessory plug into the accessory connector.

3. Snap the strain relief clip, which is already threaded over the speaker cable and other
accessory wires (if any), into the slot at the back of the radio.

Accessory Plug

Wires

Strain Relief Clip

Figure 5 Strain Relief Clip Installation

4. Ensure that the plastic guides are aligned (horizontal) to the transceiver grooves.

5. Slide the radio into the plastic guides until it snaps into place.

6. Secure the radio with the two wing screws provided.

Wing Screw

Trunnion

Groove

Thread Hole for
Wing Screw

Plastic Guides

Tabs

Mounting Surface

Trunnion

Wing Screw

Wing Screw

Holes for
S-Hook

Figure 6 Trunnion Mount—Transmission Hump Mounting Figure 7 Trunnion Mount—Below Dash Mounting

7. After mounting the antenna (see page 11), run the antenna coaxial cable to the radio
mounting location. If necessary, cut off the excess cable.

8. Connect the antenna cable connector to the BNC antenna connector at the rear of the
radio (see Figure 8). Ensure that the antenna’scable connector is fully tightened. DO
NOT use an adaptor between the antenna cable connector and the radio.

10 Dash Mounting

9. Install the power cable (see page 12). Cut the power supply cable to the desired
length and plug the power cable into the radio power connector (see Figure 8).

10. Route other accessory wires to appropriate locations in the vehicle and connect them
to their respective accessories. (For connecting the ignition sense cable, refer to
page 18.)

11. Mount the microphone clip to a convenient spot near t he radio.

12. Plug the microphone into the connector on the radio front panel.

13. Attach the S-hook and crimp (on microphone cable) to the hole on the r adio
trunnion.

Vehicle Chassis Ground
(Black)

Power Connector

To Battery+
via Fuse(F1)

Antenna

Connector (BNC)

(Red)

Optional HLN6372 Keylock Installation

To install optional Keylock HLN6372 (see Figure 9), proceed as follows:

1. Place the two keylocks on each side of the mounting trunnion to cover the two wing
screws holding the radio.

2. Secure the keylocks w ith the lock key.

Key

Figure 9 Optional Keylock Installation

Figure 8 Connections to Radio

Wing Screw

Mounting
Trunnion

Keylock

Lock

HLN6372

Dash Mounting 11

Power Cable Installation

Before applying 13.8 VDC primary power to radio for the first time, inspect wiring going

!

C a u t i o n

to accessory connector very carefully. Ensure that pin 1 (speaker+), and pin 2 (speaker-)
ARE NOT connected to chassis ground. Failure to follow this precaution may result in
permanentdamageto the radio andrequirereplacementof audio power amplifierintegrated
circuit and/or complete transceiver board.

This radio must be operated only in negative ground electrical systems. Reverse polarity
will cause the cable fuse to blow. Check the vehicle ground polarity before you begin
installation to prevent wasted time and effort.

The DC power cable shipped with the mobile radio is long enough for installation in most
vehicles. Begin the power cable installation in the following manner:

1. Determine a routing plan for the power cable with reference to where the radio is to

2. Locate an existing hole with a grommet in the vehicle fire wall, or drill a 10 mm Ø

High degree of care should be exercised not to damage any existing vehicle wires.

!

be mounted.

access hole at the location for passing the power cable into the engine compartment.
Install a grommet with a 5 mm inner diameter in the access hole to avoid damage to
the cable.

C a u t i o n

3. From inside the vehicle, feed the red and black leads (without lugs attached) through
the access hole and into the engine compartment (see Figure 10).

To Radio

Black Lead

Firewall

Red Lead

Grommet

Engine Compartment

Figure 10 Cable Routing into Engine Compartment

4. Locate the nearest available vehicle chassis ground mounting point and shorten the
black lead to remove excess cable length.

5. Install ring lugs (supplied) onto stripped end of power cable black lead, and onto
stripped end of red lead on fuse holder (see F igure 11).

6. Locate the fuse holder as close to the battery as possible and away from any hot
engine component. Mount the fuse holder using the provided mounting hole and
dress wires as necessary. Connect the fuse holder red adaptor lead plug t o the mating
receptacle on the red lead of the power cable (see Figure 11).

7. Connect the power cable black lead directly to the vehicle chassis ground.

12 Dash Mounting

8. Connect the power cable red lead from the fuse holder to the positive (+) battery
terminal. Make sure the adapt or cable is connected to the main power cabl e red lead.

9. Plug fuse into in-line fuse holder (see Figure 11).

Note

Failure to mount the red lead of the power cable kit directly to the battery may result in
severe alternator whine interference.

Microphone Installation

Firewall

Adapter

Red Lead

Black Lead

Fuse

Molded In-Line

Fuse Holder

Red Lead

Mounting

Hole

Engine

Compartment

To Vehicle

Chassis Ground

Figure 11 Power Cable Assembly

Cover

Red Lead

Ring

Lugs

To Battery (+)

Speaker Installation

Introduction

Speaker Installation

See the instructions supplied with the microphone for complete installation information.

When connecting the various microphones available, make s ure to attach the “S Hook”
provided on the microphone cable to the trunnion.

The MTM300 ships standard with the external speaker. The speaker is supplied with an
accessory plug already attached to its cable and a s train relief clip which is threaded over
the cable between the speaker and accessory plug.

1. Ensure that the place where you are g oing to install the speaker is within user’s reach
and that the speaker will not obstruct vehicle operation.

2. Loosen the two wing screws of the trunnion bracket and remove the speaker.

3. Using the trunnion bracket as template, mark the locations of the three mounting
holes.

4. Centerpunch and drill a 4 mm Ø hole at each location.

5. Mount the trunnion bracket with the screws supplied (see Figure 12).

Dash Mounting 13

6. Insert the speaker into the trunnion bracket and tighten the two wing screws.

7. Open the accessory plug and follow the instructions on pages 14-18.

Figure 12 Mounting Speaker under Dashboard

Installation Instructions for Accessory Plug

Introduction

Toconnectthevarious accessories to theMTM300,usethe speaker’saccessory plug. When
using the FLN2659 Data Adapter, do not use the speaker’s accessory plug (see Figure 4,
page 9). For speaker and other accessory connections with FLN2659, see Section 3.

Disassembling and Reassembling Accessory Plug

Numbers for pin locations in the pin housing of the accessory plug are visible only when

Note

Disassembly

the p in housing is removed from the shell and its wings are fully open.

1. Squeeze tabs together (see Figure 13, A), and remove the cover from the accessory
plug (see Figure 13, B).

2. Using thumb pressure from the bottom of the shell, push the pin housing up and out
of the shell (see Figure 13, C).

3. Open out both wings of the pin housing (see Figure 13, D).

4. Remove the jumper wire from locations 4 and 9 in t he accessory plug.
If installed, remove the jumper wire from locations 1 and 2.
Connect the jumper wire to locations 21 and 10. (If an external emergency switch is
installed, do not connect the jumper wire to locations 21 and 10—see page 17.)

5. Pass the pin ends of the wires for any additional accessories (e.g., an ignition sense
cable), which are to be connected to the radio, through the eye of the strain relief
clip.

6. To connect the accessory wires to the accessory plug, see the various connection
plansinthissection.

14 Dash Mounting

.

g

Tabs

Cover

(In Place)

A

B

Cover

(Removed)

Reassembly

13 Location Side

Pin

Housing

Flat Side

Shell

Location Numbers
(Visible only when

wings are open)

Pin

Housing

14

15

16

17

18

19

20

21

22

Wing

23

24

25

Win

D

C

Figure 13 Disassembling and Reassembling Accessory Plug - Disassembly

1. Insert the pin housing back into the shell in the opposite way it was removed. Be
certain that the 13-location side of the pin housing is facing the flat side of the shell.
Also be sure that the pin housing snaps securely into the shell and is not cocked in
the shell.

2. Install the cover back onto the accessory plug by snapping the cover over the tabs

and pressing down.

Dash Mounting 15

Connection Plan for Speaker, Hands-Free Microphone, and PTT Switch

VIEW UPON

INSERTION SIDE

1

13

ACCESSORY

CONNECTOR

25

10

3

23

SHIELD

RED

SPEAKER

HANDS-FREE
MICROPHONE

Figure 14 Speaker, Hands-Free Microphone, and PTT Switch Connection Plan

• Remove the jumper wire from locations 4 and 9 in the accessory plug.

• If installed, remove the jumper wire from locations 1 and 2.

• Connect the jumper wire to locations 21 and 10. (If an external emergency switch is
installed, do not connect a jumper wire to locations 21 and 10—see page 17.)

!

Do not short pins 1 and 3 of the accessory connector t o ground, as this may damage the
radio.

C a u t i o n

Connection Plan for Alarm Relay

1

VIEW UPON

INSERTION SIDE

13

14

16

ALTERNATIVE

2514

16

4
9

RED

EXTERNAL PTT SWITCH

BUZZER

RED

BLK

RED

86

87

ALARM

85 30

RELAY

+12 V

• Remove the jumper wire from locations 4 and 9 in the accessory plug.

• If installed, remove the jumper wire from locations 1 and 2.

• Add the jumper wire to locations 21 and 10. (If an external emergency switch is
installed, do not connect a jumper wire to locations 21 and 10—see page 17.)

16 Dash Mounting

ACCESSORY

CONNECTOR

ALTERNATIVE

1

16

Figure 15 Alarm Relay Connection Plan

BLK

RED

86

85 30

BLK

RED

BLK

87

BLK

ALARM
RELAY

+12 V

+12 V

!

Do not short pin 16 on the accessory connector to ground, as this may damage the radio.

C a u t i o n

Connection Plan for Emergency Switch

VIEW UPON

INSERTION SIDE

13

ACCESSORY

CONNECTOR

1

2514

21

Figure 16 Connection Plan for Emergency Switch

• Remove the jumper wire from locations 4 and 9 in the accessory plug.

• If installed, remove the jumper wire from locations 1 and 2.

Connection Plan and Installation of Ignition Sense Cable

VIEW UPON

INSERTION SIDE

13

ACCESSORY

CONNECTOR

2514

15

EMERGENCY

SWITCH

IGNITION

SENSE

SWITCHED BATTERY VOLTAGE

CABLE

• Remove the jumper wire from locations 4 and 9 in the accessory plug.

• If installed, remove the jumper wire from locations 1 and 2.

• Connect the jumper wire to locations 21 and 10. (If an external emergency switch is

1

Figure 17 Connection Plan for Ignition Sense Cable

installed, do not connect a jumper wire to locations 21 and 10—see above.)

Dash Mounting 17

Installation of Ignition Sense Cable

An ignition sense cable is supplied with every Mobile Radio. Motorola strongly

Note

recommends that this ignition sense cable be used with every mobile installation of the
radio. Its purpose is to avoid the possibility that the radio may reset and, therefore, turn off,
during vehicle cranking, if the vehicle battery voltage drops below a certain level.

The ignition sense cable kit contains a thin cable and a fuse holder. To install the cable,
carry out the following s teps.

1. Connect the stripped lead of the fuse holder cable only to an ignition switched

terminal of t he fuse block. Use the supplied terminal or any other suitable terminal.

2. Mount the fuse holder using the mounting hole, and dress wires as required.

3. Cut the thin cable to the required length, crimp the supplied red lead to the stripped

lead of the thin cable, and connect it to the blue terminal of the fuse holder cable.

4. Connect the other end of the ignition sense thin cable to pin 15 of the accessory plug.

5. Insert the provided fuse into the fuse holder and close the cover.

18 Dash Mounting

Remote Mounting

General

In the remote mount version of the MTM300, the radio unit (transceiver) and the control
head are mounted in separate trunnions in the vehicle. A junction boxinterfaces the control
head and the transceiver through a pair of cables.

If purchased,a JunctionBoxwith Data enablesaddinga laptopto the remote configuration.

Planning is the key to fast, easy radio installation. Before a hole is drilled or a wire is run,
inspect the vehicle and determine how and where you intend to mount the antenna, radio,
and accessories. Plan wire and cable runs to provide maximum protection from pinching,
crushing, and overheating.

The installation planning should only be undertaken by persons who are competent and
able to ensure that the complete installation fulfils its regulatory requirements, such as
EMC (ElectroMagnetic Compatibility).

Installation Planning

To connect the MTM300, proceed as explained in the following paragraphswhile referring
to Figure 19.

The following l ist of considerations should, as a minimum, be checked during installation
planning:

• The best place for the transceiver is to place it on the trunk floor. Alternate locations
are under the front or rear seat, and under the rear speaker’s deck panel.

• Mount the control head horizontally at a position which enables the driver to view the
controls and operate them easily.

• Be sure the control head is close enough to the vehicle operator to permit easy access
to operating controls.

• Although the control head trunnion can be mounted on a plastic dashboard, it is
recommended that the mounting screws be located so they penetrate the supporting
metal frame of the dashboard.

• When mounting the junction box on the transmission hump, take care the transmission
housing is not affected. Prefer a hidden place, close to the control head.

• Wherever you place the units, ensure that it is protected from dirt and moisture.

• Verify that there is sufficient space around the units to allow air flow and removal.

• Check whether you have enough space to accommodate the power cable connector and

• Verify that the antenna cable is routed in the shortest way, to minimize power loss over

• Check that the mounting surface is able to support the weight of the units.

antenna coaxial cable.

the cable.

Remote Mounting 19

Antenna

Speaker

Control Head

Battery Junction Box

Figure 18 Example of Remote Mounting

Transceiver

Figure 19 Remote Mount Installation (Data Junction Box shown)

20 Remote Mounting

Junction Box
Terminal

Installing and Connecting the MTM300

Transceiver Trunnion Installation

1. Using the trunnion bracket as a template, mark the positions of the holes on the

mounting surface (see Figure 20).

mounting surface, and

2. Centerpunch the spots you have marked and drill a 4 mm Ø hole at each mark.

3. Secure the trunnion mounting bracket with the four screws provided.

Transceiver Installation

1. Ensure that the plastic guides are aligned (horizontal) to the transceiver grooves.

2. Slide the transceiver grooves into the plastic guides until it snaps into place.

3. Secure the transceiver with the two wing screws provided.

Wing Screw

Use the innermost four holes for a curved

use the four outmost holes for a flat surface.

Plastic Guides

Trunnion

Groove

Thread Hole for
Wing Screw

Tabs

Mounting Surface

Figure 20 Transceiver Trunnion Mounting

Wing Screw

Remote Mounting 21

Transceiver Connections

1. Connect the transceiver-to-junction box cable to the accessory connector.

2. After mounting the antenna, run the antenna coaxial cable to the transceiver
mounting location. If necessary, cut off the excess cable.

3. Connect the antenna cable connector to the antenna BNC connector at the rear of the
transceiver (see Figure 21). Ensure that the antenna’s cable connector is fully
tightened. DO NOT use an adaptor between the antenna cable connector and the
transceiver.

4. Install the power cable as explained on page 25. Cut the power supply cable to the
desired length and plug the power cable into the transceiver power connector (see
Figure 21).

Vehicle Chassis Ground
(Black)

Power Connector

Accessory
Connector(not visible)

Control Head Mounting Trunnion Installation

1. Using the control head trunnion as a template, mark the positions of the holes on the
mounting surface.

2. Centerpunch the spots you have marked and drill a 4 mm Ø (0.16 inch) hole at each
mark.

3. Secure the trunnion mounting bracket with the four screws supplied. See Figure 22
below and Table 3 for figure callouts.

1

To Battery+
via Fuse (F1)

Antenna

Connector (BNC)

(Red)

Figure 21 Connections to Radio

2

3

22 Remote Mounting

4

Figure 22 Control Head Mounting Trunnion

Table 3 Mechanical Parts for Control Head Mounting Trunnion

Control Head Installation

1. Install the bushings into the trunnion (see Figure 22).

2. Slide the control head into the mounting trunnion until it snaps into place.

3. Hand tighten the wing screws (over-tightening with a tool will cause damage to both

Control Head Connections

1. Connect the control head-to-junction box cable to the back of the control head.

2. Mount the microphone clip to a convenient spot near the control head.

Callout No.

1 0305760W01 WingScrew(2)
2 4380128N01 Screw (4)
3 4380128N01 Bushing (2)
4 3205780W01 Trunnion

Not shown 0780127N02 Gasket

the control head and the trunnion). After a few turns, tilt the control head for an
optimum view of t he display. Then complete tightening of the wing screws.

Motorola Catalogue

No.

Description

3. Plug the microphone into the control head front panel.

4. Attach the S-hook and crimp (on the microphone cable) to the hole on the control
head trunnion.

Junction Box Installation and Connections

Installation

Secure the junction box by screwing the four supplied screws straight into the location.

Connections

1. Connect all accessories to the junction box terminal board (see Figure 19 and

page 29)

2. Connect the control head-to-junction box cable to the junction box.

3. Connect the transceiver-to-junction box cable to the junction box.

.

Remote Mounting 23

4. Connect the Data cable to the junction box (if required).

Transceiver-to-Junction Box
Connection

Screws for securing the
junction box to the
mounting surface

6

2

3

4

Accessories
Connection

7

Visor Microphone
Connection

ControlHead-to-Junction Box
Connection

Figure 23 Connections to Junction Box

Table 4 Mechanical Parts for FLN2451 Junction Box and FLN2483 Data Junction Box

Callout No. Motorola Catalogue No. Description

1 0300139773 Screw (4)—not shown
2 1586069C01 Base Housing
3 1586070C01 Cover Housing
4 5486489F01 Raw Material Label
5 FLN8930A

FCN5969B

6 0300140338 Screw (4)
7 3108509G22 Connector

Optional HLN6372 Keylock Installation

Data Connection (available only

with DataJunction Box FLN2483)

PCB Assembly—not shown
PCB Assembly, Data Junction Box—not
shown

To install optional Keylock HLN6372 (see Figure 24), proceed as follows:

1. Place the two keylocks on each side of the transceiver mounting trunnion to cover
the two wing screws holding the transceiver.

2. Secure the keylocks w ith the lock key.

24 Remote Mounting

Wing Screw

Mounting
Trunnion

Key

Lock

Keylock
HLN6372

Figure 24 Optional Keylock Installation

Power Cable Installation

Before applying 13.8VDC primary power to radio for the first time, inspect wiring going

!

C a u t i o n

to accessory connector very carefully. Ensure that pin 1 (speaker+), and pin 2 (speaker-)
ARE NOT connected to chassis ground. Failure to follow this precaution may result in
permanent damage to the transceiver and require replacement of audio power amplifier
integrated circuit and/or complete transceiver board.

This radio must be operated only in negative ground electrical systems. Reverse polarity
will cause the cable fuse to blow. Check the vehicle ground polarity before you begin
installation to prevent wasted time and effort.

The DC power cable shipped with the mobile radio is long enough for installation in most
vehicles. Begin the power cable installation in the following manner:

1. Determine a routing plan for the power cable with reference to where the radio is to

2. Locate an existing hole with a grommet in the vehicle fire wall, or drill a 10 mm Ø

High degree of care should be exercised not to damage any existing vehicle wires.

!

be mounted.

access hole at the location for passing the power cable into the engine compartment.
Install a grommet with a 5 mm inner diameter in the access hole to avoid damage to
the cable.

C a u t i o n

3. From inside the vehicle, feed the red and black leads (without lugs attached) through
the access hole and into the engine compartment (see Figure 25).

To Transceiver

To Radio

Black Lead

Firewall

Red Lead

Grommet

Engine Compartment

Figure 25 Cable Routing into Engine Compartment

4. Locate the nearest available vehicle chassis ground mounting point and s horten the
black lead to remove excess cable length.

Remote Mounting 25

5. Install ring lugs (supplied) onto stripped end of power cable black lead, and onto
stripped end of red lead on fuse holder (see F igure 26).

6. Locate the fuse holder as close to the battery as possible and away from any hot
engine component. Mount the fuse holder using the provided mounting hole and
dress wires as necessary. Connect the fuse holder red adaptor lead plug t o the mating
receptacle on the red lead of the power cable (see Figure 26).

7. Connect the power cable black lead directly to the vehicle chassis ground.

8. Connect the power cable red lead from the fuse holder to the positive (+) battery
terminal. Make sure the adapt or cable is connected to the main power cabl e red lead.

9. Plug fuse into in-line fuse holder (see Figure 26).

Note

Failure to mount the red lead of the power cable kit directly to the battery may result in
severe alternator whine interference.

Microphone Installation

Firewall

Adapter

Red Lead

Black Lead

Fuse

Molded In-Line

Fuse Holder

Red Lead

Mounting

Hole

Engine

Compartment

To Vehicle

Chassis Ground

Figure 26 Power Cable Assembly

Cover

Red Lead

Ring
Lugs

To Battery (+)

See the instructions supplied with the microphone for complete installation information.

When connecting the various microphones available, make s ure to attach the “S Hook”
provided on the microphone cable to the trunnion.

26 Remote Mounting

Speaker Installation and Connection

Introduction

The MTM300 ships standard with the external speaker. The speaker is supplied with an
accessory plug attached to its cable and a strain relief clip which is threaded over the cable
between the speaker and accessory plug.

Speaker Installation

1. Ensure that the place where you are g oing to install the speaker is within user’s reach
and that the speaker will not obstruct vehicle operation.

2. Loosen the two wing screws of the trunnion bracket and remove the speaker.

3. Using the trunnion bracket as template, mark the locations of the three mounting
holes.

4. Centerpunch and drill a 4 mm Ø hole at each location.

5. Mount the trunnion bracket with the screws supplied (see Figure 27).

6. Insert the speaker into the trunnion bracket and tighten the two wing screws.

Figure 27 Mounting Speaker under Dashboard

Remote Mounting 27

Accessory Plug Removal

The accessory plug is not needed in case of remote mount installation.

1. Squeeze tabs together (see , A), and remove the cover from the accessory plug (see
Figure 28, B).

2. Using thumb pressure from the bottom of the shell, push the pin housing up and out
of the shell (see Figure 28, C).

3. Remove the speaker wires from the accessory plug.

Tabs

A

Speaker Connection

Cover

(Removed)

Cover

(In Place)

B

Figure 28 Disassembling and Reassembling Accessory Plug - Disassembly

Connect the pins of the wires to the junction box terminals 1 and 2.

1
2

SPEAKER

13 Location Side

C

Flat Side

Pin

Housing

Shell

28 Remote Mounting

JUNCTION BOX TERMINAL

Figure 29 Speaker Connection

Connections Plans for Junction Box Terminal

Connection Plan for Speaker

For connecting the speaker t o the junction box terminal, see above.

Connection Plan for Alarm Relay

BUZZER

5

RED

BLK

!

JUNCTION BOX TERMINAL

ALTERNATIVE

5

ALTERNATIVE

5

RED

BLK

RED

86

85 30

86

85 30

BLK

RED

87

RED

BLK

87

BLK

ALARM
RELAY

ALARM
RELAY

+12 V

+12 V

Figure 30 Alarm Relay Connection Plan

Do not short pin 5 of the terminal board to ground, as this may damage the radio.

+12 V

C a u t i o n

Connection Plan for Emergency Switch

EMERGENCY

SWITCH

JUNCTION BOX TERMINAL

Figure 31 Emergency Switch Connection Plan

Remote Mounting 29

Connection Plan and Installation of Ignition Sense Cable

An ignition sense cable, Motorola Kit Number GKN6263, is supplied with every mobile

Note

radio. Motorola strongly recommends that this ignition sense cable be used with every
mobile installation of the radio. Its purpose is to avoid the possibility that the radio may
reset and, therefore, turn off, during vehicle cranking, if the vehicle battery voltage drops
below a certain level.

The ignition sense cable kit contains a thin cable and a fuse holder. To install the cable,
carry out the following s teps.

1. Connect the stripped lead of the fuse holder cable only to an ignition switched
terminal of the fuse block. Use the supplied terminal or any other suitable terminal.

2. Mount the fuse holder using the mounting hole, and dress wires as required.

3. Cut the thin cable to the required length, crimp the supplied red lead to the stripped
lead of the thin cable, and connect it to the blue terminal of the fuse holder cable.

4. Connect the other end of the ignition sense thin cable to pin 4 of the junction box
terminal.

5. Insert the provided fuse into the fuse holder and close the cover.

IGNITION

SENSE

SWITCHED BATTERY VOLTAGE

JUNCTION BOX TERMINAL

CABLE

Figure 32 Connection Plan for Ignition Sense Cable

30 Remote Mounting

Desktop Mounting

General

The MTM300 may be desktop mounted. The Desktop Station option provides the radio
with an accessoryplug,tray,deskmicrophone,and power supply for use at a fixedlocation.
There are two types of trays: HLN6404 with Speaker and HLN6405 without Speaker.

If Desktop Tray HLN6404 was ordered, Accessory Plug HLN6412 is required for
connecting the tray’s built-in speaker to the desktop station.

If Desktop Tray HLN6405 was ordered, External Speaker HSN4024 is required. The
external speaker is supplied with an accessory plug already attached to its cable and a strain
relief clip which is threaded over the cable between the speaker and accessory plug.

Planning is the key to fast, easy radio installation. Before a hole is drilled or a wire is run,
inspect the location and determine how and where you intend to mount the antenna, radio,
and accessories. Plan wire and cable runs to provide maximum protection from pinching,
crushing, and overheating.

The installation planning should only be undertaken by persons who are competent and
able to ensure that the complete installation fulfils its regulatory requirements, such as
EMC (ElectroMagnetic Compatibility).

Installation Planning

To connect the radio, proceed as explained in the following paragraphs while referring to
Figure 33.

Choose a location for the radio as close as possible to where the antenna cable enters the
building.

Be sure line voltage power is available.
Make sure sufficient air can flow around the radio to permit adequate cooling.
Choose a flat s urface for the desktop tray and external speaker.
Be sure the mounting surface is able to adequately support the weight of the radio and tray.

Figure 33 Desktop Installation (with Tray HLN6404)

Desktop Mounting 31

Figure 34 Desktop Installation with Tray HLN6405 and Data Adapter FLN2659 (for Data Applications)

Desktop Installation

1. Prepare the accessory plug for connection as explained below.

2. Connect the accessory plug into the accessory connector at the bottom of the radio.

3.

Snap the strain relief clip, which is already threaded over the speaker cable (or
wires), into the slot at the back of the radio.

Speaker Cable

Strain Relief Clip

32 Desktop Mounting

Insert strain
relief clip her e

Back Cover

Figure 35 Connecting the Speaker Cable

4. Install the radio onto the tray.

5. Plug the desk microphone cable into the connector on the radio’s front panel.

6. Mount the antenna outdoors (see page 36).

7. Connect the antenna cable to the antenna BNC connector located at the back of the
radio.

8. Connect the power supply DC cable to the DC connector located at the back of the
radio. Plug the other end of the power supply DC cable into the power supply.

9. Connect the power supply AC cable to the power supply. Plug the other end of the
power supply AC cable into a wall outlet.

Installation Instructions for Accessory Plug

When using the FLN2659 Data Adapter, do not use the accessory plug (see Figure 34,

Note

Disassembling and Reassembling Accessory Plug

Note

page 32).

Numbers for pin locations in the pin housing of the accessory plug are visible only when
the p in housing is removed from the shell and its wings are fully open.

Desktop Mounting 33

Disassembly

g

1. Squeeze tabs together (see Figure 36, A), and remove the cover from the accessory
plug (see Figure 36, B).

2. Using thumb pressure from the bottom of the shell, push the pin housing up and out
of the shell (see Figure 36, C).

3. Open out both wings of the pin housing (see Figure 36, C)

4a. In case HLN6404 is used, Accessory Plug HLN6412 is supplied with the tray.

Remove the jumper wire from locations 1 and 2, and 4 and 9, in the accessory plug.
Add jumper wire to locations 21 and 10.
Remove the strain relief clip supplied with the accessory plug. Pass the pin ends of
the speaker wires, which are to be connected to the radio, through the eye of the
strain relief clip.

4b. In case HLN6405 is used, External Speaker HSN4024 is supplied with the tray.

Remove the jumper wire from locations 4 and 9 in the speaker’s accessory plug and
connect it to locations 21 and 10.

Tabs

Cover

(In Place)

Cover

(Removed)

A

B

13 Location Side

Pin

Housing

Flat Side

Shell

Location Numbers
(Visible only when

wings are open)

Pin

Housing

14

15

16

17

18

19

20

21

22

23

24

25

Win

D

C

Figure 36 Disassembling and Reassembling Accessory Plug - Disassembly

Wing

34 Desktop Mounting

5. Connect the speaker wires to pins 1 and 3 of the accessory plug.

VIEW UPON

INSERTION SIDE

Reassembly

!

C a u t i o n

13

ACCESSORY

CONNECTOR

1

25

14

1
3

SPEAKER

Figure 37 Connection Plan for Speaker

Do not short pins 1 and 3 of the accessory connector t o ground, as this may damage the
radio.

1. Insert the pin housing back into the shell in the opposite way it was removed. Be
certain that the 13-location side of the pin housing is facing the flat side of the shell.
Also be sure that the pin housing snaps securely into the shell and is not cocked in
the shell.

2. Install the cover back onto the accessory plug by snapping the cover over the tabs
and pressing down.

Desktop Mounting 35

Desktop Tray HLN6404

Figure 38 Desktop Tray HLN6404

Table 5 Mechanical Parts for Desktop Tray HLN6404

Post. Part No Description

1 3580009K01 Grille Cloth, Spea ker
2 5080085D03 Speaker, 75 x 44 mm dual (not

3 7510606A06 Bumper Rubber Black
4 0384725C09 Screw Tap 4.2 x 16
5 1580155J01 Housing, Desktop Tray
6 3002509Y01 Cable, Desktop Tray
7 4205722C02 Clip Fastener
8 4282018H18 Cable Retainer
9 1580154J02 Cover, Desktop Tray

10 7505190X01 Spacer, Desktop Tray

applicable for HLN6405)

36 Desktop Mounting

Motorcycle Installation

General

The motorcycle installation is engineered and tested by Motorola as a functional unit and
as suchprovidesareliableunitsuitable for the motorcycle environmentandoperationalvia
the included fist microphone and speaker. Some users may however require operation via
existing helmet headset/microphone -combinations and PTT. Therefore in the following
installation examples appropriate interface points are indicated. Please note that it is the
responsibility of the installing party to ensure that the inclusion of such accessories is not
in breach of applicable safety specifications.

The product warranty is void if defects are found to be caused by incompatible accessories,

Note

e.g microphone or helmet earpiece/microphone

The Motorcycle installation is a modified version of the remote mount i nstallation.
In the motorcycle m ount version of the MTM300, the radio unit (transceiver) is mounted

at the back of the motorcycle and the control head is mounted at the front on the fuel tank
or the handlebars. A data junction box interfaces the control head and the transceiver
through a pair of cables.

.

Installation Planning

The data junction box enables adding a laptop to the remote configuration.
Planning is the key to fast, easy radio installation. Before a hole is drilled or a wire is run,

inspect the vehicle and determine how and where you intend to mount the antenna, radio,
and accessories. Plan wire and cable runs to provide maximum protection from pinching,
crushing, and overheating.

The installation planning should only be undertaken by persons who are competent and
able to ensure that the complete installation fulfils its regulatory requirements, such as
EMC (ElectroMagnetic Compatibility).

To connect the MTM300, proceed as explained in the following paragraphswhile referring
to Figure 39.

The following l ist of considerations should, as a minimum, be checked during installation
planning:

• The recommended place for the transceiver is to place it in the box at the back of the

motorcycle.

• Mount the control head horizontally at a position which enables the driver to view the

controls and operate them easily.

• Be sure the control head is close enough to the vehicle operator to permit easy access

to operating controls.

• It is recommended to mount the control head directly on the chassis or handle part.

• Ensure that the units mounted in the motorcycle box are protected from dirt and

moisture.

Motorcycle Installation 37

• Ensure that the radio trunnion is grounded.

• Ensure that the control head and the control head trunnion are grounded.

• Verify that there is sufficient space around the units to allow air flow and removal.

• Verify that the cable from a handlebars mounted control head and to the radio unit is
long enough to allow for the handles to be turned.

• Verify that the antenna cable is routed in the shortest way to minimize power loss over
the cable.

• Check that the mounting surfaces are able to support the weight of the units.

Fist Microphone

12 V

Battery

F1 20A

Vehicle
frame
ground

or Helmet Microphone

Junction Box FLN2451
or Data Junction Box FLN2483*

Red

Black

To Microphone

Accessory
connector

Transceiver

Antenna

Antenna
connector
(BNC)

Antenna
cable

*Use Data Junction Box FLN2483 for Data Applications

Radio Control Head
on Handle Bars

38 Motorcycle Installation

in Motorcycle Box

Figure 39 Remote Mount Motorcycle Installation Overview

CONTROL HEAD

SPEAKER

CABLE

IGNITION

CABLE

MICROPHONE

BLOCK

CHASSIS GROUND

FUSE

HEADPHONES

TRANSCEIVER AND

JUNCTION BOX

BATTERY

FUSED POWER

CABLE

LOUDSPEAKER

FIST MICROPHONE

MOTORCYCLE BOX

ANTENNA

Figure 40 Example of Motorcycle Installation

Figure 41 shows an example of a PTT controlled installation, where audio is routed to the
external speaker mounted at the back when the PTT of the fist microphone is pressed.
Audio will be present in both the internal and external loudspeaker.

SHIELD

12 V +

Not supplied by Motorola

EXTERNAL

P3

SPEAKER

FIST MICROPHONE

"BREAK"

CONNECTION

JUNCTION BOX

MICROPHONE

GND
EMERGENCY
EXT ALARM
IGNITION
EXT. PTT
SPEAKER ­SPEAKER +

HEADPHONES

HANDSFREE
MICROPHONE

Figure 41 Example of External PTT Controlled Installation

EXTERNAL
PTT

Motorcycle Installation 39

Figure 42 shows an installation where switching between the front microphone and
loudspeaker and the back fist microphone and external loudspeaker takes place using a
manual double switch S1.

The switch can be activated by hand, or by the hinged cover.

• In “back” position (as shown) the Loudspeaker is on, and the front microphone is
disabled.

• In “front” position, the Loudspeaker is off, and the front or helmet microphone is on.

RADIO

FIST MICROPHONE

P1

LOUDSPEAKER

P3

S1B

S1A

JUNCTION

P2

P5
P4

1
3

BOX

HEADPHONES

EXTERNAL PTT

MICROPHONE
(HANDSFREE)

CONTROL HEAD

Figure 42 Example of Manual Select Between “Front” and “Back” use

of Microphone and Loudspeaker

Figure 43 shows an alternative installation of the loudspeaker and headphones where a
serial resistor can be used for volume adjustment. The minimum connected impedance is

3.2 ohm. The audio PA is a bridge amplifier.

MICROPHONE

40 Motorcycle Installation

JUNCTION BOX

SPEAKER ­SPEAKER +

LOUDSPEAKER

HEADPHONES

Figure 43 Example of Installation with Serial Resistor for Volume Adjustment

Other microphones can be connected either on the Junction Box or on P5.

P4 P5

Microphone from Junction Box 1 1
Ground 2 2
Microphone impedance 3 3

80 mV
DC imp. 20 Kohm

AC imp. 560 ohm
Bias 7.3 V

If the used microphone is different from the Motorola standard microphone (80 mV,
560 ohm) an interface could be used.

This can be placed either before the plug on the junction box or at P5.
Figure 44 shows two examples of installations with interfaces to the microphone.

LOW IMPEDANCE

*INTERFACE

JUNCTION

BOX

P5
P4

JUNCTION

BOX

P5
P4

DYNAMIC
MICROPHONE

LOW IMPEDANCE
DYNAMIC
MICROPHONE

*INTERFACE

Figure 44 Example of Installation with Microphone Interface

Installing and Connecting the MTM300

Transceiver Trunnion Installation

1. Using the trunnion bracket as a template, mark the positions of the holes on the
mounting surface (see Figure 45).

mounting surface, and

2. Centerpunch the spots you have marked and drill a 4 mm Ø hole at each mark.

3. Secure the trunnion mounting bracket with the four screws provided, ensuring that
the trunnion is grounded.

Transceiver Installation

1. Ensure that the plastic guides are aligned (horizontal) to the transceiver grooves.

2. Slide the transceiver grooves into the plastic guides until it snaps into place.

3. Secure the transceiver with the two wing screws provided.

* The Interface box will not be provided by Motorola

Use the innermost four holes for a curved

use the four outmost holes for a flat surface.

Motorcycle Installation 41

Wing Screw

PlasticGuides

Transceiver Connections

Trunnion

Thread Hole for
Wing Screw

Tabs

Wing Screw

Groove

Mounting Surface

Figure 45 Transceiver Trunnion Mounting

1. Connect the transceiver-to-junction box cable to the accessory connector.

2. After mounting the antenna (see page 45), run the antenna coaxial cable to the
transceiver mounting location. If necessary, cut off the excess cable.

3. Connect the antenna cable connector to the AntennaBNC connector at the rear of the
transceiver (see Figure 46). Ensure that the antenna’s cable connector is fully
tightened. DO NOT use an adaptor between the antenna cable connector and the
transceiver.

4. Install the power cable as explained on page 45. Cut the power supply cable to the
desired length and plug the power cable into the transceiver Power Connector (see
Figure 46).

Accessory
Connector(not visible)

Control Head Mounting Trunnion Installation

1. Using the control head trunnion as a template, mark the positions of the holes on the
mounting surface.

To Bat te ry+
via Fuse (F1)

Antenna

Connector (BNC)

(Red)

Figure 46 Connections to Radio

Vehicle Chassis Ground
(Black)

Power Connector

2. Centerpunch the spots you have marked and drill a 4 mm Ø (0.16 inch) hole at each
mark.

42 Motorcycle Installation

3. Secure the trunnion mounting bracket with the four screws supplied, ensuring that
the trunnion is grounded.

1

2

3

Bushing

4

Figure 47 Control Head Mounting Trunnion

Table 6 Mechanical parts for Control Head Mounting Trunnion (Motorcycle Version)

Callout No. Motorola Catalogue No. Description

1 0305760W01 WingScrew(2)
2 4380128N01 Screw (4)
3 4380128N01 Bushing (2)
4 0780127N02 Trunnion (Metal)

Not shown 3202113U01 Gasket

Control Head Installation

1. Install the bushings into the trunnion (see Figure 47).

2. Slide the control head into the mounting trunnion until it snaps into place.

3. Hand tighten the wing screws (over-tightening with a tool will cause damage to both
the control head and the trunnion). After a few turns, tilt the control head for an
optimum view of t he display. Then complete tightening of the wing screws.

4. Ensure that the control head is grounded. This should be done via one of the screens
that holds the connector at the back of the control head, see Figure 48.

OR

Figure 48 Ground Control Head as Shown

Motorcycle Installation 43

Control Head Connections

1. The control head-to-junction box cable is 2.5 m long. To determine the required

2. Connect the control head-to-junction box cable to the connector at the back of the

3. Connect the microphone to the microphone connector on the cable.

length, route the cable as required from control head to the junction box at the back
of the motorcycle. Be careful to route the cable in such a way that it will not be
subjected to abrasion, stretching, sharp bands or other types of injury.
If it is necessary to cut excess cable, this is done by cutting off the 15-pin D-sub
connector of the cable and shorten the cable to the required length. Make sure that
you have a spare 15-pin D-sub connector to replace the original connector.
Open the pin housing of the spare connector and connect the cable wires according
to Figure 49. Reassemble the pinhousing.

control head.

JUNCTION BOX CONNECTORCONTROL HEAD CONNECTOR

Twisted Pair

Alu. Shielded

Alu. Shielded

PIN

4

15
14
13

8
9
7
3

6

5
10
11
12

1
2

BUS-(SB9600)
BUS+(SB9600)

BUSY (SB9600)
D_GND
RX_AUDIO
MIC_ON_OFF
D_GND
RESET
UNSWB+
SWB+
N.C
EMC_KEYFAIL
N.C
AUDIO_GND
EMC_KEYLOAD

BUS-(SB9600)

BUS+(SB9600)

BUSY (SB9600)

D_GND

RX_AUDIO

MIC_ON_OFF

D_GND

RESET

UNSWB+

SWB+

N.C

EMC_KEYFAIL

N.C
N.C

EMC_KEYLOAD

N.C
N.C
N.C

PIN

4

15
14
13

8
9
7

3
17
18
10
11
12

1

2

5

6
16

BLACK
WHITE
BLACK/RED
BLUE
VIOLET
BLACK/YELLOW
GRAEY
BLACK/ORANGE
YELLOW
BLACK/GREEN

RED

GREEN

Junction Box Installation and Connections

Installation

Secure the junction box by screwing the four supplied screws straight into the location.

Connections

1. Connect all accessories to the junction box terminal board (seeFigure39andFigure
.

52)

2. Connect the control head-to-junction box cable to the junction box.

3. Connect the transceiver-to-junction box cable to the junction box.

Figure 49 Wiring Diagram

44 Motorcycle Installation

4. Connect the Data cable to the junction box (if required).

Transceiver-to-Junction Box
Connection

Screws for securing the
junction box to the
mounting surface

6

2

3

4

Accessories
Connection

7

Visor Microphone
Connection

Antenna Mounting

ControlHead-to-Junction Box
Connection

Data Connection (available only

with DataJunction Box FLN2483)

Figure 50 Connections to Junction Box

Table 7 Mechanical Parts for FLN2451 Junction Box and FLN2483 Data Junction Box

Callout No. Motorola Catalogue No. Description

1 0300139773 Screw (4)—not shown

2 1586069C01 Base Housing

3 1586070C01 Cover Housing

4 5486489F01 Raw Material Label

5 FLN8930A

FCN5969B

6 0300140338

7 3108509G22 Connector

PCB Assembly—not shown
PCB Assembly, Data Junction Box—not shown

Screw (4)

The recommended mounting location for the antenna is on the chassis or other stable part
on the motorcycle as far from the driver as possible.

Mount the antenna and shorten t he antenna cable using the provided instructions.

Power Cable Installation

Before applying 13.8VDC primary power to radio for the first time, inspect wiring going
to accessory connector very carefully. Ensure that pin 1 (speaker+), and pin 2 (speaker-)

!

C a u t i o n

ARE NOT connected to chassis ground. Failure to follow this precaution may result in
permanent damage to the transceiver and require replacement of audio power amplifier
integrated circuit and/or complete transceiver board.

This radio must be operated only in negative ground electrical systems. Reverse polarity
will cause the cable fuse to blow. Check the vehicle ground polarity before you begin
installation to prevent wasted time and effort.

Motorcycle Installation 45

!

The DC power cable shipped with the mobile radio is long enough for installation. Begin
the power cable installation in the following manner:

1. Determine a routing plan for the power cable from the motorcycle box to the

motorcycle’s battery.

High degree of care should be exercised not to damage any existing vehicle wires.

C a u t i o n

Note

2. Locate the nearest available vehicle chassis ground mounting point and shorten the

black lead to remove excess cable length.

3. Install ring lugs (supplied) onto stripped end of power cable black lead, and onto

stripped end of red lead on fuse holder (see F igure 51).

4. Locate the fuse holder as close to the battery as possible and away from any hot

engine component. Mount the fuse holder using the provided mounting hole and
dress wires as necessary. Connect the fuse holder red adaptor lead plug t o the mating
receptacle on the red lead of the power cable (see Figure 51).

5. Connect the power cable black lead directly to the vehicle chassis ground.

6. Connect the power cable red lead from the fuse holder to the positive (+) battery

terminal. Make sure the adapt or cable is connected to the main power cabl e red lead.

7. Plug fuse into in-line fuse holder (see Figure 51).

Failure to mount the red lead of the power cable kit directly to the battery may result in
severe alternator whine interference.

Fuse

Molded In-Line

Fuse Holder

Cover

Adapter

Red Lead

Black Lead

Figure 51 Power Cable Assembly

Red Lead

Mounting

Red Lead

Hole

Ring
Lugs

To Battery (+)

To Vehicle

Chassis Ground

Microphone Installation

See the instructions supplied with the microphone for complete installation information.
When connecting the various microphones available, make s ure to attach the “S Hook”

provided on the microphone cable to the trunnion.

46 Motorcycle Installation

Speaker Installation and Connection

Introduction

The MTM300 ships standard with the external speaker. The speaker is supplied with two
wires to be mounted on the Junction box terminal.

Speaker Installation

1. Ensure that the place where you are g oing to install the speaker is within user’s reach
and that the speaker will not obstruct vehicle operation.

2. Loosen the two wing screws of the trunnion bracket and remove the speaker.

3. Using the trunnion bracket as template, mark the locations of the three mounting
holes.

4. Centerpunch and drill a 4 mm Ø hole at each location.

5. Mount the trunnion bracket with the screws supplied (see Figure 52).

6. Insert the speaker into the trunnion bracket and tighten the two wing screws.

TRUNNION BRACKET

Speaker Connection

INTERNAL MOUNTING PLATE

Figure 52 Example of Mounting Speaker Trunnion in Motorcycle Box

Connect the pins of the wires to the junction box terminals 1 and 2.

EXTERNAL
SPEAKER

JUNCTION BOX TERMINAL

SPEAKER

Figure 53 Speaker Connection

Motorcycle Installation 47

Connections Plans for Junction Box Terminal

Connection Plan for Speaker

For connecting the speaker to the junction box terminal, see Figure 53 on page 47.

Connection Plan for Alarm Relay

5

ALTERNATIVE

5

RED

RED

86

85 30

BUZZER

BLK

RED

87

ALARM
RELAY

+12 V

JUNCTION BOX TERMINAL

Figure 54 Alarm Relay Connection Plan

!

Do not short pin 5 of the terminal board to ground, as this may damage the radio.

C a u t i o n

Connection Plan for Emergency Switch

ALTERNATIVE

5

BLK

RED

86

85 30

BLK

RED

BLK

87

ALARM
RELAY

BLK

EMERGENCY

SWITCH

+12 V

+12 V

Connection Plan and Installation of Ignition Sense Cable

An ignition sense cable, Motorola Kit Number GKN6263, is supplied with every mobile
radio. Motorola strongly recommends that this ignition sense cable be used with every

Note

48 Motorcycle Installation

mobile installation of the radio. Its purpose is to avoid the possibility that the radio may

JUNCTION BOX TERMINAL

Figure 55 Emergency Switch Connection Plan

reset and, therefore, turn off, during vehicle cranking, if the vehicle battery voltage drops
below a certain level.

The ignition sense cable kit contains a thin cable and a fuse holder. To install the cable,
carry out the following s teps.

1. Connect the stripped lead of the fuse holder cable only to an ignition switched
terminal of the fuse block. Use the supplied terminal or any other suitable terminal.

2. Mount the fuse holder using the mounting hole, and dress wires as required.

3. Cut the thin cable to the required length, crimp the supplied red lead to the stripped
lead of the thin cable, and connect it to the blue terminal of the fuse holder cable.

4. Connect the other end of the ignition sense thin cable to pin 4 of the junction box
terminal.

5. Insert the provided fuse into the fuse holder and close the cover.

TO IGNITION

SWITCH

IGNITION

SENSE

SWITCHED BATTERY VOLTAGE

CABLE

JUNCTION BOX TERMINAL

Figure 56 Connection Plan for Ignition Sense Cable

Motorcycle Installation 49

NOTES

50 Motorcycle Installation