Motorola Dimetra MTM300 Installation Instructions Manual

Brand: Motorola

Model: Dimetra MTM300

Type: Installation Instructions Manual

MTM300, Mobile Radios

Installation Instructions

68P02400U20-D

@6802400U20@

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

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 semiconductor 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,

thepurchaseofthese productsshall not bedeemed togrant eitherdirectly orby implication,

estoppel, or otherwise, any licence under the copyrights, patents, or patent applications of

the holders of the rights, except for the normal non-exclusiveroyalty free licence to use that

arises by operation of law in the sale of the product.

iii

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

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

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.

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

vii

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

viii

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

Safety and General information 1

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 safety 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 offer this

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)

2 Safety and General information

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 every electronic device is susceptible to electromagnetic interference (EMI)

if inadequately shielded, designed or otherwise configured for electromagnetic

compatibility.

FACILITIES

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.

MEDICAL DEVICES

• Pacemakers

The Health Industry ManufacturersAssociationrecommendsthat 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.

Safety and General information 3

• 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

• 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 referredtoaboveincludefueling

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 off your 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

nearelectrical blastingcaps, in ablasting area, orin areas posted:“Turn offtwo-wayradio”.

Obey all signs and instructions.

W A R N I N G

4 Safety and General information

MOBILE RADIO OPERATION AND EME EXPOSURE

To 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 different ranges of rated radio power.

Table 1 Rated Power and Lateral Distance

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) Instructions in the Radio Installation Manual

FIXED SITE ANTENNAS

Mobile radio equipment is sometimes installed at a fixed location 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 setforth 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.

Rated Power of Vehicle-installed Mobile

Two-way Radio

Minimum Lateral Distance from

Transmitting Antenna

Less than 7 Watts 20 Centimetres

7 to 15 Watts 30 Centimetres

16 to 50 Watts 60 Centimetres

More than 50 Watts 90 Centimetres

Safety and General information 5

ANTENNA PRODUCT INFORMATION

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

Table 2 Antenna Product Information

EMC GUIDELINES

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.

EUROPEAN UNION DIRECTIVES CONFORMANCE STATEMENT

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

Kit Number Description Used in Radio Models

FAE5521 1/4 Wave Rooftop

Antenna 380-400 MHz

M12PCN6TZ5BN, M12PCN6TZ7BN, M12PCN6TZ8BN

FAE6003 1/4 Wave Rooftop

Antenna 410-430 MHz

M12QCN6TZ5BN, M12QCN6TZ7BN, M12QCN6TZ8BN

6 Safety and General information

NOTES

Dash Mounting 7

Dash Mounting

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 list 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 operate 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.

Figure 1 Example of Top or Under Dash Mounting

Radio

Speaker

Antenna

Batter

Radio

8 Dash Mounting

Figure 2 Example of In Dash Mounting

Figure 3 Dash Mount Installation

Radio

Battery

Speaker

Antenna

Speaker

Dash Mounting 9

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

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.

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

connection plans in this section.

10 Dash Mounting

2. Plug the 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.

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.

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’s cable connector is fully tightened. DO

NOT use an adaptor between the antenna cable connector and the radio.

Accessory Plug

Strain Relief Clip

Wires

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

Wing Screw

Trunnion

Plastic Guides

Tabs

Wing Screw

Mounting Surface

Groove

Thread Hole for

Wing Screw

Trunnion

Wing Screw

Holes for

S-Hook

Dash Mounting 11

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 the 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 radio

trunnion.

Figure 8 Connections to Radio

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 with the lock key.

Figure 9 Optional Keylock Installation

Antenna

Connector (BNC)

To Battery+

via Fuse (F1)

(Red)

Power Connector

Vehicle Chassis Ground

(Black)

Wing Screw

Key

Lock

Keylock

Mounting

HLN6372

Trunnion

12 Dash Mounting

Power Cable Installation

Before applying 13.8 VDC 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-)

ARE NOT connected to chassis ground. Failure to follow this precaution may result in

permanentdamage to theradioand requirereplacementof audio poweramplifier 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

be mounted.

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

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.

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

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).

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 Figure 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 to 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.

C a u t i o n

Black Lead

Red Lead

Firewall

Grommet

Engine Compartment

To Radio

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Motorola Dimetra MTM300 Installation Instructions Manual

Motorola Dimetra MTM300 Installation Instructions Manual

Motorola Dimetra MTM300 Installation Instructions Manual

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