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Emergency Switch

No modifications are required to use the optional emergency switch. Re-

fer to the connection diagram for wiring details.

External And Remote Internal Speakers

No modifications are required to use a single external speaker with the

radio (a horn speaker is configured as an external speaker). If a remote inter-
nal speaker is used in addition to the external speaker, the radio jumper con-
figuration must be changed. See Table 1, Figure 3, and the connection
diagram for details.

Figure 3 - Speaker Wiring

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Bypass Ignition Switch

The bypass ignition switch option allows the radio to be operated at all

times. In this configuration, the ignition switch may be turned off and the ra-
dio will continue to operate. Refer to Table 1, the connection diagram, and
the power cable installation section of this manual.

RUNNING CABLES

To assure the feasibility of the cable routes you plan to use, it is sug-

gested that you run the cables before installing the radio. Be sure to leave
some slack in each cable so that the radio may be pulled out for servicing
with the power applied.

Try to route the cables away from locations where they will be exposed

to heat (exhaust pipes, mufflers, tailpipes, etc.), battery acid, sharp edges, or
mechanical damage, or where they will be a nuisance to automobile mechan-
ics, the driver, or passengers. Keep wiring away from ignition circuits to
help prevent noise pickup in the radio equipment.

In addition, try to utilize existing holes in the fire wall and trunk wall and

the channels above or beneath the doors. You may also use the channels
through door and window columns, where they are convenient, unless you
plan to install rigid or flexible conduit in which to run the cables.

The yellow ignition sense lead (part of power cable) must be con-
nected to A+ before the radio can be programmed.

NOTE

Figure 4 - Typical Cable Routing

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Summary of Contents for LBI-38610A FMD

Page 1: ...LBI 38610A Mobile Communications Installation Manual FMD MOBILE RADIO AND ACCESSORIES ...

Page 2: ...HE INSTALLATION 4 EQUIPMENT REQUIRED 5 INSTALLATIONS IN VEHICLES POWERED BY LIQUEFIED LP GAS 5 RADIO CONFIGURATION 7 Emergency Switch 8 External And Remote Internal Speakers 8 Bypass Ignition Switch 9 RUNNING CABLES 9 MOUNTING THE RADIO 10 POWER CABLE INSTALLATION 10 MICROPHONE 12 ANTENNA 13 HORN SPEAKER OPTION 13 INSTALLATION 14 EMERGENCY SWITCH MOUNTING 15 CONNECTION DIAGRAM 16 2 ...

Page 3: ...should be programmed Refer to the applicable programming manual for instructions RADIO INSTALLATION The following paragraphs will explain how to mount and wire the FMD ra dio Installation and wiring of external options are also covered External connection points on the FMD radio are shown in Figure 1 The FMD radio is supplied with a test personality Save this person ality with the programmer befor...

Page 4: ... radio FMD Radio Unit Package of mounting hardware Mounting bracket Power Cable Microphone Microphone hanger Remote internal speaker optional with FMD scan model External speaker optional Emergency switch optional Operator s manual Installation manual PLANNING THE INSTALLATION Before starting plan your installation carefully so that it will be Safe for the operator and passengers Convenient for th...

Page 5: ...c fuel injection systems electronic anti skid braking systems electronic cruise con trol systems etc are typical of the types of electronic devices which may be prone to malfunction due to the lack of protection from ra dio frequency energy present when transmitting If the vehicle con tains such equipment consult the dealer for the make of vehicle for help in determining if such electronic circuit...

Page 6: ...Figure 2 Typical Installation 6 ...

Page 7: ... the internal circuit card assemblies in order to support the selected options Refer to Table 1 and the maintenance manual for information Only the installed options should be enabled The FMD System model does not have a speaker within the radio due to the position ing of the keypad therefore it comes standard with the remote internal speaker option Connector option FMCN1B or Connector Cable optio...

Page 8: ... Internal Speakers No modifications are required to use a single external speaker with the radio a horn speaker is configured as an external speaker If a remote inter nal speaker is used in addition to the external speaker the radio jumper con figuration must be changed See Table 1 Figure 3 and the connection diagram for details Figure 3 Speaker Wiring 8 ...

Page 9: ...o route the cables away from locations where they will be exposed to heat exhaust pipes mufflers tailpipes etc battery acid sharp edges or mechanical damage or where they will be a nuisance to automobile mechan ics the driver or passengers Keep wiring away from ignition circuits to help prevent noise pickup in the radio equipment In addition try to utilize existing holes in the fire wall and trunk...

Page 10: ...operator Mount the radio where it will not interfere with the safe operation of the ve hicle or cause a hazard to passengers in case of an accident Refer to Figure 5 for details on securing the mounting bracket The mounting bracket may be placed over or under the radio housing de pending on the mounting location Additionally the radio may be tilted within the mounting bracket to allow the best vie...

Page 11: ... than one circuit that is switched by the ignition switch and one may be available that does not have large filter capacitors or a leakage path If a different pickup point cannot be found try adding a 470 ohm 1 watt resistor from the ignition sense pickup point to ground This will discharge the capacitor s or reduce the leakage voltage Current drain through this resistor will be minimal less than ...

Page 12: ...itch position ignition switch bypass Before connecting the radio to power refer to Table 1 and the connection diagram for the proper jumper configuration and wiring de tails The power connectors lock into place when they are mated together Squeeze the end of the connector when disconnecting the power plug MICROPHONE The microphone has an internal hookswitch which is activated when the microphone i...

Page 13: ...ssenger compartment to the antenna base Once the antenna is installed connected it to the TNC connector at the left rear of the radio HORN SPEAKER OPTION The horn speaker may be used as an external speaker It may be mounted un der the hood on the vehicle roof or other suitable location The horn speaker option includes horn speaker and speaker cable assembly Figure 8 Microphone And Microphone Hange...

Page 14: ...crews Next drill a 5 8 inch hole for the speaker ca ble and insert rubber grommet in the hole 3 Attach the backing plate to the mounting surface with two 8 32 thread forming screws and lock washers 4 Route cable from radio through backplate under mounting surface grommet and gasket to the speaker Refer to the operator s manual for the external speaker volume ad justment procedure NOTE Figure 9 Hor...

Page 15: ...ll radios 9 Connect the speaker to the DB 25 connector as shown EMERGENCY SWITCH MOUNTING An optional external emergency switch may be used with the radio After the switch is mounted it should be connected to the radio as shown in Fig ure 10 CONNECTOR COVER If the MDT connector is not used place the protective cover Figure 1 over the unused connector and tighten the retaining screws The cover pre ...

Page 16: ...Printed in U S A CONNECTION DIAGRAM 19D438446 Sh 1 Rev 4 ...

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