User's Manual

August 7, 2003 6881096C72-A
2-14 Standard Configurations: Ignition Cable
Figure 2-22. Cabling Interconnect Diagram for Dash Mount
2.4 Ignition Cable
Motorola supplies an ignition sense cable and recommends that it be used with every mobile
installation. The ignition sense cable allows the radio to be turned on and off with the vehicle ignition
switch, and allows the radio to “remember” the state of the radio on/off switch, even if it is changed
while the vehicle is off.
• For radio ON/OFF control independent of the ignition switch, connect the red ignition cable
(orange for remote) (pin 25 of accessory connector) to “battery hot” at the vehicle fuse block.
• For radio ON/OFF control via the ignition switch, connect the red ignition cable (orange for
remote) to “ignition” at the fuse block.
Note that for remote mount installations, the green and orange leads are connected, not the red lead
from the rear of the radio. See
Table 2-1.
The ignition sense cable uses either a 3-amp (P/N 6580283E01) or 4-amp (P/N 6580283E02) fuse.
For other considerations when connecting the ignition cable, see the XTL 5000 Basic Service
Manual (Motorola publication part number 6881096C73).
2.5 Antenna
In keeping with sound installation practice and to maximize radiation efficiency, a one-quarter (¼)
wave length antenna should be installed at the center of the vehicle roof. If it is absolutely necessary
to mount the antenna on the vehicle’s trunk lid, use an appropriate 3-db gain antenna. For VHF
50-watt models operating above 20 watts and UHF 40-watt models, the one-quarter (¼) wave
length antenna should be mounted in the center of the roof only to assure compliance with
FCC standards; it should not be mounted on the trunk lid.
Any new antennas, other than those already approved for XTL 5000, need to be tested for FCC
regulatory compliance before use. For a list of Motorola-approved antennas, visit the following web
site: http://www.motorola.com/cgiss/index.shtml
.
NOTE: You may not trim the antenna cables for VHF and 700 MHz bands.
RADIO COMPARTMENT = OPERATOR COMPARTMENT
VEHICLE BATTERY
COMPARTMENT
A good chassis connection via the black primary
power cable is essential for radio operation and
to prevent damage to the radio and cable kit.
Connection to the vehicle frame is desirable.
VEHICLE
BATTERY
15A OR 20A
FUSE
PART OF
VEHICLE
WIRING
VEHICLE
IGNITION SWITCH
ON/ACC
GROMMET
RADIO POWER CABLE
(RED/BATTERY HOT)
RADIO IGNITION
CABLE (thin RED)
SPEAKER
3A OR 4A FUSE
MICROPHONE
RADIO POWER CABLE (BLK/GROUND)
RADIO
(-)
(+)
CAUTION
MAEPF-27646-O
Rear connector
CH
SEE NOTE
NOTE:
Caution: if you choose to connect the radio’s IGNITION line directly to the car’s battery, excess use of the radio when the car’s ignition is not running (i.e. alternator running)
could result in a slow discharge of the car’s battery. This configuration allows the radio to operate with the car’s ignition switch ON or OFF.
If the radio’s IGNITION line is wired to the car’s ignition switch, the radio will only function when the car’s ignition switch is turned ON.