Dc Power Cable Installation - Motorola iDEN i50sx Owner's Manual

DC Power Cable Installation

The Car Kit must be operated only in negative ground electrical systems.
Reverse polarity (positive ground) will trigger protection circuits which
cause the cable fuse to open. Check the ground polarity before you begin
installation to prevent wasted time and effort. Only 12V DC automotive
systems are directly supported. For 24V DC operation, external con-
verter (NNTN4079) is required.
The DC power cable shipped with the Car Kit is long enough for instal-
lation in most vehicles. Begin the power cable installation in the follow-
ing manner.
1. Route the red and black leads of the main power cable to convenient
chassis ground and positive supply voltage connection points. If it is
necessary to penetrate the firewall, use an existing opening or, if
necessary, drill a new hole of approximately 9/16 inch or 3.5 cm.
Insert a grommet into the hole to prevent damage to the power
cable. When making connections on the engine side of the firewall,
additional in-line fuse holders (included) should be used at the con-
nection points.
2. Cut the black lead to the desired length.
• If the connection is to be made under the dash or in the vehicle
cabin, connect the black lead directly to the chassis of the vehicle.
• If connection is made in the engine compartment, connect the black
in-line fuse holder between the black lead of the power cable and
the desired chassis connection point.
NOTE:
3. Cut the red lead to the desired length. This lead will be connected
such that it has positive supply voltage at all times, even when the
vehicle is turned off.
• If connection is to be made under the dash or in the vehicle cabin,
connect the red lead to a positive supply voltage point.
• If connection is to be made in the engine compartment or directly to
the battery, connect the red in-line fuse holder between the red lead
of the power cable and the desired positive voltage connection
point.
6
It is not good practice to connect the black lead to the
negative (-) battery terminal; the Car Kit could be
damaged if there were a malfunction in the vehicle's
electrical system.
CAR KIT OWNER'S MANUAL