120 20110-142
Gemini
PD
Installation Guide
3
2. Installation
2.1 Planning the Installation
2.1.1 Overview
To ensure trouble-free, efficient installation,
start by inspecting the vehicle to determine
the optimum position for Gemini
PD
and its
antennas as well as the routing of all associ-
ated cabling and wiring.
2.1.2 Location
Often, installations in cars are done in the
trunk, underneath the back window ledge or
on the trunk floor. In vans and small trucks,
it is usually done in the back of the vehicle.
In large vehicles, it is often done in the front
cabin.
Be sure to place the Gemini
PD
unit in such a
way that:
•
The LEDs can be seen (as an aid in
troubleshooting)
•
Access to the antenna DE-9 connectors
is possible without removing the unit
•
Sufficient air may flow around the unit
to provide adequate cooling
Gemini
PD
is not fully waterproof, therefore it
should be mounted sufficiently away from an
opened trunk lid or opened tailgate, windows
or doors to avoid exposure to rain and/or
snow. It also minimizes the chance that mate-
rial can be accidentally thrown on the unit or
of someone bumping against it.
2.1.3 Cable
Path
Try to route the cables away from locations
where they would be exposed to heat (ex-
haust pipes, mufflers, tailpipes, etc.), battery
acid, sharp edges, mechanical damage or
where they would be a nuisance to automo-
bile mechanics, the driver or the passengers.
Keep wiring away from automotive com-
puter modules, other electronic modules and
ignition circuits to help prevent interference
between these components and radio equip-
ment.
Try using existing holes in firewall and trunk
wall and the channels above and below or
beneath the doors, channels through doors
and window columns that are convenient to
run cables and wires.
Whenever possible, install conduit in which
to run the cables.
2.2 Warnings
Before starting installation, review all of the
following warnings.
2.2.1 RF Radiation warning
The Federal Communications Commission
(FCC), with its action in the General Docket,
79-144, March 13, 1985, has adopted a
safety standard for the human exposure to
radio frequency electromagnetic energy
emitted by FCC-regulated equipment. Only
proper installation of the transceiver antenna
of Gemini
PD
as summarized in section 2.5
will result in user exposure substantially
below the FCC recommended limits.
Qualified personnel must do all antenna in-
stallations. See paragraph 2.5.2 for recom-
mended antenna positioning.
Transmissions when persons or animals out-
side the vehicle are within two feet of the
antenna may result in radio energy radiation
burns or related injuries.
2.2.2 Interference with vehicular
electronics
Certain vehicle electronic devices may be
prone to malfunction due to lack of protec-
tion from radio frequency energy present
when transmitting.
It includes, and is not limited to:
-
Electronic fuel injection systems
-
Electronic anti-skid braking systems
-
Electronic cruise control systems
