156 90000-508
G3
Installation Guide
8
2.5.3 Antenna Installation
1.
Route good quality 50-ohm coaxial ca-
bles (e.g. RG-223) from each of the se-
lected antenna positions to the position
where the G3
unit is mounted.
2.
Terminate the end at each of the antenna
positions with the appropriate connector
for the antenna used and make the con-
nection.
3.
At the G3
position, cut the three ca-
bles to length and terminate with the ap-
propriate plug. For the transceiver and
the auxiliary cables, use a Mini-UHF
crimp plug using an appropriate crimp-
ing tool. For the GPS, use a SMA con-
nector.
4.
Positively identify
the transceiver mini-
UHF plug and connect to the left rear of
G3
.
5.
Positively
identify
the auxiliary receiver
mini-UHF plug and connect to the front
left of G3
to the RX position.
6.
Connect the SMA connector to the
GPS* position below the auxiliary con-
nector position.
7.
Do not skip this last step, trust us; it is
an important one.
To complete the in-
stallation, tie-wrap together the auxiliary
and the GPS antenna cables at a point
about two inches in front of the unit. It
will be much easier hereafter to cor-
rectly identify which mini-UHF plug
goes where. You DO NOT want to cross
the auxiliary plug with the transceiver
plug.
2.6. Completing the physical
Installation.
To complete the physical installation and
prior to testing G3
:
•
Connect DC Power cable’s connector to
G3
’s until you hear a click as the two
parts snap together.
•
Re-check that all other connections are
secure (antennas, PC, etc.)
•
Switch vehicle ignition ON.
You are now ready to check for normal op-
eration and to run Dataradio test commands
for testing or trouble-shooting.
2.7. Checking out Normal
operation
Check that the vehicle ignition is ON.
1.
Check for proper operation of the G3
’s LEDs as per Table 1 in section 3.1
2.
Using the Dataradio test commands pro-
gram and an in-line wattmeter, check
forward & reverse power to confirm
main antenna installation (as per section
4).
3.
Using Dataradio test commands, check
the RF Data Link with a base station
that can be heard (as per section 4.3.2.
If user application and its base station
are available, test the installation by
going through a normal sequence of
transmitting and receiving messages.