Installation; Model 1010 Radio/Gps Unit Mounting Location Considerations - GTT Opticom GPS System Installation Manual

Intersection Equipment Installation Instructions

5 Installation

This section describes the installation of
intersection equipment. There are two models of
the Radio/GPS unit. See section 5.2.1 for details
on installing the Model 1012 Radio/GPS unit.
5.1 Model 1010 Radio/GPS unit mounting
Location Considerations
Read and understand the following precautionary
paragraphs before starting the installation.
•
The Model 1010 radio/GPS unit should be
mounted in a location that has an
unobstructed view of all approaches out to a
distance of 2500 feet.
•
Blockage of approaches by things such as
bridges, buildings, walkways, and trees should
be avoided.
•
The Model 1010 radio/GPS unit is usually
mounted to the mast arm or span wire pole
nearest the traffic controller cabinet. If an
appropriate mounting location on a mast arm
or span wire pole is not available, you can
mount the unit to a span wire. Try to use a
signal head or sign mount to minimize sway.
•
The Model 1010 radio/GPS unit should be
mounted level and as high as possible. Do
not mount the unit upside down.
•
The Model 1010 radio/GPS unit should have
an unobstructed view of at least 50% of the
sky.
•
The mounting location should be such that
the cable run from the radio/GPS unit to the
phase selector (located in the traffic controller
cabinet) is no more than 250 feet.
•
The radio/GPS cable may be run through
conduit or attached to a messenger wire. The
cable should not be suspended unsupported.
•
The Model 1010 radio/GPS unit should be
oriented such that the cable retainer is facing
an area from which vehicles will NOT be
approaching. See Figure 5-1.
•
Do not paint the Model 1010 radio/GPS unit
cover. Metals or metal oxides in the paint may
interfere with GPS reception and/or radio
reception/transmission.
•
Do not modify the radio/GPS unit circuitry.
There are no user-serviceable parts inside.
IMPORTANT NOTE
Modifying the radio/GPS unit may seriously
damage the equipment and void the warranty.
Do not attempt to modify the radio/GPS
circuitry in any way. Modifying the radio and/or
antenna in any way may cause the radio to
violate FCC/IC requirements.
REMARQUE IMPORTANTE
La modification du système radio/GPS risque
d'endommager sérieusement le matériel et
d'annuler la garantie. Ne pas tenter de modifier
les circuits du système radio/GPS de quelque
façon que ce soit. En modifiant le système radio
et/ou l'antenne de quelque façon que ce soit, la
radio risque de ne plus répondre aux exigences
de la FCC/IC.
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