National Fleet Tracking NFT-1175 User manual

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NFT-1175 / NFT-2820
Installation Manual
NFT-1175 / NFT-2820 Tracker | Revision Date 6-23-14

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Table of Contents
Before Installing ..................................................... 3
Tools Needed For Installation................................ 3
GPS Fundamentals ................................................ 4
Checking the Contents of the Box ....................... 4
Installing and Mounting the GPS Unit.................. 5
Cable Interface........................................................ 6
12 VDC Power Connection ........................ 6
Ground Connection.................................... 6
Refrigerated Trailer Option......................... 7
Temperature Sensor Wiring....................... 7
Activating the TTU-1200 Unit ................................. 8
Troubleshooting Chart .......................................... 9

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BEFORE INSTALLING
Prior to the installation process, thoroughly review and adhere to the following
items.
Installation Manual
Use only a Digital or Analog Volt Meter - DO NOT USE TEST LIGHT!
Check for possible installation locations for the GPS unit prior to
permanent installation.
ALWAYS LOOK BEFORE DRILLING. Make sure that the installation
process does not cause damage to any vehicle hose, electrical loom, or to
any part of the vehicle.
Make note of the unit serial number prior to installation.
Prior to working on any part of the dashboard (instrument cluster, center
console, glove box, etc.), remove the negative and positive terminal from
the battery to deactivate the sensors for the airbags. Refer to the Owner’s
Manual and to a Shop Manual for the vehicle for specific instructions in the
temporary disconnection process.
DO NOT place objects, including communication equipment, in the area
over the airbag or near the airbag deployment area.
Refer to the Owners Manual and to a Shop Manual of the vehicle for
specific information related to the electrical wiring, interior disassembly,
and any other mechanical aspects of the vehicle.
TOOLS NEEDED FOR INSTALLATION
Metric and standard socket set
Screwdriver set
Side cutters, wire cutters
Wire strippers
Pliers
Terminal crimpers
Digital Multimeter
Electrical tape
Flashlight
Warning: It is highly recommended that a Digital Multimeter be used when
probing electrical systems in the vehicle to prevent damage to factory
components.

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GPS FUNDAMENTALS
There is a minimum of 24 operational GPS satellites at all times. The satellites,
operated by the U.S. Air Force, orbit the earth every 12 hours. Each GPS
satellite transmits data that indicates its location and the current time. All GPS
satellites synchronize operations so that these repeating signals are transmitted
at the same instant. The signals, moving at the speed of light, arrive at a GPS
receiver at slightly different times because some satellites are farther away than
others.
The distance to the GPS satellites can be determined by determining the amount
of time it takes for their signals to reach the receiver. When the receiver
determines the distance to at least four GPS satellites, it can by triangulation,
calculate its position in three dimensions.
To ensure the GPS unit receives enough satellite signals at acceptable signal
strength, it must be mounted so that it has a clear view of the sky. In hidden
locations, such as under the dash, a clear view can be challenging. In these
locations, it is important to keep any metal interference as far as possible from
the top portion of the GPS unit so that the most accurate position can be
calculated.
While GPS data collection has improved in ease and speed, some obstacles
remain. Solid or dense objects can block GPS signals. Wet trees with heavy
branches and leaves can mask or attenuate GPS signals. Mountains and
buildings can block satellite transmission. Multipath signals can corrupt GPS
data. Multipath is a reflected signal from some nearby objects. The resulting
propagation delay can affect measurement accuracy. GPS electronics
advancements have reduced the multipath threat but GPS field operators and
users should be aware of obvious multipath environments.
CHECKING THE CONTENTS OF THE BOX
The contents of the box containing the NFT-1175 are shown below:
Model Contents
NFT-1175 1. NFT-1175 Unit
2. 2 Ring Crimp Terminals

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INSTALLING AND MOUNTING THE GPS UNIT
The GPS unit will work best if it has a clear view of the sky and as much of the
horizon as possible with no metal between it and the sky. Any metallic objects
between the GPS unit and the satellites will degrade the signal and reduce the
overall performance. For best signal acquisition, the roof of the trailer is the
recommended mounting position. (This will require extending the wires on the
unit to reach your trailer wiring socket or refer unit battery.) You can also mount
the device on the front of the trailer as pictured below. For refrigerated trailers
the device can be mounted inside the refer shroud (as long as it is plastic or
fiberglass) and you can use the refer units battery for the external power source.
WARNING Any metal structure can affect the accuracy of the GPS signals and
prevent normal operation. Location of the GPS unit is critical to the operation.
The GPS unit can be installed on
any type of vehicle. The unit should
be mounted so it will not be exposed
to damage from people or objects.
The GPS unit has tabs for mounting
screws or you can use epoxy or
double sided tape to attach the unit
to your trailer.

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CABLE INTERFACE
Main Harness Connections in Detail
RED and White (+) 12volt Input When Connected to Truck
Locate the Red wire and the White wire found on the cable connected to the
GPS unit. The red wire AND the white wire must be connected to a 12-volt
source from the vehicle that will be connected to the trailer. (See optional
Refrigerated Trailer instructions on the next page) It's important that the 12 volt
power source maintains 12 volts at all times the trailer is in motion.
BLACK (-) Chassis Ground Input
Locate the Black wire found on the cable connected to the GPS unit. The black
wire must be connected to a solid chassis ground uninhibited by paint or plastics.
It is important that you do not use any floating grounds from the vehicles
electrical system. Always connect the ground directly to the chassis body and
secure with a factory bolt or aftermarket screw insuring wire to metal connection.
It is also advised that you connect a jumper to the pin in your trailer wiring socket
that is the “Ground return to towing vehicle”
SAE J560 and J1067 Wiring Circuits
Terminal Color Lamp and Signal Circuits
1 White Ground return to towing vehicle
2 Black Clearance, side marker,
3 Yellow Left turn signal and hazard lamps
4 Red Stop lamps and antilock devices
5 Green Right turn signal
6 Brown Tail and license plate lamps
7 Blue Auxiliary
Note: Trailer trackers are shipped with NO
charge on the internal battery. The trailer must
be attached to a truck for it to be powered; it
takes 24-48 hours to completely charge the
internal battery.
Note: It is imperative that the units wiring is connected to pins that will be
powered by ALL trucks in your fleet. Use a multimeter to check the connection
coming from your trucks to verify how your trucks are wired. If a large
percentage of your trucks do not provide power to the auxiliary power pin you
may consider wiring the units to the marker lights. (Under this scenario the
device will ONLY receive external power when the lights are on. If you use this
method we strongly recommend you have your drivers always drive with their
lights on.)
WARNING: IT IS IMPORTANT THAT ALL WIRING CONNECTIONS ARE SECURE
AND WATERTIGHT FOR RELIABLE OPERATION OF THE UNIT.

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CABLE INTERFACE (Refrigerated Trailer Option)
Main Harness Connections in Detail
RED and White (+) 12volt Input
Locate the Red wire and the White wire found on the cable connected to the
GPS unit. The red wire AND the white wire must be connected to a 12-volt
source. We recommend the positive side of the battery for the refer unit.
BLACK (-) Chassis Ground Input
Locate the Black wire found on the cable connected to the GPS unit. The black
wire must be connected to a solid chassis ground uninhibited by paint or plastics.
We recommend the negative side of the battery for the refer unit.
TEMPERATURE SENSOR WIRING
RED
Locate the RED wire from temperature sensor, this will be connected to the
BLACK wire on the GPS unit.
WHITE
Locate the WHITE wire from the temperature sensor, this will be connected to
the WHITE/BLUE wire on the GPS unit.
NOTE: If you need to extend the wires on the temperature sensor we
recommend using CAT-3 phone cable and phone style splices.

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Activating the NFT-1175 Unit
Prior to the initial powering of the unit, move the vehicle outside, so that the GPS
receiver can receive signals from the GPS satellites.
Upon initial power up of the NFT-1175 the LEDs start flashing on the side of the
unit to determine if the unit is powered on. If the LED is not flashing after 60sec,
check the power connections. The statuses of the LED’s are below.
Status LED Definitions
Orange LED Status
GSM/GPRS Cellular Communications Green LED Status GPS Communications
Blinking – Tracker on, searching for wireless signal Blinking – GPS on, searching for satellite
signal
Patterned Blinking – Signal acquired, unit trying to
establish connection to the communication server
Solid – 2-way communication link with the
communication server established Solid – GPS lock established
After the unit has been powered for 5 to 15 minutes, the unit will send in a
“power-up” message.
While waiting for the power-up message, collect the following information before
calling in (855-438-4771 option2) for activating the unit:
Account ID
Vehicle Name
Device IMEI number
Please verify with tech support that the device has been activated and is working
properly before putting the unit back in service.

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TROUBLESHOOTING CHART
Symptom Cause
Unit Does Not Power-up Power is not connected to the unit. With a
Digital Volt Meter, measure the voltage at
the input to the unit. A positive voltage
should be measured on the + terminal of
the unit when measuring between the +
terminal and the - terminal or chassis
ground. This voltage should also measure
12 VDC. Correct the wiring to assure the
correct polarity and the correct voltage
level. Check fuse.
Bad Ground connection. Make sure the ground is
connected directly to metal with no paint or residue. Use a
Digital Multimeter to test continuity to ground to ensure
good connection.
Unit Does Not Find
Cellular Service The unit is not receiving the local cellular system. The main cause of this is poor signal strength due to shielding or
coverage. Make sure the GSM (Orange) light is solid, move
the unit outside the building and or outside of vehicle if
necessary and re-apply power to the unit. Move vehicle to
acquire better signal if necessary. Contact tech support if
problem persists.
Unit Does Not Receive a
GPS Signal The GPS receiver is unable to lock into the satellites or receive signal. Make sure GPS (Green) light is solid if not,
make sure that the unit’s label is facing skyward and that
there is no metal between it and the sky including but not
limited to the roof of the vehicle and any dash bracing. If it
is, the move the vehicle outside of or away from any
building/garage to allow the internal GPS antenna in the
unit to have a clear view of the sky. You may need to power
the unit outside of the vehicle as some vehicles may have
metallic or leaded windshields. Contact tech support if
problem persists.