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STU/I MOUNTING INSTRUCTIONS 

 

Items Provided 

 

STU unit (triangular box 9” x 7.25” x 4.25”) 
 
Items Needed 
Lift, ramp or other approved system able to reach mounting location 
 
Installation Procedure 

5.

 

Remove STU from its delivery box 

6.

 

We HIGHLY RECOMMEND putting the STU outside in direct sun as soon as 
received to allow for solar charging of the batteries (even if you are not installing 
right away). If the internal batteries are completely dead then the STU will require at 
least 1 to 3 hours in the sun to start reporting and 24 to 48 hours of sun to charge its 
internal batteries fully. 
NOTE: if your unit has magnetic mount then it also has a choice for a 9volt battery 
installation on the back of the unit. This will help boost the unit’s initial power but is 
not enough power to run the unit. 

7.

 

Determine mounting location on asset.  A suitable mounting location has the 
following: 

 

F.

 

Provides exposure to the sun.   

G.

 

Provides a relatively flat surface for attaching system. 

H.

 

Is high enough so that the unit is out of reach. 

I.

 

Due to transmission of RF signal we suggest installing the STU with a clear 
view in front of it.  However, we understand this is not always possible 
therefore, a good rule of thumb would be to have at least 6 feet of clearance 
in front of the STU in order to avoid reception problems. 

J.

 

Is a structurally rigged and solid part of the railcar or asset.  This is 
highly important.   The accuracy of impact results from the STU/I will be 
affected if they are mounted on sheet metal, or other areas that vibrate and 
“ring” during impact. 

K.

 

Unit can be placed lying down on top of the asset or car but it is important to 
notate the orientation of the unit so that the impact axis for longitudinal, 
vertical and lateral can be determined.  Orientation can be determined by 
notating which direction the “top” sticker on the STU is facing. For example, 
is the “top” sticker facing to the side of the car/asset or to the front/back of 
the car/asset? 

L.

 

The STU/I can also be placed on the front, back or side of an asset (make 
sure that the unit gets sun and has nothing directly above it). It is not 
recommended to install the unit on the front or back of a non-cushioned 
railcar due to the possiblity   

 

8.

 

Using standard safety procedures, access mounting location with a lift or ladder and 
attach unit with #10 self drilling screws or bolts.  If attaching to the top of a 
fiberglass trailer, it is recommended to through bolt the unit. (Bolting on the unit is 
only needed if magnetic mount was not purchased). 

 

Summary of Contents for Solar Tracking Unit

Page 1: ...ing Unit STU With Sensor Options User s Guide and Installation Instructions Version 1 1 A X13000 May 28 2009 LAT LON LLC 4251 S Natches Court Unit C Sheridan CO 80110 877 300 6566 Phone 303 531 5754 F...

Page 2: ...S This product contains commodities technology or software that fall within the Export Administration regulations Diversion contrary to U S law is prohibited FCC NOTICE This equipment has been tested...

Page 3: ...unshielded cables is likely to result in interference to radio and TV reception The user is cautioned that changes and modifications made to the equipment without the approval of manufacturer could v...

Page 4: ...TU ELECTRICAL SPECIFICATIONS 10 MECHANICAL SPECIFICATIONS 10 STU FUNCTIONAL SPECIFICATIONS 10 OPTIONAL SENSORS 11 STU IMPACT DETECTION 11 STU I MOUNTING INSTRUCTIONS 13 STU RF WIRELESS SENSORS 14 RF W...

Page 5: ...eivers such as the STU use the GPS satellite system to get their latitude and longitude position as well as exact time GPS satellites transmit data to GPS receivers on earth GPS satellites do not rece...

Page 6: ...5 is a self contained unit that includes everything that is required to track an asset The unit contains an internal GPS and data communication antenna a GPS receiver a data communications radio a rec...

Page 7: ...then the unit will store the message and try to send it out at the next report time The two possible reasons that a message will not be sent immediately are 1 The unit can not communicate with a cell...

Page 8: ...pdate the location of the STU and asset to which it is attached when stationary Move Begin Reports A message to update the location of the STU and to report that the STU has started moving Move End Re...

Page 9: ...nough power to run the unit 3 Determine mounting location on asset A suitable mounting location has the following A Provides exposure to the sun B Provides a relatively flat surface for attaching syst...

Page 10: ...energy storage Dual 0 9 Watt 24 cell solar panels MECHANICAL SPECIFICATIONS STU Size 9 2 x 6 8 x 4 25 Weight 2 lbs Screw Mounting 4 10 x self drilling screws STU FUNCTIONAL SPECIFICATIONS Reporting fr...

Page 11: ...ge during this type of impact Delta Velocity or DV is the sum of the accelerations during the impact event More technically it is the integral of the acceleration over time The DV measures the net cha...

Page 12: ...The ALARM event will give you the following information Time of the event GPS coordinates including nearest town X axis G force and DV in 10Hz and 100Hz filtering Y axis G force and DV in 10Hz and 100...

Page 13: ...not always possible therefore a good rule of thumb would be to have at least 6 feet of clearance in front of the STU in order to avoid reception problems J Is a structurally rigged and solid part of t...

Page 14: ...STU The STU can be set to send out a report on the receipt of each RF message over the air configurable The STU can also be set to take a picture on the receipt of a digital change of state RF message...

Page 15: ...ible to the STU RF The maximum range is about 60 feet RF sensors have a serial number and are keyed to a STU RF Make sure you mount the correct RF sensors with the correct STU RF RF sensors and the ST...

Page 16: ...digital change of state example door open Camera STU Infrared LED info The STU can illuminate a night shot up to about 20 feet away Cannot be seen by a human when on Only come on during the process o...

Page 17: ...ot installing right away If the internal batteries are completely dead then the STU will require at least 1 to 3 hours in the sun to start reporting and 24 to 48 hours of sun to charge its internal ba...

Page 18: ...eet of clearance in front of the STU in order to avoid reception problems Q It is important to have the camera lens pointing in the correct direction as well as the correct level to insure a good pict...

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