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Prism TM450 Installation Guide for JBus 1708 and 1939  

Teletrac Inc. 

1634-0300 00 

Page 6 

In the Dashboard  

 

Antenna should be placed as high as possible in the dash with a clear view out the 
windshield with no metallic obstructions. 

 

Antenna must be secured in place to assure it does not move and degrade signal. 

 

Test the antenna prior to putting everything back together because some 
dashboards are made with carbon composites that will deteriorate the signal 
strength.

 

 

Testing the Installation 

Verifying that the installation is fully operational is the single most important part of the 
installation.   

Before you start the Installation Test, turn the ignition to the On position for 1 minute, 
and then turn it back to Off. 

Step 1:  

Once all power and antenna connections are complete, make sure the  

 

 

Transceiver is working properly.  The easiest way to do this is using an MDT  

 

 

955.   

 

 

Press <Control 1> to Display Radio Status, Confirm Registration and RSSI 
(>105) 

 

Confirm that the IP number displayed matches the paperwork

.   

 
Step 2

:   

Press <Control 2> in the MDT to confirm that: 

 

The number of satellites acquired is greater than 5, and  

 

The SNR is greater than 33.   

 

Confirm that date and time are valid (the time reflected will be GMT -5 to 
-8 hours of your local time). 

 
Step 3:  

MUST

 

be completed for an installation to be completed! 

There are 2 possible ways to complete Step 3: 

Option 1

- Use the eClient software - Log into the customer’s account in 

eClient on your laptop or another computer, and confirm that the IP you are 
working with is in the customer’s account and is assigned to a vehicle.   

Once you have done this, perform a locate on the vehicle to confirm that the 
vehicle responds.  

Summary of Contents for Prism TM450

Page 1: ...Prism TM450 Installation Guide For JBus 1708 and 1939 Document Number 1624 0301 00 Date May 5 2010...

Page 2: ...TM2J 2 Installation 3 Main Power Connections 4 Alternate Power Input 4 Antenna 5 Antenna Placement 5 Hidden Antenna Placement 5 Testing the Installation 6 TM450 Hardware Information 8 Firmware Version...

Page 3: ...pproved Diesel trucks starting in 1998 The TM450 supports 1708 and 1939 with its internal decoder There is no need of mechanical configuration to select one protocol over the other The communication s...

Page 4: ...he antenna This makes perfect antenna connections very simple and more reliable no more lose or too tight connectors The connector features a locking mechanism that guarantees perfect connection every...

Page 5: ...Prism TM450 Installation Guide for JBus 1708 and 1939 Teletrac Inc 1634 0300 00 Page 3 Installation...

Page 6: ...ce of power The ignition connection should be made to a source of power other than the Accessory Alternate Power Input In situations where the JBUS does not have power an alternate power input is supp...

Page 7: ...is angled at less than 60 degrees Do not use on vehicles with racks that overhang the windshield Approved Locations On the top of a flat roof with no obstructions Attached to an approved extension to...

Page 8: ...ce all power and antenna connections are complete make sure the Transceiver is working properly The easiest way to do this is using an MDT 955 Press Control 1 to Display Radio Status Confirm Registrat...

Page 9: ...Web Reporter see the eClient Training Guide or Help Topics in eClient about Creating Reports WARNINGS Installation is NOT complete unless all 3 of the above described steps are completed Testing with...

Page 10: ...und GND Black 6 Positive Battery VBATT Red View looking in to connector Figure 1 Accessory Connector CON2 1 Microphone input MIC IN 2 Normally high switch input INHIGH 3 Ground GND 4 Emergency switch...

Page 11: ...12 6 Smartnav switch input TSW NA 7 Relay driver output RELAY1 Blue 8 SAE J1708 bus A signal J1708A Yellow twisted with Blue 9 CAN bus L signal CANL Brown twisted with Red 10 Microphone input MIC IN...

Page 12: ...ny ______________ Vehicle Number ______________ VIN Number ________________________ Make and Model _______________Year ________License Plates___________ Teletrac Options Installed JBUS OBDII PTO MDT e...

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