Honeywell Vx9 Manual

4 - 19
With Relay/Mechanical Switch for Screen Blanking
This option requires a relay/switch that supplies a mechanical electrically conductive connection on vehicle 
motion.
ThorVX8
Vehicle
Mounted
Computer
Circular
Power
Connector -Vi
-Vo +Vo5
6
1
3
-Vi-Vo
+Vo
+ViGND
10A slowfuse
Close to power
source
Cable Shield Existing Circuitry onVehicle
Forklift Battery
Main Switch
Green
Yellow
Brown
White
DC/DC
Power
Supply
Switch
ThorVX9
Vehicle
Mounted
Computer
Circular
Power
Connector -Vi
-Vo +Vo5
6
1
3...

4 - 20
DC/DC Power Supply (Lid with Screws on Top)
The instructions in this section are for the DC/DC power supply models with input and output connection blocks located 
under a removable lid which is secured by screws through the top of the lid:
 VX89301PWRSPLY – Power Supply, DC to DC, 9 to 36V, 60W
 VX89A302PSDC48V – Power Supply, DC to DC, 18 to 60V, 60W
 VX89303PWRSPLY– Power Supply, DC to DC, 60 to 110V, 60W
For other styles of DC/DC power supplies, refer to Determining Power Supply Type (page...

4 - 21
2. If the Thor VX9 is on, perform a shut down.
3. Connect the power cable to the Thor VX9.
4. Route the cable from the Thor VX9 to the DC/DC power supply.  Route the power cable the shortest way pos-
sible.  The cable is rated for a maximum temperature of 105°C (221°F).  When routing this cable, it should be 
protected from physical damage and from surfaces that might exceed this temperature.  Do not expose the 
cable to chemicals or oil that may cause the wiring insulation to deteriorate.  Always...

4 - 22
17.  If used, connect the wiring from the vehicle to the screen blanking box.
18. Use proper electrical and mechanical fastening means for terminating the cable.  Properly sized “crimp” type 
electrical terminals are an accepted method of termination.  Select electrical connectors sized for use with 
18AWG (1mm
2) conductors.
19. Provide mechanical support for the cable by securing it to the vehicle structure at approximately one foot inter-
vals, taking care not to over tighten and pinch...

4 - 23
With Screen Blanking Box
It is assumed that the motion sensing circuitry in the illustration below is powered by internal vehicle circuitry 
and is any 12-60/72VDC signal triggered by vehicle motion (see blanking box label for allowable range).
Circular
Power
Connector
DC/DC
Power
SupplySupplied Power Cable
(Shielding tobe trimmed)5
6
1
3 Green
Yellow
Brown
White
Existing Circuitry onVehicle
Forklift Battery
-Vo
+Vo
10A slowfuse
Close to power
sourceMain SwitchThorVX8
Vehicle
Mounted
Computer
- +...

4 - 24
With Relay/Mechanical Switch for Screen Blanking
This option requires a relay/switch that supplies a mechanical electrically conductive connection on vehicle 
motion.
Circular
Power
Connector
DC/DC
Power
SupplySupplied Power Cable
(Shielding tobe trimmed)5
6
1
3 Green
Yellow
Brown
White
Existing Circuitry onVehicle
Forklift Battery
-Vo
+Vo
10A slowfuse
Close to power
sourceMain SwitchThorVX8
Vehicle
Mounted
Computer
- + -
+
Switch
Circular
Power
Connector
DC/DC
Power
SupplySupplied Power Cable...

4 - 25
DC/DC Power Supply (with Connector Blocks on Side)
The instructions in this section are for the DC/DC power supply models with input and output connection blocks located 
on the side of the power supply:
 VX89305PWRSPLY – Power Supply, DC/DC, 9 to 36V, 75W
 VX89306PWRSPLY – Power Supply, DC/DC, 18 to 60V, 75W
For other styles of DC/DC power supplies, refer to Determining Power Supply Type (page 4-14) for information.
Specifications for electrical supply
Please refer to the appropriate wiring...

4 - 26
2. If the Thor VX9 is on, perform a shut down.
3. Connect the power cable to the Thor VX9.
4. Route the cable from the Thor VX9 to the DC/DC power supply.  Route the power cable the shortest way pos-
sible.  The cable is rated for a maximum temperature of 105°C (221°F).  When routing this cable, it should be 
protected from physical damage and from surfaces that might exceed this temperature.  Do not expose the 
cable to chemicals or oil that may cause the wiring insulation to deteriorate.  Always...

4 - 27
14. Connect the -Vi connector on the input block to battery negative.  
15.  If used, connect the wiring from the vehicle to the screen blanking box.
16. Use proper electrical and mechanical fastening means for terminating the cable.  Properly sized “crimp” type 
electrical terminals are an accepted method of termination.  Select electrical connectors sized for use with 
18AWG (1mm
2) conductors.
17. Provide mechanical support for the cable by securing it to the vehicle structure at approximately...

4 - 28
With Screen Blanking Box
It is assumed that the motion sensing circuitry in the illustration below is powered by internal vehicle circuitry 
and is any 12-60/72VDC signal triggered by vehicle motion (see blanking box label for allowable range).
Circular
Power
Connector
-Vo +Vo
DC/DC
Power
SupplySupplied Power Cable
(Shielding tobe trimmed)5
6
1
3 Green
Yellow
Brown
White
Existing Circuitry onVehicle
Forklift Battery
-Vo
+Vo
10A slowfuse
Close to power
source
-Vi
+Vi
Main Switch
ThorVX8
Vehicle...